Here is an Exciting Opportunity- PostgreSQL & SQL Excellence-Capgemini

PostgreSQL & SQL Excellence

• Minimum 6+ years of relevant experience in write production-grade SQL using CTEs, window functions, and set-based processing.
• Ensure SQL code is readable, testable, reusable, and version-controlled (peer-reviewed via PRs).
• Optimise PostgreSQL performance through:
• Query tuning and execution plan analysis
• Indexing strategies
• Partitioning design and maintenance
• VACUUM/ANALYZE and table statistics management
• Locking and concurrency handling
• Use EXPLAIN (ANALYZE, BUFFERS) to diagnose slow queries and interpret:
• Join strategies (nested loop, hash, merge)
• Sort methods
• Buffer hits vs reads (I/O hotspots)
• Design effective indexes (btree, hash, GiST, GIN), including composite indexes aligned to filters, joins, and sort order.
• Apply index-friendly query patterns:
• Sargable predicates
• Avoiding functions on indexed columns where possible
• Minimising implicit casts and datatype mismatches
• Implement resilient pipelines with proper error handling, retry logic, idempotency, and reprocessing/backfill capability.