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📢 Available for New Projects 📢 Hi, I'm 𝗔𝘃𝗻𝗲𝗲𝘁, a Senior Java Developer and Technical Lead with 𝟭𝟰+ years of experience building enterprise software for 𝗙𝗼𝗿𝘁𝘂𝗻𝗲 𝟱𝟬𝟬 companies across 𝗳𝗶𝗻𝘁𝗲𝗰𝗵, 𝗵𝗲𝗮𝗹𝘁𝗵𝗰𝗮𝗿𝗲, 𝘁𝗲𝗹𝗲𝗰𝗼𝗺𝗺𝘂𝗻𝗶𝗰𝗮𝘁𝗶𝗼𝗻𝘀, 𝗮𝗻𝗱 𝘁𝗮𝘅 𝘁𝗲𝗰𝗵𝗻𝗼𝗹𝗼𝗴𝘆. I specialize in designing scalable backend systems with Java and Spring Boot while also delivering modern full-stack applications using React and Angular. I currently work on Canada's online tax platform at 𝗛&𝗥 𝗕𝗹𝗼𝗰𝗸 𝗖𝗮𝗻𝗮𝗱𝗮, where I design and develop cloud-native applications, microservices, secure APIs, authentication systems, and production-grade integrations used by thousands of users. I enjoy solving complex engineering problems, improving application performance, and building software that's easy to maintain and scale. I communicate clearly, take ownership of projects, and focus on writing clean, production-ready code rather than quick fixes. Whether you're launching a new product or improving an existing platform, I can help you deliver reliable software faster. ### 𝗪𝗛𝗔𝗧 𝗜 𝗛𝗘𝗟𝗣 𝗪𝗜𝗧𝗛 ✔️ Enterprise Java Applications (Spring Boot, Microservices, REST APIs) ✔️ Full-Stack Development (React, Angular, TypeScript) ✔️ Legacy Application Modernization & Performance Optimization ✔️ Cloud-Native Development (Azure, AWS, Docker, Kubernetes) ✔️ Authentication & Security (OAuth2, JWT, Auth0) ✔️ Third-Party Integrations, Payment Systems & Enterprise APIs ✔️ System Design, Solution Architecture & Technical Leadership ✔️ AI-assisted Software Development using GitHub Copilot and ChatGPT Clients appreciate my ability to understand complex business requirements quickly, communicate proactively, and deliver maintainable solutions that continue performing long after deployment. ### 𝗦𝗣𝗘𝗖𝗜𝗔𝗟𝗧𝗜𝗘𝗦 Java, Spring Boot, Microservices, REST APIs, React, Angular, TypeScript, PostgreSQL, Docker, Kubernetes, Azure, AWS, OAuth2, JWT, Auth0, System Design, Enterprise Architecture, Cloud Development, Full-Stack Development, AI-assisted Software Development. ### 𝗠𝗬 𝗦𝗧𝗔𝗖𝗞 𝗕𝗮𝗰𝗸𝗲𝗻𝗱: Java, Spring Boot, Spring Security, Hibernate, REST APIs, Microservices 𝗙𝗿𝗼𝗻𝘁𝗲𝗻𝗱: React, Angular, TypeScript, JavaScript 𝗖𝗹𝗼𝘂𝗱 & 𝗗𝗲𝘃𝗢𝗽𝘀: Microsoft Azure, AWS, Docker, Kubernetes, Azure DevOps 𝗗𝗮𝘁𝗮𝗯𝗮𝘀𝗲𝘀: PostgreSQL, MySQL, SQL Server 𝗧𝗼𝗼𝗹𝘀 & 𝗜𝗻𝘁𝗲𝗴𝗿𝗮𝘁𝗶𝗼𝗻𝘀: Auth0, Stripe, Azure Service Bus, Git, CI/CD ###💡𝗪𝗛𝗬 𝗛𝗜𝗥𝗘 𝗠𝗘 (𝗪𝗛𝗔𝗧 𝗪𝗜𝗟𝗟 𝗬𝗢𝗨 𝗚𝗘𝗧?) ✅ Faster time-to-market → I deliver production-ready APIs, admin panels and integrations so you can start generating value sooner. ✅ Less risk, more reliability → solid architecture, clean code, and production-hardened practices. ✅ Real business integrations → payments, digital signing (Digio), PDF workflows (iText), analytics & notifications. ✅ Maintainable systems → I write code your team can extend, not hacky quick fixes you’ll regret. ✅ Focus on ROI → features prioritized by impact, so every sprint moves business metrics. ### 𝗥𝗘𝗔𝗗𝗬 𝗧𝗢 𝗕𝗨𝗜𝗟𝗗? Whether you need a senior engineer to architect a new platform, modernize an existing application, or solve difficult production issues, I'd be happy to help. Let's discuss your project and build software that's scalable, secure, and built to last.

Hi, I’m a Senior Full Stack Developer with 8+ years of experience building scalable, secure, and high-performance web applications. I specialize in Java, Spring Boot, React, Angular, AWS, and modern cloud-native architectures, helping businesses transform ideas into reliable, production-ready software. Over the years, I’ve delivered enterprise applications across healthcare, finance, and business automation domains. My expertise spans backend development, modern frontend frameworks, cloud deployment, API integrations, and system architecture. Core Skills • Java, Spring Boot, Hibernate, JPA • React, Angular, TypeScript, JavaScript • REST APIs, Microservices, GraphQL • AWS (Cognito, EC2, S3), Docker, Kubernetes • MySQL, PostgreSQL • Spring Security, OAuth2, JWT Authentication • AI/LLM Integrations & Workflow Automation (n8n) • Xero, Sage & Third-Party API Integrations I have extensive experience designing scalable REST APIs, modernizing legacy applications, integrating cloud services, and building secure authentication systems. I’ve also led engineering teams, mentored developers, conducted code reviews, and driven technical decisions for enterprise-scale projects. I focus on writing clean, maintainable code, communicating clearly, and delivering high-quality solutions on time. Whether you need a complete full-stack application, backend APIs, frontend development, cloud integration, or ongoing technical leadership, I’m ready to help.

