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4.7/5
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  4. (Current) Apache Tomcat Developers
  • $40 hourly

    • 5.0/5
    • (26 jobs)
    I have been working as a Java developer for 6 years. As I am new to Upwork, completing jobs according to the client's requirements is not only my duty but it is my necessity. Client satisfaction will be my first preference. It's important to me to build long term relationships with clients, so I'm primarily looking for long term projects. I'm flexible with my working hours and am happy to work closely with any existing freelancers you work with. I have 6+ years of experience in Web application development, Trading Platforms, Web Scraping, Microservice architecture, and Scripting. Worked on E-commerce apps, GPS Monitoring Servers, Experience on OAuth2, Facebook, Google, Twitter, Google Maps integration and Spring Security. Please connect with us for a safe business and for better product delivery on time. Instead of making false promises or writing big slogans let's start work.
    vsuc_fltilesrefresh_TrophyIcon Apache Tomcat
    Angular
    OAuth
    Vuetify
    Git
    Jakarta Server Pages
    Java
    Vue.js
    RESTful API
    Microservice
    Web Application
    Spring Security
    Spring Boot
    React
    Scripts & Utilities
    JavaScript
    Ext JS
  • $35 hourly

    • 5.0/5
    • (16 jobs)
    I specialize in developing Java web applications using Spring framework. From RESTful Web services to narrowly specialized apps for text recognition and other enterprise tasks. Both front-end and back-end. Also, I can design a relational database using any system you want. Skills: - Java - Spring Framework - Spring Boot - Angular JS - Vue.js - Vaadin Framework - JAX-RS - Hibernate - JSP - Freemarker - Thymeleaf - HTML/CSS - JavaScript - jQuery - Bootstrap - Tesseract OCR, Nicomsoft OCR - MySQL, PostgreSQL, Informix IBM SQL, SQLite, - MongoDB I have a master degree in Software Engineering from Kyiv Polytechnic Institute. As a developer, I have also taken part and won large number of hackathons.
    vsuc_fltilesrefresh_TrophyIcon Apache Tomcat
    Hibernate
    HTML
    Vaadin
    CSS
    Java
    JavaScript
    Spring Framework
    Jakarta Server Pages
    SQL
  • $25 hourly

    • 5.0/5
    • (18 jobs)
    Hello! I’m Fares Baccouch! Mobile App Developer with 3 years of experience in Mobile app development, specialized in Android mobile app development mainly. I'm a flutter developer which is a cross-platfom framework to develop hybrid mobile apps. 📌 What do I perform? ✔️ Android applications development ✔️ iOS applications development ✔️ web application development ✔️ Other platforms 🌟 Using the following technologies: 1- Flutter 2- Dart 3- Flutter developer 4- Flutter SDK 5- App development 6- Hybrid app 7- Flutter Firebase e.t.c I also happen to be a web front-end developer, I have an in-depth knowledge including advanced HTML5, CSS3, JavaScript, Bootstrap, jQuery, react , react-native, wordpress, shopify... 🎯 I am a full-time freelancer, so you can contact me at any time.
    vsuc_fltilesrefresh_TrophyIcon Apache Tomcat
    Hybrid App
    ExpressJS
    Laravel
    React
    Node.js
    React Native
    PHP
    Firebase
    Mobile App Development
    iOS
    Android
    Dart
    Flutter
    Hybrid App Development
    Native App Development
  • $15 hourly

    • 4.7/5
    • (41 jobs)
    FLUENT ENGLISH TOP-RATED UPWORK FREELANCER ALL 5 STAR REVIEWS 100% CLIENT RECOMMENDATION FAST EXECUTION I’m a passionate and experienced Mobile App Developer specializing in Native and Cross-platform mobile app development. With over 10 years of experience, I help businesses of all sizes transform their ideas into functional, user-friendly mobile applications. Whether you need a high-performing iOS, Android, or cross-platform app (like Flutter, React Native), I’ve got you covered. 𝐒𝐄𝐑𝐕𝐈𝐂𝐄𝐒 𝐈 𝐎𝐅𝐅𝐄𝐑: ▪️ Mobile App Development ▪️ Web Development ▪️ MVP & Product Development ▪️ Prototyping & UI/UX ▪️ Quality Assurance ▪️ Innovation Consulting ▪️ Project Rescue ▪️ SaaS Solutions ▪️ DevOps & Cloud Hosting 𝐓𝐄𝐂𝐇𝐍𝐎𝐋𝐎𝐆𝐈𝐄𝐒 𝐈 𝐖𝐎𝐑𝐊 𝐖𝐈𝐓𝐇: ▪️ Native Mobile App Development (Swift, Objective-C, Kotlin, Java) ▪️ Cross-Platform App Development (Flutter, React Native) ▪️ App Design & UI/UX (Figma, Adobe XD) ▪️ API Integration (RESTful APIs, GraphQL) ▪️ Backend Development (Node.js, Firebase, Laravel, Python) ▪️ Cloud Integration (AWS, Firebase) ▪️ Push Notifications & In-app Messaging (Firebase, Twilio) ▪️ Payment Gateways Integration (Stripe, PayPal, Apple Pay, Google Pay) ▪️ App Store Optimization (ASO) & SEO (for app visibility and ranking) 𝐈𝐍𝐃𝐔𝐒𝐓𝐑𝐈𝐄𝐒 𝐈 𝐒𝐄𝐑𝐕𝐄: ▪️ Education and E-learning ▪️ E-Commerce and Retail ▪️ Healthcare and Pharmaceuticals ▪️ Sports and Fitness ▪️ Travel and Hospitality ▪️ Food and Beverage ▪️ Transportation and Logistics ▪️ Luxury Goods and Services ▪️ Fintech and Finance ▪️ Media and Entertainment ▪️ Real Estate and Property Management ▪️ Agriculture and Farming ▪️ SaaS (Software as a Service) 𝐖𝐇𝐘 𝐂𝐇𝐎𝐎𝐒𝐄 𝐌𝐄? ▪️ 𝐄𝐱𝐩𝐞𝐫𝐢𝐞𝐧𝐜𝐞𝐝 & 𝐑𝐞𝐥𝐢𝐚𝐛𝐥𝐞: With over 10 years in mobile app development, I have successfully delivered numerous projects with high client satisfaction. ▪️ 𝐐𝐮𝐚𝐥𝐢𝐭𝐲 𝐅𝐢𝐫𝐬𝐭: I take pride in delivering high-quality, bug-free apps that are both visually appealing and highly functional. ▪️ 𝐂𝐥𝐞𝐚𝐫 𝐂𝐨𝐦𝐦𝐮𝐧𝐢𝐜𝐚𝐭𝐢𝐨𝐧: I believe in clear, open communication throughout the project to ensure everything aligns with your vision. ▪️ 𝐓𝐢𝐦𝐞𝐥𝐲 𝐃𝐞𝐥𝐢𝐯𝐞𝐫𝐲: I’m committed to delivering projects on time, within budget, and with the utmost attention to detail. ▪️ 𝐄𝐧𝐝-𝐭𝐨-𝐄𝐧𝐝 𝐒𝐮𝐩𝐩𝐨𝐫𝐭: From conceptualization to launch and ongoing updates, I’m here for you at every stage of your app’s journey. I'm eager to contribute my skills and expertise to your next exciting mobile app project. Let's build something amazing together!
    vsuc_fltilesrefresh_TrophyIcon Apache Tomcat
    Flutter
    React Native
    XML Web Services
    Product Management
    Mobile App Redesign
    iOS SDK
    Mobile App Development
    iPad App Development
    Apple Xcode
    Mobile App Design
    Ecommerce Website Development
    Swift
  • $30 hourly

