Platform Engineer at Onebrief · LumiJobs

Responsibilities

Onebrief's infrastructure team owns the platform that delivers our software to military staffs. Our charter spans Kubernetes clusters in commercial and government cloud, application streaming for thin-client users on classified networks, a unified artifact pipeline that signs and ships the same builds to every environment we operate, and air-gapped appliances at forward sites.
We're hiring Platform Engineers who build security into the systems they operate rather than treating it as a separate workstream. You'll architect, build, and run the platform end to end. This includes RFCs, PRDs, and reviewing and writing production code alongside Product and Engineering teammates. The work cuts across cloud-native deployments, edge appliances, data platforms, and the application streaming layer that puts Onebrief on classified environments. You'll partner with Governance, Risk, and Compliance (GRC) and mission owners on STIGs, CVE remediation, audit prep, and the controls work that lets us operate in environments such as IL5, IL6, and JWICS.
Success means a platform that stays up under real operational load, ships trusted artifacts to every profile we run, and passes audits without fire drills.
Design, develop, test, iterate, and deploy secure production systems across cloud-native and edge appliance deployments
Embed with cross-functional teams and advise on infrastructure, security, and deployment best practices that hold up in production
Own end-to-end infrastructure outcomes for one or more critical programs or priority infrastructure initiatives
Harden the artifact pipeline so the same signed builds run in cloud, single-tenant high-side, and air-gapped appliance deployments
What We Look For
You'll do well in this role if you bring:
5+ years operating production infrastructure in DevOps/DevSecOps, Platform, SRE, Cloud, or Infrastructure roles
Full-stack engineering experience when necessary, e.g., production experience designing, building, and operating services in a modern backend language (e.g., Go, Python, Rust, TypeScript)
Deep production Kubernetes experience: operators, networking, storage, multi-cluster operations, and a feel for what breaks at scale

Platform Engineer

Responsibilities

Qualification

Required

Preferred

Company

Onebrief

More roles at Onebrief