What are the responsibilities and job description for the Senior Software 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 Role
This 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 Do
- Build and ship full-stack product features used by real customers
- (React / TypeScript frontend, Python backend)
- Translate customer pain into shipped functionality, fast
- Make pragmatic technical decisions that balance speed with scale
- Influence product direction, engineering standards, and team culture
- Operate effectively without heavy process or rigid specs
What Our Client Is Looking For
- 4–8 years of professional software engineering experience
- Strong full-stack capability (React/TypeScript Python)
- High agency: you unblock yourself, move fast, and take ownership
- Comfort operating in ambiguity and early-stage environments
- Clear communicator who enjoys working directly with customers
- Excited to work in-person in NYC (4–5 days/week)
Nice to Have
- Experience with LLMs, AI agents, or modern AI tooling
- Background building data-heavy or workflow-driven applications
- Previous startup or founding-team experience
Why This Opportunity
- Founding-level impact: your work will shape the product and company
- Immediate customer exposure: what you build gets used right away
- Meaningful equity: above-market equity for early builders
- Small, sharp team: autonomy, trust, and speed over bureaucracy
Compensation
$140k–$200k base
Generous, above-market equity
Interested?
Apply here or message us directly to learn more about the client, team, and opportunity.
Salary : $140,000 - $200,000