Senior Information Systems Security Officer - ISSO
Two Six Technologies
Herndon, VA · $160k–$220k a year · Posted November 2, 2026
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Where Herndon, VA ranks
Where Herndon, VA placed in our monthly rankings, month by month. Each month stays online at its own address.
November 2026
- #2Best cities for pay after cost of living in Virginia$161k · of 15
- #3Best cities for pay after cost of living in the Southeast$161k · of 33
- #3Best all-round cities for AI careers in the Mid-Atlantic86 / 100 · of 37
- #4Best cities for pay after cost of living in the Mid-Atlantic$161k · of 37
- #4Best cities for software and engineering jobs in the Mid-Atlantic441 openings · of 68
- #4Best all-round cities for mid-career professionals in the Mid-Atlantic76 / 100 · of 37
Rankings about security jobs
- Best cities for security jobs #1 San Francisco (316 openings)
- Best cities for security pay after cost of living #1 San Mateo ($241k)
- Most requested AI skills in security jobs #1 AI tools in daily work (10.8%)
- Employers with the most security jobs #1 Amazon (318 roles)
How AI is used in this kind of work
Among information security analysts, AI is already used for a large share of the tasks. Measured exposure for information security analysts: 49% (high).
Share of this job’s tasks that AI is already used for at work, from real usage. It is not a forecast of job loss, and a low number means no use seen yet. Source: Anthropic Economic Index.
Skills this job asks for
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About the job
At Two Six Technologies, we build, deploy, and implement innovative products that solve the world’s most complex challenges today. Through unrivaled collaboration and unwavering trust, we push the boundaries of what’s possible to empower our team and support our customers in building a safer global future.
Two Six Technologies is growing, and we are looking for a full-time Senior Information System Security Officer (ISSO) to support a vital role in our Corporate team. You will be responsible for assisting the Information System Security Manager in ensuring compliance for assigned classified programs. You will need to have experience working within the IC and have worked with Intelligence Community Directive (ICD) 503 requirements and NIST 800-53 controls.
The ideal candidate will need to work well within a team environment but accomplish tasks independently, have solid attention to detail, strong analytical and critical problem-solving abilities, and excellent communication skills.
The environments you will work in include Windows 10/11, Active Directory/Group Policy, Red Hat Enterprise Linux (RHEL), Ubuntu Linux, VMWare vSphere / ESXi, etc.
The position will be based out of our Herndon, VA office with potential local travel to our other sites.
What You Will Do:
Work with the Corporate ISSM and CSO to build, architect and accredit classified information systems.
Responsible for achieving accreditation and maintaining compliance for the Herndon program.
Responsible for being the information security liaison between the program, customer and the security team.
Play a vital role in the RMF process serving as an advisor to the ISSM.
Complete STIG checklists and POA&Ms as required.
Review all data transfers to information systems.
Perform weekly, bi-weekly, and monthly audits for all assigned accredited systems.
Conduct Continuous Monitoring activities as required per customer requirements.
Responsible for creating new and maintaining existing policies.
What You Will Need:
5+ years of experience working within a classified environment as an ISSO
Bachelor’s degree in Cybersecurity, Computer Science, Information Security, or related degrees or advanced professional industry certifications can be substituted
Required to have an 8140 certification such as Security+, GCISP, GSEC, SSCP, CASP+, CISM, CISSP, etc.
Working knowledge of tools such as Splunk, SNOW (ServiceNOW), and Talon
Have working knowledge of government regulations such as the DCSA Assessment and Authorization Process Manual (DAAPM), Joint SAP Implementation Guide (JSIG), NIST SP 800-53, NIST SP 800-171, etc.
Advanced understanding of security compliance matrix
What We Would Like
Operating System certifications such as LPIC, Linux+, RHCSA, Microsoft Administrator certifications, etc.
Working experience in mainly Windows and some experience with Linux environment
Active TS/SCI w/Poly
Security Clearance Required:
Active TS/SCI with eligibility for Poly
Two Six Technologies is committed to providing competitive and comprehensive compensation packages that reflect the value we place on our employees and their contributions. We believe in rewarding skills, experience, and performance. Our offerings include but are not limited to, medical, dental, and vision insurance, life and disability insurance, retirement benefits, paid leave, tuition assistance and professional development.
The projected salary range listed for this position is annualized. This is a general guideline and not a guarantee of salary. Salary is one component of our total compensation package and the specific salary offered is determined by various factors, including, but not limited to education, experience, knowledge, skills, geographic location, as well as contract specific affordability and organizational requirements.
Salary Range $160,000 — $220,000 USD
Looking for other great opportunities? Check out Two Six Technologies Opportunities for all our Company’s current openings!
Ready to make the first move towards growing your career? If so, check out the Two Six Technologies Candidate Journey ! This will give you step-by-step directions on applying, what to expect during the application process, information about our rich benefits and perks along with our most frequently asked questions. If you are undecided and would like to learn more about us and how we are contributing to essential missions, check out our Two Six Technologies News page! We share information about the tech world around us and how we are making an impact! Still have questions, no worries! You can reach us at Contact Two Six Technologies . We are happy to connect and cover the information needed to assist you in reaching your next career milestone.
Two Six Technologies is an Equal Opportunity Employer and does not discriminate in employment opportunities or practices based on race (including traits historically associated with race, such as hair texture, hair type and protective hair styles (e.g., braids, twists, locs and twists)), color, religion, national origin, sex (including pregnancy, childbirth or related medical conditions and lactation), sexual orientation, gender identity or expression, age (40 and over), marital status, disability, genetic information, and protected veteran status or any other characteristic protected by applicable federal, state, or local law. For more information review the Two Six Technologies Equal Employment Opportunity and Affirmative Action Policy and the EEO Poster .
If you are an individual with a disability and would like to request reasonable workplace accommodation for any part of our employment process, please send an email to accommodations@twosixtech.com . Information provided will be kept confidential and used only to the extent required to provide needed reasonable accommodations.
Additionally, please be advised that this business uses E-Verify in its hiring practices.
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