BENGALURU · FULLTIME
Sr Back-End Developer
Kots
Bengaluru · onsite · Posted 28d ago
Sourced from
Undisclosed5–10 yrsfulltimeBengaluru
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Section · 01
About this role
Job_Description":"
Senior Back-End Developer
Python SQL AWS
About the Role
We are looking for a hands-on Senior Back-End Developer who writes production-grade server-side code. You will
design and build the services and data layer behind our applications using Python, with relational databases
underneath all deployed and operated on AWS.
This is a builders role, not a coordinators. You should be comfortable writing complex SQL by hand, designing REST
APIs that other teams depend on, reasoning about performance and failure, and owning your code through testing,
deployment and production support.
What Youll Do
- Design, build, and maintain Python (Flask/FastAPI) services and REST APIs consumed by our front ends and
partners.
- Write and optimise advanced SQL multi-table joins, subqueries, CTEs, and window functions without
leaning on an ORM to do the thinking for you.
- Model and evolve relational schemas, design indexes, and tune slow queries using EXPLAIN / EXPLAIN ANALYZE.
- Plan and run schema migrations safely against live data.
- Handle authentication, authorisation, and the security of the endpoints you expose.
- Build background jobs, queues, and scheduled work, and make them safe to retry.
- Write meaningful unit and integration tests for the code and modules you ship.
- Deploy, monitor, and troubleshoot services on AWS, and improve build and release pipelines.
- Review peers code, uphold quality standards, and mentor less experienced developers.
What Were Looking For
This is a senior back-end role we expect depth in Python and in relational databases, and the ability to run what
you build.
- 5+ years of relevant, hands-on back-end development experience.
- Python solid backend experience building REST APIs (Flask or FastAPI), not just scripting.