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.

With 18+ years of experience, I specialize in building robust, scalable, and high-performance Java-Spring applications, as well as modernizing and optimizing existing systems. My expertise spans end-to-end development, architecture redesign, performance tuning and bug fixing. eCommerce Expert: 10+ years specializing in SAP Hybris/Commerce Cloud and IBM WCS Technical Depth: Hands-on experience with Spring Microservices, Cloud architectures (GCP), and modular application design I deliver reliable, high-quality solutions with a focus on stability, client satisfaction, and lasting professional relationships. Hands-on experience with the following tools and frameworks: Languages & Frameworks - Java 8/11/17/21 - JSP, Servlet - Spring MVC, Spring Boot, Spring REST, Spring Batch, Spring JPA, Spring Security) - XML/XSL - Struts 1.2 - EJB 2.0 / 2.1 / 3.0 - JSF JPA - Hibernate - MyBatis Frontend - React Js - Angular eCommerce Platforms - IBM WebSphere Commerce Server (WCS) - SAP Hybris Commerce cloud Messaging & Streaming - Apache ActiveMQ - Apache Kafka - Apache RabbitMQ Application Servers - WebLogic - JBOSS - Apache Tomcat Databases - Oracle - DB2 - MySQL - MongoDB - Postgres - SQL Server Reporting - iReport - JasperReports Search - Apache Solr - ElasticSearch Cache - Redis - Memcached Payment Integration - CyberSource Scheduling - Quartz Scheduler Build, Logging - ANT - Gradle - Maven - Log4j Code Quality - SonarQube - PMD - CheckStyle - FindBugs/SpotBugs - JaCoCo - Cobertura DevOps Tool - Git/GitHub - CVS - SVN - IBM ClearCase - Jenkins - Docker Web Services - Apache Axis - SOAP - WSDL API testing and collaboration tool - Postman - Swagger Testing Framework - JUnit - Groovy - Mockito Feature and Bug Tracking - Trackit Record - JIRA - Rally IDEs & Development Tools - Eclipse - IntelliJ - IBM RAD - TOAD - SQL Developer - Cygwin - Putty - JMX Console Looking forward to collaborating! Thanks & Regards, Sanjay

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 bring over 10+ years of expertise in Java, Spring Boot and Cloud technologies. I have consistently delivered robust, scalable, and maintainable software solutions. My passion lies in tackling complex challenges head-on and transforming them into elegant, efficient optimize code. Whether you are looking to build a new application from the ground up, optimize an existing system or solve a specific problem, I bring a wealth of experience and a results driven perspective to ensure your project's success. Let's use Java to make your vision a reality, together. Key Technologies: ✅ Java 8 to 21 ✅ Spring MVC, Spring Boot, Spring Cloud Microservices, Spring Security (JWT, OAuth 2.0) ✅ Hibernate, JPA, JDBC ✅ Restful API, GraphQL ✅ Desktop application: JavaFx ✅ Spring Batch, Scheduler ✅ Frontend: JSP, Thymeleaf ✅ Relational DB: MySQL, PostgreSQL, Oracle ✅ NoSQL DB: MongoDB, Elasticsearch ✅ DB Migration: Liquibase ✅ Asynchronous Messaging: Apache Kafka, RabbitMQ ✅ Build Tool: Apache Maven, Gradle ✅ Version Controller: Git, GitHub ✅ Testing with Junit, Mockito ✅ API Documentation: Swagger UI ✅ Architecture: Monolithic, Microservice ✅ CI/CD Pipeline: Jenkins ✅ Containerization: Docker ✅ Orchestration: Kubernetes ✅ Cloud: AWS, GCP ✅ Monitoring Tools: Log4j, Slf4j, Datadog ✅ Code Quality Tools: SonarQube, Black Duck, Harbor, SecHub Scan ✅ Performance Testing Tool: JMeter ✅ Server: Apache Tomcat ✅ Realtime Scheduler: Quartz ✅ API Integration (Office365, Twilio) ✅ Libraries: Apache POI ✅ Agile Methodologies: Jira, Confluence, Scrum, Sprint Planning, Standup, Retrospectives ✅ Business & Technical Analysis: Requirements Gathering, Risk Analysis, Technical Design, Application Modeling, Implementation Planning and Support Favorite Topics: ⭐ Problem Solving Ability. ⭐ Provide Efficient Optimized Solutions. ⭐ Maintaining Good Quality Code. ⭐ Accepted Challenges That Allows Me to Learn New Skills. ⭐ Test Driven Development. ⭐ Always Prioritize Security Aspects. ⭐ Build automation. Domain Expertise: ✅ Manufacturing ✅ E-Commerce ✅ Education Services ✅ Applicant Tracking System (ATS) ✅ Customer Relationship Management (CRM) Let’s Connect ! 🎉 If you’re looking for a dedicated backend Java developer who can deliver results, I’d love to discuss your project further. Feel free to reach out, and let’s create something amazing together! Thank You