Clayton G.

Backend & Data Engineer | Python APIs, Pipelines, Scraping

I build and repair systems: Python/FastAPI and TypeScript/Node.js APIs, PostgreSQL data models, ingestion pipelines, queues, and browser automation. Recent proof: • Built a pricing-intelligence backend spanning 175K+ products, 13M+ historical price points, and 1,000+ locations across 15 states • Designed BullMQ/Redis workers with normalization, deduplication, retries, and automated recovery • Built warehouse software used daily since December 2024, with a three-tier offline fallback and batch-safe runs past 400 labels • The demos in my portfolio are live and checkable: each one recomputes its own results in your browser, and has switches that plant a real defect so you can watch a named check catch it I'm a strong fit for: • Python/FastAPI or TypeScript/Node.js backend and API work • PostgreSQL/Supabase schemas, migrations, and integrations • Reliable scraping, extraction, and data-ingestion pipelines • Automation that must handle retries, partial failures, and changing inputs • Diagnosing and finishing an existing system How I work: I take a small number of engagements at a time and write all of the code myself. I start by confirming the current inputs, required output, acceptance criteria, and likely failure modes. I share working checkpoints, test the critical path, and leave a documented handoff. Where a number cannot be verified, I flag it rather than fill it in. Send me the current system, desired outcome, and biggest failure. I'll reply with what I would verify first and whether hourly work or a fixed first milestone is the better fit.