Principal Engineer, Platform Engineering

Principal Engineer, Platform Engineering | Microsoft Careers Skip to main content Microsoft Careers Careers Careers Search Search jobs Sign in Single PositionView All JobsPrincipal Engineer, Platform EngineeringUnited States, Washington, RedmondApply nowAdd to cartFind out how well you match with this jobUpload your resumeJob descriptionCompany and benefitsJob number200042983Date postedJul 08, 2026Work site3 days / week in-officeTravelLess than 25%ProfessionSoftware EngineeringDisciplineSoftware EngineeringRole typeIndividual ContributorEmployment typeFull-TimeOverviewCome build, from scratch, the AI-first developer platform that lets thousands of engineers ship faster and safer.We're a new Platform Engineering team building an internal developer platform, golden paths, and the developer experience for the Microsoft engineering teams behind the world's largest and most complex commerce platforms. Empower the teams that build the copilots and agents that tens of thousands of sellers, partners, and support people rely on around the world every day — global scale and reach with unbounded opportunity to make meaningful impact. The mandate is real, and the appetite is there, from leaders and teams: take the KTLO and toil out of engineers' days, make safe deployment the easy path, and make agent-driven workflows the default for how we build.We run the platform as a product — teams pick it up because it's useful, not because they're told to. What's open is the technical frontier: agents change what a platform can even do. A platform used to be bounded by what you could deterministically wire across systems, with the gaps left to people to glue by hand. Now agents can carry that ambiguous, cross-system work, and building greenfield, we get to work out how much more a platform can take on.If you'd rather ship and learn than ask permission, and you're as curious about what teams and work become in this shift as you are about the tech itself, this is the rare seat where you get to define the thing, not just run it.Why this roleYou'll make thousands of engineers faster. You build the golden paths, templates, and shared foundation (identity, secrets, observability, safe deployment) so every team gets them by default instead of wiring them up each time. It's a 0→1 build, not maintenance.Agents do the wiring; you make the calls. One agent stands up a fully-wired service the moment a repo is created, and other tooling migrates existing services onto the foundation for you. You direct the agents and the codegen, and the architecture is yours.You own a real piece of it. Take a capability area that several teams use — the service-creation agent, the migration tooling, or the per-PR test environments — and see it through in production, including getting those teams onto it.ResponsibilitiesWork with platform and product teams to turn developer pain points into golden paths, templates, and shared capabilities they'll adopt.Lead the design of a capability area or agent workstream that several teams depend on: the dependencies, the interfaces, the design docs, and maintainable code others build on.Build and operate the agent and codegen tooling that wires new and existing services onto the foundation (identity, secrets, observability, safe deployment) by default.Own what you ship in production, including on-call. Watch for regressions, config drift, and integration failures, and fix them.Keep raising availability, reliability, observability, and performance, and bring what you learn back to the team.Mentor other engineers and hold the "platform as a product" bar.What we're looking forStrong engineering fundamentals, with production systems you've built and run at scale.AI-native. You've shipped real production software built with generative AI and agents (not just demos), and you have the judgment to direct them.Depth in one of identity, secrets...