Nxt Level

Founding Full Stack Engineer

Nxt Level  •  New York City, NY (Onsite)  •  13 days ago
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Job Description

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.

Nxt Level

About Nxt Level

Nxt Level redefines recruitment, transforming it into a strategic, client-focused partnership. We’re not just recruiters; we’re dedicated allies in your talent acquisition, committed to delivering results through a blend of speed, precision, and an understanding of your unique needs.

Our Services:

• Contract

• Contract-to-Hire

• Direct Hire

• Executive Search

Key Highlights:

• High Acceptance Rate: An impressive 89%

rate, thanks to our targeted strategies.

• Efficient Hiring: Averaging 4 interviews

per offer, saving time and resources.

• Diversity Focus: 31% of our placements

are diverse candidates, underlining our

commitment to inclusivity.

Our Approach:

• Client-Centric: We work as an extension of

your team.

• Quality Over Quantity: Focused on the

perfect candidate-company match.

• Collaborative Partnership: Tailored solutions

to meet your specific aspirations and

challenges.

Join Nxt Level to transform your recruitment strategy and drive growth. Together, let’s elevate your talent acquisition to new heights.

Industry
HR & Recruiting
Company Size
11-50 employees
Headquarters
Brentwood, Tennessee
Year Founded
2017
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