SDE 2 — Backend & Database Engineer

SDE 2 Backend & Database Engineer

MediBuddy Bengaluru India Full-time On-site

Were looking for a backend engineer who thinks in query plans not just code. This is not a typical SDE 2 role you will own the database layer end-to-end partnering with SRE and platform teams to keep our Postgres clusters fast reliable and resilient at scale.

This is not a typical SDE 2 role. Youll own both the application layer and the database layer ensuring systems are correct performant and resilient at scale.

Roles and Responsibilities

• Design and develop scalable backend services and APIs for high-throughput low-latency use cases

• Own end-to-end service performance from request handling to database execution

• Write clean maintainable and testable code with strong production-readiness

• Architect and evolve PostgreSQL schemas for systems handling millions of records

• Model data for correctness extensibility and future use cases (not just current state)

• Drive decisions on normalization denormalization and data access patterns

• Optimize queries using EXPLAIN ANALYZE indexing strategies and execution plan analysis

• Solve real-world issues like slow queries lock contention deadlocks and connection exhaustion

• Tune vacuuming autovacuum and storage behavior for sustained performance

• Manage PostgreSQL on AWS RDS & Aurora parameter tuning Multi-AZ read replicas failover

• Understanding of connection pooling and efficient resource usage

• Plan and execute zero-downtime migrations and schema changes

• Build end-to-end observability across services and databases

• Create dashboards and alerts using CloudWatch (or similar tools)

• Monitor and act on key metrics like latency connections storage and replication lag

• Set up and manage streaming replication and failover mechanisms

• Run failover drills and validate RTO/RPO in practice

• Debug production issues across application database and infrastructure layers

• Use CloudWatch Enhanced Monitoring Secrets Manager and S3 effectively

• Ensure secure and reliable credential management and backups

• Define and enforce best practices for backend and database development

• Mentor engineers on API design data modeling and performance thinking

• Drive a culture of measuring debugging and improving systems continuously

What Were Looking For

• Strong experience building backend services (C# node python)

• Solid hands-on experience with PostgreSQL in production

• Deep understanding of APIs system design and service architecture

• Strong grasp of query optimization indexing and execution plans

• Experience with transactions concurrency and data consistency models

• Familiarity with AWS (RDS/Aurora CloudWatch etc.)

• Ability to debug complex production issues end-to-end