Hire the Best J2EE Developers
in Indonesia

I am a Senior Java Developer with experience since 2005. I have developed various Java projects in many industries. I'm also good with testing and quality assurance. Since 2012 I have worked with clients from Australia, Singapore, USA, Netherlands, Germany, Hongkong, and Greece. DETAILS: ✓Language: Java ✓Framework: Spring Framework (Spring Boot, Spring MVC, Spring-Security, Spring-WS, etc), Quarkus, Eclipse Vert.x, Play Framework, JHipster ✓Technologies & libraries: Hibernate/JPA, Web-Services (JAX-WS / SOAP, JAX-RS / REST, XML-RPC), Apache CXF, Jersey, SMPP, Apache Mina, Google Maps API (JS & Android), JSOUP, Mondrian/OLAP/OLAP4J, Apache Camel, Microservice Architecture, CloudSim, JWT (JSON Web Token), Apache Kafka ✓ Application Server: Tomcat, Jetty, Wildfly ✓ IDE: IntelliJ IDEA, Eclipse, Netbeans ✓ Database: MySQL, Oracle, PostgreSQL, MS SQL Server ✓ NoSQL DB: MongoDB ✓ Cache / In-memory software: Redis, Infinispan ✓ Payment processor: Braintree, Stripe, TokenEx (SecureNet, Payeezy, Worldpay US, Vantiv, MercuryPay) ✓ Front End: JSP, Thymeleaf, Velocity, HTML, CSS, JQuery, Bootstrap, AngularJS (1.x), Angular 2+, Highcharts, Ajax, JSON ✓ Build Tools: Maven, Gradle, Ant, SBT ✓ Mobile Notification: Google Cloud Messaging (GCM), Firebase Cloud Messaging (FCM), Apple ✓ Push Notification service (APNs) ✓ Test and code quality framework: JUnit, TestNG, SonarQube ✓ Reporting Tools: JasperReports ✓ Continuous Integration: Jenkins ✓ Collaboration Tools: JIRA, Asana, Pivotal Tracker, GitHub, Bitbucket, Slack ✓ Social Media / OAuth Integration: Facebook, Google ✓ Identity Management: Keycloak ✓ Authorization and authentication: Oauth2, OpenID, JWT ✓ Specification Documentation: Swagger / OpenAPI ✓ Containerization: Docker ✓ OS: Linux, Windows What I'm good for: ✓ Software/Back-End development ✓ Software design/architecture/solution ✓ Web application development ✓ System/business analyst ✓ Database design/architecture ✓ Software testing and quality assurance I'm available to hire up to 30 hours/week. I am looking forward to working with you! Thanks!

Q: Are you looking for React/Angular guy? A: Your search end here. Q: Are you loking for spring framework talented? A: No need to look other side. Q: Need someone with over 15 years experience A: You can count on me. Hi there You can call me Wiwit, I'm from Indonesia I started my career as a web developer in 2010 and started working on Upwork from 2015. I have good experience in developing web based enterprise solutions using Java technologies like J2EE, JSF, REST, SOAP, Hibernate and Springboot Proficient with angularjs, reactjs and good experiences with any popular js family. I also very good for debugging and tracking. I'm looking for customers for long-term cooperation. I would like to offer you my skills and experience to solve your issues.

Hi...!, I’m Hady. Thanks for stopping by. Nice to meet you! I help you to build scalable software products that deliver real business value. With 10+ years of professional experience, I've worked in fintech, banking, e-commerce, and enterprise environments, designing and developing systems that serve thousands of users while maintaining performance, reliability, and security. My expertise includes: ✅ Backend Development • Java • Spring Boot • REST APIs • Microservices • PostgreSQL • MySQL • Redis • RabbitMQ • Authentication & Authorization • API Integrations ✅ Frontend Development • React • Next.js • JavaScript • TypeScript • Tailwind CSS • Responsive UI Development ✅ Mobile Development • React Native ✅ Cloud & DevOps • AWS • Google Cloud Platform • Docker • CI/CD Pipelines • Linux Servers Recent achievements: • Built banking and fintech features adopted by 30,000+ users • Improved production API performance by 30% • Reduced onboarding time by 60% through technical documentation and developer enablement • Delivered multiple production systems across web, mobile, and backend platforms What clients appreciate most about working with me: ✔ Clear communication ✔ Fast delivery ✔ High-quality, maintainable code ✔ Proactive problem solving ✔ Long-term thinking If you're looking for an engineer who can own features end-to-end and deliver production-ready solutions, let's discuss your project. Best, Hady

