{"id":1222186,"url":"https://alion.io/job/matx-infrastructure-engineer-ai-tooling","title":"Infrastructure Engineer, AI Tooling","company":{"id":1776304,"name":"MatX","domain":"matx.com","url":"https://alion.io/company/matx-com","size_band":"51-200","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Ashby","truth_index":null},"role":"DevOps","role_family":"DevOps","seniority":null,"employment_type":"full_time","work_mode":"hybrid","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Mountain View, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":120000,"max":275000,"currency":"USD","period":"year","gross":null,"usd_annual":275000},"salary_estimate":null,"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"LLM","optional":false},{"name":"Slack","optional":false},{"name":"Bazel","optional":true},{"name":"Wi-Fi","optional":true}],"status":"live","first_seen_at":"2026-09-22T21:54:50Z","employer_posted_date":"2026-09-22","last_verified_at":"2026-09-26T00:53:02Z","board_verified":true,"closed_at":null,"days_open":3,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":3},"description":"What MatX is Building\nMatX's mission is to make the world’s best AI models run as efficiently as allowed by physics, bringing the world years ahead in AI quality and availability. MatX builds custom silicon for training and running the world's largest AI models, with hardware/software co-design across ISA, RTL, simulator, compiler, and kernels. The AI tooling team sits across that whole stack and owns the agent harnesses and shared workflows that turn general-purpose coding agents into ones maximally useful on each layer.\nAbout the position\nEvery engineering team using coding agents sits somewhere between watching every command and waking up to agent-written PRs waiting for review. What moves teams along this trust curve is how far engineers can trust their agents' judgment. An agent's judgment is only as good as its context and its ability to verify its work. However, context can be spread all over (think repos, design docs, Slack threads); the builds and simulations an agent needs to check its work may only be available on machines it can’t reach. You'd build infrastructure to address these gaps, at a company small enough your work reaches every engineer.\nWhat You'll Do Here:\nMake agents legible, first-class users of our infrastructure. Each one gets an identity of its own, reaches exactly what its task needs and nothing else, and leaves a trail a person can later audit.\n\nBuild environments for our agents to run in, e.g. short-lived VMs that exist for one task and no-egress sandboxes for long runs.\n\nBuild our company agent knowledge base, the context agents start tasks with and the place they go to get more. Pull together information spread across our monorepo, design docs, and Slack and structure it for agent consumption.\n\nWho You Are:\nHave run production infrastructure somewhere dynamic and know which shortcuts you’ll regret.\n\nUse coding agents heavily and have strong opinions on what you let them do, what you don't, and how you verify their work.\n\nBuilt engineering workflows (methodology, flow automation, review tooling, agent harnesses) that other engineers adopted and kept.\n\nNotice LLM agents asserting something confidently wrong and modify their harness in response.\n\nBonus Points If You Have:\nHave operated Bazel remote execution or a remote cache.\n\nAre familiar with sandboxing and ephemeral compute for untrusted workloads.\n\nCompensation\nThe US base salary for this full-time position is determined based on a variety of factors including role, experience, location, job related skills, and relevant education and training. Career length is only a guideline for compensation.\nEarly Career - $120,000 - $275,000 + equity\n\nMid Career - $175,000 - $450,000 + equity\n\nSenior Career - $275,000 - $600,000 + equity\n\nWhat We Offer\nTime off: 4 weeks PTO (accrued) + 12 company Holidays + up to 3 weeks remote work\n\nHealth: Company-subsidized Medical (Kaiser or Anthem) for employees & dependents, Guardian Dental and Vision insurances for employee & dependents, and life insurance (employee only), plus HSA and FSA offerings via Lively.\n\nFinancial Wellbeing: Choose from Roth IRA or 401K (or both) retirement plans with up to 5% company contribution to 401K (even if you don't contribute). Also, 100% company-paid life insurance (up to $300K) and long-term disability insurances.\n\nProfessional Development: $1500 Professional Development Budget (per year)\n\nTeam Meals: MatX provides onsite team lunch & dinner Monday - Friday, with your choice of ordering via WeBox, Specialty’s or via our reimbursement system\n\nCommute on Us: Commute on our company Uber account, or reimburse your train rides. Either way, we pay 100% for your daily commute.\n\nMatX E[x]tras: $50/mo to use on the perk you value most\n\nCell & Internet Reimbursement: $35/mo for cellular and $40/mo for wifi\n\nRemote Home Setup: Use our Amazon business account for up to $1000 in office setup purchases.\n\nMental Wellbeing: 100% paid mental health benefit via SpringHealth and Guardian EAP.\n\nSupport to Parents: Up to 12 weeks paid parental leave regardless of path to parenthood, 10 weeks pregnancy disability leave, flexible return-to-work hours, and Benepass reproductive health & parental benefit.\n\nAs part of our dedication to the diversity of our team and our focus on creating an inviting and inclusive work experience, MatX is committed to a policy of Equal Employment Opportunity and will not discriminate against an applicant or employee on the basis of race, color, religion, creed, national origin or ancestry, sex, gender, gender identity, gender expression, sexual orientation, age, physical or mental disability, medical condition, marital/domestic partner status, military and veteran status, genetic information or any other legally recognized protected basis under federal, state or local laws, regulations or ordinances.\n---------\nThis position requires access to information that is subject to U.S. export controls. This offer of employment is contingent upon the applicant's capacity to perform job functions in compliance with U.S. export control laws without obtaining a license from U.S. export control authorities.\n--------\nMatX does not accept unsolicited resumes from individual recruiters or third-party recruiting agencies in response to job postings. No fee will be paid to third parties who submit unsolicited candidates directly to our hiring managers or People team and any resumes submitted are deemed to be the property of MatX.","description_format":"text","description_chars":5466,"description_truncated":false,"requirements":{"experience_years_min":null,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[]},"benefits":["401k plan","Equity","Internet reimbursement","Life insurance","Parental leave","Professional development","Retirement plans","Vision insurance"],"hiring_locations":[{"name":"United States","iso":"US","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":[],"lifecycle":[{"event":"open","at":"2026-09-25T12:29:18Z"}],"liveness":{"score":86,"band":"hot","label":"Hiring now","p_open":1,"p_active":0.86,"p_room":1,"age_days":3,"expected_fill_days":42,"reasons":["conf:1","win:early"],"computed_at":"2026-09-26T02:08:22Z"},"pay":{"stated_usd_annual":275000,"is_top_pay":true},"html_url":"https://alion.io/job/matx-infrastructure-engineer-ai-tooling","json_url":"https://alion.io/job/matx-infrastructure-engineer-ai-tooling.json","meta":{"generated_at":"2026-09-26T02:08:22Z","cache_seconds":300,"methodology":"https://alion.io/methodology","terms":"https://alion.io/terms","contact":"https://alion.io/contact","api":"https://alion.io/developers","usage":{"tier":"crawler","counted_by":"address","units_charged":1,"used_today":2140,"day_limit":5000,"remaining_today":2860,"minute_limit":60,"resets_at":"2026-09-27T00:00:00Z"}}}