Requirements Systems Engineer

Modern Technology Solutions, Inc. (MTSI) is seeking a highly qualified Requirements Systems Engineer to support nextgeneration programs for the U.S. Space Force (USSF). In this role, you will contribute to Systems Engineering & Integration (SE&I) activities, ModelBased Systems Engineering (MBSE) development, technical baseline integrity, and requirements analysis. Responsibilities:

• Support MBSE activities to develop, refine, and maintain system and subsystem technical baselines.
• Develop, analyze, refine, and manage system and subsystem requirements, ensuring clarity, traceability, and verifiability.
• Participate in requirements verification, including review of Technical Requirements Documents (TRDs), Interface Control Documents (ICDs), and other technical artifacts.
• Work with government and contractor teams to identify and close requirement gaps using tools such as DOORS.
• Lead or support technical working groups, including preparing materials, authoring meeting minutes, tracking action items, and facilitating collaborative problem solving.
• Assess impacts to system technical baselines and identify integration considerations across space, ground, and operational stakeholders.
• Review and capture comments on program documentation and collaborate with contractors on adjudication and technical updates.
• Provide technical inputs and support development of briefings for USSF program leadership.
• Support risk, issue, and dependency management, including identifying disconnects and recommending solutions.

• Bachelor’s degree in engineering, physics, mathematics, computer science, or another STEM field.
• 3-5 years of experience in systems engineering or requirements management.
• Experience with requirements specification, analysis, and verification.
• Familiarity with requirements traceability tools such as DOORS.
• Strong analytical, problemsolving, and organizational skills.
• Excellent communication skills (written and verbal).
• Proficiency with Microsoft Office (Word, Excel, PowerPoint).
• Clearance: Active Top Secret Clearance and ability to acquire SCI / SAP Access, * Master’s degree in engineering, physics, mathematics, or computer science.
• INCOSE ASEP/CSEP/ESEP certification.
• MBSE certification (OCSMP).
• Experience with Agile development tools or methodologies.
• Experience with Jira and Confluence.
• Experience with MILSATCOM systems such as AEHF, EPS, WGS, Tactical SATCOM, or COMSATCOM.
• Background working with DoD or military customers.
• Familiarity with space and ground communication systems, including terminals, satellite payloads, or DoD networks.

The pay range for this position in California is $165,000/year to $205,000/year; however, base pay offered may vary depending on established government contract wages, job-related knowledge, skills, and experience, and other factors. MTSI also offers a full range of medical, financial, and other benefits, dependent on the position offered. Base pay information is based on market location. Applicants should apply via MTSI’s internal or external careers site. #LI-BH1 #mtsi #mtsijobs * Interesting Work: Our co-workers support some of the most important and critical programs to our national defense and security. * Values: Our first core value is that employees come first. We challenge our co-workers to provide the highest level of support and service, and reward them with some of the best benefits in the industry. * 100% Employee Owned: We have a stake in each other’s success, and the success of our customers. It’s also nice to know what’s going on across the company; we have company wide town-hall meetings three times a year. * Great Benefits - Most Full-Time Staff Are Eligible for:

* Starting PTO accrual of 20 days PTO/year + 10 holidays/year * Flexible schedules * 6% 401k match with immediate vesting up to $9k annually * Semi-annual bonus eligibility (July and December) * Company funded Employee Stock Ownership Plan (ESOP) - a separate qualified retirement account * Up to $10,000 in annual educational reimbursement * Other company funded benefits, like life and disability insurance * Optional zero deductible Blue Cross/Blue Shield health insurance plan

Track Record of Success: We have grown every year since our founding in 1993.

Modern Technology Solutions, Inc. (MTSI) is a 100% employee-owned engineering services and solutions company that provides high-demand technical expertise in Digital Transformation, Modeling and Simulation, Rapid Capability Development, Test and Evaluation, Artificial Intelligence, Autonomy, Cybersecurity and Mission Assurance

MTSI delivers capabilities to solve problems of global importance. Founded in 1993, MTSI today has employees at over 20 offices and field sites worldwide.