Hire the Best Java Remote Method Invocation (Java RMI) Specialists
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I am a passionate programmer. I'm an expert Java Full stack developer with 10+ years of professional experience and focused on OOP technologies. I have an extensive background in large-scale web based systems. Expertise in full Software Development Life Cycle (SDLC) including Software Architecture, Object Oriented programming, Data structure & Algorithm, Database Design, J2EE Security, Encryption, Javascript. Worked on various E-commerce sites, Banking domain. My Skill set: Backend: --JAVASE(JavaSwing,JavaFx) -- Java EE (JSP, JSF, Servlet, EJB, JMS, JDBC, JPA etc) -- Spring (MVC, IoC, security,Cloud, boot, data, and transaction) -- Hibernate -- Web services (REST/SOAP) Frontend: -- HTML5, Javascript, Jquery, DHTMLX -- ExtJs -- JQXGrid -- Angular 4 -- Angular 4 upper Databases: -- MySQL, DB2, SQL Server, Oracle -- MongoDB Build tools: -- Maven Version Controls: -- Git, SVN Reporting Tools: -- Itext, Apache POI,Swagger,Jasper Cloud: -- Amazon AWS (EC2, S3) Servers: -- Tomcat -- Wildfly Code Generator -- Jhipster Other Technologies -- Hazelcast -- Aerospike -- Solr -- Lucene -- Artemis(Active MQ) -- LDAP I have worked in team size from 10 to 20 developers so far. To establish further healthy relationship allow me to provide satisfying work with meeting your expectations successfully and has the potential to maintain a long term relationship. Clear code with suitable commenting. Good communication to fulfill your requirements.I am sure I can help you building effective solutions for your business and provide the best quality support of them.

Java & Spring Boot Architect | AI-Powered Backend Systems | 14+ Years Experience I am a Java & Spring Boot architect with 14+ years of hands-on experience building production-grade enterprise systems — from core banking platforms to AI-integrated microservices. I hold a BSc in Computer Science & Technology and now work as a dedicated full-time freelancer on Upwork, bringing the same rigour I applied in large fintech institutions directly to client projects. My core expertise spans Spring Boot, Spring Framework, and microservices architecture, with deep practical knowledge of SSO & Keycloak, Docker, DevOps pipelines, and GitLab CI/CD. I design systems that are secure, observable, and built to scale — whether that means integrating Kafka for event-driven flows, Flowable BPMN for workflow automation, or AWS for cloud infrastructure. Over the past year I have been heavily invested in the AI/LLM frontier: building Spring AI applications, wiring up MCP (Model Context Protocol) servers, running local models via Ollama, and implementing advanced patterns like tool calling, RAG pipelines, and AI agent workflows. I see AI not as a separate layer but as a first-class citizen inside enterprise Java backends. If you need someone who understands both the old-school reliability of enterprise Java and the new possibilities of AI-augmented architecture — let's talk. CORE STACK: Java · Spring Boot · Spring Framework · Microservices · REST API · Keycloak/SSO · Docker · GitLab CI/CD · DevOps · Kafka · Flowable BPMN · Oracle · PostgreSQL · AWS · Angular AI & EMERGING TECH: Spring AI · MCP · Ollama · Tool Calling · AI Agents · RAG Pipelines · pgvector · LLM Integration · OpenAI API · Prompt Engineering DOMAINS: Banking & Fintech · SWIFT/ISO 8583 · AML/CFT Compliance · NPSB/RTGS · ATM Switch · eKYC · Healthcare/EMR · Document Management

13+ years experienced in Java/J2EE | AWS Certified(SAA , DVA, CloudOps) | Java Professional Certified | Docker | Kubernetes | Rest API | Spring boot | Spring AI | Microservices| Spring Security | JPA | Oracle | Mysql | Process Mining | MCP | OpenAI | OPENAPI I React Js| ZK UI | Grafana | Prometheus | EJB Certified | 7 years in Financial or Banking application | Agile/Scrum | Lead Team.

