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I am an experienced Software Engineer specializing in Java, Spring Boot, J2EE, and Microservices Architecture, with strong expertise in enterprise-level FinTech applications. Since November 2022, I have contributed to mission-critical projects at Atlas Computer Technology, including USSD platforms, Mobile Banking, Backoffice systems, and real-time payment integrations. My expertise includes: ✅ Java EE & Spring Boot (Reactive) for building scalable, high-performance banking applications, including customer onboarding and back-office operations. ✅ Microservices design and implementation with modular, maintainable architectures. ✅ Asynchronous messaging & integration using Kafka and ActiveMQ for seamless inter-service communication. ✅ Payment gateway integrations, including Flygate and IPS, supporting real-time bank-to-bank transfers with XML messaging. ✅ Secure identity management using Keycloak. ✅ Designing and consuming RESTful APIs, with experience in modernizing services for cloud readiness and enterprise integration. Professional Approach: I am passionate about delivering clean, maintainable, and production-ready code that drives real business value. I bring a problem-solving mindset, collaborative approach, and adaptability to every project — whether building features from scratch, optimizing existing systems, or integrating complex banking solutions. Let’s connect and make your vision a reality. Portfolio: kidist-portfolio-al3e.vercel.app

With 12+ 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

Hi, I’m a Java Developer with extensive experience in software development, specializing in backend, and full-stack solutions. I build high-performance, scalable applications using Java, Spring Boot, and modern web technologies. My expertise covers RESTful API design, microservices architecture, and cloud-based solutions with Amazon Web Services (AWS) and Docker. ✔ Core Skills & Technologies: I leverage a versatile tech stack to build scalable, secure, and high-performance applications, ensuring reliability and efficiency. 🟢 Programming Languages: Java, JavaScript, TypeScript, Python, PHP – Used to develop 20+ enterprise applications, handling thousands of daily users. 🟢 Frameworks & Libraries: Java Spring Boot, Spring Framework, Hibernate, React, Angular, jQuery – Optimized system performance, improving response times by 25%. 🟢 Database Management: MySQL, SQL, MongoDB – Designed and maintained databases processing over 1M+ transactions monthly. 🟢 Web & Application Development: Web Development, Java Development, Desktop Applications, Standalone Applications, WordPress – Delivered 50+ projects, enhancing client operations and user engagement. 🟢 DevOps & Deployment: Docker, Apache Tomcat, Git – Streamlined CI/CD pipelines, reducing deployment time by 30%. 🟢 Software Engineering: Software Architecture & Design, Software Development, Software Debugging – As a Java Developer I developed scalable solutions supporting 50K+ active users. 🟢 UI/UX: HTML CSS JavaScript, HTML5, CSS3 – Created responsive interfaces that increased user engagement by 20%. 🟢 Testing & Quality Assurance: JUnit, Software Testing – Reduced production issues by 40% through automated and manual testing. ✔ What I Build as a Java Developer My expertise spans across developing: 🟢 Backend Systems: Scalable microservices architectures, high-performance enterprise applications, developed by a Java Developer 🟢 Web Development: Secure full-stack solutions with Spring Boot, JavaScript, HTML, CSS 🟢 API Development & Integrations: RESTful API, GraphQL, third-party API integrations 🟢 SaaS Platforms: Cloud-powered software development with AWS, Docker, and Kubernetes 🟢 Custom CRM & ERP Solutions: Optimized for business process automation 🟢 DevOps & Infrastructure: CI/CD pipelines, cloud deployment, serverless solutions ✔ Industries I Work With My solutions empower businesses in diverse industries: 🟢 EdTech & E-Learning: LMS platforms, interactive e-learning solutions 🟢 HealthTech & Medical: Secure healthcare applications, compliance-driven systems 🟢 E-commerce & Retail: Payment integrations, inventory management solutions 🟢 FinTech & Banking: Secure financial applications, transaction processing 🟢 SaaS & Enterprise Software: B2B platforms, cloud-based solutions 🟢 HRTech & Recruitment: Custom HR systems, workforce analytics 🟢 Manufacturing & Logistics: ERP integrations, supply chain management 🟢 Travel & Booking: Reservation systems, customer portals ✔ Development Approach & Work Style 🟢 Problem-Solving Mindset: Writing clean, maintainable, and well-documented code for scalability 🟢 Client-Centric Approach: Aligning technology solutions with business goals 🟢 Agile Software Development: Iterative development, CI/CD pipelines, continuous integration 🟢 Performance & Security Focused: Optimized queries, security best practices ✔ Leadership & Client Impact: 🟢 Led teams of 5+ Java developers to implement scalable Java solutions for clients worldwide( from India to the US). 🟢 As a Java Developer, I developed Java-based platforms contributing to a significant increase in client revenue. 🟢 Consistently received 4.9/5 ratings, reflecting dedication to quality and client success. If you're looking for an experienced Java Developer, Senior Java Developer, Full Stack Developer, Java Spring developer, Javascript Developer, Python Developer, Java developer India to build scalable, high-performance applications, let’s connect!🚀

