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  • $50 hourly
    • 5.0/5
    • (30 jobs)
    I'm a full stack software developer with experience in Java and Android projects. I focus on service and delivering the best experience to my clients, while providing quality software on a timely fashion. I have experience with various technologies to help fulfill any kind of job. I'm also open to having a chat with my customers, if they so desire, so we can arrange any details about the job. I also have experience with Cyclos Banking System Software, providing consultant services to small-medium banks. I've done several integrations with 3rd parties software with it, also developed plenty of aditional feature for it too, like bank statements and import of payments. I have experience on the following languages and technologies: -Java: Everything enterprise, Servlets, JSF, Primefaces and JPA. -JavaScript: pure Script, NodeJS and AngularJS. -PostgreSQL, SQLServer, SQLLite I also have experience providing products and solutions for financial institutions. My biggest desire is to serve my customers as if I was the person requesting the product. I always strive to deliver the best software since I wouldn't settle for less.
    Featured Skill J2EE
    Email Campaign Setup
    Android App Development
    Microsoft SQL Server Programming
    API Development
    MySQL Programming
    Java Servlet API
    JavaScript
    Java
  • $16 hourly
    • 4.8/5
    • (30 jobs)
    Fullstack developer with more than 10 years of experience in IT industry, working on cutting edge technologies providing a highly scalable and efficient system. Technology Stack on which I have worked Java Frameworks: Spring, Struts, Hibernate, JPA, Spring Security, Spring MVC, Spring Boot. Java EE Stack: Web services, XML, JAXB, JavaFX Web Technologies: HTML, CSS, JQuery, JSON , Angular 5/6/7/8, Angular 14, Angular 15 Application Servers: Tomcat, JBoss, Glassfish, AWS, AWS Lambda, Microsoft Azure, Google Cloud Database: Oracle, MySQL , Postgres ,MongoDB, N0sqlcouch DB Operating System: Ubuntu, Linux, Windows Mobile app tech : Android, iOS, Kotlin, RXJAVA, Swift, objective c, API
    Featured Skill J2EE
    OAuth
    AWS Lambda
    Web Application
    Spring Framework
    AngularJS
    Hibernate
    Amazon Web Services
    Java
    Node.js
  • $15 hourly
    • 4.2/5
    • (30 jobs)
    Boost your projects with an experienced Java Backend Developer with over 7+ years of expertise in creating strong and scalable solutions. I am skilled in Java, Spring Boot, and various backend technologies and I have the know-how to enhance your systems for top-notch performance. Let's work together to make your software ideas a reality, ensuring a smooth and future-proof foundation for your success, as I have developed around 50 + Java Backend Projects from Scratch. My skills: --------------- - Technologies: Java - Frameworks: Spring Framework, JPA, Apache Struts2, REST Services. - Database Access: JDBC, Hibernate, Spring(JDBC Template, Hibernate Template, Jpa Template), Spring Data. - Databases: MySQL, SQL Server, MongoDB, PostGres, Oracle - Web Application Server - Tomcat Apache, Nginx, AWS and Weblogic Server - Unit Testing Tools: JUnit, TestNG, Mockito - Reporting Tools: JasperReport, iText - Version Control Systems: SVN, BitBucket, GitLab, GitHub, VSS - Project management & Building tool: Maven, Ant --> A bit more about me. ----------------------------- I Have 7+ years of experience as a Senior Java Developer with expertise in Java 8 and above, Spring Boot, Microservices, Kafka, and cloud platforms such as AWS and GCP. - I have extensive experience working with the Spring ecosystem, including Spring Boot, Spring MVC, Spring Data, and Spring Security, to develop enterprise-grade applications - Have experience in building web applications using Java-based technologies such as Java Servlets, JavaServer Pages (JSP), and JavaServer Faces (JSF) - Proficient in using Java concurrency and multithreading techniques and key knowledge of Junit testing and test-driven development (TDD). - Implements HTML/CSS/JavaScript for user interface, stores data in a MySQL database, utilizes AWS S3 for cloud-based storage & integrates. - Designed and developed a scalable and reliable Kafka-based streaming pipeline to process millions of events per second in real-time and Implemented Kafka Connect to integrate Kafka with other data sources such as databases and messaging systems. I also believe that communication is the best solution to win any project. So Letโ€™s hop on a quick call to discuss the project in a more detailed way. ๐Ÿ™‚ WHY WORK WITH ME -------------------- * High availability * High-end monitoring and debugging * Great app performance * Details make the fabric, so I pay attention to them * Professional applications I can collaborate with you on communication & project management processes using Upwork, JIRA, Trello, and SLACK while using the Agile & Scrum methodology. I will make sure to update you on a regular basis. It would be helpful if you could send me your required documents or task list so that I can analyze your project and provide you with an estimate of the time and cost to finish your project promptly. * No Delays* * 100% Transparency* * 100% Success* I pay special attention to the quality assurance of the products and services I deliver. I believe communication is the key to every successful project. I look forward to discussing your project with you and finalizing the details. Best Regards Kailash
    Featured Skill J2EE
    Git
    MVC Framework
    Spring Boot
    Amazon ECS for Kubernetes
    Core Java
    Jakarta Server Pages
    JavaScript
    React
    Spring Framework
    Database Architecture
    Hibernate
    DevOps
    Java
    AngularJS
  • $22 hourly
    • 4.8/5
    • (133 jobs)
    Zoho One Consultant (CRM, Creator, Analytics, Zoho Flow, Zoho Projects, Zoho Forms) and Implementation Partner โœ”Ex-employee of Zoho with 20+ years of IT experience ๐Ÿ†Best Zoho Partner of the Year award winner ๐Ÿ’ก Expert and skilled development Team of 50+ members ๐Ÿฅ‡100+ Happy Clients and 300+ projects successfully implemented on Zoho One services and Salesforce โœ”Experience in Building Vertical CRM Solutions โœ” Deluge script experts and build complex workflows, better look & feel that are not supported directly in Zoho โœ”Build multiple extensions and published in Zoho marketplace Zoho platform โœ” Integrations specialist ๐Ÿ”ธ Zoho CRM + Zapier ๐Ÿ”ธZoho CRM + Zoho Projects ๐Ÿ”ธ Zoho CRM + Zoho Booking ๐Ÿ”ธ Zoho CRM + Zoho Sign ๐Ÿ”ธ Zoho CRM + Zoho Flow ๐Ÿ”ธ Third party systems include Amazon, Ebay, BigCommerce, Xero, QuickBooks Online and Desktop, Stripe, Authorize.net, Shipstation and much more โœ”Expertise on Zoho One that includes Zoho Creator, Zoho CRM, Zoho Analytics, Zoho Books, Zoho Desk, Zoho Recruit, Zoho Inventory, Zoho Forms, Zoho Flow โœ”Projects implemented for verticals that include Inventory and Order Management, Subscription Management, Health Care, Leave Tracking, Field Service Management and much more โœ”Experience in Salesforce DX setup and creating Managing Packages โœ” Assisted clients to clear the Salesforce Security Review and publish Managed packages in Salesforce AppExchange โœ” Salesforce Integration with 20+ third party systems across verticals
    Featured Skill J2EE
    AWS Application
    AWS CloudFront
    Salesforce App Development
    Zoho Analytics
    Amazon MWS
    Zoho Platform
    eBay API
    MEAN Stack Administration
    Zoho Sprints
    Zoho CRM
    Zoho Creator
    AWS Lambda
  • $50 hourly
    • 5.0/5
    • (32 jobs)
    An agile and ambitious software engineer with a strong technical background who possesses self-discipline, hardworking, quick learning, good team spirit, and honesty. 13+ years of experience in software development for enterprise-level applications using arrays of technologies. โžข Strong Programming skills, in designing and implementation of multi-tier applications using Spring Boot, Spring MVC, Java-J2EE, ASP.Net MVC, .Net Core, Node, Express, Struts, JSF, CDI, Spring Data JPA, JPA, Hibernate, Spring Rest, Spring Data JPA, Spring Security, Kafka, liquibase etc. โžข Efficient in working with Dockerfile, Docker-Compose & Docker Containers. โžข Extensive experience in working with JavaScript/TypeScript languages, frameworks, libraries, and technologies such as React JS/ Angular. โžข Extensive experience in working with CSS3, HTML5, SCSS, and their frameworks such as Bootstrap, Material UI, etc. โžข Strong experience in all the phases of software development life cycle including requirements gathering, analysis, design, implementation, deployment and support. Technologies I work on: J2EE - Spring - Spring - Boot - Spring- Security - Maven/Gradle - Apache Kafka - Redis - JMS/Rabbit MQ - Spring Data JPA - Hibernate JavaScript : - ES6 - jQuery - Angular - React JS - Node - Express - TypeOrm/ Sequilize Python: - Flask - Django Testing: - Rest Assured - Junit - TestNG - Mockito Reporting : - Jasper Report. DB: - Mysql - MSSQL - PostgreSQL - Oracle - MongoDB
