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✅ 8+ Years of Java Development Experience ⚡ Full-Cycle Backend Development & Architecture ⚡ AI-Powered Development for Faster Delivery & Better Code Quality 👀 Click Invite or Hire for Scalable Java Backend Solutions Looking for a Java Developer who can build scalable backend systems, SaaS platforms, enterprise applications, and cloud-native solutions designed for long-term growth? For 8+ years, I have helped startups, SaaS companies, fintech businesses, AdTech platforms, and enterprise organizations build secure, scalable, and high-performance software using Java, Spring Boot, PostgreSQL, MySQL, Kafka, GraphQL, AWS, Docker, Kubernetes, and modern cloud technologies. From backend architecture and microservices development to legacy application modernization, API integrations, troubleshooting, cloud deployments, and AI-assisted engineering, I deliver production-ready solutions built to scale. 👉 WHAT YOU GET: ✔️ Java Backend Development & Software Architecture ✔️ Spring Boot Applications & Microservices ✔️ REST APIs, GraphQL APIs & Integrations ✔️ Cloud-Native Applications using AWS ✔️ AI-Assisted Development & Automation ✔️ Legacy System Modernization ✔️ Long-Term Support, Maintenance & Optimization 🏆 KEY ACHIEVEMENTS: ✔️ 8+ years building Java, Spring Boot, and enterprise backend applications ✔️ Built scalable SaaS platforms, fintech applications, AdTech systems, and enterprise software ✔️ Maintained and enhanced 15+ production microservices ✔️ Contributed to Adstrome, TrustArc, Acquia DAM, and Digi-Docket ✔️ Designed secure APIs, event-driven systems, and scalable architectures ✔️ Improved application performance through optimization and modernization ⚙️ CORE EXPERTISE: ✔️ Java, Core Java, Java EE, Spring Boot, Spring MVC, Spring Security ✔️ Hibernate, JPA, JDBC, MyBatis, ORM Frameworks, REST APIs, GraphQL APIs ✔️ Microservices Architecture, Apache Kafka, Event-Driven Systems ✔️ PostgreSQL, MySQL, Snowflake, Query Optimization ✔️ AWS, Docker, Kubernetes, Jenkins, Maven, Gradle, Git, GitHub, Bitbucket, Version Control Systems ✔️ Authentication, Authorization, RBAC, Multi-Tenant SaaS ✔️ ZK Framework & Enterprise Web Application Development 🛠 DEVELOPMENT & MAINTENANCE: ✔️ Web Application Development & Enterprise Software Development ✔️ Spring MVC & ZK Framework Application Development ✔️ Legacy Application Maintenance, Modernization & Application Upgrades ✔️ Feature Development & Application Enhancements ✔️ Bug Fixing, Root Cause Analysis & Production Support ✔️ Performance Bottleneck Analysis & Optimization ✔️ Memory Leak Detection & Resolution ✔️ Security Vulnerability & CVE Remediation ✔️ Third-Party API Integration & Business Workflow Automation ✔️ Performance Optimization & Scalability Improvements ☁️ CLOUD & DEVOPS: ✔️ AWS Cloud Services, Docker Containerization & Containerized Application Deployment ✔️ Kubernetes Container Orchestration for Scalable Cloud Infrastructure ✔️ Linux-Based Server Systems, Linux Server Administration & Linux Server Troubleshooting ✔️ Apache Tomcat Installation, Deployment, Monitoring & Performance Tuning ✔️ CI/CD Pipelines, Jenkins Automation, Git, GitHub, Bitbucket & Version Control Systems ✔️ Web Application Troubleshooting, Production Environment Support & Incident Resolution 🧪 TESTING & QUALITY: ✔️ JUnit, Mockito, Unit Testing & Integration Testing ✔️ Test-Driven Development & Automated Testing ✔️ API Testing, Debugging & Log Analysis ✔️ Root Cause Investigation & Production Stability ✔️ Code Quality Improvements & Maintainable Software Development ✔️ Regression Testing & Application Reliability Improvements 🤖 AI-ENHANCED ENGINEERING: ✔️ AI-Assisted Development & AI-Powered Coding Workflows ✔️ OpenAI API Integration, LLM Workflows & AI Automation ✔️ AI-Assisted Testing, Refactoring & Documentation ✔️ Faster Delivery Through AI-Enhanced Engineering 🏢 INDUSTRY EXPERIENCE: ✔️ SaaS Platforms & Enterprise Applications ✔️ AdTech & Programmatic Advertising ✔️ Fintech & Loan Processing ✔️ Privacy & Compliance Systems ✔️ Digital Asset Management ✔️ Multi-Tenant & White-Label Solutions 🚀 WHY CLIENTS CHOOSE ME: ✔️ 8+ Years of Java Development Experience ✔️ Enterprise SaaS & Microservices Expertise ✔️ Strong Spring Boot & Cloud-Native Skills ✔️ Scalable, Secure & Maintainable Solutions Whether you need to build a backend platform from scratch, scale an existing SaaS application, maintain a legacy system, resolve performance bottlenecks, remediate security vulnerabilities, implement microservices, modernize enterprise software, deploy applications on Tomcat or Linux-based server systems, integrate AI capabilities, or optimize application performance, I can help. Looking for a Java Developer, Senior Java Developer, Java Backend Developer, Spring Boot Developer, Java Architect, Backend Engineer, Enterprise Software Developer, API Developer, GraphQL Developer, AWS Developer, Cloud Engineer, Kafka Developer, Software Architect, Backend Architect, or Java Consultant?

