What are the responsibilities and job description for the Founding Full Stack Engineer position at NxT Level?
Founding Product Engineer (Client Search) | AI B2B SaaS | NYC (In-Person)We're partnering with a seed-stage B2B SaaS startup building AI-powered sales software for the $9T chemicals industry, an industry still operating on PDFs, spreadsheets, and tribal knowledge.Our client is tackling the “needle-in-a-haystack” problem for technical sales teams by combining deep domain expertise with AI agents. They have early customer traction, strong investor backing, and are now building their founding engineering team.This is a confidential search for one of their earliest product engineers.The RoleThis is a founding-level Product Engineer role...high ownership, high trust, real influence.You'll work directly with the founders and customers to build the core product from the ground up, shaping not just features, but architecture, workflows, and engineering culture.If you enjoy zero-to-one work, shipping quickly, and owning outcomes end-to-end, this role was designed for you.What You'll DoBuild and ship full-stack product features used by real customers(React / TypeScript frontend, Python backend)Translate customer pain into shipped functionality, fastMake pragmatic technical decisions that balance speed with scaleInfluence product direction, engineering standards, and team cultureOperate effectively without heavy process or rigid specsWhat Our Client Is Looking For4–8 years of professional software engineering experienceStrong full-stack capability (React/TypeScript Python)High agency: you unblock yourself, move fast, and take ownershipComfort operating in ambiguity and early-stage environmentsClear communicator who enjoys working directly with customersExcited to work in-person in NYC (4–5 days/week)Nice to HaveExperience with LLMs, AI agents, or modern AI toolingBackground building data-heavy or workflow-driven applicationsPrevious startup or founding-team experienceWhy This OpportunityFounding-level impact: your work will shape the product and companyImmediate customer exposure: what you build gets used right awayMeaningful equity: above-market equity for early buildersSmall, sharp team: autonomy, trust, and speed over bureaucracyCompensation$140k–$200k baseGenerous, above-market equityInterested?Apply here or message us directly to learn more about the client, team, and opportunity.
Salary : $140,000 - $200,000