Hello, I have 18+ years of experience working in ICT domain. Currently working as developer (Java, Node.js) and DevOps. Here's the shortlist of my experiences: Backend (Java): Spring Boot, JPA, Security, Batch. Backend (Javascript): Node.JS, ExpressJS, NestJS. Serverless: AWS Lambda. Frontend: Thymeleaf, Vue.js, React.js. Charts: Amcharts, Charts.js, D3.js Database: PostgreSQL, MySQL, Derby, MongoDB, DynamoDB. AWS: EC2, VPC, RDS, S3 Elastic Beanstalk, Cognito, SES, CloufFormation, ECS, ELB. Virtualization: Docker, docker-compose. Scripting: Perl, Shell/Bash, AWK. Payment gateway; Stripe, Braintree. Tools: Maven, Gradle, Git, IntelliJ, Selenium. Linux: Debian, Ubuntu, RedHat, CentOS. CI/CD: CodePipeline, Jenkins, Circle CI, Codemagic. Protocol & Spec: LDAP, ASN.1, Diameter, Radius, SMPP, HTTP (REST, SOAP). Other knowledge: Twilio Video API, Spark, Kafka, FreeRadius, Captive Portal, I also would love to support you to design an end-to-end solution and lead your development team to achieve your business goals. Thank you for visiting my profile. Feel free to contact me even to say hi or want to discuss about your project or idea. I hope it worth your time.

Hi there 👋 I am a senior software engineer with more than 18+ years of experience in the industry with a can-do thinking in mind. As a fullstack developer heavy on the backend, I have a wide range of expertise in the backend, frontend, devops, and system design. I am proficient with Java Spring Boot and familiar with Spring Cloud, Spring AI, Spring Data, Micronaut, Hibernate, JUnit, Mockito, AssertJ, K6, Thymeleaf, React, Vue, Angular, Tailwind, Bootstrap, Docker, Kubernetes, Helm, GCP, AWS, Azure and VPS. Using various servers like Postgres, MySQL, Oracle DB, SQL Server, MongoDB, Redis, Elasticsearch, Vespa, Sqlite, BigQuery, Tomcat, Jetty, Undertow, Netty, Nginx, Apache, Node, ActiveMQ, RabbitMQ, Kafka, PubSub, Auth0, Keycloak, LDAP, Eureka, Consul, Vault, Sleuth, Resilience4j, Minio, S3, Alfresco, Jenkins, Stripe, Twilio, OpenAI, Azure AI, Gemini AI, and OpenRouter AI. Using applications like GitHub, GitLab, BitBucket, Jira, Redmine, Trello, Notion, Figma, SSH, TMux, Git, NVim, Copilot, ChatGPT, Gemini, Claude, Codex, VSCode, Cursor, Antigravity, IntelliJ, DBeaver, Insomnia, Postman, and Chrome. The most common projects I work with are API services, web applications, enterprise applications, and AI platform integration using architecture like monolith, modulith, and microservice, using protocols like REST, GraphQL, SOAP, gRPC, JSON-RPC, XML-RPC, WebSocket, Webhooks, Polling, OpenAPI, and AI Platform Integration API with HITL (Human in the loop) good practices. I am open to discussion and project work. Feel free to hire me. Thanks, Warmly Regard. -- a full-time freelancer with one active client currently --

Results-driven system developer with more than 10 years of development experience using java. Having a strong technical background who possesses self-discipline and the ability to work with the minimum of supervision. Able to play a key role throughout the software development / support life cycle of a project to ensure the quality solutions meet business objectives. Also highly accomplished with a verifiable track record in fields such as analysis and gathering, business process mapping and the development of interactive prototypes.