{"id":16538,"url":"https://alion.io/job/mercor-infrastructure-engineer","title":"Infrastructure Software Engineer","company":{"id":4960,"name":"Mercor","domain":"mercor.com","url":"https://alion.io/company/mercor","size_band":"1001-5000","is_staffing_agency":false,"employer_type":"direct","is_intermediary":true,"listed_via":null,"ats_vendor":"Ashby","truth_index":{"grade":"A","score":88,"open_postings":15,"ghost_share":0,"stale_share":0.267,"repost_share":0,"time_to_fill_p50_days":76,"computed_at":"2026-10-28T05:59:10Z"}},"role":"DevOps","role_family":"DevOps","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":160000,"max":500000,"currency":"USD","period":"year","gross":null,"usd_annual":500000},"salary_estimate":null,"experience_years_min":2,"visa_sponsorship":false,"relocation_package":false,"has_equity":true,"technologies":[{"name":"AWS","optional":false},{"name":"CI/CD","optional":false},{"name":"Go","optional":false},{"name":"Kubernetes","optional":false},{"name":"PostgreSQL","optional":false},{"name":"Python","optional":false},{"name":"SLI/SLO/SLA","optional":false},{"name":"Terraform","optional":false}],"status":"live","first_seen_at":"2025-09-18T22:46:02Z","employer_posted_date":"2026-09-05","last_verified_at":"2026-10-28T16:30:19Z","board_verified":true,"closed_at":null,"days_open":404,"trust":{"level":"stale","repost_count":1,"flags":["stale"],"days_open":404},"description":"About Mercor\nMercor's mission is to organize human intelligence to power the AI economy. We're a leading AI data company, building the layer between human expertise and frontier models. Millions of domain experts on the platform are paid over $4 million per day to train frontier AI models. Mercor's APEX benchmark family measures AI's real-world impact on professional work. Mercor Enterprise brings this same infrastructure to Fortune 500 companies: helping companies capture how their best people actually work, translating that expertise directly back into agents.\nMercor is creating a new category of work where expertise powers AI advancement. Achieving this requires an ambitious, fast-paced and deeply committed team. You’ll work alongside researchers, operators, and AI companies at the forefront of shaping the systems that are redefining society. Mercor is a profitable Series C company valued at $10 billion. We work in-person five days a week in our San Francisco, NYC, or London offices.\nAbout the Role\nAs an Infrastructure Engineer at Mercor, you’ll build and scale the systems that power our rapid growth. You’ll ensure our infrastructure is highly available, cost-effective, and able to handle explosive traffic and compute demands. You’ll work closely with engineers across product, research, and operations to design scalable architectures, streamline deployments, and improve observability.\nThis is a software engineering role. You'll spend most of your time designing and writing the services, platforms, and tooling that the rest of engineering builds on, and the rest making sure they hold up in production.\nWe're hiring across Infrastructure: Platform, Developer Productivity, Production Engineering, Storage and Databases. We team-match after the first screen, so apply even if your background leans toward one area.\nWhat You'll Work On\nDesign and build the platforms that sit between our engineers and the outside world: multi-tenant services that give dozens of teams isolated capacity, routing, quotas, and observability on demand, owned from architecture review through production.\n\nBuild the internal platforms and solutions that product and research engineers rely on every day, from deploy tooling to on-call automation, and treat them with the same design and testing rigor as customer-facing code.\n\nScale our multi-tenant services that fronts every model provider we use, so dozens of internal teams and products get isolated quotas, routing, observability, and capacity on demand without filing a ticket.\n\nRun Temporal, Postgres, MongoDB, and our Kubernetes fleet at a scale where \"it worked last month\" isn't a guarantee, and design for the next 10x.\n\nOwn the reliability program: define SLOs that matter, kill noisy alerts, make CI/CD deploys boring, and turn every incident into a durable fix rather than a runbook entry.\n\nBuild the developer platform for an engineering org that ships dozens of times a day, and where coding agents are now first-class users of our CI, sandboxes, and deploy pipelines.\n\nDesign network and identity boundaries across production, preprod, and research compute so teams move fast without cross-environment risk.\n\nMake the cost picture legible: attribute spend across data centers, and inference providers, and find the architectural changes that bend the curve.\n\nBuild the tooling that lets the rest of engineering self-serve: our on-call is already AI-triaged and auto-assigned; you'll decide what gets automated next.