Java Backend Developer

Java Backend Developer (3–4 Years Experience)

Location:

Java Backend Developer

Key Responsibilities

• Develop and enhance backend systems using

  Java, Spring Boot, Hibernate/JPA

  .
• Design

  modular architectures

  , reusable services, and scalable microservice components.
• Build and optimize

  REST APIs, data pipelines, search modules

  , and integration workflows.
• Work with relational and NoSQL databases (

  MySQL/PostgreSQL, Elasticsearch

  ).
• Implement

  search, filters, sorting, indexing

  , batch jobs, and large-volume data operations.
• Build and manage

  data ingestion / ETL workflows

  (NiFi or similar tools).
• Improve performance through

  query optimization, indexing, caching

  , and application tuning.
• Implement secure backend modules including

  RBAC, authentication, and authorization

  .

• End-to-end ownership of the full software development lifecycle (SDLC)

  — including requirement analysis, technical design, development, unit testing, integration, deployment, documentation, and ongoing maintenance.
• Troubleshoot production issues, maintain clean and maintainable code, and conduct code reviews.
• Collaborate closely with BA, QA, UI, and DevOps teams in an

  Agile environment

  .

Requirements

• 3–4 years

  of hands-on experience in

  Java + Spring Boot

  backend development.
• Practical experience with:

• Elasticsearch

  (indexing, search queries, aggregations).

• ETL / data pipeline tools

  (preferably

  Apache NiFi

  , or similar).
• Strong understanding of

  REST API design

  , modular architecture, microservices, and reusable service patterns.
• Solid SQL knowledge — joins, complex queries, relational modeling, indexing, transactions.
• Experience working with

  batch processing

  and high-volume data operations.
• Strong debugging skills and comfort with performance-heavy features.
• Ability to take

  ownership from design to deployment

  with minimal supervision.
• Exposure to

  cloud environments

  ,

  CI/CD pipelines

  ,

  Docker/Kubernetes

  .

Good to Have

• Experience mentoring juniors or leading small modules.
• Understanding of API contract alignment and backend–UI integration.
• Knowledge of distributed system design and scalability patterns.