    Featured Skill J2EE
    Spring MVC
    Microservice
    API Development
    SQL
    React
    Spring Framework
    JHipster
    Spring Boot
    Java
    Node.js
    TypeScript
    Python
    API Integration
  • $500 hourly
    • 5.0/5
    • (33 jobs)
    ๐Ÿฅ‡Expert-vetted (top 1%) Upwork freelancer. ๐Ÿ’กTop AI voice in LI. ๐Ÿ‘” 10+ years of experience on executive tech positions. โญ๏ธโญ๏ธโญ๏ธโญ๏ธโญ๏ธ "Ivan seamlessly navigated the complexities of the non-deterministic nature of OpenAI/LLMs. Highly recommend! Ivan - Exceptional work on our POC. Thank you." โญ๏ธโญ๏ธโญ๏ธโญ๏ธโญ๏ธ "Amazing to work with. Went above and beyond expectations." โญ๏ธโญ๏ธโญ๏ธโญ๏ธโญ๏ธ "Ivan understands AI and LLMs really well, heโ€™s a great communicator and transparent about his methods and efforts." ----------------------- Hello! I'm all about technology and the magic it brings to our lives. . There's something truly special about building things from scratch and watching them take off. With a solid foundation in tech, I have a particular interest in the final product โ€” its user experience, design, and the customer's journey. Collaborating with product and business teams is something I thoroughly enjoy, as it brings together different perspectives for a common goal. My area of expertise lies in Artificial Intelligence, Machine Learning, and Natural Language Processing. Here are some of the services I commonly offer: - Strategic AI audits and guidance - Elevating existing products with AI enhancements - Designing and developing new AI-centric solutions - PoC/MVP for AI projects I've had the privilege of working with over 50 companies, including notable names like UBS, Yahoo, STC, and Hitachi. This experience has allowed me to contribute significantly to the growth and transformation of various products. Interested in exploring how AI can revolutionize your product? I'd love to chat about your vision and how we can bring it to life. Feel free to reach out, and let's start a conversation about your next big step in innovation. ----------------------- Some of my AI and ML skills include: โœ… Data Science and Machine Learning expertise including Deep Learning, Natural Language Processing, and Computer Vision using TensorFlow, PyTorch, Keras, scikit-learn, Numba, etc. โœ… API Development and Integration, including external API integration like OpenAI API. โœ… Expertise in Reinforcement Learning and its applications in complex environments using libraries like OpenAI Gym, Stable Baselines, and RLlib. โœ… Advanced skills in data preprocessing, feature engineering, and dimensionality reduction techniques for machine learning models. โœ… Proficiency in time-series analysis and forecasting using ARIMA, LSTM, and Prophet for predicting future trends. โœ… Development of chatbots and virtual assistants using platforms like Dialogflow, Rasa, and Microsoft Bot Framework. โœ… Experience with Generative Adversarial Networks (GANs) for creative applications such as art generation, style transfer, and data augmentation. โœ… Implementation of recommendation systems using collaborative filtering, content-based, and hybrid approaches. โœ… Proficient in big data analytics using Apache Spark, Hadoop, and related ecosystems for handling large-scale data processing. โœ… Knowledge of edge computing and deploying AI models on edge devices using TensorFlow Lite, PyTorch Mobile, and ONNX. โœ… Expertise in computer vision tasks like object detection, image segmentation, and facial recognition using OpenCV and Dlib. โœ… Strong background in mathematics and statistics, essential for algorithm development and model optimization. โœ… Experience with cloud platforms like AWS, Google Cloud, and Azure for deploying and scaling machine learning models. โœ… Capable of conducting AI-driven research and development, staying at the forefront of emerging technologies and methodologies. โœ… Ability to communicate complex AI/ML concepts to non-technical stakeholders and collaborate effectively with interdisciplinary teams. P.S. Curious about the future of AI in your industry? Drop me a message, and I'll share my insights and predictions!
    Featured Skill J2EE
    RESTful Architecture
    RESTful API
    NGINX
    Web Application
    Database Architecture
    API Integration
    Elasticsearch
    Hibernate
    Spring Framework
    Java
    Docker
    Microservice
    Apache Kafka
    Kubernetes
    Architectural Design
  • $50 hourly
    • 4.3/5
    • (52 jobs)
    Greetings All, I'm a Lead Architect with 11+ years of experience in web development. I have developed different kinds of projects, including eCommerce systems, CRM software, corporate websites, APIs and other internal scripts. โ€ข A quick learner with a penchant of performing under pressure. strong team player with excellent interpersonal and communication skills, strong analytical and problem solving skills. โ€ข Overall 11+ years of experience in development of Mobile, Web & Enterprise applications using PHP5, JAVA and J2EE Technologies. โ€ข Artificial Intelligence and Automation - Prompt Engineering, AI Agent Development using n8n - Large Language Model Integration and Conversational AI using Langchain and Botpress - AI Chatbots, Retail AI Voice Bots, and Generative AI โ€ข Hands on experience in Core Java, Servlets, JSP, JDBC, Spring, SpringBoot, Hibernate, JPA, JavaFX, JacpFX. โ€ข Hands on experience with DevOps, Shell Script, Docker, Docker Compose, Jenkins, AKS, Azure โ€ข Hands on experience in NodeJS, Angular, Angular 2-rc3, Ionic Framework. โ€ข Hands on experience in ReactJs and Redux Frameworks. โ€ข Hands on experience in MySQL, Postgres, Oracle, MongoDB, ArangoDB, SQL Server. โ€ข Hands on experience in Apache, Weblogic, Glassfish, JBoss/Wildfly and Tomcat web servers. โ€ข Hands on experience in Ejabberd, Openfire and Prosody XMPP Chat servers. โ€ข Hands on experience in WebRTC. โ€ข Knowledge of Eclipse, Intellij Idea, WebStorm tool for the development of java projects & Node/Angular. โ€ข Knowledge of Adobe DW, Aptana studio tool, PHPStorm for the development of PHP projects. โ€ข Knowledge of Business Process Management Tool jBPM5.3. Let me know about your goals and I will lead your project to success! ;)
    Featured Skill J2EE
    Spring MVC
    Kotlin
    Java
    Hibernate
    Spring Security
    jQuery
    Apache Struts
    Spring Framework
    PostgreSQL
    Spring Boot
    JavaScript
  • $35 hourly
    • 5.0/5
    • (52 jobs)
    โœ… JAVA โœ… Spring โœ… Thymeleaf โœ… Rest API I am a solutions provider, share with me your requirements and I will give you a complete solution, front-end to back-end. I'll take care of the whole building process. You just sit, drink a beer and enjoy your app I have experience working as a developer, team leader, and project manager. As a developer I make modular, clean, object-oriented and well-commented code, always aiming quality and intelligence in the solutions. My solutions are complete, front-end to back-end. I have experience with: java, swing, J2EE mobile development (android - java native) spring boot, spring MVC, spring roo,spring-security, spring data, thymeleaf ... HTML, CSS,javascript,angular SQL databases like MySQL, PGSQL, SQL server and ORACLE NoSQL databases like MongoDB, Cassandra JPA, hibernate elasticsearch, kibana, Redis maven, Gradle, GIT, Jira, Jenkins, docker, kubernetes ๐ŸŒŸ WHY CHOOSE ME OVER OTHER FREELANCERS? ๐ŸŒŸ โœ… Client Reviews: I focus on providing VALUE to all of my Clients and Earning their TRUST. The Client Reviews and Feedback on my Profile are immensely important to me and the value that I provide. โœ… Over-Delivering: This is core to my work as a Freelancer. My focus is on GIVING more than what I expect to RECEIVE. I take pride in leaving all of my Clients saying "WOW" โœ… Responsiveness: Being extremely responsive and keeping all lines of communication readily open with my Clients. โœ… Resilience: Reach out to any of my Current of Former Clients and ask them about my Resilience. Any issue that my Clients face, I attack them and find a SOLUTION. โœ… Kindness: One of the biggest aspects of my life that I implement in every facet of my life. Treating everyone with respect, understanding all situations, and genuinely wanting to IMPROVE my Client's situations. I am eager to work with you, to provide reliable, consistent, and High-Level solutions to design/development challenges. Please contact me, so we can discuss how we can work together to FULLY meet your Business Needs!
