About JoyWork

JoyWork is a VC-backed San Francisco startup managing cash flow for mid-market and enterprise service businesses. Our AI agent chases what customers owe by email, SMS and voice, and watches the workflows upstream of billing so every invoice goes out accurate. Finance teams get their time back for the work that needs their judgment.

The role

• You sit with one or two customers: you watch how their finance team uses JoyWork, find what is missing, decide what to build, ship it and deploy it for them.

• You own the product end to end. Examples: the AI agent, email and voice, the web app, ERP integrations, data and metrics.

• AI agents write more and more of the code. The job is deciding what to build, choosing between options with a reason, and being accountable for what ships.

• You work closely with the team every day.

What we expect

• You care about the problem and about our customers. You want to see them succeed with JoyWork, and their success is how you prove your impact.

• You have shipped product that real customers use, and can name one trade-off you got right and one you got wrong.

• You joined a startup early, grew with it, and want to be earlier.

• You make product calls instead of only taking tickets.

• You prove things work and say plainly where they don't.

• You use AI tools every day and are accountable for what they produce.

• You want to spend time with customers, on site.

Technical skills

• Production full-stack web development in a typed language.

• Relational databases: data modeling, SQL, schema changes on live data.

• Building with LLMs: agents and tool use, structured output, evaluation, handling a slow or wrong response.

• Integrating third-party APIs and keeping data in sync with them.

• Running what you ship: deploys, monitoring, incidents.

• Tests that catch real bugs, and knowing what each one proves.

Bonus

Experience at a service business or with AR or accounting (invoicing, collections); voice agents; a design background.

Logistics

• Full-time, in person in San Francisco.

• US work authorization required.

• Salary $120K – $250K, plus equity.