    • 4.8/5
    • (384 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.
    vsuc_fltilesrefresh_TrophyIcon Apache Tomcat
    SQL
    J2EE
    CentOS
    XML
    SMS Gateway
    Oracle WebLogic Server
    Microsoft Excel
    PHP
    C#
    MySQL
    Java
    JavaScript
  • $25 hourly

    • 4.7/5
    • (139 jobs)
    Provide real solutions Experienced in Java Programming, Apache Wicket framework, Spring MVC, Spring, Spring-boot, Angula JS, Google Guice, twitter bootstrap, Mercurial, Git, Subversion, jpa, hibernate, mysql, postgresql, linux administration for redhat, centOS, ubuntu, openSuSE, SLES, fedora, Amazon Web Services, Ckan deployment, heroku, jhipster, Spring Webflux, Apache OfBiz
    vsuc_fltilesrefresh_TrophyIcon Apache Tomcat
    jQuery
    Apache OFBiz
    JHipster
    PostgreSQL Programming
    Linux System Administration
    PostgreSQL
    Amazon EC2
    Angular
    Java
    Spring Framework
    Alfresco Content Services
  • $25 hourly

    • 4.6/5
    • (21 jobs)
    Expert with a decade of experience in designing and developing ERP/SAAS applications from the ground up. I would like to understand your complete Project Scope/Requirements to successfully implement the logic and form a long-term professional relationship. What will you get after hiring me for your project? - I will design your solutions from scratch as per your unique needs and goals. - Focused on Attention to detail, clean, well-structured code, and user-friendly experience. - Your app will be built to handle growth and change for any kind of future requirements. - I will work closely with you and your team collaboratively throughout the whole development process to ensure your satisfaction. Technical Expertise: Backend- Java, Java EE, Spring (MVC, Boot, Security, Data, Batch), Hibernate, Play, Tomcat, Jetty, Hbase, ELK, Apache Thrift/Kafka/Solr, Dropwizard, ElasticSearch, Jboss, GWT. Frontend - Angular JS, React JS, Node JS, JavaScript. Cloud and DevOps - Kubernetes, Cassandra, Redis, MongoDB, MySQL, SQL, AWS (EC2, S3, Lambda, etc.). Let's come together and make this relationship successful by delivering the topmost quality.
    vsuc_fltilesrefresh_TrophyIcon Apache Tomcat
    Elasticsearch
    AWS Lambda
    Kotlin
    Java
    Hibernate
    AngularJS
    Spring Framework
    MySQL
    Ansible
    Microservice
    Play Framework
    Spring Boot
    React
  • $45 hourly

