Founding Full-Stack EngineerMonk is building a Multi-Agent Revenue OS for modern finance teams. They are an early-stage startup building AI-native software to help companies better understand, manage, and accelerate revenue through automation, integrations, and intelligent workflows. Monk is still in the earliest chapter of the company, but they have already built meaningful momentum.
They have a live product, paying customers, and early enterprise demand, and they are now hiring a small number of exceptional engineers to help shape both the product and the company from the ground up. This is a rare opportunity to join a high-conviction team at the true beginning and build alongside founders operating with real speed, ambition, and intensity.Quick facts:Oversubscribed Seed-stage startupBased in Union Square, NYCBuilding a Multi-Agent Revenue OS for finance teamsLive product with paying customersFirst Figma and first line of code began in Q1 2025Hiring 2–4 early / founding engineersIn-person team with high ownership and fast executionClients are seeing >40% avg. reduction in ARTop 1% compensation and meaningful equityResponsibilitiesBuild and ship product features across the full stackOwn major pieces of the product and technical architecture from day oneDesign and implement customer-facing workflows and integrationsRapidly prototype, test, and deploy AI-native product experiencesWork closely with the founding team to translate customer needs into product decisionsHelp define engineering standards, technical direction, and internal development practicesContribute to a fast-moving, highly collaborative in-person engineering environmentIs this you?You may be a strong fit for this role if you are either:An experienced full-stack engineer4+ years of experience building production softwareStrong full-stack experience, ideally in TypeScript / JavaScript environmentsExperience working at a fast-growing startup or technically rigorous product companyComfortable owning projects from 0 to 1Excited by speed, ambiguity, and a high-accountability environmentOr a more junior engineer with exceptional slopeAround 1+ year of production engineering experienceStrong early evidence of technical ability, initiative, or obsessionExperience building in TypeScript / JavaScriptSomeone who has already built meaningful things outside of school or workHighly motivated, fast-learning, and eager to earn trust quicklyAcross both profiles, the team is especially drawn to people with:High agencyExtreme ownershipStrong product instinctsComfort moving quickly and figuring things outA desire to build in person in NYCPreferred QualificationsStrong experience with:TypeScriptNext.jsFull-stack web application developmentExperience at a venture-backed startup or other high-velocity product environmentExperience building customer-facing software from 0 to 1Prior experience as a:Founding EngineerEarly startup engineerFounder or technical co-founderExperience in fintech, accounting, revenue tooling, or related workflow-heavy domains is a plusFamiliarity with modern AI tooling, LLM workflows, or applied product experimentation is a plus#PerksMeaningful equityOpportunity to join at the ground floorHigh-talent-density teamSignificant product and technical ownershipFast interview process with clear communicationCash Compensation ranges from $140 - 170k (more junior profile) through $171 - 250k for the more senior profile