Founding Full-Stack Engineer

Helium (Automate paywall testing) provided pay range

This range is provided by Helium (Automate paywall testing). Your actual pay will be based on your skills and experience — talk with your recruiter to learn more.

$/yr - $/yr

Helium is building Self-Improving Software: AI that automatically generates & tests new software experiences to lift revenue. We’re…

• Talent-dense (8 people, 6 engineers, 75% ex-founders)
• Well-funded ($6M from Google & Leaders from OpenAI)
• Fast-growing (Serving tens of millions of AI experiences per day for top consumer companies)
• We work in-person in our SF office 6 days per week (Mon-Sat)

• Adding new features to the front-end Next.js application and deploying scalable Golang code that serves thousands of requests each second globally.
• Writing and deploying scalable Golang code that serves thousands of requests each second globally.
• Tune/Optimize/Load test our servers as we 10x our growth from tens of millions to hundreds of millions of users per day.
• Designing data systems and ML training infrastructure that power automated experimentation at scale.
• Work directly with founders and customers to design, implement, and deliver the best experiences!
• Wearing a lot more hats than listed above 👷.

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

• 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.

• 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.

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

Mid-Senior level

Full-time

Engineering and Information Technology

Software Development

Referrals increase your chances of interviewing at Helium (Automate paywall testing) by 2x.

Apply BELOW