    • 4.4/5
    • (30 jobs)
    I am a Java Web Developer, working as freelancer, mainly in Upwork. I am very passionate with Java and JVM technologies. My experience mostly in developing Software As A Service (SaaS) platform, business computing and information system area, using Bootstrap, Angular JS or JSF as UI Components or web framework, Spring Core, Spring MVC or JBoss Seam as Restful API endpoint and or Integration framework, and Hibernate as favorite Java Persistence API (JPA) implementation wrapped by Spring Data component. If my clients requires no casual application or web server, I like to use Spring Boot for simpler development and deployment of the application. I am also interested in database design and software design. I believe that great software not only mediocre work of typing, but also comes from thoughtful process. I believe in TDD, and also believe that tests code must be written, organized as good as the source code it self and is integral part of the source code. I am a quick learner, and In my spare-time, I am writing some personal open source project and small proof-of-concept about java-related stuff in my GitHub public repository. My primary machine is linux desktop with 1TB NVMe SSD and 64GB or RAM. I have macbook pro 15 for testing purpose and to allow me mobile occasionally, if needed. Communication is important in remote work, and for this purpose I have 2 link dedicated internet connections to my workspace. If you need my detailed skill abilities, below is what I have experienced in: - Software Design, Database Design, and microservices/Micro-services/micro services architecture. - JPA 1.0, JPA 2.0, with Hibernate. - Bean Validation Specification with Hibernate Validator. - Dependency Injection with Java DI (JSR-330), Java Context and Dependency Injection for Java EE Platform (JSR-299), and Spring Core as most popular (but non-standard) Java Dependency Injection Framework. - Java Web Framework with Spring MVC and JSP, or Java Server Faces (JSF) with Facelet and Primefaces. - Spring Boot, Spring Data stack. - Generated / scaffolding web application using JHipster. - Java Web / Application server with Tomcat, Wildfly, or Websphere AS. - Logging with SLF4J as a wrapper to Log4J or Logback. - JUnit or Test NG as testing framework. - Ant, Maven or Gradle as build and dependency management tool. - HTML 5, CSS 3, JavaScript, JQuery, Twitter Bootstrap, transparency.js, and angular / angular.js - Third Party API such as Xero API, Open ERP Java API, Braintree Payment API, Stripe Payment API, and Social APIs. - Linux, Mac or Windows. - MySQL, PostgreSQL, Oracle, or Microsoft SQL Server for RDBMS. - Couchbase or Mongo DB for No-SQL solution. - Elasticsearch (ELK) stack or pentaho for data integration, advanced search, reporting and data analysis solution. Thanks, Resa
    vsuc_fltilesrefresh_TrophyIcon Apache Tomcat
    Spring Framework
    Angular
    Spring Data
    DigitalOcean
    Spring Boot
    Hibernate
    JHipster
    Java Persistence API
    Amazon Web Services
    Web Service
    SQL
    JavaScript
    Java
  • $30 hourly

    • 5.0/5
    • (13 jobs)
    I'm a full-stack software engineer cum Architect with an experience of 15 years, interested in architecting and building performant web solutions with pixel-perfect, buttery-smooth user interfaces, backed by flexible, state-of-the-art APIs. I have experience in both enterprise and non-enterprise environments. In my recent past, I served as “Solution architect” for the enterprise scale multi-tier solutions in Telecom, eCommerce and banking domain. In that position, I was responsible for making high-level design choices, dictating technical standards, including coding standards, tools, and platforms, as well as implementing all the above MY KEY SKILLS & TECHNOLOGIES - • Backend Programming: - JAVA-JEE and related framework • Databases: - MSSQL, Oracle, DB2, MySql, PL/SQL, Postgress, MongoDB • Frontend: - HTML, Javascripts, Angualrjs, React, jQuery, Bootstrap Twitter • Frameworks: - Springs, Springboot, SOAP Web-Service, Rest API, Microservices, JPA, Hibernate, EJB, JMS, Struts, Optaplanner, Drool • Server: - IBM WebSphere Application Server, IBM MQ, Oracle WebLogic Server, Jboss, Tomcat, Apache Kafka • Tools & Utilities: - Aqua Data Studio Clear Quest, Oracle SQL Developer, SVN, Maven, SOAP UI, TOAD, Win-SCP, Putty, Clear Case, CMVC, HP QC, JIRA, Maximo My core competency lies in design and developing end-end web products development project. Reasons to hire me. • An Expert JAVA JEE Senior Professional extensive experience in product architecture design and development • Expert in frontend and backend technologies • Expertise in converting business requirement into technology solutions • Expertise to deal with the client regarding the requirements that includes functional and performance related requirements/issues • Expertise in software development life cycles • Efficient in interactions with people and problem solving • Expertise in cutting edge product development
    vsuc_fltilesrefresh_TrophyIcon Apache Tomcat
    NGINX
    AngularJS
    RESTful API
    J2EE
    Spring Boot
    Oracle Database
    Microsoft Azure
    SOAP
    Kubernetes
    Microservice
    Azure DevOps
    Spring Framework
    SQL
    Java
  • $50 hourly

    • 4.9/5
    • (45 jobs)
    I'm an Oracle-certified Java expert with much experience in backend technologies, including but not limited to Spring Framework, JPA, MongoDB, etc. I'm also an AWS-certified and Kubernetes-certified DevOps engineer; hence, I can help if you need additional infrastructure resources. With 20,000+ hours of work on Upwork alone, I believe I can make a meaningful contribution to your project. As a side note, if you do a Google search with the keywords "spring bean", "spring boot interview questions", or "maven integration testing", you'll find my writings at the top spots.
    vsuc_fltilesrefresh_TrophyIcon Apache Tomcat
    Terraform
    Docker
    Web Service
    Hibernate
    RESTful API
    MySQL
    API
    Kubernetes
    Amazon Web Services
    Spring Framework
    Spring Boot
    Java
  • $60 hourly

