Senior Systems Engineer – TS/SCI | INCOSE Expert

Markon; Chantilly (VA); On-site; USD 155,000 - 185,000; Full time

Job summary

Markon is seeking an experienced Systems Engineer to support an Intelligence Community client in Chantilly, Virginia. You will apply INCOSE principles to requirements development, system architecture, integration, verification, validation, and program execution across the full lifecycle.

The role demands active TS/SCI clearance with Full Scope Polygraph and 5+ years of senior-level experience. You will collaborate with sponsors, engineers, and mission personnel to deliver mission-critical

Qualifications

• Active TS/SCI with Full Scope Polygraph required.
• Bachelor's degree in a technical discipline.
• 5+ years of senior-level INCOSE lifecycle experience.
• Experience providing programmatic support in Sponsor environment.
• Knowledge of systems engineering principles: requirements, architecture, integration, verification, validation.
• Experience maintaining systems engineering documentation and lifecycle artifacts.
• Understanding of technical program management: planning, risk, milestones.
• Ability to translate operational needs into technical requirements.
• Experience collaborating with multidisciplinary teams.
• Strong written and verbal communication skills.

Responsibilities

• Support systems engineering activities across the full INCOSE lifecycle.
• Apply methodologies to develop and implement mission-critical capabilities.
• Develop and manage system requirements aligned with sponsor objectives.
• Support architecture development, assessments, and trade studies.
• Provide programmatic and technical support to high-visibility sponsor programs.
• Develop and maintain systems engineering documentation and baselines.
• Coordinate integration, verification, and validation activities.
• Conduct risk assessments, gap analyses, and mitigation planning.
• Collaborate with sponsor stakeholders to translate needs into requirements.
• Support technical reviews, milestones, and design reviews.
• Monitor progress and engineering deliverables across lifecycle.
• Apply configuration management and requirements traceability.
• Evaluate new technologies to improve performance and interoperability.
• Communicate complex concepts to technical and nontechnical audiences.
• Support continuous improvement of processes within sponsor environment.

Skills

INCOSE principles

Requirements analysis

System architecture

Verification & validation

Technical communication

Program management

Risk assessment

Cross‑functional collaboration

translating operational needs

Education

Bachelor's degree in a technical field

Tools

MBSE

Cameo

MagicDraw

Rhapsody

IBM DOORS

Jama Connect

Job description

Markon is seeking an experienced Systems Engineer to support an Intelligence Community client in Chantilly, Virginia. You will apply INCOSE principles to requirements development, system architecture, integration, verification, validation, and program execution across the full lifecycle.

The role demands active TS/SCI clearance with Full Scope Polygraph and 5+ years of senior-level experience. You will collaborate with sponsors, engineers, and mission personnel to deliver mission-critical