    Featured Skill J2EE
    MySQL Programming
    Container
    Application Security
    HTML
    CSS
    Amazon Web Services
    Docker
    Kubernetes
    Spring Data
    RESTful API
    API Integration
    Hibernate
    Spring Boot
    Java
    Java Persistence API
  • $35 hourly
    • 5.0/5
    • (51 jobs)
    Full-stack developer specializing in Java for robust backend systems and Flutter for sleek, cross-platform frontends. Java Enterprise Development. 13 years of hands-on experience building robust Java enterprise applications, specializing in custom development for open-source ERP systems. Strong expertise in business process automation and enterprise data modeling. Flutter Development. 5 years of experience creating high-performance cross-platform applications with Flutter, covering mobile, web, and desktop platforms. Proven ability to develop complex solutions, including networking, video streaming, marketplaces, and social applications. Backend Expertise. Capable of designing and integrating backend solutions, whether leveraging cloud services like Firebase and AWS or implementing custom Java-based architectures. Experienced in implementing and automating testing processes, including unit testing and integration testing, to ensure software reliability and maintainability. With a deep understanding of software development and a passion for creating scalable, efficient applications, I bring a results-driven approach to every project.
    Featured Skill J2EE
    Apache OFBiz
    Spring Framework
    Flutter
    Firebase
    Dart
    Android App Development
    Kotlin
    Java
    Push Notifications
  • $40 hourly
    • 5.0/5
    • (22 jobs)
    ๐Ÿ† ๐—จ๐—ฃ๐—ช๐—ข๐—ฅ๐—ž ๐—˜๐—ซ๐—ฃ๐—˜๐—ฅ๐—ง ๐—ฉ๐—˜๐—ง๐—ง๐—˜๐—— ๐—™๐—ฅ๐—˜๐—˜๐—Ÿ๐—”๐—ก๐—–๐—˜๐—ฅ ๐Ÿ’ช ๐—”๐—บ๐—ผ๐—ป๐—ด ๐˜๐—ต๐—ฒ ๐—ง๐—ผ๐—ฝ ๐Ÿญ% ๐—ฝ๐—ฒ๐—ฟ๐—ณ๐—ผ๐—ฟ๐—บ๐—ฒ๐—ฟ ๐—ผ๐—ป ๐—จ๐—ฝ๐˜„๐—ผ๐—ฟ๐—ธ ๐ŸŽ–๏ธ ๐—ง๐—ข๐—ฃ ๐—ฅ๐—”๐—ง๐—˜๐—— ๐—ฃ๐—Ÿ๐—จ๐—ฆ ๐˜„๐—ถ๐˜๐—ต ๐—ผ๐˜ƒ๐—ฒ๐—ฟ ๐Ÿญ๐Ÿฑ๐Ÿฌ๐Ÿฌ๐Ÿฌ ๐—›๐—ผ๐˜‚๐—ฟ๐˜€ ๐—ผ๐—ณ ๐˜„๐—ผ๐—ฟ๐—ธ ๐—ฒ๐˜…๐—ฝ๐—ฒ๐—ฟ๐—ถ๐—ฒ๐—ป๐—ฐ๐—ฒ ๐—ผ๐—ป ๐—จ๐—ฝ๐˜„๐—ผ๐—ฟ๐—ธ ๐Ÿ‘๐Ÿญ๐Ÿฌ๐Ÿฌ% ๐—๐—ผ๐—ฏ ๐—ฆ๐˜‚๐—ฐ๐—ฐ๐—ฒ๐˜€๐˜€ โœ”๏ธŽ ๐— ๐—ผ๐—ฟ๐—ฒ ๐˜๐—ต๐—ฎ๐—ป ๐Ÿฎ๐Ÿฌ ๐˜†๐—ฒ๐—ฎ๐—ฟ๐˜€ ๐—ฒ๐˜…๐—ฝ๐—ฒ๐—ฟ๐—ถ๐—ฒ๐—ป๐—ฐ๐—ฒ ๐˜„๐—ผ๐—ฟ๐—ธ๐—ถ๐—ป๐—ด ๐˜„๐—ถ๐˜๐—ต ๐—ฑ๐—ถ๐—ณ๐—ณ๐—ฒ๐—ฟ๐—ฒ๐—ป๐˜ ๐—ฆ๐—ผ๐—ณ๐˜๐˜„๐—ฎ๐—ฟ๐—ฒ ๐—ฎ๐—ป๐—ฑ ๐—›๐—ฎ๐—ฟ๐—ฑ๐˜„๐—ฎ๐—ฟ๐—ฒ ๐—ฝ๐—ฟ๐—ผ๐—ท๐—ฒ๐—ฐ๐˜๐˜€. Greetings! I am a seasoned Senior Full Stack Engineer with over 20 years of extensive experience in software and solutions development. My forte lies in designing and developing intelligent and adaptive applications across various domains, including desktop, web, mobile, embedded systems, and IoT. Key Skills and Expertise: โœ… Embedded Systems Development: Extensive firmware development for microcontrollers like ARM, STM32, ESP32, PIC, Arduino, Raspberry PI, and more. Specialized in Secure Embedded Applications with ARM Trustzone, Infineon's Optiga Trust M, and STM32 ST-SAFE. Expertise in hardware protocols (UART, SPI, I2C, USB, Bluetooth, LoRa, WiFi, Zigbee). In-depth knowledge of TLS (mbedTLS) and PKI systems. โœ… IoT Application Development: Design and development of Internet of Things (IoT) applications with technologies like LoRa, 4G NB-IOT, Cellular, Bluetooth LE and ZigBee. Experience with AWS IOT, MQTT/S, HTTP/S messaging system Experienced in motor control applications, including full-bridge and PWM for robotics. โœ… Web Applications Development: Proficient in J2EE, PHP for web applications and REST API development. Backend expertise in Java, PHP, and technologies like J2EE, JSF, JSP, Servlets, Primefaces. Frontend proficiency in Bootstrap, ReactJS, jQuery, JavaScript, HTML, CSS. Database mastery in MySQL and Derby. โœ… Image Processing/Digital Signal Processing: Creation of signal processing modules for images and digital signals. Implementation of algorithms for image pre-processing, especially for OCR applications. โœ… Artificial Intelligence: Integration of machine learning algorithms to develop innovative solutions. โœ… Web Automation and Crawlers: Development of web automations for data scraping and process automation. โœ… Cloud Services: Proficient in Amazon Web Services (EC2, S3, RDS). โœ… Application Security: Experience in reviewing application security with Veracode static and dynamic scan tools. Programming Languages: Java (J2SE, J2EE, JSF, JDBC, JPA, Hibernate), C/C++(QT, Embedded C), Matlab, PHP (CakePHP, Wordpress), JavaScript (Node.JS, React), Python If you're seeking a dedicated professional to transform your concepts into functional solutions within a set timeframe, let's connect! I am ready to bring my wealth of experience to your projects.