    • 5.0/5
    • (32 jobs)
    I bring over 15 years of expertise in software development and implementation, delivering impactful solutions across diverse projects—from small-scale departmental applications to sophisticated enterprise back-office systems and eCommerce platforms. My experience spans multi-national corporate environments, where I have consistently driven success through innovation, scalability, and technical excellence. My expertise lies in the design, development, testing, and support of software solutions using Java and Java EE technologies, with extensive experience in frameworks and APIs such as Spring (Core, Web, MVC, Data, Security, Cloud, Batch), Spring Boot, Hibernate/JPA, JSF, JSP/Servlets, and Struts. Beyond Java, I possess deep expertise in JavaScript, advanced mastery of database design and SQL, and significant experience in designing and optimizing CI/CD pipelines for seamless and reliable software delivery. Extensive front-end technology expertise in XHTML/HTML5, CSS, and JavaScript, with hands-on experience in frameworks such as React, Vue.js, jQuery, Ext JS, Kendo UI, Thymeleaf, JSP, and JSF/PrimeFaces, enabling the creation of dynamic and responsive user interfaces. My relational database expertise spans platforms such as Microsoft SQL Server, PostgreSQL, MySQL, and Oracle, with proficiency in designing, optimizing, and managing complex systems. I also have experience with big data technologies, including Apache Spark, Kafka, and NoSQL databases, enabling effective large-scale data processing and analytics. Extensive experience in designing and deploying microservices architectures, utilizing best practices such as service decomposition, domain-driven design (DDD), and API-first development. Proficient in building scalable, fault-tolerant systems with containerization technologies like Docker, orchestration platforms like Kubernetes, and communication patterns including synchronous RESTful APIs and asynchronous messaging queues (e.g., Kafka, RabbitMQ). Skilled in deploying microservices in cloud environments (AWS) with CI/CD pipelines and monitoring solutions to ensure reliability, scalability, and observability. Experienced in deploying and supporting cloud-based applications using AWS services such as EC2, RDS, Lambda, ECS, CodeDeploy, CodeArtifact, and Glue. Proficient in designing Bitbucket pipelines and Jenkins-based deployment workflows, as well as continuous integration and delivery (CI/CD) with tools like Maven, Jenkins, Flyway, and Liquibase. Skilled in integrating version control (Git) with Jira for seamless project management and collaboration. My web application server expertise spans a diverse set of platforms, including Apache Tomcat, Apache TomEE, JBoss, and Oracle WebLogic, showcasing proficiency in deploying, configuring, and optimizing server environments for robust application performance. Strong background in managing projects using Agile methodologies, with extensive experience in Scrum and Kanban frameworks. Skilled in facilitating Agile ceremonies such as sprint planning, daily stand-ups, retrospectives, and sprint reviews. Proficient in leading cross-functional teams, managing backlogs, and ensuring continuous delivery of high-quality software through iterative cycles. Demonstrated ability to adapt Agile practices to meet project needs, fostering collaboration and ensuring timely project delivery. I am highly skilled in high-level requirements gathering, risk analysis, technical design analysis, application modeling, implementation planning, and providing ongoing support, in addition to application development. With expert technical skills, knowledge, and experience, I have delivered a broad range of business solutions across various vertical markets, including FinTech, healthcare, legal services, education services, insurance technology, retail solutions, logistics, transportation, pharmaceutical technology, manufacturing, AdTech, construction solutions, beauty industry innovation, B2B goods, and nonprofit services.
    vsuc_fltilesrefresh_TrophyIcon Apache Tomcat
    Back-End Development
    Microservice
    Web Development
    Jakarta Server Faces
    Jakarta Server Pages
    PostgreSQL
    Microsoft SQL Server
    MySQL
    JavaScript
    Node.js
    React
    Hibernate
    Spring Boot
    Spring Framework
    Java
  • $50 hourly

    • 5.0/5
    • (39 jobs)
    I am a Java Developer with 7+ years of professional experience in developing Web and Enterprise Applications using technologies like Java / J2EE, Spring, REST ,SOAP webservices, Struts, Hibernate, iBatis, JavaScript, jQuery. I have experience as a Full-Stack developer with more emphasis on the backend. I was part of the Order Management System team for Sears Holdings, which is the system which manages an order placed in Sears and Kmart sites till it is fulfilled to the customer, by communicating with multiple systems. Improved the efficiency of the orders sent to Kmart store system by designing and implementing a Merchandise Pickup subsystem which allows the orders to be held during the store closed hours. I was selected under Wipro Technologies' STAR Hire Program 2014. I was part of the team that designed and implemented a Dealer Management System for Mahindra & Mahindra, which is a centralized application that captures customer, vehicle and inventory information to facilitate better inventory management and provide visibility on dealer operations. I was also part of NextGen Medicare Advantage Team, which provides real-time eligibility and enrolment, member management, financial reconciliation and encounter data services to Medicare Advantage, compliant with CMS requirements.
    vsuc_fltilesrefresh_TrophyIcon Apache Tomcat
    AWS Fargate
    Object-Oriented Programming
    J2EE
    Android App Development
    SOAP
    Software Architecture & Design
    Docker
    PostgreSQL
    SQL
    Spring Boot
    MySQL
    Apache Maven
    Hibernate
    Java
    Spring Framework
  • $30 hourly

    • 4.9/5
    • (23 jobs)
    TOP RATED | SUCCESSFUL STARTUP APPS | 30K+ USER BASE APP DEVELOPMENT | APP UPDATE | MAINTAINANCE :: Tech stack :: SWIFT | SWIFTUI | KOTLIN | REACTNATIVE :: Domain :: HEALTHCARE | FITNESS | LOGISTICS | LAST MILE SOLUTIONS | AUTOMOTIVE | HOME APPLIANCE • Location / Map based APP • IoT Enabled apps (BLE | Wi-Fi) • Augmented Reality (AR) | Mixed Reality (MR) • Machine Learning || Model Integration • Computer Vision, OpenCV, Tensorflow • In-App Purchase | Stripe | PayPal | Credit Card Integration • Photo Capture | Edit | Caption | Filter | Frame | Share I am working as a Mobile Application Engineer since last 7 years where I have had a chance to work with clients and teams across the globe. I have great communication skills and am committed to provide full work satisfaction up to my capabilities.
    vsuc_fltilesrefresh_TrophyIcon Apache Tomcat
    OpenCV
    TensorFlow
    Internet of Things
    Android App Development
    Realm Database
    Java
    Firebase
    GraphQL
    Kotlin
    SQLite
    Augmented Reality
  • $80 hourly

