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  • $50 hourly
    • 5.0/5
    • (71 jobs)
    I am a founder of FlexSolution company with a demonstrated history of working in the software development industry. Certified Alfresco and Vaadin 24 Engineer! Skilled in Liferay, Kafka, Java, Javascript, CAS, LDAP, Maven, Hibernate, Spring Framework, Docker, Kubernetes, GIT and so on. Graduated from the Kharkiv National University of Radioelectronics.
    Featured Skill ZK
    Business Process Model & Notation
    Vaadin
    Hibernate
    Node.js
    NestJS
    React
    Spring Framework
    SQL
    D3.js
    ExpressJS
    Redux
    React Native
    Java
    JavaScript
  • $40 hourly
    • 5.0/5
    • (8 jobs)
    Researching, designing, implementing and managing software programs. Testing and evaluating new programs. Identifying areas for modification in existing programs and subsequently developing these modifications. Writing and implementing efficient code.
    Featured Skill ZK
    Spring Cloud
    Web Design
    Spring Boot
    Java Servlet API
    Spring Framework
    Vaadin
    Spring MVC
    Jakarta Server Pages
    Java
    CSS
    CSS 3
    HTML5
    HTML
    Spring Data
    Spring Security
  • $60 hourly
    • 5.0/5
    • (17 jobs)
    More than 10 years of professional experience in software development. Certified AWS Solution Architect, Certified JAVA Professional(OCA & OCP) Certified Expert(OCE) in EJB. Professional experience in JAVA/J2EE, JPA, Spring Framework, ZK, JSP/Servlet, Mysql, Oracle, Rest API, Weblogic, JBOSS, Tomcat, Jasper Report etc. 6 years of working experience in Financial And Banking Domain.
    Featured Skill ZK
    CSS
    API
    JUnit
    Spring Boot
    Hibernate
    ZK Framework
    JasperReports
    EJB
    Java Persistence API
    Spring Framework
    Java
  • $35 hourly
    • 5.0/5
    • (20 jobs)
    I am a Software Developer with around ten years of experience in Java, developing both the back-end and front-end of multiple software solutions. I have experience with each layer of development, from creating database structures and stored procedures to designing and developing the user interface of the applications. My knowledge and experience includes: - Programming languages: Java, PHP, C#, Python. - Frontend frameworks/ technologies: ZK, Vaadin, JSP, HTML5, Jquery, Javascript, AngularJS, AJAX. - Backend frameworks: Spring, Spring Security, Spring Batch, JSF, Hibernate, Mybatis. - Versioning Control: Git, SVN. - Databases: Oracle, MySQL, SQLite, SQL Server, Oracle Database, PostgreSQL - SOAP and REST web services - Tools: Maven, Ivy, JasperReports I'm always motivated with the idea of new challenges and learning new technologies. I'm willing to make the best effort to do an excellent job, even if it takes extra work researching the way to solve a problem. I have several years working on financial institutions, so I have experience working under pressure, meeting really strict deadlines and communicating with the users to evaluate options and generating solutions for their needs. I'm used to work as a team member as well as independently, following instructions or coming up with the solutions that best suites the needs of the business.
    Featured Skill ZK
    Tableau
    ZK Framework
    API Integration
    API
    Database Architecture
    Spring Boot
    RESTful Architecture
    Database Design
    Web Application
    Vaadin
    MySQL
    Java
    Spring Framework
    iBATIS
    RESTful API
  • $30 hourly
    • 4.8/5
    • (39 jobs)
    Hello! Iโ€™m an experienced ๐—™๐˜‚๐—น๐—น ๐—ฆ๐˜๐—ฎ๐—ฐ๐—ธ ๐——๐—ฒ๐˜ƒ๐—ฒ๐—น๐—ผ๐—ฝ๐—ฒ๐—ฟ with over ๐Ÿณ,๐Ÿฌ๐Ÿฌ๐Ÿฌ+ ๐—ต๐—ผ๐˜‚๐—ฟ๐˜€ of development time across various projects. I specialize in ๐—๐—ฎ๐˜ƒ๐—ฎ, Microservices, and ๐—–๐—น๐—ผ๐˜‚๐—ฑ ๐—ฆ๐—ผ๐—น๐˜‚๐˜๐—ถ๐—ผ๐—ป๐˜€, delivering robust and scalable applications. Whether it's back-end systems or dynamic front-end interfaces, I ensure high-quality solutions that focus on security, performance, and reliability. ๐—ฆ๐—ธ๐—ถ๐—น๐—น๐˜€ & ๐—˜๐˜…๐—ฝ๐—ฒ๐—ฟ๐˜๐—ถ๐˜€๐—ฒ: - ๐Ÿ”ง ๐—•๐—ฎ๐—ฐ๐—ธ-๐—˜๐—ป๐—ฑ:: Java, Spring Boot, Hibernate, JPA, Microservices - ๐Ÿ’ป ๐—™๐—ฟ๐—ผ๐—ป๐˜-๐—˜๐—ป๐—ฑ: Angular, React, JavaScript, JQuery - โ˜๏ธ ๐—–๐—น๐—ผ๐˜‚๐—ฑ: AWS, Google Cloud, Digital Ocean - ๐Ÿ’พ ๐——๐—ฎ๐˜๐—ฎ๐—ฏ๐—ฎ๐˜€๐—ฒ๐˜€: MySQL, PostgreSQL, MongoDB, Oracle - ๐Ÿ” ๐—ฆ๐—ฒ๐—ฐ๐˜‚๐—ฟ๐—ถ๐˜๐˜†: OAuth2, JWT, OpenID, LDAP, X.509 - ๐Ÿš€ ๐——๐—ฒ๐˜ƒ๐—ข๐—ฝ๐˜€ & ๐—–๐—œ/๐—–๐——: Jenkins, GitLab, Kubernetes, Docker - ๐Ÿ“ ๐—”๐—ด๐—ถ๐—น๐—ฒ: Scrum, Kanban, Jira ๐—˜๐˜…๐—ฝ๐—ฒ๐—ฟ๐—ถ๐—ฒ๐—ป๐—ฐ๐—ฒ: With a solid track record of working with ๐—™๐—ผ๐—ฟ๐˜๐˜‚๐—ป๐—ฒ ๐Ÿฑ๐Ÿฌ๐Ÿฌ ๐—ฐ๐—ผ๐—บ๐—ฝ๐—ฎ๐—ป๐—ถ๐—ฒ๐˜€, Iโ€™ve delivered projects in ๐™๐™ž๐™ฃ๐™๐™š๐™˜๐™, ๐˜๐˜ฆ๐˜ข๐˜ญ๐˜ต๐˜ฉ๐˜ค๐˜ข๐˜ณ๐˜ฆ, ๐˜ฆ๐˜Š๐˜ฐ๐˜ฎ๐˜ฎ๐˜ฆ๐˜ณ๐˜ค๐˜ฆ, ๐˜ข๐˜ฏ๐˜ฅ ๐˜›๐˜ฆ๐˜ญ๐˜ฆ๐˜ค๐˜ฐ๐˜ฎ. I handle projects end-to-end, from gathering requirements to final deployment, ensuring seamless delivery. ๐—œ๐—ป๐—ฑ๐˜‚๐˜€๐˜๐—ฟ๐—ถ๐—ฒ๐˜€ ๐—œโ€™๐˜ƒ๐—ฒ ๐—ช๐—ผ๐—ฟ๐—ธ๐—ฒ๐—ฑ ๐—ช๐—ถ๐˜๐—ต: - ๐Ÿ’ณ FinTech - ๐Ÿฅ Healthcare - ๐Ÿ“ž Telecom - ๐Ÿ›’ E-commerce - ๐Ÿ  Real Estate - ๐Ÿด Food & Beverage ๐—ช๐—ต๐˜† ๐—–๐—ต๐—ผ๐—ผ๐˜€๐—ฒ ๐— ๐—ฒ: - ๐Ÿ•’ 7,000+ hours of successful project deliveries - ๐Ÿ”ง Expertise in complex, scalable systems - โญ 5-star rated professional with a focus on delivering top-quality solutions - ๐Ÿ“ˆ Flexible and scalable architectures for all your project needs - ๐Ÿค End-to-end project management for smooth and timely delivery ๐—ช๐—ต๐—ฎ๐˜โ€™๐˜€ ๐—ก๐—ฒ๐˜…๐˜: Imagine working with someone who not only understands your projectโ€™s technical needs but also foresees challenges before they arise. If you're ready to collaborate with a developer who is as committed to your success as you are, letโ€™s chat! Iโ€™d love to hear more about your project goals, discuss your vision, and share how my experience can turn it into reality. Drop me a message, and letโ€™s take the first step together!
