Sr. Information Systems Security Officer (ISSO)-Onsite in Littleton,CO

Job ID: 692973BR Date posted: May. 06, 2025
Description:Lockheed Martin is a pioneer, partner, innovator and builder. Our amazing men and women are on a mission to make a difference in the world and every single day we use our unique skills and experiences to create, design and build solutions to some of the worlds’ hardest engineering problems.
Do you want to be part of a culture that inspires employees to think big, perform with excellence and build incredible products? We provide the resources, inspiration and focus - if you have the passion and courage to dream big, then we want to build a better tomorrow with you.
As a Senior Classified Cybersecurity team member you will partner with cyber and industrial security teams and Government customers to perform as an Information Systems Security Officer (ISSO) for the collateral classified DarkStar Enterprise Wide Area Network (eWAN).

In this role, you will need technical and management skills to:
- Assist the Information System Security Manager (ISSM) and alternate (A-ISSM) in overseeing day-to-day information system security operations for the DarkStar Enterprise Wide Area Network as detailed below:
- Conduct weekly security audits and continuous monitoring (ConMon) activities for the collateral classified DarkStar eWAN.
- Processing of hardware and software evaluations and user access requests.
- Conducting system reediness reviews and user briefings.
- Creation and maintenance of eMASS RMF package, change request and plan submissions (SSP, Mobility, ConOps, Disestablishment, Decommission etc.) and related artifacts, policies and procedures (AI SOP, Baselines document, diagrams etc.)
- Serve as a technical POC to help support enterprise architecture and complex classified IT environments.
- Perform duties related to data transfer to/from the DarkStar Enterprise Wide Area Network (DTA/MC).
- Support enterprise efforts using project management skills to track schedules, identify critical chains, impact to schedules, and resources needs.
- Take initiative to identify and execute opportunities for the growth of the organization.
- Ensure compliance with contract security specifications, customer governing requirements, Lockheed Martin and business area security policies.
- Test state-of-the-art operating systems / networks, perform system / program auditing to validate configuration and processes are in accordance with the Assessment and Authorization (A&A) documentation, and assist in periodic regulatory risk assessments.
Other responsibilities include ensuring consistent implementation of compliant and cost- effective security solutions, evaluating and articulating recommendations to management, and interfacing with program management on Cybersecurity initiatives and activities. You will also be responsible for methods and processes to ensure compliance with contract security specifications and customer requirements, establish and maintain effective internal/external partnerships and apply business-minded and risk-managed solutions to dynamic security environments.
A Final Secret clearance required to start.
To promote the sharing of ideas, we at Lockheed Martin champion an inclusive work environment that supports differences and big-picture thinking.
You have opportunities to play an active role in strengthening the quality of life where we live and work by volunteering more than 850,000 hours annually. Here are some of the benefits you can enjoy:
- Medical
- Dental
- 401k
- Paid time off
- Flexible work schedule
- Work/life balance
- Career development
- Mentorship opportunities
We are an equal opportunity employer and value diversity at Lockheed Martin. We do not discriminate on the basis of race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status.
Basic Qualifications:
• Final Top Secret Clearance
• Risk Management Framework (RMF) processes and requirements
• Knowledgeable of operating system and application security requirements
• Background in Security and/or IT
• Have and maintain a DoD 8570 IAT Level II or IAM Level I or higher certification
Desired Skills:
• Risk Management Framework (RMF) processes and requirements
• Knowledgeable of operating system and application security requirements
• Background in Security and/or IT
• Have and maintain a DoD 8570 IAT Level II or IAM Level I or higher certification
Desired Skills:
• Final Top-Secret clearance
• Experience with large geographically dispersed networks
• Experience with modern solutions and large complex networks
• Demonstrated technical experience for Windows, Linux, Networking, and UNIX-based operating systems
• In-depth experience in system hardening, analysis, and vulnerability management
• Experience with the Defense Counterintelligence & Security Agency (DCSA) and their implementation of the Risk Management Framework (RMF)
• Experience with industry standard Information Assurance tools such as the STIGs/SRGs, STIG Viewer, ACAS, SCC Tool, Vulnerator, Tenable Nessus and/or Security Center etc., and SIEM tools such as Splunk Enterprise, ManageEngine ELA, LogRhythm, QRadar, Trellix/McAfee Security Manager, Logpoint, Elastic (ELK) Stack, etc.
• Bachelor Degree in Information Systems Security, Management Information Systems, Information Technology, or other relevant discipline and 9 years of relevant work experience or a Masters Degree and 5 years of experience.
Security Clearance Statement: This position requires a government security clearance, you must be a US Citizen for consideration.
Clearance Level: Top Secret with Investigation or CV date within 5 years
Other Important Information You Should Know
Expression of Interest: By applying to this job, you are expressing interest in this position and could be considered for other career opportunities where similar skills and requirements have been identified as a match. Should this match be identified you may be contacted for this and future openings.
Ability to Work Remotely: Onsite Full-time: The work associated with this position will be performed onsite at a designated Lockheed Martin facility.
Work Schedules: Lockheed Martin supports a variety of alternate work schedules that provide additional flexibility to our employees. Schedules range from standard 40 hours over a five day work week while others may be condensed. These condensed schedules provide employees with additional time away from the office and are in addition to our Paid Time off benefits.
Schedule for this Position: 9x80 every other Friday off
Pay Rate: The annual base salary range for this position in California and New York (excluding most major metropolitan areas), Colorado, Hawaii, Illinois, Maryland, Minnesota, Washington or Washington DC is $89,300 - $157,550. For states not referenced above, the salary range for this position will reflect the candidate’s final work location. Please note that the salary information is a general guideline only. Lockheed Martin considers factors such as (but not limited to) scope and responsibilities of the position, candidate's work experience, education/ training, key skills as well as market and business considerations when extending an offer.
Benefits offered: Medical, Dental, Vision, Life Insurance, Short-Term Disability, Long-Term Disability, 401(k) match, Flexible Spending Accounts, EAP, Education Assistance, Parental Leave, Paid time off, and Holidays.
(Washington state applicants only) Non-represented full-time employees: accrue at least 10 hours per month of Paid Time Off (PTO) to be used for incidental absences and other reasons; receive at least 90 hours for holidays. Represented full time employees accrue 6.67 hours of Vacation per month; accrue up to 52 hours of sick leave annually; receive at least 96 hours for holidays. PTO, Vacation, sick leave, and holiday hours are prorated based on start date during the calendar year.
This position is incentive plan eligible.
Lockheed Martin is an equal opportunity employer. Qualified candidates will be considered without regard to legally protected characteristics.
The application window will close in 90 days; applicants are encouraged to apply within 5 - 30 days of the requisition posting date in order to receive optimal consideration.
At Lockheed Martin, we use our passion for purposeful innovation to help keep people safe and solve the world's most complex challenges. Our people are some of the greatest minds in the industry and truly make Lockheed Martin a great place to work.

With our employees as our priority, we provide diverse career opportunities designed to propel, develop, and boost agility. Our flexible schedules, competitive pay, and comprehensive benefits enable our employees to live a healthy, fulfilling life at and outside of work. We place an emphasis on empowering our employees by fostering an inclusive environment built upon integrity and corporate responsibility.

If this sounds like a culture you connect with, you’re invited to apply for this role. Or, if you are unsure whether your experience aligns with the requirements of this position, we encourage you to search on Lockheed Martin Jobs, and apply for roles that align with your qualifications.
Experience Level: Experienced Professional
Business Unit: CORPORATE HEADQUARTERS
Relocation Available: No
Career Area: Cyber Security
Type: Full-Time
Shift: First