    Featured Skill J2EE
    Java
    Machine Learning
    OCR Algorithm
    Firmware Programming
    Bluetooth LE
    Computer Vision
    Python
    C++
    JavaScript
    Embedded C
    Embedded System
    Real-Time Operating System
    Firmware
    C
  • $50 hourly
    • 4.3/5
    • (68 jobs)
    I am the Founder & CTO of IOanyT Innovations which is a software development company formed in 2016 and currently employs more than 50 developers. I have over 22 years of experience with organizations like Hewitt, Xerox & Cognizant. Highly accomplished, innovative and results-oriented technology executive with ~22 years of experience in building complex software applications/systems, technology infrastructure and technology businesses to drive revenue growth, expand customer base and increase profitability. Proven track record in implementing technology solutions for a variety of businesses including HRO, Legal, Workforce Management, Call center, Telematics, IoT, Insurance, Transportation, Warehouse and Manufacturing. Built multiple enterprise products with highly scalable architecture and technologies and have successfully executed several projects Globally. My expertise focuses on strategic planning, Innovations, building and extending large software systems and infrastructure, team management, technical architecture, design, product management, program management and project management for high availability, high volume transactional systems, websites and online and mobile applications. Our offerings: - Software Development (Web and Mobile) ----- Java ----- Python ----- NodeJS ----- Angular ----- React - All things AWS and GCP - Security - Advanced Network - Server-less Architecture and development - Cloud migrations - Cloud architecture - Cloud cost optimization - Compliance: HIPAA/SOC2 - IaaS/PaaS/SaaS - Disaster Recovery - Storage solutions - Databases - IoT - AWS IoT Core - Apache Airflow Certifications: - AWS TCO and Cloud Economics - AWS Technical Professional - AWS Business Professional - AWS Certified Solutions Architect - Associate - AWS Certified Solutions Architect โ€“ Professional - AWS Certified Advanced Networking - Specialty
    Featured Skill J2EE
    Machine Learning
    Artificial Intelligence
    Network Security
    React
    Google Cloud Platform
    Web Application
    AWS Glue
    API Development
    Node.js
    Cloud Architecture
    Amazon Web Services
    Internet of Things Solutions Design
    AngularJS
    Python
  • $25 hourly
    • 4.8/5
    • (185 jobs)
    Over 20 years of experience in planning, developing and implementing various information technology and CRM solutions across Institutions. ๏ƒ˜ Salesforce Certified Administrator. โ€ขOver 5 years of implementing customized CRM solutions to various clients like Verizon, Allianz Re-Insurance . โ€ขAutomated Service, Sales and marketing processes using Salesforce Lightning flows and APEX/Visualforce โ€ข Implemented core Salesforce modules like Sales, Service, Financial, Health cloud for small businesses using Agile/Scrum methodologies โ€ข Integrated Salesforce with apps like Zoom, RingCentral, Box, Gmail using Zapier โ€ข Utilized Webservices/REST API to integrate Salesforce with third party applications. โ€ข Implemented Web to Lead, Web to Case and Email to Case channels. โ€ข Created OMNI Channel and Web Chat for customer service. โ€ข Built reports and dashboards to measure kpis. โ€ข Imported data into Salesforce using tools like DataLoader and workbench. โ€ข Implemented and created the full life cycle process for large-scale software development โ€ข Identified architectural improvements resulting in increased product reliability and responsiveness to new feature requests โ€ข Utilizing strong functional knowledge to drive product design โ€ข MS (Computer Science) , University of South Carolina, Columbia ๏ƒ˜ Salesforce Certified Administrator ๏ƒ˜ Sun Certified Programmer for Java 2 Platform ๏ƒ˜ Sun Certified Web Component Developer for Java 2 Platform ๏ƒ˜ Sun Certified Business Component Developer for Java 2 Platform ๏ƒ˜ Project management for IT Profession TECHNICAL SKILLS โ€ข Java, J2EE, Java Servlets, JSP, JNDI, JFCs, EJBโ€™s, Java Script, AJAX, Web services โ€ข Spring Webflow 2.5, STRUTS, Google Web Tool Kit, XML, XSL, ASP, .NET, Shell Scripts, JUnit โ€ข WebSphere 8.5, Tomcat, Web Logic 6.0, IIS, Silver Stream App Server, JRun, JWS โ€ข RAD 7.5, Eclipse, Visual Studio, JDeveloper, CVS, Clear Case, Stash, UML, Rational Rose โ€ข Oracle 11g, D2000, IBM DB2, MYSQL, MS SQL SERVER, MS ACCESS, Toad โ€ข Windows XP, IBM AIX and Unix (SUN SOLARIS 5.7), Silver Stream e-portal 2.2 โ€ข JIRA, Confluence, Cloud Services (PaaS), SalesForce Administration, APEX, Visualforce
    Featured Skill J2EE
    IBM Db2
    Apache Struts
    Spring Framework
    XSL
    XML
    Salesforce Lightning
    Core Java
    Jakarta Server Pages
  • $75 hourly
    • 4.9/5
    • (68 jobs)
    14+ years of experience in Salesforce Implementation and customization. Technically I have sound experience in configuration features like Data Modeling, Security, Flows, Approvals, Apex, LWC, AURA, Lightning Record Pages, Profiles, Reports and Dashboards etc. I have implemented Document Generation and E-Signature in many projects using apps like Conga, Nintext, DocuSign, EcoSign, HelloSign, S-Docs, PDF Butler, Sign Butler. โžค Expertise in Salesforce Products โœ… Sales Cloud โœ… Service Cloud โœ… Community Cloud โœ… Marketing Cloud โœ… Slack โœ… Field Service Lightning โœ… Salesforce Integration โžค Technical Expertise โœ… Salesforce Development & Customization โœ… Salesforce Implementation/Integration โœ… Apex, AURA, LWC, VisualForce Development (VF Pages) โœ… Apex trigger, Apex Scheduler, Apex Batch, Queueable โœ… REST and SOAP API โœ… Salesforce Integration โœ… Force.Com Development & Integration โœ… Aura Component ( Lightning Components ) โœ… Lightning Web Component (LWC) โœ… Workflow | Approval Process | | Lightning Flows โœ… Partner Portals โœ… Slack Integration โœ… Appexchange App Development and Listing โžค Salesforce Certifications โœ… Salesforce Certified Platform App Builder โœ… Salesforce Platform Developer 1 โœ… salesforce administrator โœ… Salesforce Sales Cloud Consultant โœ… Salesforce Service Cloud Consultant โœ… Salesforce Experience Cloud Consultant โœ… Salesforce Field Service Lightning Consultant โœ… Salesforce Data Architect โœ… Salesforce Application Architect โœ… Salesforce Sharing and Visibility Designer โœ… Integration Architect โœ… Development Lifecycle & Deployment Architect Salesforce Architect | Salesforce Consultant | Salesforce Developer | Salesforce Administrator
