Open to opportunities

Jeff Tseng

@jefftseng

Message

I build production AI-agent platforms, APIs, and developer tools.

Zimbabwe

Message

What I'm looking for

I'm looking for contract work where I can own AI product and automation delivery end to end, from customer discovery and prototyping through testing, deployment, documentation, and iteration.

I founded OpenLegion, a source-available platform for building and operating secure teams of autonomous AI agents. I shipped it end to end in under five months, spanning Python/FastAPI services, TypeScript product surfaces, REST APIs, live dashboards, CLI tooling, isolated Docker execution, and 5,800+ automated tests.

Previously, I co-founded Shippie Technologies and built its merchant portals, courier workflows, shipment tracking, operations tooling, and admin systems through its acquisition by UniUni. I also deliver voice agents, CRM automation, data-extraction workflows, customer-support systems, and API/webhook integrations through independent AI consulting.

Experience

Work history, roles, and key accomplishments

Current

Founder, Full-Stack & Applied AI Engineer

Current

OpenLegion

Feb 2026 - Present (6 months)

Designed and shipped a production-grade AI-agent platform end-to-end, including backend APIs, developer tooling, live observability, and isolated Docker runtimes. Built infrastructure for credential vaulting, permissions, spend controls, and failure recovery, with 5,800+ automated tests and 100+ GitHub stars.