Systems Engineer III

Systems Engineer III

Reflexive Concepts is seeking a skilled Systems Engineer III to join our team! The Systems Engineer supports requirements engineering, integration planning, lifecycle management, and technical risk and issue mitigation across complex, mission-focused systems on the IaaS task. The role pairs strong Linux command-line expertise with deep Jira Service Desk administration, and carries responsibility for driving cross-stakeholder alignment, maintaining disciplined configuration and change control, and producing clear, comprehensive technical documentation that supports engineering, operations, and compliance needs.

Qualifications:

• Active TS/SCI + FS Polygraph
• Twenty (20) years' experience as a Systems Engineer, in programs and contracts of similar scope, type, and complexity
• Demonstrated experience in planning and leading Systems Engineering efforts
• Bachelor's degree in Systems Engineering, Computer Science, Information Systems, Engineering Science, Engineering Management, or a related discipline from an accredited college or university
• Five (5) years of additional Systems Engineering experience may be substituted for a bachelor's degree
• Security+ certification preferred

Required Skills + Experience:

• Demonstrated proficiency navigating Linux systems using the Linux CLI
• Experience eliciting, analyzing, validating, and documenting technical and functional requirements to ensure solutions meet stakeholder needs and align with mission objectives
• Experience developing detailed integration strategies, coordinating cross team dependencies, and overseeing system integration activities to ensure seamless interoperability across components
• Experience at identifying potential risks, evaluating impacts, creating mitigation plans, and tracking issues through resolution to maintain system stability
• Proficient in maintaining disciplined configuration baselines, documenting changes, enforcing version control processes, and ensuring all modifications follow established governance procedures
• Strong ability to collaborate with diverse technical and non-technical stakeholders, facilitating clear communication, alignment, and timely decision-making throughout the project lifecycle
• Experienced in defining system lifecycle strategies, including development, deployment, maintenance, enhancement, and decommissioning phases to support long term program sustainability
• Produces clear, comprehensive, and well-structured technical documentation, including diagrams, procedures, how-to guides, and reports that support engineering, operations, and compliance needs
• Hands-on expertise designing, configuring, and maintaining Jira Service Desk projects, workflows, automation, permissions, and custom fields to optimize service delivery and operational efficiency
• Excellent written and verbal communication skills with strong attention to detail

Desired Skills + Experience:

• Experience with Git Source Control System