Nxt Level

60 Nxt Level Back End Engineer Jobs Hiring Near You

The Role This is a founding-level Product Engineer role...high ownership, high trust, real ... Python backend) * Translate customer pain into shipped functionality, fast * Make pragmatic ...

Founding Engineer

Manhattan, NY · On-site

$90K - $121K/yr

This role starts at the Staff / Principal IC level with a clear path into engineering leadership as ... Strong backend and infrastructure expertise * APIs and external integrations * Relational databases ...

Strong backend and systems fundamentals (you can architect and ship end-to-end systems) * Product ... without programming interviews. * Recruiter Screen (30 min): Intro + mutual fit * System Design ...

Strong backend and systems fundamentals (you can architect and ship end-to-end systems) * Product ... without programming interviews. * Recruiter Screen (30 min): Intro + mutual fit * System Design ...

Strong backend and systems fundamentals (you can architect and ship end-to-end systems) * Product ... without programming interviews. * Recruiter Screen (30 min): Intro + mutual fit * System Design ...

Founding Engineer

Manhattan, NY · On-site

$90K - $121K/yr

This role starts at the Staff / Principal IC level with a clear path into engineering leadership as ... Strong backend and infrastructure expertise * APIs and external integrations * Relational databases ...

Founding Engineer

Manhattan, NY · On-site

$90K - $121K/yr

This role starts at the Staff / Principal IC level with a clear path into engineering leadership as ... Strong backend and infrastructure expertise * APIs and external integrations * Relational databases ...

Senior iOS Engineer

Manhattan, NY · On-site

$152K/yr

Experience using REST APIs and working with backend teams to accomplish product goals * Reactive programming experience * You read and write well and can communicate and collaborate both ...

Senior iOS Engineer

Manhattan, NY · On-site

$152K/yr

Experience using REST APIs and working with backend teams to accomplish product goals * Reactive programming experience * You read and write well and can communicate and collaborate both ...

Create platform tooling that is adopted and loved by both engineers and AI agents What We're Looking For * 3+ years of experience in platform, infrastructure, backend, or systems engineering * Strong ...

Create platform tooling that is adopted and loved by both engineers and AI agents What We're Looking For * 3+ years of experience in platform, infrastructure, backend, or systems engineering * Strong ...

Create platform tooling that is adopted and loved by both engineers and AI agents What We're Looking For * 3+ years of experience in platform, infrastructure, backend, or systems engineering * Strong ...

Technical Background - 3+ years as a full-stack engineer (front-end & back-end) with hands-on coding experience * Product Management Experience - 3+ years as a Technical Product Manager (TPM) or ...

Senior Technical Product Manager

Manhattan, NY · On-site

$182K - $211K/yr

Technical Background - 3+ years as a full-stack engineer (front-end & back-end) with hands-on coding experience * Product Management Experience - 3+ years as a Technical Product Manager (TPM) or ...

Showing results 41-60

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Infographic showing various Back End Engineer job openings at Nxt Level in the United States as of August 2026, with employment types broken down into 100% Full Time. Highlights an 87% Physical, and 13% Remote job distribution.

Founding Full Stack Engineer

NxT Level

Manhattan, NY • On-site

$140K - $200K/yr

Full-time

Re-posted 28 days ago


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.