Senior Systems Engineer (Full Scope Polygraph)

Modern Technology Solutions, Inc.
401(k)
United States, Maryland, Fort Meade
Feb 09, 2026
Modern Technology Solutions, Inc. (MTSI) is seeking a Senior Systems Engineer to join our team in Annapolis Junction, Maryland. Qualified candidates must be U.S. citizens with a TS/SCI clearance and Full Scope Polygraph. Responsibilities: Analyze user's requirements, concept of operations documents, and high-level system architectures to develop system requirements specifications. Analyze system requirements and leads design and development activities. Guides users in formulating requirements, advises alternative approaches, and conducts feasibility studies. Provide technical leadership for the integration of requirements, design, and technology. Incorporate new plans, designs and systems into ongoing operations. Develop system Architecture and system design documentation. Interacts with the Government regarding Systems Engineering technical considerations and for associated problems, issues or conflicts. Communicate with other program personnel, government overseers, and senior executives. Manage system requirements and derived requirements to ensure the delivery of production systems that are compatible with the defined system architecture(s) - Department of Defense Architecture Framework (DoDAF), Service-oriented Architecture (SOA), etc. Contribute to the development of sections of systems engineering documentation such as System Engineering Plans, Initial Capabilities Documents, Requirements specifications, and Interface Control Documents. Assist with the development of system requirements, functional requirements, and allocation of the same to individual hardware, software, facility, and personnel components. Coordinate the resolution of action items from Configuration Control Board (CCB) meetings, design reviews, program reviews, and test reviews that require cross-discipline coordination. Participate in an Integrated Product Team to design new capabilities based upon evaluation of all necessary development and operational considerations. Participate in establishing and gaining approval of the definition of a system or component under development (requirements, designs, interfaces, test procedures, etc.) that provides a common reference point for hardware and software developers. Develop derived requirements for Information Assurance Services (Confidentiality, Integrity, Nonrepudiation, and Availability); Basic Information Assurance Mechanisms (e.g., Identification, Authentication, Access Control, Accountability); and Security Mechanism Technology (Passwords, cryptography, discretionary access control, mandatory access control, hashing, key management, etc.). Implement operational view, technical standards view, and system and services view for architecture using applicable DoDAF standards. Review and/or approve system engineering documentation to ensure that processes and specifications meet system needs and are accurate, comprehensive, and complete. Capture all interface designs in a common interface control format and store interface data in a commonly accessible repository. Establish a process to formally and proactively control and manage changes to requirements, consider impacts prior to commitment to change, gain stakeholder buy-in, eliminate ambiguity, ensure traceability to source requirements, and track and settle open actions. Conduct quantitative analysis in non-functional system performance areas like Reliability, Maintainability, Vulnerability, Survivability, Producibility, etc.). Establish and follow a formal procedure for coordinating system integration activities among multiple teams, ensuring complete coverage of all interfaces. Required Qualifications:* 14+ years of experience as a Systems Engineer in programs and contracts of similar scope, type and complexity. Excellent oral and written communication skills. Strong customer service skills; being able to work with personnel across multiple disciplines of the organization. Strong organizational skills and ability to manage multiple tasks concurrently. Ability to work well independently or within a team. Qualifications Desired:* Exceptional integrity, professionalism, and commitment to MTSI's core values. Experience using tools like Python and SQL. Experience with cloud computing platforms like; Amazon Web Services (AWS), Microsoft Azure, Google Cloud Platform (GCP) or AWS GovCloud. Experience with ETL frameworks. Education Requirements: Bachelor's degree in System Engineering, Computer Science, Information Systems, or related discipline from an accredited college or university. 5+ years of additional Systems Engineering experience may be substituted for a bachelor's degree. Certifications Requirements: Any Data Engineer certification (desired). Clearance Requirements:* TS/SCI clearance with Full Scope Polygraph. #LI-RC2 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. For more information about MTSI, please visit www.mtsi-va.com MTSI embraces nine core values including our first core value of Employees come first. Consistent with our Core Values, we are committed to Equal Opportunity, making decisions without regard to race, color, religion, sex, national origin, age, military/veteran status, disability, or any other characteristics protected by applicable law. MTSI is committed to Equal Employment Opportunity and providing reasonable accommodations to applicants and employees with physical and/or mental disabilities.