Senior Systems Architect (Top Secret cleared)

ICF • Washington, DC

3d • Remote

About The Position

We are seeking a Senior Systems Architect to provide enterprise/system architecture oversight for a mission-critical government environment. This role is responsible for end-to-end technical architecture, ensuring solutions are secure, scalable, high-performing, and integration-ready across cloud and hybrid platforms. The Senior Systems Architect partners with engineering, DevSecOps, cybersecurity, and stakeholders to define target-state architecture, guide implementation, and ensure delivery aligns to program requirements and architecture standards.

Requirements

• 10+ years of experience in systems architecture, solution architecture, or enterprise architecture roles
• Active Top Secret / SCI clearance.

Nice To Haves

• Bachelor's Degree in related field
• Prior experience supporting DCSA or similar national security programs
• Demonstrated experience designing and overseeing high-scale, high-availability systems
• Strong hands-on knowledge of AWS services and cloud architecture patterns
• Experience enabling or integrating with CI/CD tools and DevSecOps practices
• Experience with infrastructure as code and automation (e.g., Terraform, CloudFormation)
• Expertise using architecture frameworks (e.g., TOGAF, DoDAF, Zachman, or equivalent) and producing architecture artifacts (logical/physical views, roadmaps, standards)

Responsibilities

• Lead system and solution architecture efforts across one or more product lines or mission systems.
• Establish and maintain architecture standards, reference architectures, patterns, and guardrails.
• Provide technical governance through architecture reviews, design approvals, and technical decision records.
• Architect and guide integrations across internal and external systems (APIs, event streaming, data exchange).
• Ensure interoperability, data flows, and interface control documentation (ICDs) align with program needs.
• Define integration patterns for legacy modernization and cloud adoption.
• Define cloud landing zone/target architectures in AWS, including network, identity, security, compute, and data services.
• Support cloud migration/modernization strategies and trade-off analyses (cost, performance, risk).
• Ensure architecture aligns with security requirements and compliance frameworks as applicable to the program.
• Collaborate with cybersecurity teams to address threats, vulnerabilities, and risk mitigations in designs.

Benefits

• We will consider for employment qualified applicants with arrest and conviction records.
• Reasonable Accommodations are available, including, but not limited to, for disabled veterans, individuals with disabilities, and individuals with sincerely held religious beliefs, in all phases of the application and employment process.

What This Job Offers

• Job Type: Full-time
• Career Level: Senior
• Number of Employees: 1,001-5,000 employees