    Featured Skill J2EE
    Salesforce Marketing Cloud
    SOQL
    JavaScript
    Salesforce Lightning
    Visualforce
    jQuery
    SOSL
    Salesforce Service Cloud
    Apex
    Salesforce Sales Cloud
    Salesforce App Development
    Salesforce CRM
    Salesforce
    Java
  • $70 hourly
    • 4.7/5
    • (85 jobs)
    Welcome to Dannenhauer Labs! Github Achievement: Arctic Code Vault Contributor Areas where I have flourished as a programmer include Server Side Architecture with Python, Java, and NodeJS. Automation software such as Auto Checkout Bots, Web Crawlers, and Games with HTML5 Canvas. HTML5, SCSS, and JavaScript. Next to that is my ability to create Pixel Perfect Front End Applications with an emphasis on Mobile First Responsive Design. I have built several front end applications with Vue and React. My skills in Full Stack Web Development make me an excellent fit for any Web Automation (Selenium) or Web Scraping project. Even if the webpage has broken HTML, I can still find a way to reliably scrape/crawl it. Because of my experience in building web applications from the ground up, I know exactly how the data is being sent to/from the server which allows me to creatively find ways to collect that data efficiently. I taught myself Computer Science by downloading free books online and taking free college courses from Coursera, Stanford Engineering Everywhere, and Udacity. The truth is, anybody can get an Ivy League education in computer science and web development for free by using the Internet. What separates me from other developers is that I would rather take on a challenging project and learn something new, rather than do something easy. I am just getting warmed up so take advantage. Cheers, Dylan
    Featured Skill J2EE
    Beautiful Soup
    Selenium WebDriver
    MySQL Programming
    AngularJS
    CSS 3
    Node.js
    HTML5
    Java
    JavaScript
    Python
    PHP
  • $40 hourly
    • 5.0/5
    • (86 jobs)
    **UPWORK Skill Certified, EXPERT VETTED BY UPWORK and among Top 1% talent on Upwork** I am a full-time freelance IT consultant with over 14 years of rich and diverse experience in developing applications using Java, J2EE, Spring, JPA, Hibernate, React, Angular, TypeScript. I provide solutions to clients across various domains, specializing in the following areas: โ€ข Full stack web application development โ€ข Enterprise applications development โ€ข Backend web services development โ€ข Desktop application development โ€ข Cloud infrastructure development BACKEND DEVELOPMENT - I have developed the backends for over 100 applications to date, gaining extensive experience with Event-Driven Architecture, Microservices Architecture, and Backend Web Services development. Additionally, I have a strong hands-on expertise in TDD and BDD approach of software development, which I rely on heavily to ensure high-quality and maintainable code. FRONT-END DEVELOPMENT - At the front-end, my expertise lies in working with โ€“ โ€ข JSP โ€ข JSF โ€ข Vaadin โ€ข JavaScript โ€ข HTML5 โ€ข CSS โ€ข Ajax โ€ข Bootstrap DESKTOP APPLICATION DEVELOPMENT - I have strong knowledge and experience in developing Desktop applications using Java Swing and JavaFX & also experience in developing applications for Mac, Windows as well as Linux. CLOUD INFRASTRUCTURE DEVELOPMENT - โ€ข 9x AWS Certified and "Microsoft Certified" Azure Solutions Architect Expert. โ€ข Extensive experience with using Docker, Kubernetes, Terraform. โ€ข Dockerisation and Orchestration, automating CI/CD Pipelines, VPN Setup, Monitoring and Logging, Cloud Cost Optimisation are my Forte. โ€ข Active user of AWS and Azure and excellent in picking cost-effective and secure solutions using these platforms. OTHER PROFICIENCIES - Skilled in both SQL and NoSQL programming, with extensive experience in: โ€ข Relational Databases - MySQL, Postgres, MS SQL Server, Oracle and DB2. โ€ข Non-Relational databases - MongoDB, DynamoDB โ€ข Skilled with ElasticSearch and Redis for efficient data storage and retrieva SOFT SKILLS โ€“ โ€ข Individualistic personality โ€“ who likes to find solutions. โ€ข Strong work ethic - my past work can vouch for this. โ€ข Positive attitude- comes in handy, while solving complex problems. โ€ข Excellent command over English language. โ€ข Excellent Communication skills. โ€ข Believes in Team work and joint efforts - can mingle into your current team easily. โ€ข Leadership skills - can lead and take up responsibility, even in difficult situations. โ€ข Highly dedicated personality - I donโ€™t get bogged down by hiccups, and work to sail my way through them. My technical expertise, strong work ethics, and proven track record of delivering value are reflected in the positive reviews and feedback from my clients. So letโ€™s work together to unlock the full potential of your project. Thanks & Cheers!
    Featured Skill J2EE
    Cloud Computing
    CI/CD
    SQL Programming
    DevOps
    Microsoft Azure
    Amazon Web Services
    RabbitMQ
    Hibernate
    Microservice
    RESTful API
    Spring Security
    Spring Boot
    Spring Framework
    Java
  • $35 hourly
    • 4.8/5
    • (46 jobs)
    ๐ŸŒŸ ๐“๐จ๐ฉ-๐‘๐š๐ญ๐ž๐ ๐…๐ฎ๐ฅ๐ฅ-๐’๐ญ๐š๐œ๐ค ๐–๐ž๐›, ๐Œ๐จ๐›๐ข๐ฅ๐ž & ๐’๐จ๐Ÿ๐ญ๐ฐ๐š๐ซ๐ž ๐ƒ๐ž๐ฏ๐ž๐ฅ๐จ๐ฉ๐ž๐ซ ๐ŸŒŸ ๐Ÿ† ๐Ÿ๐ŸŽ๐ŸŽ% ๐‰๐จ๐› ๐’๐ฎ๐œ๐œ๐ž๐ฌ๐ฌ โฑ ๐Ÿ๐Ÿ‘,๐ŸŽ๐ŸŽ๐ŸŽ+ ๐ก๐จ๐ฎ๐ซ๐ฌ | ๐Ÿ๐ŸŽ๐ŸŽ+ ๐ฌ๐ฎ๐œ๐œ๐ž๐ฌ๐ฌ๐Ÿ๐ฎ๐ฅ ๐ฉ๐ซ๐จ๐ฃ๐ž๐œ๐ญ๐ฌ! ๐Ÿ’ผ ๐„๐ฑ๐ฉ๐ž๐ซ๐ญ๐ข๐ฌ๐ž ๐ข๐ง ๐‡๐ž๐š๐ฅ๐ญ๐ก๐œ๐š๐ซ๐ž | ๐…๐ข๐ง๐ญ๐ž๐œ๐ก | ๐‚๐‘๐Œ | ๐„๐‘๐ | ๐ˆ๐จ๐“ | ๐‘๐ž๐ญ๐š๐ข๐ฅ | ๐ž๐‚๐จ๐ฆ๐ฆ๐ž๐ซ๐œ๐ž Hello! Iโ€™m Ganesh, a passionate Full-Stack Developer with over 12 years of experience delivering high-performance web & mobile applications. I specialize in large-scale enterprise systems with high availability, leveraging my deep expertise in Python, NodeJS, Java, and microservice architecture. Whether you're building from scratch or looking to scale, I have the skills to bring your project to life from front-end to back-end with AWS deployment. ๐Ÿš€ ๐Œ๐ฒ ๐‚๐จ๐ซ๐ž ๐„๐ฑ๐ฉ๐ž๐ซ๐ญ๐ข๐ฌ๐ž ๐ˆ๐ง๐œ๐ฅ๐ฎ๐๐ž๐ฌ: Web & Mobile Apps: Building scalable, secure, and user-friendly solutions. AWS Infrastructure & API Integration: Setting up and optimizing cloud systems. Microservices & Serverless Development: Enabling seamless and efficient service architecture. ๐Ÿ” ๐ˆ๐ง๐๐ฎ๐ฌ๐ญ๐ซ๐ข๐ž๐ฌ ๐ˆโ€™๐ฏ๐ž ๐–๐จ๐ซ๐ค๐ž๐ ๐ˆ๐ง: Healthcare: Interoperability, Provider & Payer Systems, MedTech, Pharmaceuticals, Healthcare Tech