External Job Posting Title Lead Platform Architect

Peraton; Chantilly, Northern (VA, KY); Hybrid; USD 146,000 - 234,000; Full time

Job summary

Peraton seeks a Lead Platform Architect to provide technical leadership across an ecosystem of platforms and services. You will define architectural boundaries, interfaces, and standards to enable cohesive enterprise capabilities, while allowing teams to own detailed implementations.

The role emphasizes flexibility for evolving needs and cross‑platform interoperability, with onsite work in Chantilly, VA and a focus on long‑term sustainability.

Qualifications

• Active TS/SCI clearance with CI Polygraph.
• 10–12 years of relevant experience in software, systems, or enterprise architecture.
• BS/BA plus 10 years of experience; degree equivalence may apply.
• Experience leading architecture across multiple interconnected systems or environments.
• Strong understanding of APIs, distributed systems, identity, networking, security boundaries, and software-delivery architectures.
• Experience with Kubernetes and containerized environments.
• Experience designing hybrid cloud/on‑prem architectures.

Responsibilities

• Lead architecture reviews spanning multiple engineering and platform teams.
• Partner with cybersecurity, DevSecOps, infra, and mission teams for alignment.
• Guide technology selection, modernization, and vendor‑independent decisions.
• Evaluate changes and assess impacts across systems and teams.
• Communicate architecture decisions, risks, and tradeoffs to leadership.
• Provide technical direction while allowing teams to own implementation.

Skills

APIs

Distributed systems

Identity

Networking

Security boundaries

Shared services

Software-delivery architectures

Kubernetes

Hybrid architectures

Architecture leadership

Education

BS/BA in a related field

Tools

GitLab

Job description

Responsibilities

We are seeking a Lead Platform Architect to provide technical leadership and architectural oversight across a complex ecosystem of interconnected platforms, shared services, and mission capabilities.

The Lead Platform Architect will define and maintain the overarching technical architecture that enables multiple platforms to operate as a cohesive enterprise capability. This role will establish architectural boundaries, interfaces, shared services, communication patterns, and technical standards, while enabling individual platform teams to maintain ownership of detailed implementation within their respective areas.

Because the platform ecosystem will continue to evolve, the Lead Platform Architect will design for flexibility, interoperability, and long-term sustainability, ensuring platforms can be added, replaced, consolidated, or retired without requiring broad redesign of the overall environment.

Responsibilities

Enterprise & Platform Architecture

• Define and maintain the overall technical architecture across cloud, on-premises, and security-domain environments.

• Establish architectural boundaries, responsibilities, interfaces, and shared-service patterns between platforms.

• Develop architecture patterns that allow individual platforms to evolve independently while minimizing unnecessary cross-platform dependencies.

• Maintain reference architectures, interface principles, technical standards, and architecture decision records.

• Ensure architectural decisions support long-term scalability, resilience, portability, supportability, and technology insertion.

Cross-Platform Architecture

• Define common architectural approaches for APIs, messaging, identity, authorization, service discovery, data exchange, observability, and software delivery.

• Identify capabilities that should be implemented as shared enterprise services rather than duplicated across individual platforms.

• Evaluate major design changes for cross-platform impacts and resolve architecture-level conflicts and dependencies.

• Establish architectural patterns that enable interoperability across diverse platforms and deployment environments.

• Balance standardization with the flexibility required for platform-specific implementation and mission needs.

Technical Leadership & Governance

• Lead architecture and technical-design reviews spanning multiple engineering and platform teams.

• Partner with platform leads, cybersecurity, DevSecOps, infrastructure, G2PS, ITSM, and mission engineering teams to ensure architectural alignment.

• Guide technology selection, modernization, and replacement decisions while minimizing unnecessary vendor-specific dependencies.

• Evaluate proposed technical changes and assess their impacts across systems, platforms, interfaces, and engineering organizations.

• Communicate architecture decisions, risks, dependencies, tradeoffs, and recommendations to program and customer leadership.

• Provide technical direction and architectural guidance while allowing platform-specific engineering teams to retain detailed implementation ownership.

Location: This position is fully onsite in Chantilly, VA

Qualifications

Required Qualifications

• Active TS/SCI clearance with CI Polygraph.

• Approximately 10–12 years of relevant experience in software, systems, platform, cloud, infrastructure, or enterprise architecture.

• Minimum of 10 years with BS/BA; an additional 4 years of experience may be considered in lieu of a degree.

• Demonstrated experience providing architecture leadership across multiple interconnected systems, platforms, or technical environments.

• Strong understanding of APIs, distributed systems, identity, networking, security boundaries, shared services, and software-delivery architectures.

• Strong experience with Kubernetes and containerized application environments.

• Experience designing hybrid architectures spanning cloud and on-premises infrastructure.

• Experience evaluating technical changes and their potential impacts across multiple systems and engineering teams.

• Strong architecture documentation, technical analysis, and communication skills.

Desired Qualifications

• Experience with AWS GovCloud, C2S, SC2S, Secret/Top Secret cloud, or comparable classified cloud environments.

• Experience with large-scale, multi-platform, or system-of-systems architecture.

• Experience with GitLab and enterprise software-factory architectures.

• Experience with SysML, UAF, or Model-Based Systems Engineering (MBSE).

• Experience with service mesh, event-driven architecture, or API gateways.

• NRO or Intelligence Community architecture experience.

Peraton Overview

Peraton is a next-generation national security company that drives missions of consequence spanning the globe and extending to the farthest reaches of the galaxy. As the world’s leading mission capability integrator and transformative enterprise IT provider, we deliver trusted, highly differentiated solutions and technologies to protect our nation and allies. Peraton operates at the critical nexus between traditional and nontraditional threats across all domains: land, sea, space, air, and cyberspace. The company serves as a valued partner to essential government agencies and supports every branch of the U.S. armed forces. Each day, our employees do the can’t be done by solving the most daunting challenges facing our customers. Visit peraton.com to learn how we’re keeping people around the world safe and secure.

Target Salary Range

$146,000 - $234,000. This represents the typical salary range for this position. Salary is determined by various factors, including but not limited to, the scope and responsibilities of the position, the individual’s experience, education, knowledge, skills, and competencies, as well as geographic location and business and contract considerations. Depending on the position, employees may be eligible for overtime, shift differential, and a discretionary bonus in addition to base pay.

EEO

EEO: Equal opportunity employer, including disability and protected veterans, or other characteristics protected by law.