    • 4.4/5
    • (222 jobs)
    Hello, thanks for reviewing my profile. ~10 years in web and application development. Experience with various languages, including but not limited to C++, C#, PHP, Java, JS, and Python. Experience with various hosting platforms and project management tools, including but not limited to AWS, Docker, Git and SSH. Extensive experience with HTTP REST APIs and OAuth / OAuth2 protocols.
    vsuc_fltilesrefresh_TrophyIcon Apache Tomcat
    Amazon Web Services
    Linux System Administration
    Python
    C#
    C++
    JavaScript
    PHP
    HTML
  • $60 hourly

    • 4.9/5
    • (36 jobs)
    Freelance IT Specialist | Software Engineer Delivering innovative, high-performance systems for over 17 years. I'm focused on complex system development, I’ve built scalable, resilient solutions for both B2C and B2B environments. Specializing in Java, Spring Boot, Spring Cloud, Maven, PostgreSQL, MySQL, Cassandra, MongoDB, RabbitMQ, and Azure Service Bus, I also bring expertise in technologies like Docker, Dropwizard, Kafka, Zookeeper, AWS. I design architectures that handle evolving demands with ease, integrating third-party systems seamlessly. I know how to design and implement complex systems from scratch, and I excel at supporting and revamping existing (legacy) systems to breathe new life into them. I’m always eager to explore and research new software, evaluating it for potential use in optimizing solutions and driving innovation. A few things I value: Collaborative mindset: I thrive in team environments where communication, trust, and shared goals drive the project forward. My leadership style is about guiding and sharing knowledge, not controlling - empowering teams to innovate while staying focused on delivering results. Precision: I’m committed to delivering clean, maintainable code with robust documentation. From Javadocs to Confluence pages, I ensure clarity so that my work remains accessible and easy to evolve. Every part of the system is documented, covering CI/CD setups and module-specific details. Testing is my backbone: Quality control isn’t an afterthought - it’s built into every stage of development. My philosophy extends beyond unit tests, incorporating performance testing to ensure scalability under real-world conditions. Eternal learner and innovator: Technology doesn’t stand still, and neither do I. I’m constantly exploring new methodologies, frameworks, and ideas to bring fresh insights to my work. From AI-driven automation to future-proofing system architectures, I’m always on the lookout for ways to elevate what’s possible. Freelancer with passion: As a freelancer, every project excites me like it’s my first. I thrive in fast-moving environments and love collaborating with teams to create software that not only meets immediate needs but anticipates future challenges. I’m committed to delivering innovations that matter and clean code that future developers will thank me for. What sets me apart? I bring a holistic approach, ensuring systems are not just functional but scalable, adaptable, and maintainable. From designing complex microservice architectures to ensuring third-party integrations are seamless, I focus on building systems that deliver real, lasting impact. More than just code, I care about the people and businesses behind the software. The right technology can make workflows smoother, interactions richer, and systems smarter - and I’m passionate about helping bring those transformations to life. If you’re searching for someone who combines deep technical expertise with a drive for innovation and quality, I’m ready to partner with you to build the future. Let’s create something remarkable together. P.S. If you’ve made it to this line, the very end of this long read, just tell me and I’ll give you a discount for your patience!
    vsuc_fltilesrefresh_TrophyIcon Apache Tomcat
    Oracle PLSQL
    Spring Cloud
    Requirements Specification
    Software Architecture & Design
    J2EE
    Database Modeling
    Amazon Web Services
    Microservice
    RESTful Architecture
    SQL
    Java
    MongoDB
    Spring Framework
    Spring Security
    MySQL
    Hibernate
  • $50 hourly

    • 4.5/5
    • (4 jobs)
    Seasoned software engineer and engineering tech lead with a wide range of experiences across multiple industries, including Banking, Financials, Logistics, and Telecom. - Proficient in Java ecosystem, mainly focused on Spring and J2EE. - Participated in monolith and microservices design styles. - Working knowledge of DevOps toolchain (Maven, Git, Jira, Gitlab/Github) - Extensive experience in database and data-related operations (SQL, ETL, visualization) - I can help clients to maintain and improve legacy systems. Have the privilege of being one of the top 6% worldwide contributors to the StackOverflow community with a (7K+) reputation.
    vsuc_fltilesrefresh_TrophyIcon Apache Tomcat
    Software Debugging
    JavaScript
    Web Development
    SOAP
    Kubernetes
    Docker
    Full-Stack Development
    Microservice
    Spring Boot
    Database Design
    Java
    PostgreSQL
    Oracle Database
    RESTful API
    SQL
  • $35 hourly

