Hire the Best IBM WebSphere Developers
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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 (WCS) - SAP Hybris Commerce 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

If your IBM i (AS400) or Mainframe system runs mission‑critical operations, you need modernization without risk I help organizations stabilize, modernize, and integrate legacy IBM i / Mainframe applications while preserving uptime, performance, and business logic. My approach focuses on incremental, low‑risk modernization—extending system life while enabling web, API, cloud, and AI‑driven innovation. With deep hands‑on experience across RPG, COBOL, Mainframe technologies, EDI integrations, and modern web stacks, I provide senior‑level ownership from assessment through production support. What I Bring IBM i / AS400: IBM i (AS400), iSeries, IBM Power Systems (V5R3–V7R5) — system modernization, application migration, performance optimization, and production stability. RPG & ILE: RPG Free, RPGLE, SQLRPGLE, RPG II–IV, CLLE, ILE — legacy refactoring, modularization, DB2 optimization, DDS‑to‑SQL migration. COBOL & Mainframe: COBOL, NetCOBOL, Fujitsu COBOL, CICS, JCL, DB2, VSAM — mainframe modernization, batch migration, performance tuning, controlled legacy transformation. Integration & Modernization: AS400 green‑screen to web (Profound UI, LANSA, SYNON, Rocket Aldon), APIs, EDI (ANSI X12, EDIFACT), ERP & Manhattan WMS integration, ESB, JSON, hybrid/cloud modernization, Angular & React frontends. AI‑Assisted Modernization: AI‑based code analysis, documentation, refactoring, anomaly detection, and batch/workflow automatio Services AS400 & Mainframe Modernization | RPG & COBOL Migration Green Screen to Web Conversion | EDI & API Integration DB2 & Data Migration | Production Support & Maintenance Skills & Technologies Languages: RPG, RPGLE, RPG Free, COBOL, NetCOBOL, JCL, SQL, Python, Java, PHP Databases: DB2/400, IBM Db2, VSAM, PostgreSQL, MS SQL Tools: Profound UI, LANSA, SYNON, Presto, Rocket Aldon, RDz, Eclipse Source Control: Aldon, Turnover, Implementer, Endevor, Git, SVN Platforms: OS/400, IBM i, AS400, IBM Power Systems Infor & JDE Integration: Experience integrating IBM i / AS400 systems with Infor (LN, M3) and JD Edwards (JDE)—supporting data migration, interface development, batch jobs, APIs, and EDI‑driven business workflows. Domains- Banking | Retail | Manufacturing | Insurance | Healthcare | Life Sciences | E‑Commerce | Defense If your IBM i / AS400 or Mainframe environment is critical to revenue, let’s modernize it strategically, with stability and measurable ROI. Click “Hire Me” or send an invite to discuss your project. Keywords IBM i Modernization | AS400 Modernization | RPG Modernization | RPG Free | RPGLE | COBOL Modernization | NetCOBOL | Fujitsu COBOL | Mainframe Modernization | Green Screen Modernization | IBM i Web Enablement | RPG to Java | RPG to .NET | DB2 Migration | ERP Integration | Manhattan WMS | EDI Integration | AI Legacy Modernization | IBM Power Systems | API Integration | Legacy System Transformation |

Top Rated on Upwork | 100% Job Success Score | 18+ clients served I design and build backend systems that handle real production loads — scalable microservices, high-throughput REST APIs, and cloud-native Java architectures engineered for reliability and growth. I bring experience working on production-grade applications at SmartBear, building systems used in real-world environments with a strong focus on performance, scalability, and reliability. What I can help you with: 🔹 Scalable backend development — Java, Spring Boot, Microservices 🔹 REST API design, third-party integrations & payment gateways 🔹 Performance optimization — reduce latency, improve query speed & scalability 🔹 Microservices architecture & system design 🔹 CI/CD setup, Docker, code quality & API efficiency Core Technologies: 🔹 Backend — Java, Spring, Python 🔹 Databases — MySQL, PostgreSQL, MongoDB, Redis 🔹 Cloud & Deployment — AWS (EC2, S3, Lambda, RDS), Docker, CI/CD Every system I build is designed to be maintainable, scalable, and production-ready from day one. If you need a backend engineer who delivers results — let's talk.

