Senior Cyber Security Engineer / ISSO
We harness the power of innovation so that you can change the world and help our customers solve their most complex challenges

At Parsons, you can imagine a career where you thrive, work with exceptional people, and be yourself. Guided by our leadership vision of valuing people, embracing agility, and fostering growth, we cultivate an innovative culture that empowers you to achieve your full potential. Unleash your talent and redefine what’s possible.
Job Description:
Parsons is looking for an amazingly talented, motivated, and customer-oriented Senior Cyber Security Engineer / Information Systems Security Officer (ISSO) to join our team!
In this role you will be part of Parsons’ Federal Solutions team providing Systems Engineering Technical Assistance to the Ground-based Midcourse Dense (GMD) Product Office under the Teams-Next Missile Defense Systems Engineering (TN-MDSE) contract managed by the Missile Defense Agency.
What You'll Be Doing:
- Serve as a member of the cybersecurity team, developing system Security Plans (SSPs), Interim Authority to Test (IATT), Authority to Connect (ATC) and, Authority to Operate (ATO) packages.
- Perform analysis to validate established security requirements and recommends additional security requirements and safeguards where required.
- Periodically conduct reviews of each system’s audits and monitors corrective actions until all actions are closed.
- Ensure that system security artifacts are developed, reviewed, and updated as needed.
- Confirm that all RMF requirements are properly addressed and required artifacts are loaded and managed within Enterprise Mission Assurance Support Service (eMASS).
- Interface with other cyber teams to review RMF Contract Data Requirements Lists (CDRLs) and ensure timely delivery of CDRL artifacts, while providing feedback to ensure the sufficiency and quality of cyber artifacts.
- Perform vulnerability/risk analyses of systems using expertise in relevant information systems security.
- Track and monitor Plan of Action and Milestones (POA&Ms).
- Conduct reviews of cybersecurity artifacts and technical briefings and work with customer to resolve any findings.
- Ensure that identified security controls are implemented and operating as intended through all phases of the lifecycle.
- Track deliverables (i.e., artifacts, schedules, and metrics).
- Contribute to and may lead the planning and implementation of large programs in the function and regularly interfaces with senior management and executive leadership.
- Lead, mentor, and provide guidance and instructional aide to Associate and Junior ISSOs.
- Assist in overall functional strategic planning.
What Required Skills You'll Bring:
- Active Secret clearance
- Master's Degree in STEM and 12+ years working on missile defense-related or other complex, large DoD program / project.
- Demonstrated abilities to analyze complex problems, identify root causes, and develop actionable recommendations with effective solutions.
- Knowledge to perform technical work utilizing the Risk Management Framework (RMF) process including analyzing and solving Information Assurance (IA)-related technical problems.
- Ability to establish strict program control processes to ensure mitigation of risks and supports for obtaining certification and accreditation of systems. This includes process support, analysis support, coordination support, security certification test support, security documentation support, investigations, software research, hardware introduction and release, emerging technology research inspections, and periodic audits.
What Desired Skills You'll Bring:
- MDA experience and knowledge of MDA processes
Security Clearance Requirement:
An active Secret security clearance is required for this position.This position is part of our Federal Solutions team.The Federal Solutions segment delivers resources to our US government customers that ensure the success of missions around the globe. Our intelligent employees drive the state of the art as they provide services and solutions in the areas of defense, security, intelligence, infrastructure, and environmental. We promote a culture of excellence and close-knit teams that take pride in delivering, protecting, and sustaining our nation's most critical assets, from Earth to cyberspace. Throughout the company, our people are anticipating what’s next to deliver the solutions our customers need now.Salary Range: $134,100.00 - $241,400.00We value our employees and want our employees to take care of their overall wellbeing, which is why we offer best-in-class benefits such as medical, dental, vision, paid time off, Employee Stock Ownership Plan (ESOP), 401(k), life insurance, flexible work schedules, and holidays to fit your busy lifestyle!Parsons is an equal opportunity employer, and all qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, disability, veteran status or any other protected status.We truly invest and care about our employee’s wellbeing and provide endless growth opportunities as the sky is the limit, so aim for the stars! Imagine next and join the Parsons quest—APPLY TODAY!Parsons is aware of fraudulent recruitment practices. To learn more about recruitment fraud and how to report it, please refer to https://www.parsons.com/fraudulent-recruitment/.
COMPETITIVE BENEFIT OFFERINGS
Financial Wellness
We care about your financial wellbeing. Parsons offers competitive pay and retirement plans to help you build wealth for the future while giving you the flexibility to diversify your investments.
Work Life Harmony
Balance in life is important and time away from the office is imperative to allow you to refresh and focus your attention on the things that matter to you. Parsons supports your time away by providing paid time off and paid flexible holidays.
Career Development
We are committed to fostering the personal and professional growth of our employees. Develop and advance yourself though our comprehensive training, educational and mentorship programs.
Veteran Support
We provide Industry leading benefits to support veterans and active-duty members to provide security for you and your family by offering robust leave and benefits; including paid active-duty military leave and paid time off when transitioning back to civilian life.
Mind & Body
At Parsons we inspire healthier habits, heathier minds, and a healthier you through our wellness program. Participate in our weekly Meditation Mondays and Wellness Wednesdays. Wellness, at Parsons, is more than just your annual checkup.
Health
Health is not a one size fits all. At Parsons, we offer a robust Employee Assistance Program as well as comprehensive medical, dental and vision plans through large, national carriers with the choice of regional PPO, HDHP, or HMO networks.

Join Our Talent Community
Join our Talent Community and imagine next with us!


