Senior Systems Engineer - TS/SCI, Cross-Domain, 25% Travel

Government Technical Services Corporation; Fairfax (VA); Hybrid; USD 145,000 - 165,000; Full time

Benefits offered by this job

Paid vacation

Flexible Spending Account

401(k) with employer match

Life insurance

Disability insurance

Tuition assistance

Job summary

GTSC Bowen Group is seeking a Systems Engineer to work across networking, infrastructure, cybersecurity, cloud, applications, data, and operations to ensure a secure, resilient, and supportable system in the Washington DC metro area, with travel to program locations. This execution-oriented role supports a fast-paced prototype effort with milestone-driven deliverables.

A TS clearance with SCI eligibility and SAP eligibility is required, along with 8+ years in enterprise IT systems and strong

Qualifications

• 8+ years of experience designing, integrating, testing, or sustaining complex enterprise IT systems, including in classified environments.
• Bachelor's degree in Systems Engineering, Computer Science, Information Technology, Engineering, or a related field.
• Demonstrated experience managing system requirements, interfaces, dependencies, configurations, and technical documentation.
• Experience integrating capabilities across network, infrastructure, cybersecurity, cloud, application, identity, or data domains.
• Experience engineering capabilities for SCIF or other accredited classified environments, including multi-enclave systems and security boundaries.
• Working knowledge of the Risk Management Framework (NIST SP 800-37 / 800-53) and experience advising senior leaders.
• Active Top Secret Clearance (SCI eligibility) required.

Responsibilities

• Enumerate and document the technical baseline across geographically dispersed sites, including systems, services, interfaces, dependencies, security boundaries, and enclaves.
• Translate mission and stakeholder needs into clear, measurable, testable, and traceable system requirements.
• Develop current-state, transition-state, and target-state system designs that integrate network, infrastructure, cybersecurity, cloud, application, identity, and data capabilities.
• Define system boundaries, interfaces, data flows, assumptions, constraints, and performance requirements across engineering disciplines.
• Conduct technical analyses and trade studies addressing capability, interoperability, security, resilience, cost, schedule, risk, and lifecycle impacts.
• Develop and execute integration, verification, validation, and acceptance plans demonstrating that delivered capabilities satisfy mission and operational requirements.
• Establish and maintain system configurations, technical baselines, architecture products, interface documentation, and engineering decision records.
• Coordinate with engineering leads, operators, security personnel, and government stakeholders to identify and resolve cross-domain technical issues.
• Develop automated methods for system provisioning, integration, testing, configuration validation, monitoring, compliance assessment, and recovery to improve consistency and reduce manual effort.

Skills

Systems engineering

Requirements analysis

Documentation

Security clearance

Cross‑domain

Education

Bachelor's degree in Systems Engineering or related field

Job description

Fairfax, United States | Posted on 09/29/2026

GTSC Bowen Group seeksa skilled Systems Engineer to design, integrate, validate, and sustain enterprise IT capabilities across a network of new and existing secure facilities.

Location: Washington, DC metro area, with travel to program locations.

Security Clearance: Current Top Secret with SCI-eligibility and Special Access Programs (SAP) eligibility.

Travel: 25-50% travel to support activities across multiple program locations.

Certifications: None required.

Salary Range: $145,000-165,000

Mission

The Systems Engineer will work across networking, infrastructure, cybersecurity, cloud, applications, data, and operations to ensure that individual components function together as a secure, resilient, and supportable system. This is an execution-oriented role supporting a fast-paced, milestone-driven prototype effort with near-term deliverable commitments. Success requires systems thinking, disciplined technical analysis, effective communication, and the ability to manage requirements, interfaces, dependencies, risk, and lifecycle considerations.

Qualifications

• 8+ years of experience designing, integrating, testing, or sustaining complex enterprise IT systems, including in classified environments.
  
• Bachelor's degree in Systems Engineering, Computer Science, Information Technology, Engineering, or a related field.
  
• Demonstrated experience managing system requirements, interfaces, dependencies, configurations, and technical documentation.
  
