What You’ll Do

You will be building an AI paywall editor that serves millions of customers everyday, including touching the front-end Next.js application and back-end high performance Golang server.
Writing and deploying scalable Golang code that serves thousands of requests each second globally.
Tuning and load testing servers to ensure that global performance is fast as possible for end users.
Designing data systems that power experimentation tools for users, and ML training infrastructure.
Work cross functionally with the founders, and directly with customers, to design, implement, and deliver the best experiences!
Wearing a lot more hats than listed above 👷.

What We’re Looking For

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

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’re uncomfortable with ambiguity, or need super structured requirements
You prefer to only one part of the stack, and aren’t willing to work across everything
You’ve never worked on systems with many moving parts: Our software has many different moving parts that you will be required to ramp up on
You’ve never built an end to end feature you’re really proud of

Requirements

You have 1-4+ years of engineering experience, with a strong track record of shipping real products.

🔴 Note 🔴
- This is a full-time, in-person role based in San Francisco - we work from the office 6 days a week (Mon-Sat)
- You must be based in the Bay Area or willing to relocate before starting.
- We require US work authorization, but are open to O-1 visa sponsorship for truly exceptional candidates.

Our stack:

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

Helium is building self-improving software.

We previously led AI & Growth teams at Uber, Meta, and Amazon, and we saw how long it takes to go from idea to experiment for these large companies.

We’re building Helium to automate the end-to-end process of generating and experimenting on new in-app experiences.

We’re starting by automating generating onboarding flows for consumer apps, then will expand into other experiences across the app. We work with some of the largest, fastest-growing consumer apps, serving Helium experiences to millions of users worldwide.

Our momentum:

Launched publicly in June '25. Growing X00% month over month since.
Working with leading consumer companies, serving experiences to millions of users daily.
Backed by >$5M from Y Combinator, Google’s AI fund, and leaders from Uber, OpenAI, Meta, and more.