Mission-Critical Systems Architect (Top Secret/SCI)

Leidos; Englewood (CO); On-site; USD 108,000 - 195,000; Full time

Job summary

Leidos seeks a Sr. Systems Architect in Colorado to shape architecture strategy for mission-critical IT programs in an Agile setting.

You will transform complex operational requirements into viable design artifacts, collaborating with engineers, product owners, testers, and stakeholders. The role demands deep enterprise architecture expertise, strong communication, and the ability to drive architectural quality across system, data, and security domains, while aligning with IC directives.

Qualifications

• US citizenship is required per contract.
• Bachelor's degree in CS/CE/Systems Engineering or related field with 8–12 years of experience.
• Active Top Secret/SCI clearance with ability to pass a polygraph.
• Experience designing and implementing complex, enterprise-scale systems.
• Ability to map and manage traceability between design artifacts and requirements.
• Experience with architecture tools: Sparx EA, Cameo, MagicDraw.

Responsibilities

• Analyze and mature existing IT architecture baselines into scalable design models.
• Develop and govern architecture documentation across system, data, and security domains.
• Establish and maintain traceability between architectural artifacts, mission requirements, and deployed solutions.
• Utilize industry-standard architecture development tools to generate and manage blueprints/diagrams.
• Lead architectural planning, review, and execution for programs.

Skills

Enterprise architecture

Stakeholder communication

Agile methodologies

SAFe

Education

Bachelor's degree in Computer Science, Computer Engineering, Systems Engineering or related technical discipline

Master's degree in related field

Tools

Sparx EA

Cameo

MagicDraw

Job description

Leidos seeks a Sr. Systems Architect in Colorado to shape architecture strategy for mission-critical IT programs in an Agile setting.

You will transform complex operational requirements into viable design artifacts, collaborating with engineers, product owners, testers, and stakeholders. The role demands deep enterprise architecture expertise, strong communication, and the ability to drive architectural quality across system, data, and security domains, while aligning with IC directives.