Chandana reddy

About

Software engineer with hands-on ownership of both fintech checkout improvements (saved payment methods/one-click checkout with tokenization and feature-flag rollouts) and production LLM/RAG systems for customer support. Demonstrates strong operational rigor via guardrails, evaluation loops integrated into CI/CD, and scalable data pipelines handling messy PDFs/CSVs/logs with reliability and observability.

Experience

Education

Key Strengths

• Owned end-to-end delivery of payments features (saved payment methods, one-click checkout)
• Strong security/compliance decision-making (tokenization vs storing card data; PCI risk tradeoffs)
• Data-driven iteration post-launch (monitored conversion/checkout metrics; reduced drop-offs via improved retries/error handling)
• Production RAG system design with robust guardrails (thresholding, citations, metadata filtering, PII masking, fallbacks)
• Built LLM evaluation loops with CI/CD regression prevention and SME human review
• Designed scalable, reliable ingestion pipelines for messy artifacts with strong observability and replayability
• End-to-end delivery of production payment-status tracking feature (API design, business logic, DB schema, tests, CI/CD)
• Designs robust REST APIs with versioning, standardized responses, and strong consumer documentation (OpenAPI/Swagger)
• Builds resilient payment systems: retries with eligibility rules, idempotency, and double-charge protection
• Event-driven backend experience with Kafka plus caching/concurrency handling using Redis
• Owns Python/FastAPI services with OAuth/RBAC, strong testing (pytest), and observability (Prometheus/Grafana)
• PostgreSQL schema design for subscription + usage-based billing with performance tuning (composite/partial indexes, rollups)
• AWS production operations and incident response: scaling, DB connection tuning, read replicas, caching, and improved autoscaling/alerting