I will integrate an llm or ai feature into your app


About this gig
Most "AI integrations" are a demo that breaks in production. I ship LLM features that survive real traffic: guardrails, evals, cost control, retries, and monitoring, the parts that actually matter.
I am a Staff/Principal engineer with 12+ years shipping production software. I led an 8-person platform team running over $5B/year in AI lending decisions, where I built the eval harnesses and model-promotion gates that let us ship LLM and ML changes safely. Today I ship LLM products solo on a live stack (Fly, Vercel, Neon).
What I do:
- Integrate OpenAI, Anthropic Claude, or open models into your app with clean Python or TypeScript
- - Proper prompt design, structured outputs, streaming, and error handling
- - Retrieval and tool use where you need it, plus cost and latency controls
- - Evals and monitoring so you know when output drifts, not just when it crashes
- - Production code and a clean handoff, not a notebook
This is hands-on build plus consultation. Tell me your stack and what the feature should do, and I will scope it precisely.
No unlimited revisions, which keeps scope clean. Message me before ordering so we can scope it right.
Get to know Stephen
Senior Full Stack Engineer Payments, Scrapers, APIs
- FromUnited States
- Member sinceApr 2015
- Avg. response time7 hours
Languages
English
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FAQ
Do you work with n8n, Zapier, and Make?
Yes, all three. I will also tell you honestly if your use case is cheaper or more reliable on a different platform, for example self-hosted n8n for high volume or custom code versus Zapier task limits.
Can you fix an automation I already built?
Absolutely. Send a screenshot or export of the workflow and the error. I diagnose the real root cause, auth expiry, rate limits, bad pagination, race conditions, not just band-aid retries.
Can it connect to a custom API with no native integration?
Yes. I build custom webhook, REST, and GraphQL integrations and write custom code nodes in JavaScript or Python for anything without a prebuilt connector. This is most of what I do day to day.
Can you handle scraping, databases, payments, or AI steps?
Yes to all. I run production Playwright scrapers, Postgres pipelines, Stripe billing flows, and OpenRouter and LLM steps in live apps.
Will I be able to maintain it after handoff?
Yes. Every package includes a Loom walkthrough; Standard adds short docs and Premium adds full documentation plus a handoff call and 14-day bug support.

