{"id":144196,"url":"https://alion.io/job/helium-founding-full-stack-engineer","title":"Founding Full-Stack Engineer","company":{"id":20334,"name":"Helium","domain":"tryhelium.com","url":"https://alion.io/company/helium","size_band":"1-10","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Work at a Startup","truth_index":null},"role":"Backend","role_family":"Backend","seniority":"junior","employment_type":"full_time","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["San Francisco, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":125000,"max":200000,"currency":"USD","period":"year","gross":null,"usd_annual":200000},"salary_estimate":null,"experience_years_min":1,"visa_sponsorship":false,"relocation_package":false,"has_equity":true,"technologies":[{"name":"Go","optional":false},{"name":"Next.js","optional":false},{"name":"OpenAI","optional":false},{"name":"React.js","optional":false},{"name":"ClickHouse","optional":true},{"name":"Cursor","optional":true},{"name":"Dart","optional":true},{"name":"Flutter","optional":true},{"name":"Fly.io","optional":true},{"name":"JavaScript","optional":true},{"name":"LLM","optional":true},{"name":"Radix UI","optional":true},{"name":"shadcn/ui","optional":true},{"name":"Supabase","optional":true},{"name":"Tailwind CSS","optional":true},{"name":"TypeScript","optional":true},{"name":"Zustand","optional":true}],"status":"live","first_seen_at":"2026-08-28T07:57:31Z","employer_posted_date":"2026-10-12","last_verified_at":"2026-10-16T21:33:46Z","board_verified":true,"closed_at":null,"days_open":49,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":49},"description":"Helium is building Self-Improving Software: AI that automatically generates & tests new software experiences to lift revenue. We’re…\nTalent-dense (8 people, 6 engineers, 75% ex-founders)\n\nWell-funded ($6M from Google & Leaders from OpenAI)\n\nFast-growing (Serving tens of millions of AI experiences per day for top consumer companies).\n\nAI has created a once-in-history opportunity, and we’re here to win, because of that…\nWe work hard - In-Office Monday-Friday + often push through weekends\nWhat You’ll Do\nYou’ll own big chunks of our AI Experience Generation product serving millions of users per day, including…\nAdding new features to the front-end Next.js application and deploying scalable Golang code that serves thousands of requests each second globally.\nTune/Optimize/Load test our servers as we 10x our growth from tens of millions to hundreds of millions of users per day.\nDesigning data systems and ML training infrastructure that power automated experimentation at scale.\nWork directly with founders and customers to design, implement, and deliver the best experiences!\nWearing a lot more hats than listed above .\nWhat We’re Looking For\nKeen problem solving skills: you are able to cut down ambiguous problems down to first principles and deliver a working solution.\nStrong programming/full-stack foundation: You’re comfortable working on both backend code as well as frontend React code.\nExperience working directly on user-facing products: you are able to figure out and understand what the user needs, including talking to customers\nStellar cross-functional communication skills: you are able to adapt to our ways of working and be an efficient/effective communicator.\nOwning 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\nNice To Haves\nExperience with ML/AI/LLM integration in applications\nExperience building scalable backend systems with very demanding SLAs\nBackground working with design tools, chat experiences, or vibe coding tools\nPrevious experience founding or working at a high-growth startup\nReasons This Role Might Not Be A Fit\nYou want to work 9-5\nYou avoid Cursor or AI coding tools.\nYou can only operate on well-written specs, or feel uncomfortable designing new experiences from scratch.\nYou don’t want to talk to customers.\nOur stack:\nNext.js (React/Typescript), Zustand\nAI (vercel) SDK\nTailwind/Shadcn\nSupabase\nClickhouse\nGolang/ Fly.io\nMobile: Swift, Flutter, Expo, Android\nRequires Bachelors degree or higher in Computer Science or similar fields.","description_format":"text","description_chars":2601,"description_truncated":false,"requirements":{"experience_years_min":1,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":{"level":"bachelor","optional":false},"security_clearance":false,"languages":[]},"benefits":[],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":["E-commerce Marketing","Marketing & Sales AI","A/B Testing & 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