Cyber Security Engineer - SME

Cyber Security Engineer - SME Modern Technology Solutions, Inc. 401(k) United States, California, El Segundo May 29, 2026 Modern Technology Solutions Inc. (MTSI) is seeking a Cyber Security Engineer Subject Matter Expert (SME) to join our team in the Colorado Springs area in support of Department of the Air Force (DAF) and U.S. Space Force (USSF) programs. The candidate will be responsible for mentoring, overseeing, assessing, and maintaining program compliance with applicable security regulations and leading the Information Assurance program for various classified Information Systems (IS)s. This position requires an active Top Secret clearance with SCI eligibility . A successful candidate must be a self-starter who possesses initiative, excellent communication skills, the ability to lead diverse teams, to collaborate effectively with cross-functional teams and a proven problem solver. Your essential job functions will include but may not be limited to: Working knowledge of all Risk Management Framework (RMF), doctrine to include all guides, directives, manuals within the DoD, especially DoD Instructions 8500.01 and 8510.01 and all the supporting doctrine (e.g. NIST Special Publications 800-18, 800-30, 800-37, 800-47, 800-53, 800-53A, 800-60, 800-115, 800-128, 800-137, 800-160, and 800-161. In addition, issuances from the Committee of national Security Systems like CNSSP-11, CNSSI-4009, and

CNSSI-1253.

) Mastery knowledge of the Joint Special Access Program (SAP) Implementation Guide (JSIG) and how it is applied within the SAP community Providing expert support, research and analysis of exceptionally complex problems, and processes relating to them Serving as technical expert to the Cybersecurity Assessment Program providing technical direction, interpretation, and alternatives to complex problems Thinking independently and demonstrating exceptional written and oral communications skills Application of advanced technical principles, theories, and concepts Contributing to development of new principles, concepts, and methodologies Work on unusually complex technical problems and providing highly innovative and ingenious solutions Assists in the development of software tool requirements and selection criteria to include development of product specific STIGs from applicable DISA SRGs Leading teams of technical and project managers in implementation of predetermined long-range goals and objectives Supporting customer and SAP community IA working groups, participate in SSE IPT reviews Advising the Information System Owner (ISO), Information Data Owner (IDO), Program Security Officer (PSO), and the Delegated and/or Authorizing Official (DAO/AO) on how to implement effective cyber security posture within their respective programs, organization, and/or agencies Evaluating IS threats and vulnerabilities to determine whether additional safeguards are required Advising the Government concerning impact levels for Confidentiality, Integrity, and Availability for the information on a system Evaluating security assessment documentation and providing written recommendations for Information System Owner (ISO), Information Data Owner (IDO), Program Security Officer (PSO), and the Delegated and/or Authorizing Official (DAO/AO) Evaluating and assessing authorization boundaries and proposed any changes that could enhance the security posture of the Authorization boundaries Mastery knowledge of the various types of protection level implementations and provide guidance on how to achieve that protection level authorization Ensuring organizations are addressing and conducting all phases of the system development life cycle (SDLC) Ensuring government organizations are implementing and executing cyber security in accordance with the DoD Acquisition strategy Evaluating the effectiveness and implementation of Continuous Monitoring Plans Assisting with development and maintenance of the Program Protection Plan Representing customers in various ISSE related working groups, advisory groups, and advisory council meetings Qualifications

Required Experience:

14+ years of Cyber Security Engineer or related experience 10+ years experience in the role or combination of the roles of Information Systems Security Manager (ISSM), Information Systems Security Officer (ISSO), or Information Systems Security Engineer (ISSE) or similar positions Experience assessing SAP and SCI information systems (desired) Experience with authoring and briefing A&A documentation and artifacts for SAP and SCI systems Knowledge of federal security requirements and mandates (e.g., RMF, Federal Information Processing Standards (FIPS), NIST, and JSIG) Excellent oral and written communication skills Ability to work well independently or as a team member 5 years of more of experience as a Security Control Assessor Representative (SCAR) or Security Control Assessor (SCA) (desired) Education /

Certification Requirements:

Bachelor of Science degree in computer science, cybersecurity, software engineering, data science, software development or STEM related specialty Master of Science Degree in a related cybersecurity field (highly desired) DoD 8140.3 Advanced Certified

Security Clearance Level Required:

Top Secret, SCI eligible (Must be a U.S. Citizen) SAP eligibility (Counterintelligence Polygraph may be required)

Location/Travel Requirements:

•Place of work is in Colorado Springs area, requires onsite at company and customer facilities •May require travel up to 40% of time within the continental United States and may involve overseas travel The pay range for this position is $175,000/year to $215,000/year; however, base pay offered may vary depending on established government contract ranges, 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. Applications will be accepted on an ongoing basis. This posting will be renewed periodically until the position is filled. #LI-MW2 #MTSI #

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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.