tlince

Location: Colombia (UTC-5, full US overlap) Remote: Yes, full-time or contract Willing to relocate: Yes, for the right role Technologies: TypeScript, Python, PostgreSQL, Next.js, Supabase, Twilio, ElevenLabs, AI agents, LLM tool-calling, Lean 4 Résumé/CV: on request. Work: https://teal-sea.com/production-systems/ Email: [email protected]

I run operations for a US limo booking service and built the software it runs on. I started there in 2018 selling bookings, ran operations from 2019 and have been director since 2020. In that time we went from one US market to eight, I hired and trained teams of up to eleven, and bookings went from about 80 a month to over 200.

When the tools we bought weren't enough, I built the replacement: a self-hosted contact centre, the metrics pipeline the vendor never shipped, browser automation against a supplier portal with no API, and an operations platform covering quote to dispatch. I also built our AI voice agents. They now answer the phone in two markets, quote from live rates and real availability, place a card hold and prepare the booking for human review before the charge is captured.

I design the architecture and constraints, use coding agents for much of the implementation, and answer for how it runs. Separately, I built and sell modalruns.com, and I lead a Lean 4 project that machine-checks a small trained transformer against its specification.

Looking for: a role where I build and own AI systems used by real customers, as an engineer, forward-deployed, or running AI operations. Native Spanish, fluent English.

I built Ostoyae: a job runner for coding agents where the graph grows as they work.

If an agent needs something that doesn't exist, it becomes a new job. Dependent jobs wait for it.

No npm dependencies. MIT. https://github.com/teal-sea/ostoyae

Location: Medellín, Colombia (GMT-5, full US timezone overlap) Remote: Yes, remote or contract. O-1A eligible; contractor arrangements need no sponsorship. Willing to relocate: For the right thing. Technologies: TypeScript, Python, Postgres, n8n, LLM tool-calling (Anthropic/OpenAI), ElevenLabs voice, Twilio, Selenium, Supabase Résumé/CV: on request GitHub: github.com/teal-sea (grounded-check, convai-webhook-guard, the customer-six essay) Email: [email protected]

I run operations for a US limo booking service and built the software it runs on, including the voice AI that answers the company phone: quotes off live rate logic, checks real availability, books. Eight years carrying the revenue number and building the stack under it: a self-hosted contact-centre replacement, a metrics pipeline the vendor never shipped, browser automation against a portal with no API, now agents in production. Separately built and monetized modalruns.com.

Looking for: AI/agents engineering or technical-operator roles. I was the customer before I was the vendor. I build systems for businesses I understand from the inside.

Author here. I run operations for a US limo booking service and built the voice agent that answers its phone line, which is where the customer-six wall in this essay came from. Happy to answer anything.