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 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

🌟 Top Rated Plus 🌟 Oracle Java Certified 🌟100% Job Success Score 🌟 200K+ earned 🌟10,000+ hours of hands-on experience Hi, I’m Ankit Jain – a highly skilled software developer with expertise in building end-to-end solutions that drive business transformation. With over 10+ years of experience, I have worked across a diverse range of industries, delivering solutions in AI, cloud architecture, microservices, blockchain, mobile applications, and enterprise systems. I excel in turning complex requirements into robust, scalable applications that improve efficiency, reduce costs, and enhance user experience. 💻 Technical Expertise * Languages & Frameworks: Java, Spring Boot, Hibernate, Angular, React, Micronaut, REST APIs, GraphQL *Cloud & DevOps: AWS (Lambda, Fargate, API Gateway, S3, Cognito), Azure, Docker, Kubernetes, Jenkins, GitLab CI/CD *AI & Blockchain: OpenAI (GPT-3.5, GPT-4), Blockchain (Web3J, Smart Contracts, IPFS), Azure Open AI *Mobile & Web Development: React, Angular, Spring Boot *Database: PostgreSQL, MySQL, MariaDB *Messaging & Async Systems: Apache Kafka, SQS, SNS *Payment Gateway Integrations: Stripe, Razorpay, Braintree *Testing: JUnit, Mockito, TestRestTemplate, MockMVC *Tools: IntelliJ, Eclipse, Git, Maven, Tomcat, Atlassian Suite (Jira, Confluence, Bamboo) 🔧 Key Strengths *End-to-End Expertise: Proven experience in designing, developing, and deploying scalable microservices that power enterprise-grade solutions, from backend architecture to frontend interfaces and mobile applications. *AI & Blockchain Integration: I integrate cutting-edge AI technologies like OpenAI’s GPT-3.5 and GPT-4 into systems, as well as blockchain-based smart contracts to ensure secure, transparent transactions. *Cloud Solutions: Expertise in AWS and Azure cloud services to build, deploy, and scale applications. I leverage serverless technologies (AWS Lambda), containerization (Docker), and CI/CD pipelines to ensure efficient and cost-effective solutions. *Mobile & Web Development: I design and develop responsive, user-friendly web applications and mobile apps with React, Angular, and Spring Boot, ensuring seamless experiences across devices. *Performance & Security Focus: I place a strong emphasis on system performance, security, and clean code practices to ensure that all systems I build are highly optimized, secure, and maintainable. *Project Management & Collaboration: Experienced in working closely with cross-functional teams, conducting code reviews, ensuring adherence to best practices, and delivering high-quality products on time. *Client-Focused Approach: I prioritize understanding client requirements and translating them into practical, production-ready solutions with ongoing support and iterations as necessary. 🤝 Why Work With Me? ✔️ Proven Success: 10,000+ hours of hands-on experience across a diverse range of projects, ensuring high-quality delivery that exceeds expectations. ✔️ Top-Rated Plus: A trusted professional with a solid reputation for delivering cost-effective, high-quality solutions. ✔️ Versatile Solutions: Whether it’s building an AI-powered grant proposal system, a secure data marketplace, a healthcare management platform, or a mobile app, I offer end-to-end solutions tailored to your needs. ✔️ Deep Knowledge in Multiple Domains: From AI and blockchain to cloud infrastructure and enterprise software, I bring in-depth knowledge to every project. ✔️ Strong Communication & Commitment: I’m committed to clear communication, transparency, and meeting deadlines. I’m always available for regular updates, feedback, and collaboration. ✔️ Long-Term Partnerships: I build solutions that grow with your business, and I’m ready for both short-term tasks and long-term collaborations. If you're looking for a reliable, detail-oriented Java expert to build, scale, or maintain your application, let’s talk! 📩 Send me a message — I’d love to hear more about your project.