Senior Systems Architect (Top Secret cleared)

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., * 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.

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

Preferred Qualifications

• 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)

Professional Skills

• Strategic architectural thinking combined with hands-on technical depth
• Ability to balance mission requirements, security, and performance
• Leadership presence and comfort owning technical decisions
• Strong communication skills for both technical and non-technical audiences

#Li-cc1

ICF is a global advisory and technology services provider, but we're not your typical consultants. We combine unmatched expertise with cutting-edge technology to help clients solve their most complex challenges, navigate change, and shape the future. We can only solve the world's toughest challenges by building a workplace that allows everyone to thrive. We are an equal opportunity employer . Together, our employees are empowered to share their expertise and collaborate with others to achieve personal and professional goals. For more information, please read our EEO policy. We will consider for employment qualified applicants with arrest and conviction records., At ICF, we are committed to ensuring a fair interview process for all candidates based on their own skills and knowledge. As part of this commitment, the use of artificial intelligence (AI) tools to generate or assist with responses during interviews (whether in-person or virtual) is not permitted . This policy is in place to maintain the integrity and authenticity of the interview process.