    Featured Skill ZK
    Cache Management
    Apache Kafka
    Spring Framework
    JavaScript
    Hibernate
    Redis
    PostgreSQL
    MySQL
    MongoDB
    Node.js
    React
    Angular
    Kotlin
    Java
    Spring Boot
  • $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 ZK
    IBM Db2
    Apache Struts
    Spring Framework
    XSL
    XML
    Salesforce Lightning
    Core Java
    Jakarta Server Pages
    J2EE
  • $35 hourly
    • 4.8/5
    • (4 jobs)
    IT Specialist with over 15 years of experience in a variety of organizations . Committed to continuous learning to ensure my skills are up to date, flexible and organized, with ability to work effectively. Excellent contributor as part of a team and proven ability to work on own initiative.
    Featured Skill ZK
    Flutter
    Spring Boot
    Linux System Administration
    Jakarta EE
    Vaadin
    PrimeFaces
    Bash
    PostgreSQL Programming
    TypeScript
    Angular
    Ansible
    Android
    Database Architecture
    Java
    PostgreSQL
  • $25 hourly
    • 5.0/5
    • (24 jobs)
    Oracle certified associate, java 8 programmer I Over 13+ years, I have developed a wide range of web applications using Java, J2EE, JSF, Primefaces, Struts, LDAP, maven, Spring, Spring-boot, Spring-data, Spring-JPA, Hibernate, GWT, Oracle, MySql, Weblogic, Tomcat, WildFly/Jboss, PHP. My core competency lies in complete end-end management, I am seeking opportunities to build products from the ground up for you.
    Featured Skill ZK
    RESTful API
    Apache Maven
    Java
    J2EE
    MySQL Programming
    Spring Framework
    BIRT
    Google Web Toolkit
    Apache Struts
    Google Cloud Platform
    Hibernate
    JSON
    JavaScript
    Python
  • $70 hourly
    • 4.8/5
    • (13 jobs)
    Professional Summary: With over 20 years of expertise in full life-cycle software development, I excel in analysis, design, coding, testing, implementation, support, and maintenance. Known for my adaptability and quick learning, I am adept at mastering new domains, methodologies, paradigms, and technologies. A true team player, I bring a "can-do, will-do" attitude to every project, ensuring effective collaboration and innovative solutions to complex challenges. My latest review speaks for itself, "Paul did an outstanding job ... Superb work, timely, honest, knowledgeable, went above and beyond. Paul is meticulous in his approach. His work included helping specify the requirements, designing the solution, building and testing the software, fixing bugs and helping us deploy the solution. He was primarily focused in the areas of security (Spring), user management, UI development, persistence (hibernate), and exporting our data model to MS Excel. Paul was very fair in the accounting of his time. He was on time with all of his work. I'll likely engage him again without a doubt if/when needed." Skills: * Information Architecture (IA) * Domain Driven Design (DDD) * Object Oriented Design (OOD) * Object-Relational Mapping (ORM) * Object Oriented Programming (OOP) * SaaS development * Test Driven Design (TDD) * Unified Modeling Language (UML) * Unit Testing * User Experience (UX) * User Interface (UI) APIs: * Google Calendar * Google Maps * OpenAI * Sendgrid * TMDB Frameworks: * Vaadin * Spring Boot * Spring Security * JPA * Hibernate - ORM tool * Flowable - BPM tool * Quartz Scheduler * Rulebook * JUnit * mockito * vavr.io - functional programming for Java * Blaze-Persistence * OpenAI-Java Tools: * Android Studio * Intellij IDE * GitHub * Bitbucket * Jira * Confluence * PlantUML - UML diagramming tool * DBeaver - Universal Database Manager
    Featured Skill ZK
    Spring Framework
    Java
    CSS
    HTML5
    Java Persistence API
    Object-Relational Mapping
    Object-Oriented Programming
    SQL Programming
    Google APIs
    Payment Gateway
    API Integration
    Vaadin
    Spring Boot
    Web Development
  • $45 hourly
    • 4.5/5
    • (3 jobs)
    Results-driven IT professional with 19 years of experience across software engineering, AI, blockchain, and cloud computing. Proven expertise in Java, Python, AI, and Web3 technologies, with a strong background in designing and developing enterprise, cloud, and mobile applications. - Artificial Intelligence & Blockchain: Experienced in AI applications using ChatGPT, OpenCV, Gemini, Midjourney, Stable Diffusion, Eliza/ElizaOS framework and blockchain platforms like Algorand and Hyperledger Fabric. - Full-Stack Development: Expertise in Java (Spring Boot, Spring MVC, Hibernate, Vaadin, GWT, Struts) and Python/Django frameworks, along with Angular, React, Node.js, and TypeScript. - Cloud & DevOps: Designed and deployed cloud-based applications on AWS and OpenShift, leveraging Maven, ANT, and CI/CD pipelines. - Web & Enterprise Solutions: Strong proficiency in Java & J2EE (JSP, Servlets, JDBC, EJB, JNDI), with extensive hands-on experience in SOAP and RESTful web services. - Databases & Security: Well-versed in MySQL, Oracle, MongoDB, and implementing Spring Security for authentication and authorization. - System & Application Management: Hands-on experience with Software AG Apama, ServiceNow, and enterprise integration solutions. - Mobile & Emerging Tech: Led mobile development teams for Android and iOS, with experience in Web3, and decentralized applications. - Development Tools & Best Practices: Strong background in JUnit, Log4J, version control (Git, SVN, CVS), IDEs (Eclipse, JDeveloper, VS Code), and web/application servers (Tomcat, Glassfish, JBOSS, WebLogic).
