{"id":1039815,"url":"https://alion.io/job/onyx-fullstack-engineer-3","title":"Fullstack Engineer","company":{"id":853,"name":"Onyx","domain":"onyx.app","url":"https://alion.io/company/onyx","size_band":null,"is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Ashby","truth_index":{"grade":"B","score":75,"open_postings":4,"ghost_share":0,"stale_share":1,"repost_share":0,"time_to_fill_p50_days":null,"computed_at":"2026-10-17T05:46:00Z"}},"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":150000,"max":400000,"currency":"USD","period":"year","gross":null,"usd_annual":400000},"salary_estimate":null,"experience_years_min":1,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Discord","optional":false},{"name":"Knowledge Graph","optional":false},{"name":"LLM","optional":false},{"name":"Next.js","optional":false},{"name":"NLP","optional":false},{"name":"PostgreSQL","optional":false},{"name":"Python","optional":false},{"name":"Slack","optional":false},{"name":"TypeScript","optional":false},{"name":"AWS","optional":true},{"name":"Azure","optional":true},{"name":"Confluence","optional":true},{"name":"Docker","optional":true},{"name":"GCP","optional":true},{"name":"GitHub","optional":true},{"name":"GitLab","optional":true},{"name":"Google Drive","optional":true},{"name":"JavaScript","optional":true},{"name":"Kubernetes","optional":true},{"name":"Notion","optional":true},{"name":"OpenAI","optional":true},{"name":"React.js","optional":true}],"status":"live","first_seen_at":"2025-04-21T21:58:21Z","employer_posted_date":"2025-04-21","last_verified_at":"2026-10-18T10:47:58Z","board_verified":true,"closed_at":null,"days_open":544,"trust":{"level":"stale","repost_count":0,"flags":["stale"],"days_open":544},"description":"About the role\nYour impact\nOnyx is a popular open source project with hundreds of thousands of users. The project has over 13K stars and over 3K community members across Slack and Discord (these stats may already be out of date when you read this). You’ll have the opportunity to build in the open and your work may be used by millions of people in the future.\nAbout the role\nAs an early hire, you'll play a pivotal role in shaping the core product. Help us become the biggest “GenAI for work” application in the world. This is an in-person role based in San Francisco, CA.\nYou’ll be:\nBuilding a consumer grade UI experience for the GenAI Chat, Enterprise Search, Agents, and Admin features\n\nExtending the backend functionalities and APIs (see below)\n\nImproving the flexibility and quality of the search pipeline, building a semantic understanding of customer organizations, extending the current permission/access controls, and expanding the knowledge curation features\n\nImplementing the latest approaches in NLP research like LLM based Knowledge Graphs, StructRAG, Agent/Deep-Research, etc. to increase the range of questions the system can answer (AI / deep learning experience not required)\n\nOwn the entire development cycle of new features, from conception to production\n\nCollaborate with the founders and team to shape and influence the direction of the product and contribute to the engineering strategy\n\nYou’ll be successful if you…\nHave 1-5 years (or more) of software engineering experience building real-world applications\n\nKnow Typescript/React/NextJS, Python, Relational DBs (Postgres)\n\nEnjoy working in a fast moving startup with low amounts of process\n\nHave excellent communication skills, with a strong ability to collaborate with others (both teammates and external customers)\n\n⭐ Bonus points\nExperience with Docker/Kubernetes, cloud technologies (AWS, GCP, Azure), and on-prem/cloud deployments\n\nExperience (or even just interest) in AI (NLP, Deep Learning, GenAI) and information retrieval\n\nPrevious founder or early engineer at seed/series-A startup\n\nAbout the interview\nNon-technical Phone Screen (30 mins)\n\nPractical Coding Interview (45 mins)\n\nWork Trial (2-3 days in person, fully covered + compensated)\n\nAbout Onyx\nOnyx is the open source GenAI platform connected to your company's docs, apps, and people. We ingest and sync from all sources of information (Google Drive, Slack, GitHub, Confluence, Salesforce, etc.) to provide a centralized place for users to ask about anything. Imagine your most knowledgeable co-workers, all-rolled into one, and available 24/7!\nWe believe that every modern team will be adopting knowledge enhanced GenAI within the next 5 years and it is our goal to bring this technology to all the teams of the world.\nWe raised a $10M seed coming out of YCombinator, backed by Khosla Ventures (early/seed backers of OpenAI, Doordash, GitLab, etc.) and First Round Capital (Notion, Square, Roblox, etc.). Our customers include some of the best teams in the world like Netflix, Ramp, Applied Intuition and dozens of others. We also have incredible open source users like Roku, Zendesk, L3Harris and more.","description_format":"text","description_chars":3150,"description_truncated":false,"requirements":{"experience_years_min":1,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[]},"benefits":[],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":["AI Agents","Vector Search & RAG","AI Search"],"lifecycle":[{"event":"open","at":"2026-09-18T18:26:24Z"},{"event":"open","at":"2026-09-26T22:14:52Z"}],"visa":[],"liveness":{"score":2,"band":"cold","label":"Long shot","p_open":1,"p_active":0.088,"p_room":0.28,"age_days":543,"expected_fill_days":19,"reasons":["conf:4","win:tail","crowd:junior"],"computed_at":"2026-10-17T05:46:00Z"},"pay":{"stated_usd_annual":400000,"is_top_pay":true},"html_url":"https://alion.io/job/onyx-fullstack-engineer-3","json_url":"https://alion.io/job/onyx-fullstack-engineer-3.json","meta":{"generated_at":"2026-10-18T11:30:22Z","cache_seconds":300,"methodology":"https://alion.io/methodology","terms":"https://alion.io/terms","contact":"https://alion.io/contact","api":"https://alion.io/developers","about":"Alion is a live layer of people, companies and AI agents: who they are, whether they are real and active right now, what they do and how to work with them, readable by people and by agents and paid per call.","catalog":"https://alion.io/catalog.json","usage":{"tier":"crawler_verified","counted_by":"address","units_charged":1,"used_today":17043,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-19T00:00:00Z"}},"offers":[{"id":"company.slices","title":"One company in depth, by slice","status":"live","price":{"credits":0.02,"usd":0.002,"plus_per_slice":{"credits":0.05,"usd":0.005}},"unit":"per company, plus each slice with data","note":"the employer in depth","call":{"mcp_tool":"get_company","arguments":{"id":853},"rest":"https://alion.io/mcp/rest/get_company?id=853"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fonyx-fullstack-engineer-3"},{"id":"market.stats","title":"A market slice: pay, demand and time to fill","status":"live","price":{"credits":1,"usd":0.1},"unit":"per slice","note":"pay, demand and time to fill for this role and place","call":{"mcp_tool":"market_stats"},"human":"https://alion.io/catalog?offer=market.stats&for=job%2Fonyx-fullstack-engineer-3"},{"id":"job.search","title":"Open jobs by role, technology, place, pay and visa","status":"live","price":{"credits":0.02,"usd":0.002},"unit":"per posting in a list","note":"similar open postings","call":{"mcp_tool":"search_jobs"},"human":"https://alion.io/catalog?offer=job.search&for=job%2Fonyx-fullstack-engineer-3"},{"id":"company.verify","title":"Is this company real and active right now","status":"pilot","price":null,"unit":"per company","request":{"url":"https://alion.io/catalog/request","method":"POST","body":"{\"offer\": \"company.verify\", \"for\": \"job/onyx-fullstack-engineer-3\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fonyx-fullstack-engineer-3"}]}