Senior Java Developer | Spring Boot Expert | Microservices | AWS | AI-Assisted Development I help businesses build scalable backend systems, enterprise APIs, and cloud-native applications using Java, Spring Boot, Hibernate, Microservices, AWS, PostgreSQL, MongoDB, Kafka, and modern AI-assisted development tools. With strong experience in Java backend development, I specialize in: ✔ Java 8/11/17+ Application Development ✔ Spring Boot & Microservices Architecture ✔ REST API Development & Third-Party Integrations ✔ Hibernate / JPA / Performance Optimization ✔ PostgreSQL, MySQL, MongoDB ✔ Event-Driven Systems (Kafka, Messaging) ✔ AWS, Docker, Kubernetes ✔ Secure APIs (Spring Security, JWT, OAuth) ✔ Legacy System Modernization ✔ Full-Stack Development (Angular, Node.js) ✔ AI-Assisted Development using ChatGPT, Claude AI, and GitHub Copilot What I Deliver • Production-grade Java Spring Boot applications • High-performance backend APIs • Scalable microservices architectures • Enterprise integrations and data-driven systems • Performance tuning, debugging, and system optimization • Cloud-ready deployments on AWS Why Clients Hire Me I focus on clean architecture, maintainable code, and practical solutions not overengineering. By leveraging modern AI tools like ChatGPT, Claude AI, and GitHub Copilot, I accelerate development, improve code quality, generate documentation, and speed up debugging while ensuring every solution is thoroughly reviewed and production-ready. Whether you need: • A Spring Boot developer for a SaaS platform • A Java backend developer for APIs, integrations, or cloud applications • Help with microservices, performance optimization, or legacy modernization • A developer who combines deep engineering expertise with AI-assisted productivity I can help. I've worked on complex backend systems involving real-time event processing, enterprise integrations, database-intensive workflows, cloud-native deployments, and event-driven architectures. If you're looking for a reliable Java/Spring Boot expert who takes ownership, communicates proactively, and delivers scalable solutions on time, let's discuss your project.

Hi! I’m Rashu, an Expert Java Back-End Developer. Are you looking for a reliable, detail-oriented back-end developer who delivers high-quality, scalable, and secure solutions? With over 5+ years of hands-on experience in Java-based backend development, I specialize in building powerful server-side applications that drive performance and growth. 🔧 Technical Skills & Tools: 🖥 Backend Development - Java, Spring Boot, Hibernate, JUnit, RESTful APIs & Microservices Architecture ☁ Cloud & DevOps - AWS (EC2, S3, RDS) 💾 Databases & Version Control - SQL, MySQL, PostgreSQL Git, Bitbucket 🏥 Domain Experience: *Healthcare: Developed a complete Hospital Management ERP Software used for streamlining patient records, billing, pharmacy, and more. Banking: Worked on secure, transaction-heavy systems with robust authentication and compliance. *Voice Testing Applications: Built reliable and performance-oriented back-end components for voice-based testing platforms. ✅ Why Work With Me: *100% commitment to client satisfaction *Known for being detail-oriented, reliable, and deadline-driven *Clean, maintainable code with proper testing using JUnit *Strong communication skills and proactive problem-solving 📩 Let’s Get Started! Let’s build something great together. I’m here to bring your project to life with efficiency and precision. Send me a message and let’s talk about how I can help! **This is not a company or agency account. Only the profile name is of my firm's name but I am an Independent Freelancer and all the information is about me only.

Senior Software Engineer with 12+ years of experience in microservice applications using Java, Spring Boot, Spring WebFlux, cloud native application with AWS and Azure. Strong problem-solving and analytical skills, overseeing the full software development lifecycle from design to deployment worked on Transportation, E-Commerce, and Banking domain.