    Featured Skill ZK
    TypeScript
    AI Development
    Angular
    Cryptocurrency
    Agile Software Development
    Spring Boot
    MySQL
    Vaadin
    Algorand
    React
    Ethereum
    Java
    Blockchain
    Google Cloud Platform
    Oracle Database
  • $60 hourly
    • 5.0/5
    • (12 jobs)
    ๐ŸŒŸ Top Rated Plus & Expert-Vetted Freelancer on Upwork ๐ŸŒŸ I am a seasoned Software Engineer with over 12 years of experience, specializing in developing robust enterprise applications. I have a proven track record of delivering high-quality software solutions that meet and exceed business requirements. My expertise includes microservices architectures, containerization, serverless computing, and monitoring and logging. My technical skills encompass modern Java frameworks, Python frameworks, NodeJS frameworks, and PHP frameworks. I also have experience with frontend technologies and data indexing and search. In addition to my technical prowess, I possess a strong foundation in software development methodologies such as Agile and Scrum, and I am well-versed in continuous integration and delivery practices. Overall, my experience and skillset position me as a versatile software engineer, capable of delivering high-performance software solutions. With my strong problem-solving abilities and commitment to quality, I am confident in my ability to excel in any software engineering role.
    Featured Skill ZK
    Python
    Django
    ExpressJS
    TypeScript
    Google Cloud Platform
    React
    Angular
    Node.js
    CI/CD
    Java
    Amazon Web Services
    Microservice
    Spring Boot
    Docker
    PHP
  • $55 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 ethic, 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 ZK
    Cloud Computing
    CI/CD
    SQL Programming
    J2EE
    DevOps
    Microsoft Azure
    Amazon Web Services
    RabbitMQ
    Hibernate
    Microservice
    RESTful API
    Spring Security
    Spring Boot
    Spring Framework
    Java
  • $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 ZK
    Apache Kafka
    API Development
    Micronaut
    Spring Security
    Spring Boot
    Core Java
    Apache Maven
    Spring Framework
    GraphQL
    Android
    Android App Development
    Python
    Firebase
    Java
    JavaScript
  • $26 hourly
    • 4.4/5
    • (45 jobs)
    Helping Startups & Agencies Increase Revenue by Developing Fast, Clean, High-Converting, and Modern Web & Mobile Applications. 10+ Years of Experience | 170+ Apps Launched | 8000+ Hours on Upwork ๐ƒ๐จ๐ฆ๐š๐ข๐ง ๐„๐ฑ๐ฉ๐ž๐ซ๐ญ๐ข๐ฌ๐ž: ----------------------------------- ๐Ÿš— Automotive | ๐Ÿฅ Healthcare |๐Ÿ’ต Finance โ›ฝ Oil & Gas |๐ŸŽ“ Education |โœˆ๏ธ Travel ๐Ÿ” Restaurant & Hotel | ๐Ÿข Real Estate โšฝ Sports |๐ŸŽฌ Entertainment I follow a robust lifecycle for development: Consulting โžก๏ธ Documentation โžก๏ธ Wireframing โžก๏ธ Design โžก๏ธ Development โžก๏ธ Testing โžก๏ธ Deployment ๐“๐ž๐œ๐ก๐ง๐ข๐œ๐š๐ฅ ๐„๐ฑ๐ฉ๐ž๐ซ๐ญ๐ข๐ฌ๐ž: --------------------------------- โ†’ Design Tools: Figma | Sketch | Adobe XD โ†’ Web Frontend & Backend Development: React | Node | Laravel | PHP โ†’ Mobile Development: React Native | Flutter | Java | Swift | XCode โ†’ Cloud Services: AWS | Firebase Services โ†’ Databases: MySQL | Cassandra | NoSQL databases | MongoDB | DynamoDB | CouchDB โ†’ Hosting & Management: Amazon | Heroku | Google Cloud โ†’ Managing EC2 | S3 | RDS | Beanstalk | Load Balancing Solutions โ†’ Version Control & Project Management: SVN | GIT | BitBucket | Jira | and more ๐‡๐ž๐ซ๐ž ๐ข๐ฌ ๐ฐ๐ก๐š๐ญ ๐œ๐ฅ๐ข๐ž๐ง๐ญ ๐ฌ๐š๐ฒ ๐š๐›๐จ๐ฎ๐ญ ๐ฆ๐ฒ ๐ฌ๐ž๐ซ๐ฏ๐ข๐œ๐ž๐ฌ ---------------------------------------------------------- โ˜…โ˜…โ˜…โ˜…โ˜… - Gary W. | React Native App "Good job! I am very impressed by the service quality, knowledge, and professionalism of the Green Apex Team. I appreciate their prompt responses to my queries and consistent updates on project status. The team's ability to provide effective ideas and recommendations has been remarkable. I highly recommend Green Apex as a long-term development partner for their valuable services and look forward to hiring them again for the next phase of our project. Thanks again, Nilay, for the exceptional journey with us!" Got an idea for a web or mobile app? Invite me, send me a message ๐Ÿ“ฉ or schedule a consultation ๐Ÿ“ž call today!
