About the role

We're hiring a Software Engineer with 1–3 years of experience to build and maintain our Java / Spring Boot backend platform. You'll design APIs, build integrations and work on high-impact business workflows, and you'll also contribute to our React-based internal admin portal. Working React knowledge is a strong plus.

Role: Software Engineer

Experience: 1–3 years

Primary focus: ~80% backend (Java / Spring Boot), ~20% frontend (React)

What you'll do

Backend

- Design, build and maintain REST APIs in Java 11+ and Spring Boot within a multi-module Maven codebase.
- Implement core business logic with clean, well-tested code.
- Build and maintain integrations with third-party APIs (REST, OAuth, webhooks).
- Model data in PostgreSQL with JPA/Hibernate and ship schema changes through versioned migrations.
- Build async and event-driven flows using Kafka, scheduled jobs and Redis (caching, distributed locks).
- Write unit and integration tests (JUnit, Mockito) and keep code passing static analysis checks.
- Debug production issues using logs and metrics, and fix root causes.
- Take part in code reviews and follow team engineering standards.

Frontend (React)

- Build and update admin portal screens, forms and data grids that call the APIs you build.
- Wire frontend changes end to end: API contract, UI, validation and error states.

Team

- Work with product, QA and support to turn requirements into shippable changes.
- Own features through dev, QA and staging to production release.

Must have





- 1–3 years of professional backend development in Java (Java 11+).
- Hands-on Spring Boot: REST controllers, dependency injection, Spring Data JPA, exception handling, configuration profiles.
- Solid SQL and relational modeling, preferably PostgreSQL: joins, indexes, transactions, query tuning basics.
- Working knowledge of Hibernate/JPA, including lazy loading and the N+1 problem.
- Experience writing unit tests with JUnit and Mockito.
- Comfort with Maven, Git and a PR-based workflow.
- Understanding of REST API design, HTTP status codes, auth basics (JWT/OAuth) and JSON.
- Core CS fundamentals: data structures, OOP, collections, multithreading basics.
- Explicit written communication and ownership of tasks end to end.

Good to have

Frontend

- React 18 with TypeScript: functional components, hooks, props and state.
- Material UI (MUI), including Data Grid and date pickers.
- Calling REST APIs with Axios and handling loading and error states.
- React Router and a state library (Easy Peasy, Redux or similar).
- Testing with Jest and React Testing Library.

Backend and platform

- Kafka producers/consumers, Redis caching or distributed locks.
- Liquibase or Flyway schema migrations.
- Quartz or other job schedulers; actor-based concurrency (Akka).
- Docker, Kubernetes, Jenkins CI/CD.
- Experience using AI coding tools (Claude Code, Cursor) in daily work.

Qualifications

- B.E./B.Tech/MCA in Computer Science or a related field, or equivalent practical experience.
- 1–3 years building production backend systems.

📌 Software Engineer (Bengaluru)
🏢 Lumber
📍 Bengaluru