    • 5.0/5
    • (59 jobs)
    I am a Software Developer and Architect with 15+ years of significant experience in building Java , .Net, C# , Ruby on Rails , Python and PHP applications. Currently, I am working as a Chief Technology Officer at InventorSoft, a software development agency specializing in Web development. Why hire me🧐: 📌 consulting in terms of technology stack and software architecture design 📌 building software development teams suitable for client needs. My latest achievement as a Software Architect: 🎖 helped five startups to build architecture design, choose appropriate technologies, and build development teams. Those companies become profitable and grow from year to year. 🎖 helped multi-billion oil company to automate business processes in the security department by creating the web platform My areas of expertise are: 🔹 Java, Spring Boot, Hibernate 🔹 Ruby on Rails 🔹 C#, ASP.NET, .NET Framework 🔹 PHP, Laravel Framework 🔹 Python, Django 🔹 AWS, Azure, GCloud, Docker, Kubernetes Latest projects: 💻 Observe - E-Learning video platform that automates remote face-to-face interaction between the interviewers/examiners. 💻 Cloud defense - simplifies the process of scanning source code for security vulnerabilities. 💻 Tourika - allows booking bus, hotel, activities, and tours from one platform. ➡️ Learn more about other projects on the InventorSoft portfolio. Keywords: Java, Backend, Developer, Fullstack, Web, Cross-Platform, Mobile, Application, AI, OpenAI, Service, App, Development, Engineer, Integration, Build, Website, Expert, Spring boot, MySQL, Development Team, Integrated, SaaS Platform, remote, Full-stack, Senior, Software, Client Management, GraphQL, API, .NET, Asp.net, Programmer, Technical Lead, Dashboard, MVC, Developers, ASP.NET, AspNetZero, core, software, MAUI, C#, Angular, .Net, Core, Principal, Performance, Scalability, Microsoft, Blazor, SQL, Server, Frontend, React, Ruby on Rails, RoR/React, front-end, Tailwind, feature, JavaScript, ROR, TailwindCSS, Technical Staff
    vsuc_fltilesrefresh_TrophyIcon Apache Tomcat
    Spring Framework
    Web Application
    PHP
    API
    Web Service
    Python
    Angular
    React
    Node.js
    Ruby
    Ruby on Rails
    ASP.NET
    C#
    JavaScript
    Java
  • $30 hourly

    • 4.3/5
    • (461 jobs)
    Securing the #1 Spot as a Swift Developer on Upwork Who Partners with Me? 🌱 Startups: Fueling growth with custom mobile apps. 🏢 Enterprises: Elevating operations through advanced mobile solutions. 🔧 Tech Experts: Collaborating on challenging tech projects. 📈 Marketing & Digital Agencies: Enhancing digital presence with sleek apps. Why I Stand Out? 💻 Mobile Tech Mastery: Dedicated exclusively to mobile technologies for cutting-edge solutions. 🛠️ Technical Insight: Offering deep consultations and feasibility studies. 🔄 LEAN Principles: Streamlining development for maximum efficiency. 🎨 Pixel-Perfect Designs: Crafting visually stunning and intuitive apps. 📱 Real Device Testing: Ensuring flawless performance. 🗣️ Clear Communication: Keeping you updated at every step. 🎥 Weekly Demos: Showcasing progress and maintaining alignment with your goals. Let's talk numbers: ✅ 1040+ Jobs | US$ 6M+ Revenue ⏳ 11,640+ Hours Worked 🏆 100% Success Rate | Top Rated Badge 🔁 40%+ Repeat Clients Explore my perfect feedback on Upwork for a taste of what I can bring to your project. Let’s create something exceptional together!
    vsuc_fltilesrefresh_TrophyIcon Apache Tomcat
    AI App Development
    AWS Development
    iPad App Development
    SwiftUI
    In-App Purchases
    JavaScript
    SQLite
    PostgreSQL
    Kotlin
    Mobile App Development
    Swift
    React Native
    iOS Development
    Flutter
    Android App Development
  • $30 hourly

    • 5.0/5
    • (17 jobs)
    Hello👋 I'm Gulshan Kumar. Experienced Full stack developer | UI/UX expert | System architect | Web developer. I have more than 7 years of experience in desiging ux/ui flow, to developing the same using the right tech stack and deploy it to make it live. with in few months on upwork, I have achieved : ✅ Top-rated Plus Freelancer on Upwork specialized in Full stack developement. ✅ 100% Job Success I have experienced in the following tech stacks. ✔ Java 8+ ✔ UI/UX design ✔ Spring (MVC, Security, Boot, Reactive), Laravel, Rest ✔ JavaEE ✔ Vue JS / React JS ✔ Java Script, php ✔ Apache Tomcat ✔ Hibernate, JPA, MySQL, MongoDB ✔ Micro Service Architecture Design ✔ System Design ✔ Devops Integration for CI/CD ✔ Unit/Integration testing ✔ Python/Django ✅ Project building and working processes I have used: ✔ Develop Restful web services using Springboot, Laravel. ✔ Project Architecture and Design. ✔Agile, Scrum, CI/CD. ✅ Facts about me ✔ Deadlines Oriented ✔ Critical Thinking ✔ Clean and Secure coding ✔ Analyzing problem solving ✔ Adaptability and Innovative ✔ Flexibility and Listening Skills JUST CONNECT AND GET YOUR BUSINESS ONLINE. FROM DEVELOPMENT TO DEPLOYMENT ALL I TAKE CARE.
    vsuc_fltilesrefresh_TrophyIcon Apache Tomcat
    Java
    HTML5
    TypeScript
    React Native
    Hybrid App Development
    PHP
    JavaScript
    MySQL
    React
    Vue.js
    GitHub
    Spring Boot
  • $70 hourly

