About this role
SDE 2 — Backend & Database Engineer 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. 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 We’re 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