Hire the Best J2SE Specialists in Bengaluru, IN

Backend Software Developer with 3+ years of experience in designing scalable, secure, and high-performance systems in fintech and savings-tech domains. Successfully built and delivered impactful fintech solutions including: • AutoPayStepUp – a smart daily savings system that increased user savings and revenue. • Remit Money Transfer System – enabling secure and efficient international money transfers. • Payment Gateway (PGW) – streamlined cash transaction processing with multiple partners. ✅ Technical Expertise: Hands-on experience with Java, Node, Spring Boot, Microservices, Kafka, Redis, MongoDB, MySQL, GraphQL, Camunda BPMN, and Docker—focused on building scalable, secure, and high-performance systems. ✅ Education & Problem-Solving: Graduate of IIT ISM Dhanbad with a strong foundation in algorithms, data structures, and system design.

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

I'm a Senior Java Backend Engineer specializing in building scalable, secure, and high-performance backend systems for fintech, payment platforms, SaaS products, and enterprise applications. With 12+ years of experience, I've designed and developed production-grade distributed systems that process high volumes of transactions using Java, Spring Boot, Microservices, Kafka, and cloud-native technologies. My expertise lies in building reliable backend services, event-driven architectures, secure APIs, and payment processing solutions. Areas of Expertise 💳 Payment & Financial Systems Building secure payment platforms, transaction processing services, authorization workflows, fraud prevention integrations, notification systems, and high-availability financial applications. ☁️ Microservices & Distributed Systems Designing scalable microservices using Spring Boot, Kafka, Redis, REST APIs, asynchronous messaging, resilience patterns, caching strategies, and cloud-native architecture. 🚀 Backend Development Developing secure RESTful APIs with Spring Security, Hibernate/JPA, PostgreSQL, Redis, performance optimization, and scalable backend services. ☁️ Cloud & DevOps Docker, Kubernetes, Git, CI/CD pipelines, Linux, monitoring, logging, and production deployments. Core Technical Stack Languages: Java (8–21), SQL Backend: Spring Boot, Spring MVC, Spring Security, Spring Data JPA, Hibernate, REST APIs, gRPC Messaging: Apache Kafka, JMS Databases: PostgreSQL, Redis, MongoDB, Couchbase Cloud & DevOps: Docker, Kubernetes, Jenkins, Git, Maven, Linux Architecture: Microservices, Event-Driven Architecture, Domain-Driven Design (DDD), Clean Architecture, SOLID Principles Services I Offer ✔ Java Backend Development ✔ Spring Boot Application Development ✔ Microservices Architecture ✔ REST API & gRPC Development ✔ Apache Kafka Integration ✔ Payment System Development ✔ Database Design & Performance Optimization ✔ System Design & Architecture Consulting ✔ Legacy Application Modernization ✔ Code Reviews & Performance Optimization I focus on delivering clean, maintainable, and production-ready backend solutions that are scalable, secure, and built for long-term success. Whether you're building a new product, modernizing an existing system, or scaling your backend infrastructure, I can help turn your ideas into reliable software.

🚀 Senior Java Developer with 6+ years of experience building scalable SaaS platforms, FinTech applications, enterprise systems, and cloud-native microservices using Java, Spring Boot, Kafka, PostgreSQL, and AWS. I help startups and enterprises design, develop, and scale secure backend systems that handle high traffic, complex business logic, and mission-critical workflows. My expertise includes backend architecture, microservices development, API integrations, cloud deployment, and performance optimization. Core Expertise ✅ Java ✅ Spring Boot ✅ Spring Security ✅ Spring Cloud ✅ Hibernate / JPA ✅ REST APIs ✅ Microservices Architecture ✅ Event-Driven Systems ✅ Apache Kafka ✅ RabbitMQ ✅ AWS SQS & SNS ✅ Redis ✅ Elasticsearch Databases ✅ PostgreSQL ✅ MySQL ✅ MongoDB ✅ DynamoDB ✅ Cassandra Cloud & DevOps ✅ AWS ✅ Docker ✅ Kubernetes ✅ CI/CD Pipelines ✅ Linux Administration Industry Experience ✅ FinTech Applications ✅ SaaS Platforms ✅ Enterprise Software ✅ eCommerce Systems ✅ ERP & CRM Solutions Services ✔ Java Backend Development ✔ Spring Boot Development ✔ Microservices Architecture ✔ API Development & Integration ✔ Cloud Migration ✔ System Optimisation ✔ Application Scaling ✔ Legacy System Modernisation I focus on building reliable, scalable, and maintainable backend systems that support long-term business growth. Let's discuss your project requirements.

