{"id":1039816,"url":"https://alion.io/job/onyx-machine-learning-engineer-3","title":"Machine Learning 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":"2026-10-23T05:54:15Z"}},"role":"AI/ML","role_family":"AI/ML","seniority":"middle","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":250000,"currency":"USD","period":"year","gross":null,"usd_annual":250000},"salary_estimate":null,"experience_years_min":3,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Discord","optional":false},{"name":"Haystack","optional":false},{"name":"Knowledge Graph","optional":false},{"name":"LLM","optional":false},{"name":"Multimodal AI","optional":false},{"name":"NLP","optional":false},{"name":"PyTorch","optional":false},{"name":"RAG","optional":false},{"name":"Slack","optional":false},{"name":"TensorFlow","optional":false},{"name":"Confluence","optional":true},{"name":"GitHub","optional":true},{"name":"GitLab","optional":true},{"name":"Google Drive","optional":true},{"name":"JavaScript","optional":true},{"name":"Next.js","optional":true},{"name":"Notion","optional":true},{"name":"OpenAI","optional":true},{"name":"PostgreSQL","optional":true},{"name":"Python","optional":true},{"name":"React.js","optional":true},{"name":"TypeScript","optional":true}],"status":"live","first_seen_at":"2025-04-21T21:57:33Z","employer_posted_date":"2025-04-21","last_verified_at":"2026-10-23T09:05:24Z","board_verified":true,"closed_at":null,"days_open":549,"trust":{"level":"stale","repost_count":0,"flags":["stale"],"days_open":549},"description":"About the role\nYour impact\nOnyx is a popular open source project with hundreds of thousands of users. The project has over 10K stars and over 3K community members across Slack and Discord (these stats may already be out of date when you read this).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\nOnyx is the knowledge layer on top of LLMs. Help us improve our agent and knowledge retrieval capabilities to push the frontier on unsolved problems like multi-hop QA, needle in haystack, aggregation type RAG, etc. This is an in-person role based in San Francisco, CA.\nYou’ll be:\nEvaluating and implementing LLM based knowledge graphs, advanced RAG approaches (StructRAG, etc.), LLM agents, advances in NLP, multi-modal transformers, advanced information retrieval algorithms\n\nWorking on users’ experience with the platform through features like learn from feedback, search personalization, SME suggestion, etc.\n\nBuild a semantic and programmatically useful understanding of the organization's priorities, projects, and people as additional signals to the answering capabilities of Onyx\n\nOwn the approach from inception to validation to production code\n\nCollaborate with Founders and the Head of AI to shape and influence the direction of the product and contribute to the AI/ML engineering strategy\n\nYou’ll be successful if you…\nHave 3+ years of AI/ML engineering experience building real-world applications\n\nhave in-depth experience with PyTorch/Tensorflow, NLP models, and standard ML algorithms\n\nAre up date with new advances such as open source/proprietary LLMs, RAG and agent-frameworks\n\nStrong software engineering background and capable of building backend features with web frameworks, ORMs and relational DBs\n\nExcellent communication skills and ability to collaborate with full stack roles\n\n⭐ Bonus points\nFamiliar with the full stack Typescript/React/NextJS, Python, Postgres\n\nInterested in writing technical blogs to establish Onyx is leader in the space\n\nAbout the interview\nNon-technical Phone Screen (30 mins)\n\nML Interview (45 mins)\n\nPractical Coding Interview (30 mins)\n\nWork Trial (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 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":3140,"description_truncated":false,"requirements":{"experience_years_min":3,"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"}],"visa":[],"liveness":{"score":5,"band":"cold","label":"Long shot","p_open":1,"p_active":0.167,"p_room":0.28,"age_days":549,"expected_fill_days":23,"reasons":["conf:1","win:tail","crowd:"],"computed_at":"2026-10-23T05:54:15Z"},"pay":{"stated_usd_annual":250000,"is_top_pay":true},"html_url":"https://alion.io/job/onyx-machine-learning-engineer-3","json_url":"https://alion.io/job/onyx-machine-learning-engineer-3.json","meta":{"generated_at":"2026-10-23T13:28:51Z","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":20128,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-24T00:00:00Z"}},"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-machine-learning-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-machine-learning-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-machine-learning-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-machine-learning-engineer-3\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fonyx-machine-learning-engineer-3"}]}