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Senior Full Stack Engineer at well-funded AI infrastructure startup

Join a founding team of industry veterans at a well-funded AI infrastructure startup in NYC. As a Senior Full Stack Engineer, you'll build a real-time compliance firewall and AI safety engine from the ground up, working across React, TypeScript, and Go. This is a high-impact role with significant ownership, backed by top-tier VCs and a repeat founder who previously sold a major NLP platform. If you've shipped software at companies with elite engineering cultures and want to tackle the hardest problems in AI safety, this is the opportunity you've been waiting for.

About this role

Role overview

Build a real-time compliance engine and AI-powered rewriting platform from the ground up. You will own features end-to-end, moving between React/TypeScript and Python/Go to ship mission-critical software. Join a founding team of industry veterans building the next generation of AI safety and regulatory infrastructure in the heart of NYC.

About the company

About the company

Well-funded AI infrastructure startup

What you'll do

What you will do

  • Develop the core inline enforcement engine and the rules layer for real-time regulatory compliance.
  • Build and optimize low-latency backend services and data pipelines using Go and Python.
  • Create intuitive, high-performance user interfaces and AI-powered features with React and TypeScript.

Who you are

Who this is a fit for

  • Proven experience shipping production software at high-growth companies with a rigorous engineering culture.
  • Deep proficiency across the full stack, with the ability to optimize both UI and low-latency backend services.
  • Thrives in early-stage environments, taking pragmatic ownership of architecture and product delivery without a PM.

Why this role

Why this role is remarkable

  • Join a well-funded startup backed by top-tier VCs and led by a successful repeat founder.
  • Solve complex technical challenges in real-time enforcement, AI safety, and regulatory policy-as-code.
  • Enjoy high ownership and impact, defining the technical foundation and culture of a growing engineering team.

Jack & Jill

How Jack & Jill work together

Jack
I get to know what you’re great at, then find roles you’d never find yourself.
Jill
I recruit from Jack’s network and make the intro when I spot a great match.

Meet Jack

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Jack gets to know what you're great at and what you want next, then searches 15 million jobs daily and helps you discover roles at companies like this.

How does this work?

Jack’s an AI agent for job searching and career coaching. He works for you.

Jill is the AI recruiter working for the company. She recruits from Jack’s network.

If it’s a match and the company wants to meet you, they’ll make the intro. In the meantime, if you’d like, Jack will send you excellent alternatives.

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