    Featured Skill ZK
    Heroku
    API Integration
    Web Application
    RESTful Architecture
    Spring Framework
    AngularJS
    Java
    JavaScript
    Hibernate
    Neo4j
    Amazon Web Services
    MongoDB
  • $12 hourly
    • 4.9/5
    • (5 jobs)
    HTML, CSS, JavaScript, JQuery Core Java (8 & 11), JSP, Servlet, Junit, and Mockito, Hibernate, MySQL, AWS (SQS, S3 Bucket, DynamoDB), Kafka & Web Services (REST & SOAP), Spring Boot, Microservices, Spring Framework (Core, AOP, WebMVC, JDBC, ORM & ORM), Lombok, MySQL, Docker, Git, etc. Deployment of Application on Windows / Linux Server using Docker Payment Gateway Integration using 3rd party API Online Transaction Processing (OLTP), Webhook handling, Payout handling, etc
    Featured Skill ZK
    Swagger
    Servlet
    Apache Kafka
    Docker
    Microservice
    JavaScript
    Java Persistence API
    Spring Boot
    Apache Maven
    Spring Framework
    Web Service
    Java
    Angular
    Hibernate
    Spring MVC
  • $30 hourly
    • 4.9/5
    • (289 jobs)
    Innovative, passionate, and quick software developer and architect with deep knowledge of programming concepts and internals. 24+ years of hands-on industry experience in programming, designing, managing, & leading software projects & companies. Change agent, problem solver with a passion for technology; skilled in grasping the big picture, conceptualizing, developing & implementing solutions by partnering closely with business leaders. Worked for different type of industries, which includes Health-care Informatics, Lab Informatics, MOOC, Online Education, ERPs, Electronic Design Automation (EDA), Semi Conductor, Heavy mechanical manufacturing, Travel, Pharmaceutical & e-commerce. Skilled in: Python | PHP | Apex | Objective C | Java | C/C++ | Flex | ActionScript | JavaScript | Perl | VB6 iPhone SDK | Android SDK | BlackBerry SDK | Flex SDK | Sancha Django | Django REST | Odoo | Web2Py | Zope | Plone | Open edX | CodeIgniter | .NET | Java EE SQL Server | MySQL | PostgreSQL | Sybase | DB2 | SQLite | MS Access Odoo | OpenERP | Salesforce CRM | MS SharePoint git | SVN | CVS | VSS | Unfuddle Scrum | UP | UML | CASE Tools | Poseidon | Rambaugh OMT ASP.NET | ASP | Telerik Visual C++| MFC | Win32 | COM | DCOM | OLE | Multithreading ANT | JDK | Digester| Struts | Servlets | JSP | EJB | WebSphere | Eclipse Web 2.0 | AJAX | CSS | XML | XSD OpenSource | github Knowledge Management | MediaWiki | PHP Health-care Informatics | ICD9 | ICD10 | HIPPA | HL7 SEMI Standards | EFEM | SEMI E87 | SEMI E90 | SEMI E40 | Robotics | SECS/GEM | SCADA Customs ERP | Landing Cost | HS Codes | WTO Standards Lab Informatics | Bika | OLiMS | LiMS | LIS Windows | MacOS | Linux | Ubuntu | Unix | EC2 Windows CE | Micro Controller Programming | Dynamic C
    Featured Skill ZK
    Ehealth
    Mapbox
    Apache Hadoop
    LIMS
    Android
    iOS
    Odoo
    web2py
    Django
    Laravel
    Python
    PHP
    WordPress
    React
    JavaScript
  • $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 ZK
    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
    J2EE
    AngularJS
    Python
  • $28 hourly
    • 4.9/5
    • (112 jobs)
    We are a highly motivated group of software professionals, with a vast experience of working with different types of Web-based, Desktop and Embedded Software Applications. We also have experience of implementation of CMMI. Our core skills are in the domains of Java, .Net, and Databases for Web, Desktop and Mobile Applications. Languages known are Java, C#, php, and cobol.
    Featured Skill ZK
    Vue.js
    Yii
    Angular
    SQL Programming
    API Integration
    ASP.NET
    React Native
    GitHub
    Google Cloud Platform
    Node.js
    React
    Apache HTTP Server
    PHP
    Java
    HTML5
  • $50 hourly
    • 4.8/5
    • (88 jobs)
    Expert developer in full stack development Real project experience with AI development, including AI Agent development, Automation integretion, Model finetune, Youtube video automation,ImageToVideo, ImageGeneration, Assistant, RAG
    Featured Skill ZK
    Selenium
    React Native
    Kotlin
    Spring Framework
    Test Design
    Microservice
    JavaFX
    Selenium WebDriver
    Apache Kafka
    Spring Cloud
    Python
    Java
    JavaScript
    Kubernetes
  • $35 hourly
    • 4.3/5
    • (65 jobs)
    ๐Ÿ… Top Rated Plus Freelancer ๐Ÿ•’ 1400+ hours on Upwork โœ… 100% Job Success Score I am a results-oriented bilingual with 11+ years of experience professional who is willing to work with clients worldwide. In my case, I am open to working with startup companies, small businesses, and even multi-national firms. I am deeply involved in all my projects from start to finish. I listen to my clients attentively and provide them a vision for what they want, and then I collaborate with them to create and execute a plan of action. I continuously offer my clients the pros and cons of each choice they make and convey my recommendations for their selections. I would like to give quick short profile summary as below Skills ---------------------------------------------------------------------------------------- โ€ข 11+ Years of IT Experience relevant to Java with BFSI domain like Banking & Insurance โ€ข Core skills SpringBoot, RESTful webservices, Microservices, JPA โ€ข Experience in Unit Testing with JUnit5, Mock/Mockito โ€ข Good experience with working on front end applications using JavaScript, JQuery and Bootstrap. โ€ข Strong experience with Agile or Scrum methodologies. โ€ข Good communicator in English โ€ข Experience with SQL Databases (e.g. Oracle) โ€ข Strong experience with GIT/BitBucket, JIRA, Jenkins, Confluence, Docker. โ€ข Good experience working with Tomcat, Jboss, WildFly โ€ข Experience working on Cloud technologies (AWS) โ€ข Experience using Apache Solr โ€ข Good Experience developing unit / integration test cases using Junit /TestNg. โ€ข Experience in Integration, Component and End-to-End Testing โ€ข Knowledge of Behavior Driven Development (BDD) for automated acceptance tests โ€ข Good ability to understand and work with code developed by other developers. โ€ข Very comfortable to work independently with minimal supervision Why me? -------------------------------------------------------------------------------------------- -Provide High Quality Services -Delivers Bug Free Code -Good Listener and Great Communication Skill. -Uses Latest technology for Development. Services I provide ---------------------------------------------------------------------------------------- *Software Development *Web application, Development & Maintenance *Creating Template and Reports *Finding Bug and Resolve. *Solve Assignments and Programming Problems. I would be happy if employed by you and will work to the best of my ability.