Retail & eCommerce: eCommerce Platforms, POS Systems, Warehouse Management, CRM Platforms Software & Hi-Tech: MVPs, End-to-End Product Engineering, Technology Migration ๐Ÿ’ก ๐’๐จ๐ฆ๐ž ๐…๐ฎ๐ง ๐…๐š๐œ๐ญ๐ฌ ๐€๐›๐จ๐ฎ๐ญ ๐Œ๐ž: I handle entire project lifecycles, from concept to final delivery & support. I excel in budget estimation, team management, and complex software systems. I follow KISS, DRY, and SOLID principles for efficient and scalable code. Math, finance, quantitative analysis, and algorithm design are my side passions! ๐ŸŽฏ ๐“๐ž๐œ๐ก ๐’๐ญ๐š๐œ๐ค ๐„๐ฑ๐ฉ๐ž๐ซ๐ญ๐ข๐ฌ๐ž: โœ” Languages: Python, NodeJS, Java โœ” Frameworks: Django, Flask, DRF, React, Angular, Typescript, NextJS โœ” Databases: MySQL, PostgreSQL, MongoDB, GraphQL, Oracle โœ” AWS: API integration & infrastructure setup โœ” Messaging: Apache Kafka, Spring JMS, ActiveMQ, HornetQ โœ” Others: Elasticsearch, REST APIs ๐Ÿ’ฌ What My Clients Say: โญโญโญโญโญ "Ganesh is an exceptional developerโ€”his communication, design skills, and intelligent thinking make him a joy to work with!" โญโญโญโญโญ "His work in microservices and backend web applications exceeded expectations. Highly recommended!" โญโญโญโญโญ "Ganeshโ€™s dedication and quality are unmatched. Weโ€™re excited to continue working with him." โญโญโญโญโญ "Extremely responsive and knowledgeable, a pleasure to collaborate with!" โญโญโญโญโญ "Outstanding work ethic, commitment, and technical prowessโ€”definitely working with Ganesh again." Feel free to contact me for your next big project! ๐Ÿš€ Letโ€™s bring your ideas to life with top-notch code and innovation. โœจ
    Featured Skill J2EE
    Kotlin
    Software Development
    Website
    Expert
    Healthcare
    Full-Stack Development
    Front-End Development Framework
    Back-End Development
    Back-End Development Framework
    Front-End Development
    Mobile App Development
    Web Development
    Software
    Desktop Application
    Java
  • $28 hourly
    • 4.7/5
    • (50 jobs)
    ๐Ÿ๐Ÿ–๐Š+ ๐‡๐จ๐ฎ๐ซ๐ฌ | $๐Ÿ‘๐ŸŽ๐ŸŽ๐Š+ ๐„๐š๐ซ๐ง๐ž๐ | ๐“๐จ๐ฉ ๐‘๐š๐ญ๐ž๐ ๐๐ฅ๐ฎ๐ฌ ๐Ÿ”น Upwork Top Rated Plus โ€“ Among the top 3% of freelancers on the platform ๐Ÿ”น 11+ Years of Experience in Web & Mobile App Development ๐Ÿ”น 60+ Projects Successfully Delivered Hi, I'm Mohit Mali, a highly experienced Java and Mobile App Developer with deep expertise in Java, Android, Kotlin, iOS, Spring Boot, and OpenAI integrations. Over the past decade, Iโ€™ve designed and developed scalable, high-performance applications with a strong focus on delivering seamless user experiences and robust back-end logic. My development philosophy is centered on writing clean, maintainable code and building solutions that are both technically sound and aesthetically refined. ๐Ÿ’ผ Services Offered: ๐Ÿ“ฑ Android & iOS Mobile App Development (Java, Kotlin, Swift) ๐ŸŒ Web Application Development (Spring Boot, REST APIs) ๐Ÿง  AI Integration (OpenAI, ChatGPT APIs) ๐Ÿ”— API Development & 3rd-Party Integrations ๐Ÿ›’ eCommerce Development ๐Ÿงฐ CRM & Custom Business Software ๐ŸŽฏ Frontend & Backend Architecture ๐Ÿ“ˆ Technical Consulting & Project Analysis ๐Ÿงช App Optimization, Testing & Debugging ๐Ÿ’ก Why Work With Me? โœ”๏ธ 100% Success Rate across all Upwork projects โœ”๏ธ 40+ Hours/Week Availability with flexible scheduling โœ”๏ธ Rapid Response Time โœ”๏ธ Reliable Communication, Transparency & Professional Ethics โœ”๏ธ Client-Centric Approach focused on long-term value Whether you're looking to build a high-performance mobile app, integrate AI into your system, or launch your next web platform, I bring the experience, reliability, and innovation to help bring your vision to life. Letโ€™s collaborate and turn your ideas into reality.
    Featured Skill J2EE
    Asana
    DevOps
    Azure DevOps
    AI Development
    Jira
    Serverless Stack
    Internet of Things
    AWS Lambda
    Blockchain Development
    Technical Project Management
    Docker
    GitHub
    Mobile App Development
    Android App Development
    Java
  • $20 hourly
    • 4.3/5
    • (23 jobs)
    ๐Ÿ’Ž ๐—ง๐—ข๐—ฃ-๐—ฅ๐—”๐—ง๐—˜๐—— ๐—ฃ๐—Ÿ๐—จ๐—ฆ !!!. 12+ years of proven Experience. Expert in Spring , Spring Boot, MEAN and MERN Development. Specialized in both Java and JavaScript including Modern Frameworks 20+ projects & 3.5k+ ๐—›๐—ผ๐˜‚๐—ฟ๐˜€ on Upwork Hello and welcome! Are you seeking an exceptionally skilled developer with over a decade of experience to elevate your project to new heights? Your search ends here! With a proven track record in Business Application Development, I possess the capabilities to deliver exceptional outcomes. My expertise spans a wide spectrum, encompassing full-stack development, front-end design, and cloud infrastructure optimization. I bring a creative, solution-focused approach to every project, ensuring your objectives are not just met but exceeded. In Java development, I excel in Spring/Spring Boot, Netflix OSS & Micro-services Architecture, Distributed Systems, RESTful Architecture, and Application Security. I'm well-versed in frameworks like Spring Security, Hibernate, JPA, Spring Data Mongo, and Struts 2.0. My database modeling proficiency includes MySQL, Postgres, MongoDB, Cassandra, and Redis. On the JavaScript front, I'm an expert in Node.js, React, Next.js, Angular 2+, MEAN, MERN, VITE, and mobile app development with React Native. My skills extend to REST Architecture, AWS, MySQL, MongoDB, and HTML5. When it comes to cloud infrastructure, I have a wide array of services at my disposal, including AWS, GCP, and Azure solutions. What truly sets me apart is my adaptability, self-motivation, and unwavering enthusiasm. I can inspire teams to reach their full potential, bring creative problem-solving to the table, and communicate effectively for successful project delivery. My extensive portfolio showcases a history of high success rate delivery, having completed over 50 successful collaborations across diverse domains. I consistently maintain a professional, knowledgeable, and confident demeanor to ensure your utmost satisfaction. But don't just take my word for it. My track record speaks for itself. If you're ready to take your project to the next level, let's discuss your ideas and explore how I can bring them to life. With my skills and expertise, the possibilities are limitless. Thank you for considering me for your next project. I eagerly anticipate the opportunity to collaborate with you and achieve exceptional results. Let's transform your vision into reality and embark on a prosperous journey together!