\n\nWhat We're Looking For\nBachelor’s Degree in Computer Science or a related technical degree such as Electrical Engineering, Physics, Mathematics, Computer Engineering, Information Systems or Statistics\n\n2+ years of relevant industry experience\n\nWe care far more about how you reason about systems than which tools you've used. Strong candidates typically have:\n\nA deep grasp of reliability and scalability fundamentals: failure modes, backpressure, idempotency, capacity planning, and how distributed systems actually break under load.\n\nExperience operating production systems that real users depend on, and the scars to prove it.\n\nStrong software engineering fundamentals: you design systems before you build them, write code you're proud of in Python or Go, test it, and review others' code with care. Most of your recent work has been shipping software, not clicking through consoles.\n\nFamiliarity with cloud infrastructure (we're on AWS) and infrastructure-as-code (we use Terraform). You don't need to be an expert; you need to be curious and fast to pick it up.\n\nWorking knowledge of containers and how they're deployed. Kubernetes experience is a plus, not a gate.\n\nHigh ownership: you see a gap, you write the proposal, you ship it, you carry the pager for it.\n\nYou Might Be a Great Fit If\nYou're a backend engineer with strong infra fundamentals who keeps getting pulled toward the platform layer because that's where the hardest problems are.\n\nYou've been the person who understood why the system fell over when nobody else did.\n\nYou've built internal platforms or tooling that other engineers loved using.\n\nYou've operated databases, message queues, or workflow engines at meaningful scale.\n\nYou've come from backend or DevOps and want to own infrastructure end to end.\n\nHow We Work\nSmall, senior team with direct access to the head of infra and to engineering leadership.\n\nIn-person five days a week in SF. Infra is a team sport for us.\n\nWe use AI coding agents heavily and expect you to as well; the interesting work is deciding what they should do, not typing.\n\nWeekly on-call rotation with structured handoffs; on-call load is a metric we actively drive down.\n\nBenefits\nBi-annual performance bonus structure\n\nGenerous equity grant vested over 4 years\n\nUp to $15k Relocation bonus\n\n$10K housing bonus (if you live within 0.5 miles of our office)\n\n$1.5K monthly stipend for meals\n\nFree Equinox membership\n\n$200 monthly laundry reimbursement\n\n$200 monthly personal wellness reimbursement\n\nHealth, Dental, Vision insurance","description_format":"text","description_chars":6022,"description_truncated":false,"requirements":{"experience_years_min":2,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":{"level":"bachelor","optional":false},"security_clearance":false,"languages":[]},"benefits":["Equity","Vision insurance"],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":true,"industries":["Recruiting & Staffing","Freelance & Talent Marketplaces","AI Training Data & Annotation"],"lifecycle":[{"event":"open","at":"2025-09-18T22:46:02Z"},{"event":"close","at":"2026-09-04T05:32:26Z"},{"event":"reopen","at":"2026-09-05T18:10:37Z"}],"visa":[],"liveness":{"score":5,"band":"cold","label":"Long shot","p_open":1,"p_active":0.195,"p_room":0.28,"age_days":404,"expected_fill_days":76,"reasons":["conf:3","velocity","win:tail","crowd:junior,brand"],"computed_at":"2026-10-28T05:59:10Z"},"pay":{"stated_usd_annual":500000,"is_top_pay":true},"html_url":"https://alion.io/job/mercor-infrastructure-engineer","json_url":"https://alion.io/job/mercor-infrastructure-engineer.json","meta":{"generated_at":"2026-10-28T19:26:37Z","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":26858,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-29T00:00:00Z"}},"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":4960},"rest":"https://alion.io/mcp/rest/get_company?id=4960"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fmercor-infrastructure-engineer"},{"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%2Fmercor-infrastructure-engineer"},{"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%2Fmercor-infrastructure-engineer"},{"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/mercor-infrastructure-engineer\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fmercor-infrastructure-engineer"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":16538}},{"tool":"search_jobs","arguments":{"company":"mercor.com","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":16538},"note":"people open to offers who fit this vacancy"}],"note":"The same data through MCP tools: https://alion.io/mcp/open needs no sign-in (compact searches, postings, people); https://alion.io/mcp with an Alion account has everything. Docs: https://alion.io/developers"}}