    Featured Skill ZK
    RESTful Architecture
    RESTful API
    Microservice
    EJB
    Jakarta Server Pages
    Web Service
    Spring Boot
    Spring Framework
    JavaFX
    Swing
    Git
    Java
    JavaScript
    MySQL
  • $39 hourly
    • 4.9/5
    • (82 jobs)
    ๐Ÿ‘ฉโ€๐Ÿ’ป I'm am a professional Full-Stack Web Developer with 10+ years of experience. And I lead the incredible team ๐Ÿ”ฅ Wiregate. We are focusing on turn-key ๐Ÿ”‘ projects. Starting from estimations and prototyping and finishing with Fault Tolerant/Highly Available Kubernetes cluster deployments ๐Ÿš€ Here is a shortlist of services that we provide: โœ… Web Development; โœ… Mobile Development; โœ… System Administration and DevOps; โœ… Web/Mobile Design; โœ… Logo design; ๐Ÿ› ๏ธ Do not hesitate and start working with us.
    Featured Skill ZK
    Next.js
    TypeScript
    PostgreSQL
    Web Application
    HTML5
    Laravel
    HTML
    PHP
    Node.js
    Web Development
    CSS
    React
    API
    JavaScript
    Python
  • $25 hourly
    • 4.1/5
    • (15 jobs)
    Development Professional Experiences ==================================== โ€ข Extensive work experience in Core JAVA, OOP and java/design patterns โ€ข Experience in J2EE (Servlets, JSP, EJB3), Spring boot , Hibernate/JPA, XML, UML, JUnit โ€ข Containerize Microservices push the container image to Azure Container Registry, and then deploy to Azure Kubernetes Service. โ€ข Worked with CI-CD pipelineAzure Kubernetes integration. โ€ข Use Jenkins to build and deploy the version changes of code from GitHub repo โ€ข Hands on experience in SQL and RDMS (Oracle, SQL Server, Postgres, SQLite) โ€ข Hands on experience in NoSQL Database MongoDB โ€ข Hands on experience in Ant, Maven, Ivy, Eclipse , Netbeans โ€ข worked on SVN , Git โ€ข Extensive work in Apache Tomcat, JBoss 6/7 โ€ข HTML, CSS, JavaScript, AngularJS, jQuery, Bootstrap โ€ข 3rd party libraries integration โ€ข JSON based Rest APIs (3rd party APIs and custom back-end APIs) โ€ข Integration with payment gateways - Stripe etc. โ€ข Hands on experience in software development life cycle and methodologies โ€ข Committed and well-appreciated work ethics โ€ข Good web server knowledge and a good understanding of communication technologies such as TCP/IP, Proxies, FTP, Shell etc. Versatile Software Development and Testing Professional | 10+ Years of Expertise in Power BI, SQL, and ETL/DWH Testing โ€ข Software Development and testing professional with 12+ years of experience โ€ข 12+ years of experience on Power BI, SQL , MSBI including End-to-End Implementation. โ€ข I pride myself in ability to designed and developed Power BI graphical and visualization solutions with business requirement documents and plans for creating interactive dashboards. โ€ข Utilized Power BI (Power View) to create various analytical dashboards that depicts critical KPIs such as legal case matter, billing hours and case proceedings along with slicers and dicers enabling end-user to make filters. โ€ข Generated ad-hoc reports in Excel Power Pivot and sheared them using Power BI to the decision makers for strategic planning. I have Utilized Power Query in Power BI to Pivot and Un-pivot the data model for data cleansing and data massaging and implemented several DAX functions for various fact calculations for efficient data visualization in Power BI. โ€ข Expert in creating and developing Power BI Dashboards in to rich look. โ€ข Expert level capability in all types of Database migrations with all the versions of SQL Server. Expertise in designing SSIS packages to import and transform data between databases and external data sources using various transformations. โ€ข Extensive experience in configuration and maintain Report Manager and Report Server for SSRS, Deployed and Scheduled the Reports in Report Manager,also I have Developed OLTP system (s) and involved in creating facts, dimensions and Star Schema representation for the data mart. โ€ข Good experience in Manual Testing and Automation Testing (selenium webdriver). โ€ข Expertise in creating Automation frameworks Page object and creating API automation framework (unirest). โ€ข Extensive experience in writing and maintaining test cases with JUnit, TestNG framework and also in testing the application using mobile devices Testing Professional Experience ================================ โ— Software testing professional with 12+ years of experience using various methodologies like ETL/DWH, Big Data & BI Testing. โ— Extensive work experience in ETL Methodology for supporting Data Extraction, Transformation and Loading process using Informatica Power Center 10.2, Matillion and Ab-initio 3.2 โ— Experience in Big Data Testing and used HIVE, Hadoop, Sqoop, Teradata, & SAS EG. โ— Extensively used snowflake as a Cloud based DWH โ— Hands on experience in Amazon Storage AS3. โ— Comprehensive understanding of software testing including creation of Test Scenarios, Test Plan, writing Test Cases and Test Reports. โ— Well acquainted with SDLC and exposure to all phases of STLC. โ— Extensive work experience in GUI, Functional, System Integration, Regression, Retesting, Performance Testing And supporting UAT. โ— Experience into writing Complex SQL Test Scripts by using SQL Developer. โ— Defect reporting and tracking using defect tracking tool HP ALM & JIRA. โ— Preparing Test Scripts Inventory, Execution Results Inventory, Test deliverables and defect log and making sure everything goes in line with customer requirement. Worked closely with BA & development teams to resolve quality issues. โ— Good Exposure to UNIX โ— Preparation of various release reports including Test Summary Reports, QA trackers based on the estimation.