    Featured Skill J2EE
    Tailwind UI
    Tailwind CSS
    Next.js
    ExpressJS
    React
    Spring Cloud
    Web Development
    RESTful API
    Spring Boot
    NodeJS Framework
    Amazon Web Services
    MongoDB
    Node.js
    Java
  • $15 hourly
    • 4.9/5
    • (65 jobs)
    A Goal-oriented and hands-on Senior IT professional, with more than 26 years of experience at handling all aspects and phases of software life cycle. I am hands-on - 1. In developing applications in Java / J2EE, Wordpress technologies. Worked on Spring, Struts and hibernate, Webharvest and OfBiz frameworks. 2. Manual testing, database testing and automation testing. The tools I have been using for automation include Selenium WebDriver, Selenium RC and Selenium IDE. 3. Experience in database migration, Web scraping, BOT development. Delivered many complex application successfully. I have strong domain and technology knowledge and experience which helps me in unleashing the possibilities that the cutting edge technology can bring for business. I have been providing development and testing solution and services covering all major modern platforms and technologies
    Featured Skill J2EE
    Unit Testing
    Selenium
    Selenium WebDriver
    Data Scraping
    WordPress
    Java
    Database Testing
    Regression Testing
    Functional Testing
  • $30 hourly
    • 4.4/5
    • (18 jobs)
    7+ years of experience in Salesforce and Java. Top rated Developer by upwork. ---------------------------------------------------------------------------------- I am open to different working models such as onsite, offshore, hourly or short period projects. โ€ข OCJP 7 Certified (Java) โ€ข Salesforce.com Certified Platform Developer I โ€ข Salesforce.com Certified Platform Developer II โ€ข Salesforce.com Certified Administrator (ADM 201). โ€ข Salesforce.com Certified Platform App Builder โ€ข Salesforce.com Certified Advance Administrator (ADM 211). โ€ข Salesforce.com Certified Sales Cloud Consultant. โ€ข Salesforce.com Certified Service Cloud Consultant. Programming Languages Development (Windows/Web) Skills: โœ… JAVA โœ… Salesforce โœ… Linux โœ… Netsuite โœ… node js โœ… Angular JS -------Salesforce------- โ€ข Classic โ€ข Lightning โ€ข Sales Cloud Implementation โ€ข Service Cloud Implementation โ€ข Salesforce Integration โ€ข Appexchange Apps development โ€ข Community Cloud Implementation โ€ข Salesforce Marketing Cloud Implementation โ€ข Visualforce Development โ€ข Trigger โ€ข Setup โ€ข Configuration -------Java------- โ€ข J2EE โ€ข Spring โ€ข Hibernate โ€ข Core Java โ€ข Struts -------Front End------- โ€ข Html โ€ข css โ€ข Bootstrap โ€ข Jqeury โ€ข Java script I have already helped many Clients across all over world based on their business requirements.I would really appreciate if you give me an opportunity to discuss over the call. Your project will be completed on time with 100% quality and accuracy.Thanks for your time and I expect for closer dialogue with you soon.Let's create great things together! It will be exciting! Regards, Tirth Patel
    Featured Skill J2EE
    J2SE
    Apex
    Salesforce CRM
    HTML5
    Hibernate
    JDBC
    JavaScript
    Spring Framework
    Java
  • $25 hourly
    • 4.8/5
    • (37 jobs)
    Our company specializes in providing Customized Web Solutions. We work mainly on PHP & JAVA-J2EE platforms. Our expertise in PHP includes, Frameworks like Laravel, Codeigniter, Cakephp & Open Source Packages like WordPress, Magento. In JAVA-J2EE, we have experts of Spring, Spring Security, Spring Social, Struts2, Hibernate, JPA, Spring Micro-Services, Spring Boot, Spring Data JPA. We have a team of efficient and professional experts in each of the fields of Web Development and thus, each of our team members are dedicated to address and solve clientโ€™s individual needs. We always keep in mind that the services that we provide get proper and effective attention that it deserves. Based on what client prefers, we use JIRA, Asana or Trello as Project Management/Bug Tracking tools. For repository we use Bitbucket, GitHub, GitLab or SVN. We have done projects on IONIC, AngularJS & Bootstrap. Our client base is spread across US, Canada, Europe & Asia. We work 5 days a week, daily 9 hours.
    Featured Skill J2EE
    Web Development
    AngularJS
    MySQL
    Magento
    WordPress
    Hibernate
    Spring MVC
    CodeIgniter
    Java
    Spring Boot
    Laravel
    RESTful Architecture
    Spring Framework
    Business with 1-9 Employees
  • $40 hourly
    • 5.0/5
    • (48 jobs)
    I'm a highly motivated and experienced developer with over 10 years of expertise in Java, Groovy, and Grails. I possess a strong understanding of back-end development principles and a proven track record of delivering robust and scalable applications. Skills & Technologies: Java, Groovy, Javascript, Typescript Grails, Spring Boot, SparkJava RESTful APIs, Google APIs MySQL, PostgreSQL, MongoDB, MariaDB JavaScript, TypeScript, jQuery libraries, Bootstrap, W3CSS Git, GitHub, BitBucket IntelliJ IDEA, Postman JIRA, Asana, Trello AWS, Docker ChatGPT, Gemini, DeepSeek Additional Information: I'm proficient in utilizing various project management tools to ensure efficient collaboration and project delivery. I'm a quick learner and possess excellent problem-solving skills. What I offer: Strong technical expertise in Java, Groovy, and Grails. Ability to design, develop, and deploy back-end applications. Experience with various databases and APIs Familiarity with front-end technologies and cloud platforms Excellent communication and collaboration skills Why Choose Me? Over 10 years of experience in the industry Proven track record of delivering successful projects Dedicated, reliable, and results-oriented
    Featured Skill J2EE
    Apache Groovy
    Grails
    Bitbucket
    Hibernate
    MySQL
    Web Application
    RESTful API
    GitHub
    PostgreSQL
    Java
    Docker
    Git
    MongoDB
  • $10 hourly
    • 5.0/5
    • (8 jobs)
    I am a skilled full stack engineer proficient in web, mobile, and API development. I excel at analyzing and developing projects of any scale, from small applications to large-scale systems. With a strong understanding of market trends and cutting-edge technologies, I deliver high-quality, standard-compliant solutions tailored to your needs. Expertise are in MERN, NODEJS, REACT, ANGULAR , NEXT JS, REACT NATIVE, JAVA, ANDROID, IOS, SPRING BOOT, SPRING.
