Backend Developer

3 days ago

Kolkata, West Bengal, India Mantra labs Global software pvt ltd Full time ₹ 1,97,000 - ₹ 10,46,747 per year

Job Title:

Python Developer

Job Description:

We're looking for a hands-on Django engineer who can own projects end-to-end – from scoping to deployment – while building robust, well-documented APIs. The role involves extensive work with PostgreSQL, plus debugging, profiling, and optimising backend services.

Experience Range:

4 - 6 years

Educational Qualifications:

B.Tech/B.E

Job Responsibilities:

  • Own features/projects from requirements to deployment
  • Design and build RESTful APIs using Django/DRF with clean contracts, validation, and versioning
  • Model data and write efficient PostgreSQL queries (indexes, migrations, query tuning)
  • Debug and optimize performance (profiling CPU/DB, reduce N+1 queries, caching, latency improvements)
  • Implement auth & security (JWT/session, RBAC, rate limiting, OWASP best practices)
  • Add tests (unit/integration), logging, metrics, and alerts; ensure observability
  • Ship with CI/CD, manage deployments, and handle basic cloud infra tasks
  • Write concise technical docs and API specs (OpenAPI/Swagger)
  • Must-Have Skills
  • 3+ years with Django (middleware, ORM) and DRF
  • Strong PostgreSQL: schema design, migrations, query plans, indexes, transactions
  • Solid API fundamentals: pagination, filtering, idempotency, versioning, error handling
  • Debugging with logs/profilers (Django Debug Toolbar, cProfile, query inspector)
  • Performance optimization: ORM tuning, background jobs, caching (per-view/low-level), Redis
  • Proficiency with Git, CI/CD, Docker,
  • Ownership mindset, clear communication, and ability to work independently

Skills Required:

Python , Django , Flask , SQL , API , Cloud exposure , PostgreSQL , Git, CI/CD, Docker

Job Type: Full-time

Pay: ₹197, ₹1,046,747.16 per year

Work Location: In person

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