    Featured Skill ZK
    Angular
    Google APIs
    Apache Groovy
    Data Analytics & Visualization Software
    Database Testing
    Microsoft Power BI
    Data Warehousing & ETL Software
    Amazon Web Services
    DevOps
    Informatica
    Microservice
    Apache Kafka
    Vaadin
    Spring Boot
  • $39 hourly
    • 4.4/5
    • (55 jobs)
    ๐Ÿš€ ๐ˆ ๐ฌ๐ฉ๐ž๐œ๐ข๐š๐ฅ๐ข๐ณ๐ž ๐ข๐ง:- ๐Ÿ‘จโ€๐Ÿ’ป Leveraging technology to solve real-world problems, ๐Ÿ“ˆ Improve processes, and enhance productivity. ๐ŸŒŒ With 18+ years of experience, Iโ€™ve re-engineered, debugged, and optimized projects My expertise spans:- โœจ ๐— ๐—ฎ๐—ฐ๐—ต๐—ถ๐—ป๐—ฒ ๐—น๐—ฒ๐—ฎ๐—ฟ๐—ป๐—ถ๐—ป๐—ด ๐—ฎ๐—ป๐—ฑ ๐—”๐—œ - Pytorch, Keras, Training AI models, ๐Ÿ”ฏ ๐—ฃ๐—ฟ๐—ผ๐—ด๐—ฟ๐—ฎ๐—บ๐—บ๐—ถ๐—ป๐—ด - โ˜•Java, Spring Boot, SQL, GraphQL, R ๐Ÿ…พ๏ธ ๐—ข๐—ฟ๐—ฎ๐—ฐ๐—น๐—ฒ - Oracle Sales Cloud|Oracle API Gateway|Netsuite|Oracle Cloud Database ๐Ÿ”— ๐—ฅ๐—ฒ๐—น๐—ฎ๐˜๐—ถ๐—ผ๐—ป๐—ฎ๐—น ๐——๐—ฎ๐˜๐—ฎ๐—ฏ๐—ฎ๐˜€๐—ฒ๐˜€ - MySQL, PostgreSQL, Transbase, BigQuery ๐Ÿ“Š๐Ÿ“ˆ ๐ƒ๐š๐ญ๐š ๐€๐ง๐š๐ฅ๐ฒ๐ญ๐ข๐œ๐ฌ, ๐ƒ๐š๐ญ๐š ๐ฌ๐œ๐ข๐ž๐ง๐œ๐ž, ๐ƒ๐š๐ญ๐š ๐‹๐š๐ค๐ž๐ฌ ๐š๐ง๐ ๐–๐š๐ซ๐ž๐ก๐จ๐ฎ๐ฌ๐ž๐ฌ โ›“ ๐—ก๐—ผ๐—ฆ๐—ค๐—Ÿ ๐—ฑ๐—ฎ๐˜๐—ฎ๐—ฏ๐—ฎ๐˜€๐—ฒ๐˜€ :- Neo4J, OrientDB, HBase,Document/Key-Value/Graph databases ๐Ÿ“”๐—˜๐—บ๐—ฏ๐—ฒ๐—ฑ๐—ฑ๐—ฒ๐—ฑ ๐—ฑ๐—ฎ๐˜๐—ฎ๐—ฏ๐—ฎ๐˜€๐—ฒ๐˜€ - Raima, SQLite, HSQLDB and FireBird โฐ ๐—ง๐—ถ๐—บ๐—ฒ ๐˜€๐—ฒ๐—ฟ๐—ถ๐—ฒ๐˜€ ๐—ฑ๐—ฎ๐˜๐—ฎ๐—ฏ๐—ฎ๐˜€๐—ฒ๐˜€ :- GridDB, TimescaleDB ๐Ÿ” ๐—”๐—ฃ๐—œ ๐—ณ๐—ฟ๐—ฎ๐—บ๐—ฒ๐˜„๐—ผ๐—ฟ๐—ธ๐˜€ :- Quarkus, Micronaut, SpringBoot โ˜ž ๐—™๐—ฟ๐—ผ๐—ป๐˜๐—ฒ๐—ป๐—ฑ - Vaadin, Wickets, JSF, React ๐Ÿ”“ Iโ€™ve customized open-source applications, optimized complex databases, and delivered efficient coding and team management solutions. ๐Ÿ“– An enthusiastic learner, I quickly grasp new concepts and thrive in diverse teams across geographies. โœ๏ธ Iโ€™ve ๐š๐ฎ๐ญ๐ก๐จ๐ซ๐ž๐ ๐Ÿ๐ŸŽ๐ŸŽ+ ๐›๐ฅ๐จ๐ ๐ฌ/๐š๐ซ๐ญ๐ข๐œ๐ฅ๐ž๐ฌ ๐จ๐ง ๐€๐ˆ, ๐๐ซ๐จ๐ ๐ซ๐š๐ฆ๐ฆ๐ข๐ง๐ , ๐ƒ๐š๐ญ๐š๐›๐š๐ฌ๐ž๐ฌ, ๐„๐“๐‹, ๐š๐ง๐ ๐š๐ง๐š๐ฅ๐ฒ๐ญ๐ข๐œ๐ฌ; helping startups grow rapidly through impactful technical writing. ๐Ÿ”ฆ My writing highlights product USPs, use cases, and ROI, showcasing their integration within software ecosystems. ๐Ÿคน๐Ÿฝ My skills include: ๐ŸŒŸ ๐—ฃ๐—ฟ๐—ผ๐—ด๐—ฟ๐—ฎ๐—บ๐—บ๐—ถ๐—ป๐—ด ๐—ฎ๐—ป๐—ฑ ๐—”๐—ฟ๐—ฐ๐—ต๐—ถ๐˜๐—ฒ๐—ฐ๐—ต๐˜๐˜‚๐—ฟ๐—ฒ ๐ŸŒŸ ๐€๐๐ˆ ๐ƒ๐ž๐ฏ๐ž๐ฅ๐จ๐ฉ๐ฆ๐ž๐ง๐ญ & ๐ˆ๐ง๐ญ๐ž๐ ๐ซ๐š๐ญ๐ข๐จ๐ง: Hands-on with SOAP/REST APIs ๐ŸŒŸ ๐——๐—ฎ๐˜๐—ฎ๐—ฏ๐—ฎ๐˜€๐—ฒ ๐—ข๐—ฝ๐˜๐—ถ๐—บ๐—ถ๐˜‡๐—ฎ๐˜๐—ถ๐—ผ๐—ป: Tuned large-scale, highly complex, and concurrent databases, ๐—ฅ๐—ฒ๐—น๐—ฎ๐˜๐—ถ๐—ผ๐—ป๐—ฎ๐—น | ๐——๐—ผ๐—ฐ๐˜‚๐—บ๐—ฒ๐—ป๐˜ | ๐—ก๐—ผ๐—ฆ๐—ค๐—Ÿ | ๐——๐—ถ๐˜€๐˜๐—ฟ๐—ถ๐—ฏ๐˜‚๐˜๐—ฒ๐—ฑ systems ๐ŸŒŸ ๐—ฃ๐—ฟ๐—ผ๐—ท๐—ฒ๐—ฐ๐˜ ๐—ฅ๐—ฒ-๐—ฒ๐—ป๐—ด๐—ถ๐—ป๐—ฒ๐—ฒ๐—ฟ๐—ถ๐—ป๐—ด : Successfully enhanced, debugged and augmented existing systems ๐ŸŒŸ ๐—ข๐—ฝ๐—ฒ๐—ป ๐—ฆ๐—ผ๐˜‚๐—ฟ๐—ฐ๐—ฒ ๐—–๐˜‚๐˜€๐˜๐—ผ๐—บ๐—ถ๐˜‡๐—ฎ๐˜๐—ถ๐—ผ๐—ป ๐ŸŒŸ ๐—ฅ๐—ฒ๐—ฝ๐—ผ๐—ฟ๐˜๐—ถ๐—ป๐—ด & ๐—ฉ๐—ถ๐˜€๐˜‚๐—ฎ๐—น๐—ถ๐˜‡๐—ฎ๐˜๐—ถ๐—ผ๐—ป: Built statistical/graphical reports using JFreeChart, ChartJS, HighCharts, and Google Charts. ๐ŸŒŸ ๐— ๐—ฎ๐—ฝ๐—ฝ๐—ถ๐—ป๐—ด & ๐— ๐—ฎ๐˜€๐—ต๐˜‚๐—ฝ๐˜€: Expertise in Google APIs for interactive mapping solutions. My Upwork scores: Java: 4.65/5.0 (๐“๐จ๐ฉ ๐Ÿ๐ŸŽ%) DHTML: 4.4/5.0 (๐“๐จ๐ฉ ๐Ÿ๐ŸŽ%) JSP: 3.9/5.0 (๐“๐จ๐ฉ ๐Ÿ๐ŸŽ%) Thank You ๐Ÿ˜Šโฃ๏ธ
