Senior Systems Engineer — Linux, Jira & Integration Lead

Reflexive Concepts; Maryland; On-site; USD 150,000 - 190,000; Full time

Job summary

Reflexive Concepts seeks a Systems Engineer III to join our team in Maryland, blending Linux CLI expertise with Jira Service Desk administration to support requirements engineering, integration planning, and lifecycle management on complex, mission-focused systems. Active TS/SCI + FS Polygraph is required and experience with compliance needs is essential.

The role emphasizes cross-stakeholder alignment, disciplined configuration and change control, and the creation of clear, comprehensive

Qualifications

• Active TS/SCI + FS Polygraph is required.
• 10+ year systems engineering experience preferred; 20 years stated.
• Clear documentation and governance experience across complex programs.
• Experience with Linux CLI and Jira Service Desk administration.
• Industry-standard security and compliance knowledge.

Responsibilities

• Lead requirements engineering for mission-focused systems.
• Develop integration strategies and coordinate cross-team dependencies.
• Oversee lifecycle management, risk identification, and mitigation.
• Maintain configuration baselines and enforce change control.
• Produce diagrams, procedures, and reports for engineering and operations.

Skills

Linux CLI

Requirements elicitation

System integration planning

Risk mitigation

Configuration management

Stakeholder communication

System lifecycle strategies

Technical documentation

Jira Service Desk administration

Git

Education

Bachelor's degree in Systems Engineering or related field

Five years of substitution for a bachelor's degree

Active TS/SCI + FS Polygraph

Security+ certification preferred

Tools

Jira Service Desk

Git

Job description

Reflexive Concepts seeks a Systems Engineer III to join our team in Maryland, blending Linux CLI expertise with Jira Service Desk administration to support requirements engineering, integration planning, and lifecycle management on complex, mission-focused systems. Active TS/SCI + FS Polygraph is required and experience with compliance needs is essential.

The role emphasizes cross-stakeholder alignment, disciplined configuration and change control, and the creation of clear, comprehensive