Interfere

Founding Product Engineer

New York, US Full-time

Interfere is building the self-healing layer of the internet: software that detects issues, diagnoses root causes, and ships fixes before anyone notices something’s broken. The goal is to empower founders, product managers, and designers to understand how the product they're building actually works in the real world. Software runs civilization. When it breaks, the world stutters. We're building its immune system. This is not a normal job – it demands taste, intensity, and obsession. Difficulty wakes the genius.

The Moment

AI has democratized shipping code, but excellence remains scarce. We're creating the infrastructure that makes product excellence no longer aspirational but inevitable and expected. We've raised over $5.1M from world class investors like Y Combinator, Vercel Ventures, Hummingbird, Designer Fund, and many others to turn our vision into reality. This isn't about incremental improvements, but about fundamentally changing how reliable software gets built.

The Role

As a Founding Engineer, you will own end-to-end features that define how the greatest teams build and iterate upon their products. You'll architect and ship the foundational systems powering our proprietary data pipeline and interfaces that push the boundaries of what's possible.

The Work

You'll operate at the intersection of the impossible and the inevitable. This role demands:

  • Depth over breadth – You'll go deeper into problems than most think necessary, finding elegance where others accept complexity
  • Craft at velocity – Ship exceptional work quickly without compromising on quality that matters. Both form and function, never just one or the other
  • "High Standards Win" – Question everything, rebuild from scratch when needed, never accept "that's how it's done" or "good enough"
  • Ownership without borders – Your domain is whatever needs doing to make Interfere exceptional. No excuses

What You'll Build

  • Core detection and diagnosis systems that understand codebases at scale
  • Developer-facing interfaces that make complex systems feel intuitive
  • Infrastructure that ships fixes autonomously and safely
  • APIs and integrations that meet developers where they are
  • The foundation of a platform that will handle billions of events

What We're Looking For

  • Immense pride in the work you do and a desire to build the best products on earth
  • Builders with taste – You know the difference between good and great, and you can't sleep until you've achieved the latter
  • Systems thinkers – You see patterns others miss
  • Relentless learners – You dive into unfamiliar domains and emerge with either expertise or a delusional drive to acquire it
  • Clear communicators – Complex ideas become seem obvious when they find their way into your hands
  • Domain experts – True fluency & expertise in Next.js, TypeScript, and modern JS development tooling.

Nice to Have

  • Experience with developer tools, observability platforms, or infrastructure
  • Deep knowledge of TypeScript/Node.js, React, or distributed systems
  • Track record of being on a team that shipped products developers love
  • Portfolio of work that demonstrates exceptionality - open source contributions, side projects, or production systems you've built

What We Offer

  • Founding team equity and competitive compensation
  • Complete ownership of meaningful work
  • Health, dental, and vision coverage
  • Visa sponsorship for exceptional international candidates
  • The opportunity to define the technical foundation of a category-defining company

How We Work

We're in-person in New York City, and believe proximity accelerates everything that matters, but we'll gladly help you move here. Send us evidence of exceptional work you've shipped - GitHub repos, live products, technical writing - and a note about why Interfere resonates with you. We value proof of who you can be over who you've been.

🚀 Y Combinator Company Info

Y Combinator Batch: S25
Team Size: 5 employees
Industry: B2B Software and Services -> Engineering, Product and Design
Company Description: Build software that never breaks

💰 Compensation

Salary Range: $150,000 - $190,000
Equity Range: 0.5% - 1.1%

📋 Job Details

Job Type: Full-time
Experience Level: 3+ years
Engineering Type: Full stack
Design Type: UI / UX
Time to Hire: 5