New

Information Systems Security Engineer (ISSE) [Full Scope Polygraph]

Modern Technology Solutions, Inc.
401(k)
United States, Maryland, Annapolis Junction
Feb 04, 2026
Modern Technology Solutions, Inc. (MTSI) is hiring an Information Systems Security Engineer (ISSE) at Annapolis Junction, Maryland.Qualified candidates must have a TS/SCI and Polygraph clearance. Responsibilities: Provide the government customer with expert technical assistance by designing secure networks, performing security assessments of computing environments, evaluating architectures for compliance with Information Assurance (IA) standards, and recommending risk mitigation strategies Lead as a security engineer providing expert assistance with the design, development, implementation and/or integration of secure networks, enclave environments, architectures, systems, and system components. Support Government enforcement of the design and implementation of trusted relationships among external systems and architectures Provide the customer with assistance to ensure that the architecture and design of information systems are functional and secure Advocate and recommend system-level solutions to resolve security requirements Monitor and recommend improvements to IA policy Support security planning, assessment, risk analysis, and risk management Identify security requirements for the proper handling of Government data Interact with Government customers, IT staff, and high-level corporate officers to define and achieve IA objectives. Qualifications Required:* Exceptional integrity, professionalism, and a commitment to abide by MTSI's core values Strong leadership and communication skills Prior experience as an ISSE Education Requirements:* Master's or Bachelor's degree in computer science or a related technical discipline Certification Requirements:* DoDD 8140 compliance with IASAE Level III or Level II Information Systems Security Engineering Professional (ISSEP) Certified Information Systems Security Professional (CISSP) Clearance Requirements:* TS/SCI clearance with Full Scope Polygraph #LI-RC1 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.