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Wissen Logo Wissen · IT - Software Development

Java Full Stack Developer

India, Gurugram · Job Posted February 16, 2026
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Job Description

Wissen is seeking an experienced Java Fullstack Developer with strong expertise in backend development using Java/Spring Boot and frontend development using React.js. The ideal candidate will have solid experience in microservices architecture, event-driven systems (Kafka), and CI/CD DevOps processes. This role requires hands-on technical capability across the full software development lifecycle, ensuring the delivery of scalable backend services and high-quality frontend user interfaces.

Job Responsibility

  • Develop, enhance, and maintain full stack applications using Java, Spring Boot, and React.js
  • Build intuitive, responsive, and user-friendly frontend interfaces
  • Design, implement, and optimize microservices-based architectures
  • Build scalable, secure, and high-performance backend services
  • Work with Kafka for event streaming, messaging, and asynchronous processing
  • Collaborate with DevOps teams on CI/CD pipeline, build automation, and deployments
  • Support end-to-end release cycles in Agile/Scrum environments
  • Participate in code reviews and ensure adherence to coding standards
  • Perform debugging, performance tuning, and root cause analysis
  • Troubleshoot and resolve production issues with minimal turnaround time
  • Work closely with cross-functional teams including QA, Architects, DevOps, and Product
  • Contribute to technical discussions and architectural improvements

Requirements

  • 10+ years of experience in Java-based backend development
  • Strong proficiency in: Core Java, Spring, Spring Boot
  • Strong proficiency in: React.js, Redux, JavaScript, HTML/CSS
  • Strong proficiency in: Microservices architecture
  • Strong proficiency in: Kafka (event-driven development)
  • Experience with REST APIs, API design, and integration
  • Good understanding of relational databases (MySQL/Oracle/PostgreSQL) and query optimization
  • Experience with CI/CD tools (Jenkins, GitLab, Bitbucket Pipelines, etc.)
  • Familiarity with Docker, Kubernetes, or containerization concepts
  • Hands-on with version control (Git)
  • Strong communication and problem-solving skills
  • Ability to work in fast-paced, dynamic environments
  • High ownership and accountability

Nice to have

  • Cloud experience (AWS, GCP, or Azure)
  • Exposure to unit testing frameworks (JUnit, Mockito)
  • Experience with caching frameworks (Redis, Hazelcast)
  • Knowledge of system design and distributed systems
  • Experience in financial services or large-scale enterprise projects
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