Demo

Cyber Security Engineer - Senior

Modern Technology Solutions, Inc. (MTSI)
El Segundo, CA Full Time
POSTED ON 5/30/2026
AVAILABLE BEFORE 6/28/2026
Modern Technology Solutions Inc. (MTSI) is seeking a Senior Cyber Security Engineer 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, assisting, assessing, and ensuring program compliance with applicable security regulations 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:

  • 8 years or more of Cyber Security Engineer or related experience
  • 5 years or more of experience in the role 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 ISs (desired)
  • Experience with authoring A&A documentation and system authorization artifacts for SAP and SCI systems
  • Knowledge of federal security requirements and mandates (e.g., RMF, Federal Information Processing Standards (FIPS), National Standards of Information Technology (NIST) and JSIG)
  • Excellent oral and written communication skills
  • Ability to work well independently or as a team member
  • 5 years or more 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
  • 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, CO 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 $160,000/year to $180,000/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.

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Salary : $160,000 - $180,000

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