Tier 3 Platform Engineer SME
Peraton · Chantilly, VA, US
About this role
## Tier 3 Platform Engineer SME — Peraton ### Overview Peraton is a next-generation national security company delivering mission-critical enterprise IT solutions across land, sea, space, air, and cyberspace. This role supports an Intelligence Community customer with a mission-critical enterprise software platform providing a standardized developer and user experience across multiple classified enclaves using a **zero trust, hub-and-spoke architecture**. ### Schedule - **Rotating shifts** within a **6:00 AM–6:00 PM** window - **Seven-day on-site coverage** - Participation in a **shared after-hours on-call rotation** ### Responsibilities - Establish **technical direction** and **engineering standards** for deployment, operation, and sustainment of enterprise platform infrastructure and shared services - Lead design, implementation, and optimization of platform capabilities across **hybrid cloud and on-premises**, including **Kubernetes-based container orchestration** - Provide technical oversight of **infrastructure as code**, **configuration management**, **automation**, and **CI/CD** for secure, scalable, repeatable deployments - Guide implementation and sustainment of **zero trust security controls** (identity-aware access, network segmentation, least-privilege) - Oversee onboarding/integration of mission tenants, applications, and shared services - Evaluate platform architecture, engineering practices, and operational processes to improve **availability, scalability, resiliency, security, and performance** - Serve as **Tier 3 escalation authority** for complex incidents (compute, storage, networking, identity, cloud infrastructure, container orchestration) - Lead **major incident response**, coordinating engineering teams, vendors, and partners to restore services within service levels - Direct **root cause analysis** and corrective actions to address systemic issues through engineering improvements and automation - Establish operational standards, technical procedures, and escalation practices to reduce recurring disruptions - Provide oversight of **observability** (centralized logging, metrics, alerting, dashboards, platform health monitoring) - Partner with cybersecurity leadership to ensure security controls and technical evidence align with **RMF authorization** and continuous **ATO** requirements - Provide technical leadership and mentorship to Senior/Mid-Level engineers; set expectations for quality, troubleshooting, documentation, and operational execution - Act as **shift lead**: coordinate daily operations, assign priorities, manage escalations, and ensure continuity across rotating shifts - Coordinate with program leadership and customer stakeholders on platform health, risks, incidents, dependencies, and improvements - Lead technical working sessions and collaborate with architecture, cybersecurity, development, and operations teams - Maintain and improve technical documentation, runbooks, incident response procedures, and knowledge management - Participate in rotating on-site shifts and shared after-hours on-call rotation ### Location **Fully onsite — Chantilly, VA** ### Required Qualifications - **Active TS/SCI clearance with Polygraph** - Bachelor’s degree (CS/Engineering/IS or related) with **12+ years** relevant experience (or **4 additional years** in lieu of degree) - Extensive experience engineering/operating/sustaining production enterprise platforms using **Kubernetes** (or Kubernetes-based orchestration) -
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