Hire the Best J2SE Specialists in Pune, IN

I'm a Full-Stack Java Developer with over 8+ years of industry experience. I excel in all aspects of Java application development, from design and development to deployment. I have a proven track record of building robust and Scalable applications across diverse domains. My Expertise Full-Stack Development: Java: Core Java, multithreading, OOP, Spring, Hibernate, Struts, J2EE. Frameworks & Libraries: Spring, Hibernate, JavaFX, Apache Struts. Microservices Architecture: Spring Cloud, Netflix OSS, service discovery, load balancing, tolerance mechanisms. Web Development: JSP, Servlets, RESTful APIs, Angular, React, HTML, CSS, JavaScript. Databases: MySQL, PostgreSQL, MongoDB, Redis. Testing & Debugging: JUnit, Mockito. I also use GitHub Copilot and Claude Code to deliver the best solutions. ✔ LLM integrations (OpenAI, Claude, etc.) ✔ AI-assisted workflow automation ✔ Prompt engineering & optimization ✔ RAG based enterprise search solutions ✔ AI code acceleration using tools like Cursor ✔ Designing AI-ready Microservices architecture Java Solution Architect: Designing scalable solutions with Java, Spring, Hibernate, and microservices. DevOps: Cloud setup, infrastructure management, CI/CD. Proficient in AWS (Lambda, EC2, S3, Redshift, SageMaker, Cognito) and GCP (VMs, Google cloud storage). Domain Experience: Insurance, finance, healthcare, e-learning, e-commerce, travel, real estate, logistics, supply chain, social networking, and education. CRM and ERP systems.

I build backend systems for industries where mistakes are expensive — banking, healthcare, cross-border regulatory compliance. 14 years, Java and Spring Boot throughout. What I'm doing now: integrating LLM and RAG features into enterprise Java systems. Most people building RAG are Python-first and have never touched a Spring Boot estate. Most Java engineers haven't shipped retrieval. I've done both. I built and operate a production AI assistant on Java 21 and Spring Boot 3.x — chunking and embedding pipelines, pgvector with HNSW indexing, three answer routes with source grounding, Spring Security JWT, Testcontainers integration tests, running on GCP App Engine. Also: Spring Boot secure code review and remediation of security audit findings. OWASP-aligned, including AI-generated code. Stack: Java 21, Spring Boot 3.x, Spring AI, Spring Security, JPA/Hibernate, PostgreSQL, pgvector, Kafka, AWS, GCP, React, TypeScript, Docker, CI/CD. 100% Job Success, Top Rated Plus, 3,000+ hours delivered.

I have 10+ years Java/J2EE development experience in all java technologies including core java, API integration, swing, ESB, spring mvc, jsp, struts, web services, tomcat, xml, etc

I delivers excellence and certainty across all my enterprises. I value your Business. From concept to reality I believe I can take you to.

I'm Vishwa, a results-driven software engineer with 5+ years of experience building scalable backend systems, automating workflows, and migrating enterprise applications to the cloud. I specialize in Java, Spring Boot, AWS, and SQL, and I thrive on solving complex problems with clean, efficient code. 💡 What I Do Best: • Backend Development: Architecting robust REST APIs and microservices using Java, Spring Boot, Maven, and JPA. • Cloud Engineering: Migrating legacy systems to AWS, implementing CI/CD pipelines with CDK, and securing applications with Vault. • Automation & Testing: Saving hundreds of manual hours with Selenium-based automation and ensuring reliability with JUnit & Mockito. • Performance Optimization: Upgrading systems (Java 11 → 17, Spring Boot 2 → 3) for better speed, security, and scalability. • UI Integration: Building responsive frontends with React.js and integrating seamlessly with backend services. 🏆 Highlights: • Automated credentialing workflows saving 200+ hours of manual effort. • Migrated and modernized enterprise apps for Mastercard, Barclays, and Principal Global Services. • Winner of Star of the Quarter and Best Mentee awards for outstanding contributions. • Certified in AWS Development, Java Programming, and SQL. 🚀 Why Work With Me: Even though I’m new to freelancing, that gives you a unique advantage—this project means everything to me. I’ll work harder than anyone else to deliver exceptional results because earning a 5-star rating is my top priority. You’ll get my full focus, energy, and commitment to quality, reliability, and clear communication. Whether you're launching a new product, optimizing legacy systems, or scaling to the cloud, I bring hands-on experience, proactive collaboration, and a passion for clean architecture. Let’s build something reliable, secure, and future-proof.

I build scalable, high-performance backend systems that handle real-time data and production workloads. With 10K+ earnings, 900+ hours, and 5★ client feedback, I help startups and enterprises develop reliable backend services using Java and Spring Boot. 💡 What makes me different: I don’t just write APIs — I design systems that scale, perform, and are easy to maintain. 🔹 Core Expertise: - Spring Boot REST API development - Microservices architecture - Real-time systems using WebSockets - Event-driven systems with Kafka - Secure authentication (JWT, OAuth2) - Database design (MySQL, PostgreSQL, Hibernate) - Performance optimization & bug fixing 🔹 Proven Experience: - Built backend systems for banking & fintech applications - Developed real-time data systems (WebSocket + Kafka) - Delivered production-grade microservices architectures - Completed 14+ projects with consistent 5★ ratings 🔹 Selected Work: - Real-time stock system (live updates using WebSockets) - Spring Boot microservices backend (serverless architecture) - JavaFX + backend integrated systems 🔹 Why clients trust me: ✔ Clean, production-ready code ✔ Clear and fast communication ✔ Reliable delivery & long-term support Available: 40hrs/week Hourly Rate: $15–20 (flexible for long-term projects) If you need a backend engineer who understands scalability, real-time systems, and production challenges — let’s discuss your project.