• Experience integrating capabilities across network, infrastructure, cybersecurity, cloud, application, identity, or data domains.
  
• Experience engineering capabilities for SCIF or other accredited classified environments, including multi-enclave systems and security boundaries.
  
• Working knowledge of the Risk Management Framework (NIST SP 800-37 / 800-53) and experience advising senior leaders.
  
• Active Top Secret Clearance (SCI eligibility) required.
  

Nice to Have:

• Relevant systems engineering, architecture, or cybersecurity certification.
  
• Experience integrating cross-domain solutions (CDS) into enterprise architectures.
  
• Experience supporting Special Access Program (SAP) facilities, systems, or environments.
  
• Experience designing or standing up network or security operations centers (NOC/SOC), including 24x7 coverage models.
  

Primary duties include:

• Enumerate and document the technical baseline across geographically dispersed sites, including systems, services, interfaces, dependencies, security boundaries, and classified and unclassified network enclaves.
  
• Translate mission and stakeholder needs into clear, measurable, testable, and traceable system requirements.
  
• Develop current-state, transition-state, and target-state system designs that integrate network, infrastructure, cybersecurity, cloud, application, identity, and data capabilities.
  
• Define system boundaries, interfaces, data flows, assumptions, constraints, and performance requirements across engineering disciplines.
  
• Conduct technical analyses and trade studies addressing capability, interoperability, security, resilience, cost, schedule, risk, and lifecycle impacts.
  
• Develop and execute integration, verification, validation, and acceptance plans demonstrating that delivered capabilities satisfy mission and operational requirements.
  
• Establish and maintain system configurations, technical baselines, architecture products, interface documentation, and engineering decision records.
  
• Coordinate with engineering leads, operators, security personnel, and government stakeholders to identify and resolve cross-domain technical issues.
  
• Develop automated methods for system provisioning, integration, testing, configuration validation, monitoring, compliance assessment, and recovery to improve consistency and reduce manual effort.
  

FOUNDATIONAL SKILLS

• Systems engineering lifecycle principles and systems thinking.
  
• Requirements analysis, decomposition, allocation, and traceability.
  
• System architecture, integration, interfaces, and dependency management.
  
• Verification, validation, test planning, and acceptance criteria.
  
• Network, compute, storage, virtualization, cloud, identity, cybersecurity, application, and data fundamentals.
  
• Reliability, availability, maintainability, scalability, resilience, and continuity of operations.
  
• Configuration management, change control, technical baselines, and decision analysis.
  
• Automation, scripting, configuration management, and infrastructure-as-code concepts.
  
• Structured troubleshooting, root-cause analysis, technical documentation, and stakeholder communication.
  

Current Top Secret clearance with SCI-eligibility and SAP-eligibility are required for this position. Only applicants with a current security clearance will be considered. Applicants selected will be subject to a government security investigation and must meet eligibility requirements for access to classified information.

Special Access Program (SAP) Eligibility: Candidates must successfully complete security screening related to foreign contacts, foreign interests, foreign travel, personal conduct, and financial responsibility as part of the SAP access determination process.

BGLANDOVERY

We offer a comprehensive benefits package for Full-time Employees to include the following:

• Generous paid vacation and holiday leave.
  
• Flexible Spending Account (medical and dependent).
  
• 401(k) with employer match.
  
• Life insurance.
  
• Short-term and long-term disability.
  
• Tuition assistance and professional development opportunities.
  

GTSC Bowen Group is proud to be an equal opportunity employer, committed to recruiting, hiring, and promoting qualified people of all backgrounds, regardless of sex; race; color; creed; national origin; religion; age; marital status; pregnancy; physical, mental or sensory disability; sexual orientation; gender identity or any other basis protected by federal, state or local law.

GTSC-Talent Solutions is an Equal Opportunity Employer and does not discriminate on the basis of race or ethnicity, religion, sex, national origin, age, veteran disability or genetic information or any other reason prohibited by law in employment.