    • 5.0/5
    • (44 jobs)
    I am TOP RATED, a strong Java and PHP developer from the United States. In the past, I worked for the biggest companies such as Oracle, Accenture, First Data, Barclays Bank, etc. I have 20+ years of experience in web development and I highly specialize in - Java (Java EE, Spring, Spring Boot, Spring Annotations, Spring MVC, Spring Security, JMS, Java Struts, Java Servlets, JSP, Hibernate, MyBatis, REST, ActiveMQ). - PHP (Laravel, WordPress) - Javascript (React, Angular, JQuery, Vue.js) - HTML, CSS, Bootstrap, Tailwind CSS - MySQL, Postgres, Oracle, NOSQL, MongoDB. - AWS, WildFly, Apache Tomcat I have built more than 200 systems and I am comfortable working with both existing and new projects. I helped hundreds of clients in their business and I am here to help you as well!
    vsuc_fltilesrefresh_TrophyIcon Apache Tomcat
    Web Service
    J2EE
    Vue.js
    AngularJS
    HTML
    React
    Laravel
    PHP
    SQL
    Microservice
    Java Persistence API
    Spring MVC
    Spring Boot
    Spring Framework
    Java
  • $25 hourly

    • 4.9/5
    • (9 jobs)
    I'm here to open new directions in my field and claim stronger skills. My stack: - PHP; - PHP Frameworks: Laravel - DBs: MySQL, MS SQL; - JavaScript, Vue.js, jQuery; - HTML, CSS; - Gulp, SASS, SCSS; - CMS: Wordpress, Joomla; - Payment gateway integration (Stripe API); - Google API, Sendgrid, Twilio API; - Docker, Composer, Laradock - GitHub, GitLab - Project management tools; Contact me, if you're looking for a long-term collaboration or if tasks which are needed to be done ASAP. Looking forward to hearing from you! Regards
    vsuc_fltilesrefresh_TrophyIcon Apache Tomcat
    WordPress
    CSS
    PHP
    JavaScript
    HTML
    MySQL
    Laravel
    Vue.js
    Twilio API
  • $50 hourly

    • 5.0/5
    • (4 jobs)
    Having 10 years of experience of commercial and enterprise application development mainly Java Spring applications with technology stacks such as: - Java Spring (Boot) framework - Hibernate ORM - Relational database (SQL Server, MySQL/MariaDB) - AWS or GCP Involved and developed various type of project and application such as: - IoT application - Desktop Point Of Sales - Mobile (Android) application - Company Project Calculation System - Database content migration and processing tool - Mobile Point Of Sales - Back End / Web Service / API & Web Scraping
    vsuc_fltilesrefresh_TrophyIcon Apache Tomcat
    AWS Lambda
    Spring Data
    Apache Kafka
    Spring Boot
    Hibernate
    Relational Database
    jQuery
    Data Scraping
    Responsive Design
    PostgreSQL
    MySQL
    Java
    Node.js
    Android App Development
    Spring Framework
  • $40 hourly

    • 4.9/5
    • (13 jobs)
    Hi everyone! I am a frontend developer experienced in Vue.js and Angular 2+. I am a self-disciplined and self-driven person willing to make eyecandy projects pleasant for their owners. My development skills are: ∼ Angular (js, 2+), NgRx, NGXS ∼ Vue.js, Vuex, Pinia ∼ Nuxt.js ∼ HTML/HTML5 ∼ CSS/CSS3 ∼ SASS/LESS/SCSS ∼ Responsive Layout, Pixel Perfect, Flexbox ∼ Bootstrap ∼ Angular Material ∼ Vuetify ∼ Element UI ∼ DevExtreme ∼ Tailwind ∼ Ant Design ∼ JavaScript (ES6+) ∼ jQuery ∼ Typescript ∼ RxJS ∼ Chart.js ∼ Zeplin, Figma, InVision I work with git (Github, Gitlab, Bitbucket), Jira, Trello, Asana, Slack, Microsoft Teams. I have experience with API services, HTTP+REST, JSON. So if you want your project to be treated well, feel free to contact me and discuss it.
    vsuc_fltilesrefresh_TrophyIcon Apache Tomcat
    Firebase
    Angular 8
    Angular 10
    Angular 9
    Vuex
    Angular Material
    Sass
    RxJS
    CSS 3
    HTML
    TypeScript
    Angular
    Vuetify
    JavaScript
    Vue.js
  • $39 hourly

    • 5.0/5
    • (4 jobs)
    I have been a web developer for over 10 years, and I'm passionate about writing clean, readable, and maintainable code. I graduated from the University of Constantine The Philosopher with a Master's degree in Applied Informatics. My main skills with which I can assist you are: - to build a custom website - build an API with your requirements - design a database - build a single page application (SPA) - or SPA with server-side rendering (SSR) - transfer your webpage design to HTML & CSS - build plugins or libraries for existing website I don't stop when an app just works. But it also has to look good, feel good and be pixel-perfect! My framework of choice is Laravel for backend and Vue or React for the frontend. On most projects, I'm responsible for every stage of the project. That ranges from the beginning to the end of the project. This ranges from setting up version control, VPS server, test server, workflow for parsing assets to coding the backend, frontend, and writing tests. Also, my additional responsibilities in previous companies were to train and mentor junior developers, that were on the same project as me and to take the role of the lead developer.
    vsuc_fltilesrefresh_TrophyIcon Apache Tomcat
    Jest
    Cypress
    Vuex
    Database Design
    Test-Driven Development
    TypeScript
    API Development
    Tailwind CSS
    Sass
    CSS
    HTML5
    Vue.js
    JavaScript
    PHP
    Laravel
  • $15 hourly