    Featured Skill J2EE
    Next.js
    ExpressJS
    JSON
    NodeJS Framework
    Web Development
    Node.js
    React
    Android
    React Native
    Spring Framework
    AngularJS
    Java
  • $15 hourly
    • 4.7/5
    • (52 jobs)
    Over the last 14 years, I have almost completed 42 android projects for different businesses and personal use of my clients. Great experience in Java, Kotlin , Jetpack Compose, Dagger HILT and other architectural component, View Based Systems, Android SDK, Google's Android related service and Android Studio. I always welcome new ideas and love to convert them in smart android application. During different applications development period I have gone through many different challenges and finish all of them with my smart work. I have been work in all below area and also willing to explore more with new things. Material Design with backward compatibility, Jetpack Compose, Navigation Component, Dagger HILT, Paging 2 and Paging 3, SQL/SQLite databases, JSON Bese data parsing, RestFull Web service integration, Room, Audio/Video Streaming, ExoPlayer, Face Recognition and OCR, Social Network - Facebook, Twitter integration, Google Map and other Google services, Other open source library integration and modification according to requirement. I am familiar with MVVM,MVC and Clean architecture pattern. I have developed some of my apps with MVVM + CLEAN architecture, including all layers, such as Presentation, Data and Domain. I have hands on experience in Kotlin Flow, LiveData and Coroutine. I am cost effective but quality work provider.
    Featured Skill J2EE
    JetPack
    Face Detection
    Android Room Persistence
    Core Java
    SQLite
    Firebase
    QR & Barcode Scanner
    Kotlin
    Mobile App Development
    API Integration
    Application Security
    Android App Development
    User Authentication
    In-App Purchases
  • $30 hourly
    • 4.8/5
    • (387 jobs)
    Specialties: SMS,SMS Gateways,Kannel,Jasmin,Bulk SMS Software,SMS Lead Generation Software, Fortumo, Twilio, Plivo,Clickatell, SMPP 3.4 , HTTP REST API,AT Commands, GSM Modules,telecommunication,VOIP,SIP,IVR. Languages: English(Fluent), French(Fluent), Arabic (Fluent) Programming Skills: PHP 5&7, PL/SQL, shell Scripting, Perl Scripting, Java, Oracle/Mysql,Oracle Forms, Oracle Reports, Solaris/Linux Unix, Application Servers, Web services, advanced XML technologies, SOA patterns.
    Featured Skill J2EE
    SQL
    Apache Tomcat
    CentOS
    XML
    SMS Gateway
    Oracle WebLogic Server
    Microsoft Excel
    PHP
    C#
    MySQL
    Java
    JavaScript
  • $55 hourly
    • 4.9/5
    • (160 jobs)
    โญโญโญ "Unni did excellent work! Trustworthy and capable. Great communication" โญโญโญ โญโญโญ"Am writing this review to express my deep gratitude and appreciation for Unni's remarkable contribution to our project. Unni has demonstrated an exceptional ability in managing a complex integration task, a challenge that had previously stymied the efforts of five other individuals". โญโญโญ โญ I am senior developer specializing in Back-End and Cloud development. ๐Ÿ‘‘ 24 years of professional application development experience โœ… 150 โž• Jobs โœ… 150 โž• Reviews โœ… 3000 โž•Hours I have worked with โญHigh Profile clientsโญ in my Career which I have listed some of them below: โœ… FirstTennessee (Fortune 500) โœ… Amex (Fortune 500) โœ… EDB Norway โœ… ICICI Bank My core expertise and experience are: โœ… Android Application development โœ… Web development using Java 8, Spring Boot framework, JavaScript, HTML 5 โœ… Back end development with Java 8, Spring Boot frame work โœ… REST API development using Spring Boot โœ… Desktop development using Swing and JavaFX โœ… Micro services with Spring Boot โœ… Experience in Graph algorithms โœ… Bitcoin and Block chain development using Bitcoinj frame work โœ… Eclipse RCP development โœ… Open source application modification and development โœ… ChatGPT โœ… Java - 12+ years โœ… Java 8 - 5 years โœ… JavaScript - 5+ years โœ… Spring Boot - 3 + years โœ… Spring Framework - 3 + years โœ… React โœ… GraphQL โœ… AWS โœ… AWS Lambda โœ… Cloud Development โœ… AWS Amplify โœ… Aws AppSync โœ… DynamoDB โœ… Quarkus framework โœ… Micronaut โœ… CI/CD โœ… Android - 2 + years โœ… Spring Security - 2+ years โœ… WebRTC , WebSocket - 2+ years โœ… Python - 1+ year โœ… Node.js - 1 + year โœ… Play Frame work - 1 year โœ… GIS Development - 1 year I would like to go the extra mile to meet customer expectations for every project I am doing with 100% quality. I am looking for long-term association with clients to get complete benefits and am interested in achieving their business objectives and goals.
    Featured Skill J2EE
    Apache Kafka
    API Development
    Micronaut
    Spring Security
    Spring Boot
    Core Java
    Apache Maven
    Spring Framework
    GraphQL
    Android
    Android App Development
    Python
    Firebase
    Java
    JavaScript
  • $60 hourly
    • 5.0/5
    • (7 jobs)
    Experienced backend Java developer with over a decade of expertise in developing and maintaining high-quality software solutions. My career includes roles at Accenture, Credit Suisse and GFT Group. Based in Poland, I have also worked in London with Luxoft and Unibet, a leading company in the gambling industry. Top-rated Upwork freelancer, ranked in the top 5% of performers with a 100% Job Success Score. Proficient in Java, Spring Boot, REST APIs, and cloud technologies (AWS). Adept at working with distributed international teams, emphasizing clean code practices and delivering challenging projects. Programming Languages: Java, JavaScript, Scala APIs & Integrations: RESTful APIs, GraphQL, WebSocket, RabbitMQ, JMS, Kafka Cloud & DevOps: AWS (Cloudformation), Docker, CI/CD (Jenkins, GitHub Actions) Frameworks & Tools: Spring Framework, Spring Boot, Hibernate, JPA Version Control: Git, GitLab, Bitbucket Databases: MySQL, PostgreSQL, MongoDB, Redis Testing: JUnit, Mockito, Cucumber, TDD Others: Observability, Keycloak, Angular, Maven, Bash
    Featured Skill J2EE
    CI/CD
    Amazon Web Services
    Spring MVC
    Java Persistence API
    Hibernate
    API
    Spring Boot
    RESTful API
    SQL
    Docker
    Web Application
    AngularJS
    Java
    MySQL
    Spring Framework
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At A Glance: J2EE

Developing powerful and dynamic programs and software is a vital aspect of any modern business. Implementing enterprise, networking, and web service software gives businesses an edge when navigating the highly data-driven and interactive business landscape. Java Enterprise Edition is a powerful computing platform for developing enterprise software to help you and your business manage and distribute all aspects of enterprise computations. Java Enterprise Edition provides API platforms for web services, multi-tier architectures, and object-related programming, as well as other powerful and efficient software development tools. Working with Java Enterprise Edition developers and programmers found on Upwork can provide valuable tools and opportunities for you or your organization to take advantage of, thereby creating a dynamic and flexible workspace.

J2EE developers and programmers are highly-skilled computer programmers with experience in the Java scripting language as well as the J2EE development platform. Working with a J2EE developer allows your organization and company to leverage the power of J2EE applications and software solutions that you already have implemented by making applications more efficient and manageable. Programmers can work independently or with a team within your organization to create and develop applications and frameworks your company needs to stay competitive in the highly interactive and data-driven business world. Hiring a freelance J2EE developer or programmer on Upwork gives you and your business access to a highly skilled, flexible pool of talent that is capable of producing a wide variety of solutions and applications that can become the driving force for meeting any enterprising business needs.

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