Senior Security Systems Architect – Federal Programs (TS/Poly)

M.C. Dean, Inc.; City of Westminster; On-site; GBP 90,000 - 120,000; Full time

Job summary

M.C. Dean, Inc. is seeking a Senior Systems Technical Specialist to support federal customers across complex environments. The role involves defining, designing, and integrating systems, translating stakeholder needs into architectures and roadmaps, and leading verification and deployment activities.

You will collaborate with multidisciplinary teams and manage technical risks while supporting RMF accreditation and ATO maintenance. A Top Secret clearance or ability to obtain one is required.

Qualifications

• Experience applying systems engineering across full lifecycle, from stakeholder needs to transition.
• Ability to translate requirements into system concepts, architectures, and roadmaps.
• Experience with architecture frameworks and interfaces, data flows, and verification.
• Active Top Secret clearance or ability to obtain one, US citizenship required.
• Willingness to travel domestically and internationally up to 10%, on site four days per week.

Responsibilities

• Define, design, architect, integrate, test, and transition complex systems.
• Lead system integration, verification, validation, and deployment activities.
• Manage risk, issues, dependencies, and technical reviews across programs.
• Prepare technical briefings and status reports for government customers and leaders.
• Collaborate across software, hardware, cybersecurity, cloud, data, network, test, and operations teams.

Skills

Systems engineering

Agile methodologies

RMF accreditation

Requirements development

Stakeholder facilitation

SysML/UML diagrams

Architecture modeling

Acquisition lifecycle

Communication skills

Travel up to 10%

Clearance management

Education

Bachelor's degree in engineering or related field

Tools

SysML/UML workflow diagrams

Microsoft Office Suite

Job description

M.C. Dean, Inc. is seeking a Senior Systems Technical Specialist to support federal customers across complex environments. The role involves defining, designing, and integrating systems, translating stakeholder needs into architectures and roadmaps, and leading verification and deployment activities.

You will collaborate with multidisciplinary teams and manage technical risks while supporting RMF accreditation and ATO maintenance. A Top Secret clearance or ability to obtain one is required.