Jobs · Engineering · California

Founding Full-Stack Engineer

Helium · San Francisco, CA · 6 mo ago
On-siteEngineering$6/hrFull-time

What You’ll Do

  • Adds new features to the front-end Next.js application
  • Deploys scalable Golang code that serves thousands of requests each second globally
  • Tunes/Optimizes/Load tests our servers as we 10x our growth from tens of millions to hundreds of millions of users per day
  • Designs data systems and ML training infrastructure that power automated experimentation at scale
  • Works directly with founders and customers to design, implement, and deliver the best experiences
  • Wears a lot more hats than listed above

What We’re Looking For

  • Keen problem solving skills: able to cut down ambiguous problems down to first principles and deliver a working solution
  • Strong programming/full-stack foundation: comfortable working on both backend code as well as frontend React code
  • Experience working directly on user-facing products: able to figure out and understand what the user needs, including talking to customers
  • Stellar cross-functional communication skills: able to adapt to our ways of working and be an efficient/effective communicator
  • Owning features end to end: writes own PRDs/quick specs and tests features end to end to make sure they work and satisfy the requirements

Nice To Haves

  • Experience with ML/AI/LLM integration in applications
  • Experience building scalable backend systems with very demanding SLAs
  • Background working with design tools, chat experiences, or vibe coding tools
  • Previous experience founding or working at a high-growth startup

Reasons This Role Might Not Be A Fit

  • You want to work 9-5
  • You avoid Cursor or AI coding tools
  • You can only operate on well-written specs or feel uncomfortable designing new experiences from scratch
  • You don’t want to talk to customers

Our Stack

  • Next.js (React/Typescript)
  • ZustandAI (vercel) SDK
  • Tailwind
  • Shadcn
  • Supabase
  • Clickhouse
  • Golang
  • Fly.io
  • Mobile: Swift, Flutter, Expo, Android

Requirements

Requires Bachelors degree or higher in Computer Science or similar fields.

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