“I’m a developer with more than 8 years of industrial experience, building solutions for small and medium-sized businesses. Whether you’re trying to win work, list your services, or even create a whole online store – I can help! Below are my expertise domains: Java, Javascript, Spring Boot, Spring MVC, SQL, DevOps, Microservices, AWS, Oracle Cloud, Docker, Kubernetes, CI/CD, Jenkins, Node.js, React, ElasticSearch, Redis, Kafka. Feel free to reach out"

Java architect with more than 25 years of experience in following technologies- ✔ Java, Enterprise Java, Grails, Groovy, EJB, JSP, JSF2, Servlets, Hibernate,JPA, Mybatis, Struts(1.3,2.0), Netflix OSS, Spring Cloud, Spring Boot, Spring, Spring-MVC, Tiles, REST, AngularJS-2, Javascript, JQuery, AJAX, OSGi, SOAP, JSON, Ajax, Axis, JAX-WS, JSR-168, MDB, JMS, Hibernate-search, Lucene,Solr, Liferay, LDAP, AD, JUnit, Equinox, CXF, Grails with Groovy, Vaadin, OSGi, UML, Castor, Pentaho, Jasper, BIRT, Selenium, Swing, AWT, Oracle, DB2, SqlServer, MySql,PostgreSQL, MongoDB, Highcharts, Play, Activiti BPM, Camunda, Apache Kafka, Rabbit MQ, Elastic search, AWS, XMPP, Google Aanalytics, Piwik, Adwords, SEO, Docker ✔ Cloud services : AWS (EC2, RDS,SQS, S3), Google, Azure ✔ Application Servers: Websphere , Weblogic, JBoss, Glassfish, Geronimo ✔ Web Servers: Tomcat, Apache, Resin, Nginx ✔ Packages: WCS, ATG, Sterling Commerce(Yantra) OMS, Manhattan TMS, OMS, TPM, Oracle PIM, Tibco, Webmethods, WordPress, Zimbra. ✔ Social Integration : Facebook, Twitter, YouTube, Linkedin, Google+ Integration ✔ Payment Gateway : Paypal, Stripe, Twillo ✔ Methodology: RUP, Agile, XP, TDD ✔ IDE: IntelliJ, GGTS, Eclipse, NetBeans, JDeveloper, JBuilder, RAD ✔ Code Versioning: ClearCase, SVN, Mercurial, GIT ,TFS, StarTeam ✔ Quality: ClearQuest, Quality Center ✔ Build: Gradle, Maven, Ant, Ivy ✔ CI: Hudson, Jenkins ✔ Performance: JProfiler, JMeter, LoadUI ✔ Project Tracking: JIRA, Redmine, MPP ✔ Misc : Confluence, Crucible, Fitnesse, LPSolve, SoapUI, WLE, Toad, Rational Rose Have extensive expertise in developing complex business solutions using Java/Enterprise Java, Groovy with Grails and related technologies for the following verticals - Supply Chain Management * E-Commerce * Investment Banking and Finance * Analytics * Health-care Have developed enterprise products for * Manhattan's OMS, TMS, Inventory Management, Trading Partner Management * FICO's Insurance Fraud Manager - used predictive analytic models. Have taken multiple e-commerce applications to production and provided support thereafter for * Tesco change program * GE power system Parts-Edge system * Met-life online quote system Expertise in- Architecture, Design, OOAD, SOA, Design Patterns, UML, Providing Scalable Solution, RUP and Agile methodology, Java, Enterprise Java, Open Source Frameworks