    Featured Skill ZK
    Business Intelligence
    Java
    Data Science
    MySQL Programming
    Technical Writing
    NoSQL Database
    Database Architecture
    ETL Pipeline
    Data Analytics
    Jakarta Server Pages
    Content Writing
    Oracle PLSQL
    Neo4j
  • $30 hourly
    • 4.6/5
    • (26 jobs)
    Key Skills: โ€ข Total 18 Years of experience in Software Development using Java J2EE(Spring, Spring Boot, Spring Security, Spring Cloud, Spring SOAP, Micronaut, Hibernate, JPA, Struts, EJB, JMS, JSF, GWT, ActiveMQ, Apache CAMEL, Apache Kafka, Apache Pulsar, Microservices ) โ€ข J2EE(Spring, Spring Boot, Spring Security,Spring Cloud, Micronaut, Hibernate, JPA, Struts, EJB, JMS, JSF, GWT, ActiveMQ, Apache CAMEL,Apache Kafka, Apache Pulsar, Microservices ) โ€ข Serverless frameworks (Azure Functions, Durable Functions, AWS Lambda, IBM Openwhisk) โ€ข Extensive working knowlegde of Cloud Infrastructure and Marketplace applications(Azure -Function Apps, Durable Fucntions, APIM, Azure Service Bus, Key Vault, Azure EventHub, AWS - Lambda Functions, AWS API Gateway, S3, AWS SQS, IBM Cloud, GraalVM). โ€ข Good experience of working with Data Streaming platforms like Apache Pulsar and Apache Kafka. โ€ข Distributed Edge Computing and have good experience in working with systems of high scale. โ€ข Good working experience of integrating the systems with AI Bots. โ€ข Worked on Auth0, Okta and integrating many systems using Auth0 โ€ข Worked on Siddi and Complex Event Processing (CEP Systems) โ€ข Containers (Docker, Kubernetes, Azure AKS) โ€ข Extensively worked on Performance Testing using various tools like Apache Pulsar Perf, Jmeter, YCSB and getting Benchmark numbers. โ€ข Search Engine (Solr, Lucene, Elastic Search) โ€ข Expertise in development of Plug-ins, Widgets, Jive Apps, Web Services, Themes on Jive Platform and well versed with Jive SBS 4.5, 5.0, 6.0, 7.0, 8.0, jive-n, jive-x platforms โ€ข Expertise in using build tools like Maven, Ant, Jenkins, Cruise Control and setting up CI/CD pipelines โ€ข Expertise in writing/consuming Web Services (REST and SOAP) โ€ข ETL Tools (Talend Open Studio and ETL Works). Good working knowledge of Talend Open Studio and cloud based ETLWorks and writing and integrating jobs with other systems like Salesforce, Mulesoft, Sharepoint, MercuryGate, Ring Central, Twilio, SendinBlue, DAT, BlueYonder, 123Loadboard, DAT etc and other Enterprise Web applications. โ€ข Expertise in deploying web applications on Windows/Linux/Unix servers โ€ข Good Hands on experience in managing and configure Servers like Tomcat,Apache, SUN ONE AS โ€“ 8.1, WEBLOGIC 8.1, Glassfish v3 and 4 โ€ข Certified as SCJP(Sun Certified Java Professional) โ€ข Certified as SCWCD(Sun Certified Web Component Developer) Professional โ€ข Certified MongoDB developer from MongoDB University Over the last few years I have worked with global clients like ICOMAI, Albertsons, UST-Global, British American Tobacco(BAT), Grail Research, Sony, Hitachi, Morgan Stanley, Bank of New York and have gained considerable experience in architecting and developing highly scalable Enteprise web and data solutions.