Need a backend that reliably pulls data from external sources, processes it correctly, and stores it cleanly in your database? That's the kind of system I build. I'm a Java / Spring Boot developer focused on backend systems — REST APIs, database design, and integrations with external APIs. I've built services that fetch data from third-party APIs, apply custom business logic (filtering, transformation, deduplication), and persist the results into relational databases like PostgreSQL and MySQL — the kind of data-sync and integration work many backends depend on. I've also built multi-user systems with role-based access control, REST APIs for full CRUD operations, and relational schema design for resource-tracking applications. What I bring to a project: ✅ REST API design and development with Spring Boot ✅ External API integration — fetching, transforming, and syncing data into your database ✅ Database design with PostgreSQL, MySQL, and Oracle ✅ Clean, documented code that the next developer can actually understand ✅ Clear communication — I ask the right questions before writing a single line I'm early in my Upwork journey but not early in backend development — I focus on getting the fundamentals right: correct data handling, sensible architecture, and code that doesn't turn into a maintenance headache six months later. Happy to review your current API setup or requirements and share how I'd approach it — even before we agree on anything.

OCJP Certified Java Architect | Spring Boot | Microservices | AWS | Kafka | Camunda | 13+ Years Experience With 13+ years of professional experience in designing, developing, and deploying enterprise-grade applications, I help businesses build scalable, secure, and high-performance cloud-native solutions. My expertise spans Java, Spring Boot, Microservices Architecture, AWS Cloud, Kafka, Redis, Docker, Kubernetes, CI/CD, OAuth2, Keycloak, JWT, and Camunda BPM. Key Highlights: ✔ OCJP Certified Java Professional ✔ 12+ Years of Software Development Experience ✔ Microservices & Cloud-Native Architecture Specialist ✔ Banking & FinTech Domain Expertise ✔ RESTful APIs, Event-Driven Systems, and Distributed Architecture ✔ AWS Cloud Deployment & DevOps Automation ✔ Security Implementation with OAuth2, JWT, Keycloak, LDAP, and Okta Recent Accomplishments: ✅ Designed and implemented cloud-native microservices using Java, Spring Boot, Spring Cloud, Docker, and Kubernetes. ✅ Built FinTech and Banking solutions integrating payment gateways and remittance platforms, including Stripe, RIA, and Instant Cash Exchange House APIs. ✅ Developed high-performance event-driven architectures using Kafka and Redis for real-time processing and scalability. ✅ Automated deployment pipelines using Jenkins, Docker, Kubernetes, SonarQube, and Git-based CI/CD workflows. ✅ Implemented workflow orchestration and business process automation using Camunda BPM. AI-Assisted Development: I effectively leverage AI tools such as ChatGPT and GitHub Copilot to accelerate development productivity by 60–80% through: • Business rule analysis and API design • Schema and ORM modeling • Rapid endpoint generation • Code completion and refactoring • Automated code reviews and quality improvements • Technical documentation generation Core Technologies: • Java, Spring Boot, Spring Framework, Spring Cloud, Hibernate, JPA, Camunda, GraphQL, WebSockets • Kafka, RabbitMQ, Redis, Docker, Kubernetes • MySQL, Oracle, PostgreSQL, MongoDB, Elasticsearch • AWS (EC2, ECS, RDS, S3, IAM, SQS) • OAuth2, JWT, Keycloak, LDAP, Okta, Spring Security • React, Angular, TypeScript, JavaScript • Jenkins, Git, Maven, SonarQube, Jira I am passionate about building reliable, scalable, and secure enterprise solutions that deliver measurable business value. Let's discuss how I can help your team accelerate development, modernize architecture, and successfully deliver high-quality software solutions.

I help businesses stabilize, scale, and extend existing applications without costly rewrites. With 15+ years of experience, I specialize in Java (Spring Boot) and Laravel-based systems, focusing on bug fixing, performance optimization, API development, and long-term maintenance for SaaS and enterprise applications. If your application is slow, unstable, hard to maintain, or needs new features added safely — I can help. What Can I Help You With - Fixing critical bugs and production issues - Improving performance and database efficiency - REST API development and third-party integrations - Refactoring legacy Java / PHP applications - Secure authentication and role-based access - Ongoing maintenance and technical support Why Clients Trust Me - 15+ years building and maintaining real-world systems - $70K+ earned and 5,000+ hours on Upwork - Long-term contracts (1,000+ hours) with US & UK clients - Strong focus on clean, maintainable, and scalable code Technical Stack - Backend: Java, Spring Boot, Spring Security, Hibernate, JPA, PHP, Laravel - Frontend: Angular, React - Databases: MySQL, SQL Server - Tools: REST APIs, JUnit, Mockito, Git