iOS Engineer (Contract)
iOS Engineer (Contract) at Helium — San Francisco, CA, US
- Company: Helium
- Location: San Francisco, CA, US
- Employment type: CONTRACTOR
- Salary: USD 50–125 / year
- Posted: 2026-07-17
About this role
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).
What You’ll Do
You’ll help build our platform to auto-generate mobile experiences. Specifically, you’ll be in charge of big chunks of our mobile SDKs.
Own the iOS/React Native mobile experience for Helium customers
Launch new features (e.g. remote onboarding experiences) to help our customers automate mobile optimization
Come up with new ways to improve SDK reliability, speed, and usability, and work directly with customers to get feedback and improve their experince.
Own documentation, Release maintenance, CI/CD, Testing, Google Play/Android billing
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 mobile eng foundation: You have plenty of experience building mobile apps on the App Store, and using SDKs (RevenueCat, Amplitude, Segment, Stripe, Firebase)
Experience working with Apple In-App purchases.
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
Customer obsession: you think deeply about the devex of SDKs, you answer questions, jump on issues, and use customer feedback to build excellent products.
Nice To Haves
Experience working on mobile SDKs (release maintenance, docs, etc)
Experience with Flutter and Android app development
Experience with native modules/bridging logic
Experience working on open source, or non-mobile experiences
Experience working on mobile webview tech (if you’ve figured out a cool way to make Android webviews feel almost native, get in touch)
Experience working with mobile analytics tools (Amplitude, Segment, Statsig, etc)
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), Zustand
AI (vercel) SDK
Tailwind/Shadcn
Supabase
Clickhouse
Golang/Fly.io
Mobile: Swift, Flutter, Expo, Android
Requires Bachelors degree or higher in Computer Science or similar fields.