Onebrief · 9 hours ago
Senior Platform Engineer
United States
Full-time
Remote
Senior Level
5+ years expOnebrief is a collaboration and AI-powered workflow software company designed specifically for military staffs. They are seeking a Senior Platform Engineer to build and scale the foundations of their COTS application across government environments, enabling fast and reliable delivery while meeting stringent DoD requirements.
Information TechnologyMilitaryProductivity ToolsSoftware
No H1B
Security Clearance RequiredU.S. Citizen Only
Responsibilities
You’ll own the backbone of Onebrief’s COTS deployments: automate, secure, and scale the platform so product teams can move fast without breaking trust. You’ll do this by:
Building and automating the platform
Design, provision, and manage cloud and on‑prem environments with Terraform and Ansible; operate secure, resilient Kubernetes clusters for multi‑level deployments
Designing and evolving CI/CD
Reduce lead time and maintain strict gates and environment parity by improving pipelines in GitLab CI/CD, Jenkins, and GitHub Actions
Upholding reliability, security, and compliance
Partner with SREs to implement monitoring, logging, and alerting (Prometheus, Grafana, ELK/Datadog); embed RMF and STIG controls into automation and day‑to‑day operations
Operating and optimizing our footprint
Manage AWS/Azure/GCP resources and on‑prem networks. Balance cost, performance, and security while unblocking product teams
Supporting the team, documenting, and mentoring
Triage and resolve complex platform issues; write clear docs for architectures and runbooks; share context and mentor teammates
Qualification
Required
5+ years in Platform, DevOps, or Site Reliability Engineering with an infrastructure and operations focus
Proven partner to DevOps/SRE and application teams; collaborates well across functions and shares context openly
Clear, concise writing; strong documentation habits and async communication
Infrastructure as Code: Terraform (or CloudFormation), Ansible
Containers and orchestration: Docker; Kubernetes design, deployment, and operations
CI/CD: experience building and maintaining pipelines (GitLab CI/CD, Jenkins, GitHub Actions)
Scripting: proficiency with at least one of Python, Go, or Bash
Cloud and on‑prem: AWS, Azure, or Google Cloud; familiarity with on‑prem virtualization
Observability: Prometheus, Grafana, ELK stack, or Datadog
Networking fundamentals: core protocols and secure configurations
Must have a Secret Clearance and be eligible for a TS/SCI clearance
Preferred
Experience in DoD environments and compliance frameworks (RMF, STIGs, ICD 503)
GitOps practices and toolchains
Security‑minded design for sensitive environments
Service mesh exposure (Istio, Linkerd)
Relevant certifications (e.g., AWS DevOps Engineer, CKA/CKAD)
Strong interpersonal skills; comfortable collaborating across diverse teams
Company
Onebrief
Onebrief is an AI-powered platform that supports operational planning, collaboration, and decision workflows for military and command teams.
51-200 employees
Funding
Current Stage
Late StageTotal Funding
$311.04MKey Investors
Battery VenturesHuman Capital
2026-01-13Series D· $200M
2025-06-16Series C· $23.58M
2025-01-28Series C· $50M
Leadership Team
Grant Demaree
CEO and co-founder
Rafa Pereira
Co-founder and CTO
Recent News
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2026-01-20
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2026-01-16
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