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in Lexington Park, MD

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Verified Pay $95,000 - $140,000 per year
Hours Full-time, Part-time
Location Lexington Park, Maryland

About this job

Clearance Required:
Education Required:
BA/BS or HS/GED and Equivalent Work Experience
US Citizenship:


The MIL Corporation seeks a highly skilled and motivated Senior Information Systems Security Officer (ISSO) (Info. Systems & Cyber Security, Associate) to join our cybersecurity team. The Sr. ISSO will apply systems RMF principles and knowledge of Information Technology (IT) systems to investigate, analyze, plan, implement, assess, and validate Cybersecurity of and acquisition for Information Technology (IT) systems, Cross Domain Solutions (CDS), and Multi-Level Security (MLS) systems. The ideal candidate will have experience with DoD/US Navy RMF methodologies, cybersecurity supply-chain risk management and industry standard cybersecurity practices and principles and experience in CDS and MLS solutions. This position may be eligible for some remote work depending on contract/client and hiring manager approval.


  • Support DoD IT Systems cybersecurity compliance and validation within the NIST Risk Management Framework (RMF)
  • Oversight of System Policy:
    • Ensures documents are accurate and applicable.
    • Collaborates with ISSM and RMF Package stakeholders to obtain signatures/approvals.
    • Maintains and updates system policy document in compliance with NIST/DoD/Agency standards.
    • Works with technical writers/stakeholders to complete and update policy.
  • Cybersecurity Supply Chain Risk Management:
    • Collaborate with ISSE, Systems Engineers, and ISSM on product/vendor selection process.
    • Perform Evaluation and Risk management activities on selected technologies/solutions.
    • Develop and produce cybersecurity artifacts for procurement approval activities.
  • Work with Government ISSE to:
    • Develop technical solutions for upgrades of system architectures
    • Competently review ISSE created package POAMs for completeness
    • Ensure Plan of Action & Milestone (POA&M) reports are maintained and that security vulnerabilities are tracked and remediated
    • Maintain communication and comprehension of work prioritization
  • Communicate with ISO office on behalf of the program and its subsystems
  • Meet with project stakeholders to clearly communicate task and ATO need dates
  • Read and adhere to tasks assigned by respective Cybersecurity/Program leads
  • Inform ISSM about ongoing viability of estimated dates of package completion.
  • Support CDS/MLS-specific tasks such as interfacing with Cross Domain Support Element (CDSE) personnel and supporting Site Based Security Assessment (SBSA) activities.


Total travel is expected to be at least 25 - 50% to CONUS sites.

Required Qualifications

  • DoD 8570.01 Level 2 Certification (e.g., Security+), or higher.
  • Seven (7) or more years of experience in related IT and cybersecurity areas.
  • Minimum of (3) years of direct experience with RMF package support.
  • Knowledge of system engineering and system architecture principles
  • Experience with DOD principles rules and processes of the RMF process.
  • Ability to work independently as well as part of a team.
  • Strong attention to detail and ability to manage multiple tasks simultaneously.
  • Effective communication and interpersonal skills to collaborate with team members and provide all manner of cybersecurity support to end-users.
  • Experience with Microsoft Office apps (i.e., Word, Excel, PowerPoint, and Outlook)
  • Ability to adapt to evolving technologies and work in a fast-paced environment.

Desired Qualifications

  • Experience with Navy RMF Accreditation processes.
  • Experience with National Security Agency (NSA) Raise The Bar (RTB) policies, procedures, and processes.
  • Experience in cyber supply chain-risk management processes.


Bachelor's Degree in a related technical discipline from an accredited college. Associate's Degree in a related technical discipline from an accredited college plus four (4) years of additional work experience related to the position may be substituted for a Bachelor's Degree.


All applicants for this position must possess a current Secret clearance; please note that the clearance process takes into account financial background aspects.


The MIL Corporation values your contributions and offers a range of benefits to support your overall well-being. We are pleased to offer a comprehensive range of benefits to our full-time employees which includes health, life, disability, and retirement plans, as well as paid time off, opportunities for professional growth and tuition assistance. Additional benefits and incentives may also apply, which will be communicated during the hiring process.

Salary at MIL is determined based on factors such as qualifications, experience, and contractual limitations. For this position, the projected compensation range is $95,000 - $140,000 per year. This estimate represents the typical salary range and is just one part of MIL's complete compensation package.

Why MIL?

The MIL Corporation (MIL) is a dynamic workforce of industry professionals who deliver world-class solutions in cyber, engineering, financial management, and information technology - and we are looking for candidates like you!Whether you're fresh out of college, the military, or well into your professional services career, MIL has great job opportunities that might be a great fit.

Here at MIL, we pride ourselves on the family-like environment instilled amongst our team. Our employees love working here and it truly shows through our various recognitions & awards. Some of our most recent awards include:

  • 2021-2022, Top Workplaces USA award (Energage)
  • 2017-2022 Top Workplaces Award, Greater Washington Area (The Washington Post)
  • 2018-2022 Certified Great Workplace, Great Place to Work
      • 2021 & 2022, Best Workplaces in Consulting & Professional Services
      • 2021 Fortune Best Workplaces for Millennials
      • 2018 Fortune, Great Place to Work: Best Place to Work for Diversity
  • 2020- 2022, 2017, Top Workplace Award, South Carolina (Greenville Business Magazine, Columbia Business Monthly, and Charleston Business Magazine)
  • 2022 Freedom Award, Employer Support of the Guard and Reserve (ESGR), Department of Defense
  • 2018, Above & Beyond Award, Employer Support of the Guard and Reserve (ESGR), Department of Defense

If your goal is to help the federal government deploy leading technologies, improve financial management, or defend the nation in cyberspace, MIL welcomes you. Become a part of something greater, where you, the people, make the difference.

The MIL Corporation is an equal opportunity employer, and all qualified applicants will receive consideration for employment without regard to race, color, religion, gender, gender identity and sexual orientation, national origin, disability status, protected veteran status, or any other characteristic protected by law.