Hire the Best Spring Boot Freelancers
in Indonesia

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 --

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

I’m a Java / Spring Boot Backend Developer specializing in REST APIs, third-party integrations, and production backend systems. I have experience building, maintaining, and improving backend applications using Java, Spring Boot, PostgreSQL, JPA/Hibernate, Redis, and Docker. I also work with Vue.js when frontend development is required. I can help you with: - Building REST APIs and backend services with Java & Spring Boot - Integrating third-party APIs and external platforms - Implementing OAuth2 and authentication integrations - Designing and optimizing PostgreSQL databases and SQL queries - Debugging production issues and fixing existing applications - Maintaining and modernizing existing Java/Spring codebases - Developing Vue.js frontend features when needed Tech stack: Java, Spring Boot, Spring Framework, JPA/Hibernate, PostgreSQL, SQL, REST APIs, OAuth2, Redis, Docker, Maven, Git, JUnit, Vue.js, JavaScript/Typescript. I’m comfortable working with existing production codebases, understanding established architecture and patterns, debugging complex issues, and implementing changes without unnecessarily rewriting working systems. I focus on clean, maintainable code, practical solutions, and clear communication. Whether you need a new Spring Boot API, third-party integration, bug fix, database optimization, or help maintaining an existing Java application, I’d be happy to help.

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

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!