Backend Software Engineer

Re-architected a Django health-inspection backend around clearer domain models, reducing heavy database query time by 1–2 seconds. Ran ingestion for 500+ regional scrapers using Python/Selenium and Celery with canaries and retries. Built data-quality pipelines for matching, deduplication, geocoding, and normalization, improving accuracy to 85–95% and reducing LLM spend by 65%. Owned AWS delivery with Elastic Beanstalk, Aurora RDS, Redis, EC2, CI/CD, and Sentry, cutting monthly infrastructure cost by 25–30%.

Re-architected an OpenAI-powered real-time integration on WebRTC and WebSockets, reducing response latency from 5–7 seconds to under 2 seconds. Built gRPC/Protobuf transport for LLM evaluation across services, handling 4x more data at 30% faster execution. Led enterprise authentication on Entra ID with SSO, OIDC/SAML, MFA, and RBAC. Hardened database models and Alembic migrations, improving deployment speed, reducing DB errors, and increasing uptime toward 99.99%. Refactored a legacy Django/REST/gRPC async backend to remove cross-service blockers and reduce timeout issues.

Architected a cost-optimization platform evaluating 10K+ building scenarios and saving clients $500K+ in modeled long-term expenses. Introduced Kafka to distribute async third-party results to internal workers and client webhooks, improving operations 3x. Designed a modular AWS backend, offloading authentication to Okta with SSO and MFA and integrating third-party services to speed responses by 40%. Reduced database size by 30% by moving non-critical data to external storage services.

Led backend development for a distributed system of 15+ microservices across 20+ AWS services, replacing a monolithic single-server architecture. Built a core Python service for real-time, high-volume async workloads with 70–80% test coverage and 99.9% uptime. Scaled the system to 50K+ concurrent requests through event-driven async pipelines, database tuning, query optimization, and profiling. Built an automation platform integrating 100+ sites via custom Python scrapers with authentication and CAPTCHA handling, reducing manual work by 95%. Mentored a junior engineer and established architecture standards for the codebase.