As a Founding Engineer, you will architect and build the core backend systems powering an AI-agent platform for autonomous ecommerce transactions, from conception to production. You will own critical infrastructure, solve reliability and latency challenges in payment and checkout flows, and shape the technical direction and culture of a seed-stage startup. This role requires 2-6 years of full-stack experience with TypeScript, React, and relational databases, and a willingness to work on-site in NYC five days a week.
Key Highlights
Key Responsibilities
Technical Skills Required
Benefits & Perks
Nice to Have
Job Description
Founding Engineer
$180K-$250K Base + 0.5%-2.0% Equity
New York City, On-site
About the company
Our client is building the operating system for agentic commerce: infrastructure that turns a user's intent to buy into a completed order across nearly any merchant site. Its AI agents use browser automation to execute checkout, support a universal cart, and return order confirmation to the originating app. Founded in 2024, the seed-stage company has raised approximately $3.1 million, has live customers, and is growing from a four-person core team.
The role and why it matters
As a Founding Engineer, you will architect and build the core systems behind the company's AI-agent platform from end to end. You will own critical infrastructure from conception through production, solve reliability and latency problems across complex payment and checkout flows, and help define the technical direction, engineering standards, and culture of the company.
What you'll do
- Design, build, and scale product infrastructure, developer tools, and APIs.
- Build reliable, low-latency backend systems that handle payment and checkout complexity across many merchant sites.
- Own full-stack product work with an emphasis on backend systems and integrations.
- Set direction for important technical surfaces as usage and customer demand grow.
- Develop and improve browser-automation systems that can reliably execute ecommerce transactions.
- Work directly with the founders on product priorities, architecture, and customer needs.
- Help shape engineering hiring decisions, operating habits, and company culture.
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What we're looking for
- 2 to 6 years of full-stack software-engineering experience, with strong evidence of quality and growth potential.
- Production experience with TypeScript, React, and relational databases such as PostgreSQL or MySQL.
- Experience at a reputable technology company or venture-backed startup.
- A record of independently building and shipping full-stack projects.
- Strong product judgment, ownership, communication, and comfort working directly with founders.
- Genuine interest in AI, ecommerce, fintech, or agent-driven transactions.
- Willingness to work on-site in New York City five days per week in a high-commitment environment.
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Bonus points
- Experience with Playwright, Supabase, Bun, payments, checkout systems, or ecommerce infrastructure.
- Experience reverse-engineering complex web flows or building automation for difficult transaction surfaces.
- Startup experience in fintech, ecommerce, developer tools, or AI infrastructure.
Compensation, location, and equity
- $180K-$250K base salary, with flexibility for exceptional candidates.
- 0.5%-2.0% equity.
- Full-time, on-site work in New York City five days per week.
- Relocation support is available.
- Existing visa transfers, including OPT and H-1B transfers, may be supported on a case-by-case basis.
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