Hi there 👋 I am a senior software engineer with more than 18+ years of experience in the industry with a can-do thinking in mind. As a fullstack developer heavy on the backend, I have a wide range of expertise in the backend, frontend, devops, and system design. I am proficient with Java Spring Boot and familiar with Spring Cloud, Spring AI, Spring Data, Micronaut, Hibernate, JUnit, Mockito, AssertJ, K6, Thymeleaf, React, Vue, Angular, Tailwind, Bootstrap, Docker, Kubernetes, Helm, GCP, AWS, Azure and VPS. Using various servers like Postgres, MySQL, Oracle DB, SQL Server, MongoDB, Redis, Elasticsearch, Vespa, Sqlite, BigQuery, Tomcat, Jetty, Undertow, Netty, Nginx, Apache, Node, ActiveMQ, RabbitMQ, Kafka, PubSub, Auth0, Keycloak, LDAP, Eureka, Consul, Vault, Sleuth, Resilience4j, Minio, S3, Alfresco, Jenkins, Stripe, Twilio, OpenAI, Azure AI, Gemini AI, and OpenRouter AI. Using applications like GitHub, GitLab, BitBucket, Jira, Redmine, Trello, Notion, Figma, SSH, TMux, Git, NVim, Copilot, ChatGPT, Gemini, Claude, Codex, VSCode, Cursor, Antigravity, IntelliJ, DBeaver, Insomnia, Postman, and Chrome. The most common projects I work with are API services, web applications, enterprise applications, and AI platform integration using architecture like monolith, modulith, and microservice, using protocols like REST, GraphQL, SOAP, gRPC, JSON-RPC, XML-RPC, WebSocket, Webhooks, Polling, OpenAPI, and AI Platform Integration API with HITL (Human in the loop) good practices. I am open to discussion and project work. Feel free to hire me. Thanks, Warmly Regard.

I am having more than 13 years of experience as a Java developer. I am holding a Masters degree in Computer Science (MCA). Looking for a individual contributor role where I can make a significant contribution using the experience & skill that I have acquired. PROGRAMMING LANGUAGES & TECHNOLOGIES USED: - Java, Spring Boot, Spring AI, Eureka Server, Feign Client, Spring Cloud Config Server, Spring Security, Authentication, Restful Web-services, Micro-services, JWT Token Implementation, Lombok, Swagger. - Frontend: Html, CSS, Javascript, Angular, and Ajax - Databases: MySQL, Oracle, PostgreSQL, Mongo, Dynamo DB - Design Patterns: Singleton, Factory, Builder, Strategy, Decorator

Senior Backend Engineer with 10+ years of experience designing and building scalable backend platforms and cloud-based distributed systems. Strong expertise in Java, Spring Boot, and microservices architecture with production deployments on AWS. Experienced in building high-availability APIs, event-driven systems, and real-time services. Proven ability to improve system performance, reliability, and security while collaborating with global engineering teams. TECHNICAL SKILLS Languages: Java (8–17), JavaScript Backend: Spring Boot, Spring MVC, JPA, Hibernate, Google Guice, REST APIs, Microservices, WebSocket Frontend: AngularJS, Angular, React Messaging: Kafka, RabbitMQ Cloud & Infrastructure: AWS (EC2, S3, SQS, SNS, Lambda, Cognito, SES), Docker Databases: PostgreSQL, MySQL Observability: Elasticsearch, Logstash, Kibana (ELK) Security: OAuth2, JWT, Keycloak, OWASP Top 10 DevOps: Jenkins, Azure DevOps, Git, Bitbucket