SeniorFull TimeEN
Location: Bengaluru,Karnataka,India
MediBuddy · Bengaluru, India · Full-time · On-site
We're 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. You’ll own both the application layer and the database layer, ensuring systems are correct, performant, and resilient at scale.
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
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
