Onsite Systems Engineer | TS/SCI with Poly

xmstart, inc; Chantilly (VA); On-site; USD 90,000 - 130,000; Full time

Job summary

XMSTART is seeking experienced Systems Engineers for full-time, onsite roles in Chantilly, VA and Aurora, CO. Responsibilities span requirements, architecture, integration, testing, and documentation while coordinating with government and cross-functional teams.

The ideal candidate will have an active TS/SCI clearance with Poly, 0–5 years for junior, up to 10+ for senior, and strong communication, documentation, and configuration management skills.

Qualifications

• Active TS/SCI clearance with polygraph.
• Junior to Senior experience ranges: 0–5 years, 5–10 years, 10+ years.
• Experience in systems engineering, systems integration, or related technical disciplines.
• Ability to clearly communicate technical information in writing and speaking.
• Familiarity with engineering documentation, testing, and configuration management practices.

Responsibilities

• Support requirements development, traceability, and change management.
• Assist with system architecture, interface definition, and design reviews.
• Support integration, verification, validation, and transition activities.
• Maintain technical documentation, baselines, and engineering artifacts.
• Coordinate with government, contractor, and cross-functional teams to resolve issues.
• Gather and analyze metrics to support continuous improvement and end-to-end engineering.

Skills

TS/SCI clearance

Systems engineering

Systems integration

Engineering documentation

Communication skills

Configuration management

Job description

XMSTART is seeking experienced Systems Engineers for full-time, onsite roles in Chantilly, VA and Aurora, CO. Responsibilities span requirements, architecture, integration, testing, and documentation while coordinating with government and cross-functional teams.

The ideal candidate will have an active TS/SCI clearance with Poly, 0–5 years for junior, up to 10+ for senior, and strong communication, documentation, and configuration management skills.