Member of Technical Staff: Full-stack
Software Engineering, IT
New York, NY, USA
Member of Technical Staff: Full-stack
Monk is an AI-native accounts receivable platform for B2B companies.
The AR stack is broken. Finance teams still chase payments with spreadsheets, email threads, and software that was old a decade ago. We think this is one of the largest, most ignored problems in B2B software. Trillions of dollars sit in outstanding invoices, and the tooling to move it is stuck in the past. We're rebuilding it with AI, speed, and real craftsmanship.
We're already doing this for over $1Bn of accounts receivable, and backed by Footwork, Acrew and Better Tomorrow Ventures. We're early, the upside is enormous, and the hardest work is still ahead of us.
The role
We are looking for a full-stack engineer to join us in person in Flatiron, NYC. We do not care about your education, age, or past titles. All that matters is whether you can ship, lead, and raise the bar for everyone around you.
What you'll own
Architecting core systems: billing engines, payment integrations, collections workflows, AI agents, and the infrastructure underneath all of it
Shipping full-stack features end-to-end, from database schema to API to UI. No handoffs
Setting technical direction. Make architectural decisions that hold up as we scale
Mentoring other engineers and raise the quality bar across the codebase
Working shoulder to shoulder with customers and feed what you learn directly into what you build
Building with AI as a core capability, not a feature bolted on
Who you are
6+ years of production-level experience shipping full-stack products
Deep TypeScript fluency across backend and frontend
Experience with modern web infrastructure: Next.js, Vercel, Supabase, or comparable tools
Owner. You do not wait for specs. You figure out what needs to be built and go build it
Extreme drive and a track record of getting things into production, repeatedly, at high quality
You set the standard for code quality and you hold others to it
AI-native. You default to using AI to move faster. You see it as a multiplier, not a novelty
Excited to build in person in Flatiron, NYC
Bonus if you
Are an ex-founder or founding engineer
Have shipped fintech or payments products
Are world-class in a domain
Why join
A broken market and a real shot at owning it. AR is huge, ignored, and ready to be rebuilt. We're early and the surface area is enormous
Real ownership. No spec handoffs. You'll own systems end to end and watch real customers depend on your work every day
A team that's all in. Motivated teammates who ship fast and hold a high bar
Experienced founders that have exited before with real traction and happy customers
Competitive salary, meaningful equity, full medical/dental and an office dinner stipend
