{"id":449190,"url":"https://alion.io/job/primitive-email-infrastructure-engineer","title":"Email Infrastructure Engineer","company":{"id":173573,"name":"Primitive","domain":"primitive.dev","url":"https://alion.io/company/primitive-2","size_band":"51-200","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Work at a Startup","truth_index":null},"role":"DevOps","role_family":"DevOps","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":190000,"max":230000,"currency":"USD","period":"year","gross":null,"usd_annual":230000},"salary_estimate":null,"experience_years_min":3,"visa_sponsorship":false,"relocation_package":false,"has_equity":true,"technologies":[{"name":"AI Agents","optional":false},{"name":"Kubernetes","optional":false},{"name":"Linux","optional":false},{"name":"Rust","optional":true}],"status":"live","first_seen_at":"2026-09-06T08:13:34Z","employer_posted_date":"2026-10-22","last_verified_at":"2026-11-03T19:40:31Z","board_verified":true,"closed_at":null,"days_open":58,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":58},"description":"About primitive.dev\nprimitive.dev is building the communication layer for the agent economy. As AI agents increasingly act on behalf of people and businesses, companies need infrastructure to identify them, understand what they need, and interact with them at scale.\nWe rebuilt email from the ground up for machine-to-machine communication, optimizing the entire stack for latency, throughput, reliability, and developer experience. On top of that infrastructure, we deploy and operate agents for our customers. They begin as a general interface to the business, then learn from incoming traffic and create specialized agents to handle recurring workflows.\nWhat you'll do\nBuild the infrastructure that makes primitive.dev a full-scale email service provider. You will work across bare metal, Kubernetes, and the mail stack to build systems capable of moving billions of agent messages quickly and reliably. This role spans distributed systems, networking, SMTP, queues, deliverability, reputation, and abuse.\nWhat you bring\nYou have deep experience with Kubernetes, Linux, networking, and production infrastructure\nYou understand email systems, including SMTP, MTAs, queues, or deliverability\nYou are as comfortable writing production software as operating production infrastructure\nNice to have\nExperience operating high-volume email or messaging systems\nExperience with bare-metal infrastructure or Rust\nFormer founder\nCompensation\n$190k-$230k base salary plus equity. 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