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Experience: 3+ yrs
Location: Chennai, Tamil Nadu, India
Job Type: Full-time
We are looking for a strong Database Engineer with deep expertise in PostgreSQL, distributed systems, database internals, and production database operations. The role focuses on designing, scaling, automating, and optimizing database infrastructure for high-throughput, cloud-native environments.
The ideal candidate will have a strong understanding of storage engines, replication, transactions, concurrency, reliability, performance optimization, and data consistency, combined with solid Python skills for building production-grade automation and operational tooling.
Key Responsibilities
Design, operate, optimize, and scale production database systems across SQL and NoSQL environments.
Debug and prevent complex concurrency issues, including deadlocks, lock contention, starvation, and long-running transactions.
Advise application teams on safe database access patterns, including idempotency, retries,



backoff strategies, and concurrency controls.
Develop a deep understanding of database storage and replication internals, including B-trees, LSM structures, page layouts, WAL/redo/undo, checkpoints, compaction, MVCC, and storage engines.
Design and implement database backup, restore, upgrade, migration, and disaster recovery strategies.
Analyze query planner behavior, statistics, cardinality estimation, and query performance bottlenecks.
Develop effective indexing strategies while considering write amplification, storage, and performance trade-offs.
Build database reliability practices, preventative controls, and automated remediation mechanisms.
Implement monitoring and alerting for replication lag, lock contention, cache health, slow queries, storage growth, and failover events.
Lead database incident response, root-cause analysis, and post-incident reviews.
Build production-grade Python automat

📌 Database Administrator (Chennai)
🏢 Weekday AI
📍 Chennai