Senior Software Engineer / Consultant Independent Contractor
Delivered remote software and media-technology solutions for more than seven enterprise clients. Architected high-concurrency Go services, microservices, RAG ingestion pipelines, cloud integrations, and scalable backend systems.
Scaled backend throughput from approximately 25 RPS to 2,868 RPS through Go worker pools and PostgreSQL connection-pool tuning. Improved RAG freshness from 15–25 minutes to 50–90 seconds using LlamaCloud polling, pgvector materialization, and Redis mutex locking.
Optimized ingestion, video delivery, database queries, and frontend payloads. Reduced MongoDB query latency from 55 seconds to under 180 ms, stabilized BullMQ/Redis processing, implemented Google Drive synchronization, and designed WebRTC VoIP, zero-trust multi-tenant, and ReBAC solutions.