Selected work
Representative outcomes across backend performance, transactional systems and production AI workflows. Details are anonymised to protect proprietary systems.
Backend · PostgreSQL · Redis
Problem
A production API had become slow and harder to operate under real user traffic.
Work
Tightened data access paths, reduced unnecessary backend work and improved caching/state boundaries.
Result
Reduced p99 latency from approximately 300 ms to under 120 ms.
AI workflow · Structured outputs · Validation
Problem
Free-form customer conversations needed to become complete, usable product records without relying on operators to manually rewrite every field.
Work
Built an AI-assisted extraction workflow with structured outputs, schema validation, deterministic field rules and explicit failure handling before downstream use.
Result
Converted unstructured conversations into validated structured drafts that could be reviewed and passed into the existing product workflow.
Transactional systems · PostgreSQL · Background jobs
Problem
Credit usage needed to be traceable, expiry-aware and safe against duplicate redemption.
Work
Designed locking, idempotency, expiry handling and duplicate-redemption prevention around ledger operations.
Result
Created a clearer transactional system with auditable state transitions and safer background processing.
Share the product context, desired outcome, budget range and timeline. I will respond if it fits a focused Rails or AI workflow sprint.
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