    Featured Skill ZK
    Distributed Computing
    SonarQube
    J2EE
    Performance Testing
    Microsoft Azure
    Web Service
    JSON
    Java
    JUnit
    API Integration
    Spring Boot
    Azure DevOps
    Docker
    Microservice
    Spring Batch
  • $30 hourly
    • 5.0/5
    • (11 jobs)
    I have more than 10 years of development experience in Web/Desktop/Mobile App development. Developed Systems to generate EDI for following transactions. 837P โ€“ Health Care Claim Professional, HIPAA 5010 837 Q1 for professionals 837I โ€“ Health Care Claim Institutional, HIPAA 5010 837 Q3 for institutions. 837D โ€“ Health Care Claim Dental, HIPAA 5010 837 Q2 for dental practices 835 โ€“ Health Care Claim Payment / Advice 270 โ€“ Health Care Eligibility Benefit Inquiry. 271 โ€“ Health Care Eligibility Response. 276 โ€“ Health Care Claim Status Request. 277 โ€“ Health Care Claim Status Response. 278 โ€“ Health Care Services Review โ€“ Request for Review and Response 820 โ€“ Payroll Deducted and Other Group Premium Payment for Insurance Products 834 โ€“ Benefit Enrollment and Maintenance. I have Developed Clearing House and also integrated with many clearing houses like TriZetto, claimMD, Way Star, Availity, Ability, Office Ally etc. EDI ANSI, EDIFACT, TRADACOMS transactions development in Supply Chain and HealthCare. Developed various projects, some of them are below:- 1) MedAssist EHR - Chronic Care and the Medical System 2) DoingThisTogether - A Mental Health EHR 3) IntelliBill - PMS for USA HealthCare Clinics and Hospitals 4) Medifusion - EHR & PMS for USA HealthCare Clinics and Hospitals 5) Nexel - EHR for USA HealthCare Clinics and Hospitals 6) CignaDiamond World Care 2021- USA HealthCare product 7) MyDoctorsChart -EHR for USA HealthCare Clinics and Hospitals 8) MU-2 Certification (ONC) - Implemented CCDA, Direct Messaging, Immunization & Lab HL7 EDI files, CQM (QRDA Cat I & III) and MU-Calculator(s). 9) EDI 837 I Batch File Generation - Claim file for hospital Billing 10) EDI 4010 to 5010 - Upgrading billing 837(P & I), ERA 835, Eligibility, Claim Status 11) AJK School Management System - Web App and 6 Android Apps for different device's SDKs. 12) iSPOT-ECTS - Vehicle Tracking Devices Integration. I have hands-on experience in front-end technologies, back-end technologies, and Databases. Working on any technology or framework has never been an issue to me. I am a fast learner and have Curiosity for learning, always ready to accept challenging tasks.
    Featured Skill ZK
    Web Design
    EDIFACT
    Electronic Data Interchange
    Healthcare Software
    SQL
    ASP.NET
    ASP.NET MVC
    Electronic Health Record
    .NET Core
    Medical Billing & Coding
    .NET Framework
    Android
    React Native
    React
  • $25 hourly
    • 5.0/5
    • (48 jobs)
    Hi, I'm Abdul, an expert in creating robust, adaptable, and high-performance AI solutionsโ€”trusted by Fortune 500 giants My passion lies in creating AI solutions that are not only functional and performant but also easy to maintain, extend, and free of bugs. I believe in developing robust solutions that meet current requirements and can adapt smoothly to future ones. I have strong English communication skills. Honestly and integrity are my core values. ๐Ÿš€SKILLS: ๐Ÿ”ง AI: MCP, n8n, Zapier, OpenAI, AI VoIP, AI Models integration, Vector Databases, Text to Image, Text to Speech, Audio to Text. ๐Ÿ”ง Backend Development (Java 8-20+ / Kotlin / Python / Spring AI / Spring Boot Microservices / NodeJS / NestJS / Spring MVC / Spring Data JPA / Spring Security / Spring Cloud / Micronaut / Ktor / Apache Camel / Apache Kafka / Hibernate / Keycloak / Elastic Stack / Flask / FastAPI / JavaFX / MYSQL / MongoDB / PostgreSQL / IBM DB2 / Oracle / MariaDB / JDBC / Maven / Gradle / XSL / JSTL / JSP) ๐Ÿ”ง Frontend (Bootstrap, Angular, React, Vue, Vaadin) ๐Ÿ”ง Software Testing (JUnit / Mockito / Cucumber / Selenium / Concordian) ๐Ÿ”ง Cloud (AWS / GCP / CloudFlare) ๐Ÿ”ง Version Control and CI/CD (Git, Mercurial, Jenkins, CircleCI, Github) ๐Ÿ”ง DevOps (Docker / Kubernetes / IaC using Pulumi) ๐Ÿ”ง Collaboration Tools (Jira / Confluence / Fisheye / Crucible) ๐Ÿ”ง Communication: English (Bilingual) ๐Ÿš€ Soft Skills: ๐Ÿ’ฌ Bilingual English spoken and written communication ๐Ÿ’ฌ Excellence of manners ๐Ÿ  5+ years of experience in remotely working with clients โ˜Ž๏ธ High availability for comms ๐Ÿ“– 2+ years of experience in teaching Software Development and conducting training, with great feedback from my students.
    Featured Skill ZK
    NestJS
    AI Development
    Browser Extension
    Jenkins
    AWS Application
    Spring Cloud
    Unity
    C#
    Angular
    React
    Docker
    JavaScript
    Python
    Spring Boot
    Java
  • $40 hourly
    • 4.8/5
    • (19 jobs)
    I'm Managing Director of Fullstack QA Services & expertise Test & QA processes from strategy to chapters & plans Cross platform, cross browser test automation, using latest frameworks Functional testing (manual & automated) Agile development process implementation API & SOA testing (manual & automated) Continuous integration Root cause analysis & fixing Test Driven Development Code coverage analysis Application performance management & code profiling Thanks for visiting my profile.
    Featured Skill ZK
    Automated Testing
    JUnit
    Apache Groovy
    Spock
    MongoDB
    Testing
    WebdriverIO
    Java
    SQL Programming
    Test Management
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