🏆 11+ years in Java and Spring Boot | I lead 7Span's Java practice | enterprise backends for FinTech, multi-tenant SaaS, and real-time systems | Official dotCMS Partner team I'm Akshay, a Java Team Lead and Solution Architect. I lead 7Span's Java practice, a senior team shipping Spring Boot microservices, REST and GraphQL APIs, and cloud-native systems on AWS. When you hire me, you are not getting one developer; you are getting a vetted Java team that runs backend, integrations, and DevOps in parallel. Most "Java developers" can write a CRUD API. The work I'm hired for is the harder layer: service boundaries that scale, data models that hold up under real load, and backends that survive the next round of features instead of a rebuild. Some of what I've built: 1. FinTech (Liquify): a real-time loans-against-mutual-funds platform, SEBI and RBI aligned. I architected the eligibility engine (live NAVs, fund types, lien rules), the CAMS and KFintech integrations and digital pledging, and the audit-ready admin for the full loan lifecycle. Eligibility checks in 10 seconds, approvals in as little as 15 minutes, disbursal within 24 hours. 2. Real-time (TestiQo): a high-concurrency online assessment platform. 100+ concurrent candidates with no downtime, 99.9% uptime in peak windows, with session isolation, real-time sync, and live proctoring. 3. Multi-tenant B2B SaaS: turned a single-tenant product into a full multi-tenant platform, per-org quotas and overrides, Stripe-automated billing, and a live database migration to the multi-tenant model, all without disrupting the running system. 4. AI on Java backends: co-architected a multi-agent recommendation engine (routing on user goals and metrics, Langfuse evaluation) wired into a live e-commerce backend. What I build: ‣ Java microservices & backend architecture: Spring Boot, Spring Cloud, Kafka, clean service boundaries, not a distributed monolith. ‣ FinTech & RegTech: lending, eligibility engines, payments, KYC/onboarding, compliance and audit-ready workflows. ‣ Multi-tenant SaaS: tenant isolation, subscription/billing (Stripe), role-based access, APIs built for scale. ‣ Real-time & high-concurrency: synchronized state, live sessions, event-driven pipelines (Kafka, WebSocket). ‣ Legacy Java modernization: Java 8 to 17/21, monolith to microservices, no downtime. ‣ Secure auth and identity: Spring Security, Keycloak, OAuth2, JWT. ‣ AI integration: LLM and multi-agent workflows on Java backends. ‣ Enterprise Java CMS: dotCMS (I'm a certified developer and 7Span is an Official dotCMS Partner) and Liferay. Why a certified Java team beats a solo freelancer: 🔹 Bandwidth: senior engineers run backend, integrations, and DevOps in parallel, so your timeline is not one person's calendar. 🔹 Coverage: sick days, time zones, and unexpected scope do not stall the project. 🔹 Accountability: version-controlled code, staging environments, and proper QA. 🔹 Backed by 7Span: an AWS-powered agency and Official dotCMS Partner with a strong Upwork track record. Industries I've delivered for: FinTech and lending, B2B SaaS, recruitment and assessment, e-commerce, real estate, healthcare, and education. Across 7Span's broader engineering work, the agency has delivered for global brands including Nestle, Dell, Pfizer, and Princeton University. 🤝 My promise: if Java or Spring Boot is the wrong tool for what you are building, I'll tell you in the first call. If it's right, I'll show you the cleanest path to a backend that scales. ☎️ Free 30-minute architecture or code review to start.

Your SaaS doesn't need another developer who just writes code—it needs someone who can understand your product, solve backend bottlenecks, and ship reliable features without breaking what's already working. I help startups and growing businesses build, improve, and maintain scalable backend systems and full-stack applications. Whether you're launching a new product or improving an existing one, I can help you: - Build production-ready REST APIs - Add new features to existing applications without introducing regressions - Optimize slow APIs and database queries - Debug complex production issues and eliminate recurring bugs - Integrate third-party APIs, payment gateways, and external services - Design scalable backend architectures for SaaS products - Build secure authentication and authorization systems (JWT/OAuth) - Improve application performance, reliability, and maintainability My primary stack includes Java, Spring Boot, Node.js, TypeScript, React, PostgreSQL, Docker, Redis, AWS, and modern API-driven architectures. I enjoy working with existing codebases, understanding business workflows, and turning ideas into production-ready software that scales. I believe clean architecture, clear communication, and predictable delivery are just as important as writing good code. If you're looking for an engineer who can take ownership, solve difficult backend problems, and build software that lasts, let's talk.