    • 4.9/5
    • (132 jobs)
    Hello! 👋🏼 I'm a Mobile App Developer with over 8 years of experience and a relentless drive for excellence. I specialize in creating immersive, user-centric mobile experiences that elevate brands and deliver tangible results. I am an expert in iOS SDK, SWIFT, Objective-C, Java, Kotlin, Android SDK, Android Studio, and many more. I have developed more than 25 apps so far. I follow AGILE and SCRUM as App Development strategies. I am adept at using various project management tools like Asana, Basecamp, and Trello. I also love debugging and resolving errors /issues in any App. Here is a list of domains on which I have worked: ---------------------------------------------------------- 1) E-commerce application 2) E-learning development 3) On-demand services 4) Food delivery application 5) Event-based application 6) Subscription-based application 7) Social media applications 8) Logistic applications 9) Chatbot application I'm eager to discuss your project and transform your ideas into impactful, professional mobile experiences. Schedule a call today, and let's bring your vision to life. 📅📞 Thanks, Baati Mittal
    vsuc_fltilesrefresh_TrophyIcon Apache Tomcat
    Git
    Material UI
    SwiftUI
    Bot
    AWS Development
    User Interface Design
    Firebase Cloud Firestore
    Firebase Realtime Database
    Apple Xcode
    Dart
    Flutter
    Java
    Firebase
    Kotlin
    Swift
  • $50 hourly

    • 4.4/5
    • (133 jobs)
    I am an advocate of clean coding, my favorite philosophy is Boy Scout rule "Always leave the Code cleaner than you found it". During free time, I like to spend time contributing to opensource, I already contributed to opensource projects like FlowiseAi, Jhipster Generator, Mongock and Bitnami Redis. I like to deep dive into computer science concepts. I am not the type of programmer who is contented to just copy-paste code from the internet. I prefer to analyze code to understand why it works the way it does. I believe in the saying, "Low-level programming is good for the programmer's soul". Skills and Technologies: • Languages: Proficient in Java, Node.js, Angular, Groovy, and Kotlin. Always updated with the latest trends and best practices. • Clean Architecture: A strong advocate of clean and efficient design, ensuring each project's robustness and scalability. • Front-End Development: Expertise in Angular, Vue.js, Nuxt, Tailwind, Bootstrap, crafting responsive and intuitive user interfaces. • Back-End Development: Skilled in Java, Node.js, and Groovy to develop server-side applications that are as resilient as they are expandable. • Cloud Computing: A solid track record with Amazon Web Services (AWS), designing and implementing scalable cloud solutions.
    vsuc_fltilesrefresh_TrophyIcon Apache Tomcat
    Generative AI
    LangChain
    Spring Boot
    Vue.js
    JHipster
    AWS Server Migration
    Docker
    Spring Framework
    Node.js
    TypeScript
    Angular
    Amazon Web Services
    Java
    MongoDB
    Kotlin
  • $25 hourly

    • 4.7/5
    • (21 jobs)
    A low-code platform is a type of software development environment that allows users to build custom applications without writing code from scratch. It provides pre-built templates, drag-and-drop interfaces, and other features that enable users with limited or no coding experience to create custom applications quickly and efficiently. Low-code platforms are often used to develop internal tools and processes, as well as for building customer-facing websites and apps. They offer several benefits such as: Speed: Low-code platforms allow users to create functional applications within a fraction of the time it would take to build using traditional coding methods. Cost-effective: Developing custom software using low-code platforms can be more cost-efficient than hiring in-house developers or outsourcing development work, as they require less specialized skills and resources. Customization: Low-code platforms offer a high level of flexibility, allowing users to create applications that meet their specific business needs without requiring extensive custom coding. User-friendly: With pre-built templates and intuitive interfaces, low-code platforms make it easier for non-technical users to build and manage applications, reducing the risk of errors or technical issues. Scalability: Low-code platforms are designed to accommodate growing business needs, allowing organizations to easily expand their custom software solutions as they grow. In summary, low-code platforms provide a convenient and efficient way for users with limited coding knowledge to develop custom applications, websites, and tools that meet the unique needs of their organization or customers. I can help you in Low Code Business Automation and Customized Web App development and System Integration. My 18 years of IT experience translates into QUALITY WORK with QUICK TURNAROUND TIME and COMPETITIVE BUDGET. Low Code, No Code Tools and technologies I am versed with: =============================================== - Camunda BPM - Joget BPM - Agile BPMS - Zapier - Airtable - Monday.com Web technologies for customized web development I am versed with: =============================================== -Ecom: Shopify Apps, APIs and Store Front Customization - Web: JavaFX, MERN, JAVA Spring Boot, Hibernate, AngularJS, ReactJS, Bootstrap, HTML5, CSS - Mobile: Android, - Messaging: AMQP, MQTT, RabbitMQ - API: REST/SOAP/XML - BPM: Joget, Camunda - BI Reporting: MS Access, Excel, Jasper Reports, ETL, OLAP, Pentaho, Spoon, Kettle - Maps: Google Map, MapBox, Geolocation, Open Street, QGIS, OpenLayers - Integration: Stripe, Google, Facebook - Databases: MySQL, PostgreSQL, PostGIS, MSSQL Server, MongoDB, ODBC - Cloud: Google/AWS/Azure
    vsuc_fltilesrefresh_TrophyIcon Apache Tomcat
    Back-End Development
    Front-End Development
    JavaFX
    Java
    Android
    AngularJS
    API Integration
    Business Process Management
    MySQL
    RESTful Architecture
    Spring Boot
    JasperReports
    NoSQL Database
    React
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