SMX is seeking a Cybersecurity SME Senior SIGINT to support GISA at Fort Belvoir, VA. The successful candidate will have experience working as an ISSO on large Department of Defense contracts and leading a team of other cyber security professionals in support of project and client goals and objectives.
This is a full-time onsite position in Ft. Belvoir, VA.
Essential Duties & Responsibilities
- Continuous Monitoring Activities within 120-100 days of ATD:
- Self-Test Security Controls are completed and updated annually.
- Diagrams updated.
- Hardware/Software Lists
- Scans in artifacts or in CyborgBunny system are updated.
- Ensure POA&M Elements for Security Controls in XACTA are updated, completed by ISSO, or closed by DAO.
- RMF documents updated within 12-18 months (Incident Response, Contingency Plan, Configuration Plan, Disaster Recovery Plan, Privileged User Guide, General User Guide)
- Monitor and review Auditing (UAM) activities using SEAR
- Review and approve IAVA POA&Ms (only for SSPs without O-ISSM) through Biscotti
- CONOPS (updated annually).
- Mandatory System Owner training and iAgree form signed (annually) using CUE
- ISSM and ISSO orders in BoE.
- Review Security Relevant Changes are updated.
- System Security Plan (SSP) updated annually and complete.
- Work with ISSO to update any discrepancies and complete Readiness Report in IGGY Then complete ISSM Readiness Report in IGGY system when ready to move forward.
- Send email to System Owner, ISSO and DAO that system is ready to move to DAO for review.
- Review, approve or disapprove IAVA POA&M in Biscotti system for SSPs without O-ISSMs assigned on monthly basis.
- Review, monitor and approve (systems without O-ISSM) CIVET and Staffing Processing Forms (SPF) tickets (these are tickets to be submitted for waivers on compliance for the system) through DOCHound system and reach out to ISSO when CIVET tickets expired, and no response has been made.
- Review alerts in LATTEART system – reach out to ISSOs to clear alerts and ensure system health score is within NSA requirements.
- Review and approve DTA ticket requests through help desk CHD
- Review and approve decommission requests of systems out of XACTA
- Review and update DAO on extension requests for expiring system for DAO decisions.
- Ensure Computer Security Incident Reports (CSIRs) through FREEZFRAME or emails are handled within 3 business days. Follow up on weekly basis and escalate cases without responses after 30 days.
- Work and monitor to ensure System Owners and ISSOs to address and update any expired POA&Ms. POA&M extension requests need DAO approval.
- Attend meetings, complete ad hoc tasks, and answer emails on questions from ISSMs and ISSOs.
- Assist ISSOs with policy and procedures especially with questions on changes.
- Review DARKROAST or ROCBLASTER for any new registered systems (weekly) or I review XACTA messages of new system added to XACTA.
- Review Satellite system for tracking SSPs and what queue is the SSPs are in.
Required Skills, Experience & Education
- PhD in an area of Science, Technology, Engineering or Mathematics with at least 15 years’ experience as a cybersecurity professional OR a Master's degree in an area of Science, Technology, Engineering or Mathematics with at least 18 years’ experience as a cybersecurity professional OR a Bachelor’s degree in an area of Science, Technology, Engineering or Mathematics with at least 20 years’ experience as a cybersecurity professional
- Required Clearance: TS/SCI with CI Poly and NATO read-on prior to starting work
- 5 years of experience performing duties as an ISSM for SIGINT applications and systems.
- Ability to obtain and maintain all required NSA access.
- Meet the DoD requirements for a privileged user on a TS/SCI information system prior to starting work - DoD 8140 / 8570.01-m requirements
- 15 years’ experience with the assessment and accreditation activities of national security systems (NSSs)
- 10 years’ experience validating system security controls
- 10 years’ experience with vulnerability management
- 8 years’ experience with RMF
- 5 years’ experience with POA&M tracking and resolution
Desired Skills, Experience
- 5 years of experience performing RMF functions under the guidance and direction of NSA
- 5 years of ISSM or ISSO experience in Xacta
Application Deadline: September 14, 2026
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The SMX salary determination process takes into account a number of factors, including but not limited to, geographic location, Federal Government contract labor categories, relevant prior work experience, specific skills, education and certifications. At SMX, one of our Core Values is to Invest in Our People so we offer a competitive mix of compensation, learning & development opportunities, and benefits. Some key components of our robust benefits include health insurance, paid leave, and retirement.
At SMX®, we are a team of technical and domain experts dedicated to enabling your mission. From priority national security initiatives for the DoD to highly assured and compliant solutions for healthcare, we understand that digital transformation is key to your future success.
We share your vision for the future and strive to accelerate your impact on the world. We bring both cutting edge technology and an expansive view of what’s possible to every engagement. Our delivery model and unique approaches harness our deep technical and domain knowledge, providing forward-looking insights and practical solutions to power secure mission acceleration.
SMX is an Equal Opportunity employer including disabilities and veterans.
Selected applicant may be subject to a background investigation and/or education verification.
SMX does not sponsor a new applicant for employment authorization or immigration related support for this position (i.e. H1B, F-1 OPT, F-1 STEM OPT, F-1 CPT, J-1, TN, E-2, E-3, L-1 and O-1, or any EADs or other forms of work authorization that require immigration support from an employer).
Skills Required
- TS/SCI with CI Poly clearance
- PhD in Science, Technology, Engineering or Mathematics with 15 years of experience OR a Master’s with 18 years OR a Bachelor’s with 20 years
- 15 years experience with assessment and accreditation of national security systems
- 10 years experience validating system security controls
- 10 years experience with vulnerability management
- 8 years experience with RMF
- 5 years experience with POA&M tracking and resolution
SMX Compensation & Benefits Highlights
The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about SMX and has not been reviewed or approved by SMX.
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Fair & Transparent Compensation — Salary ranges are publicly listed on many postings and a pay transparency statement clarifies how location, contract, and credentials influence offers. This visibility helps set clear expectations around compensation.
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Leave & Time Off Breadth — About four weeks of PTO plus 11 paid federal holidays are highlighted in careers materials. Paid military leave on some roles further expands time‑off coverage.
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Retirement Support — A 401(k) with a dollar‑for‑dollar match on the first 5% and immediate vesting is called out in role descriptions. Traditional and Roth options support long‑term savings.
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What We Do
SMX is a global technology and advanced engineering provider specializing in Cloud Solutions, C5ISR, and Advanced Engineering / IT. Our tradition of delivering innovative, technical solutions dates back to 1995, however, you may know us better by one of our legacy company names: Trident Technologies, Smartronix, Datastrong, or C2S Consulting Group. With the support of OceanSound Partners, our private equity investment sponsor, we began operating as one business starting in 2019 and became SMX in 2021. We operate in close proximity to our clients around the globe and have core locations in Alabama, California, the DC Metro, Florida, Hawaii, Maryland, and Massachusetts. Today, as SMX, we are one team and together empower government and commercial enterprises to become more effective, innovative, and resilient, no matter what challenges they face. SMX offers competitive benefits, excellent work environments, and growth opportunities for our employees while continuing to expand operations and support our communities. We have more than 25 years of rapid and consistent growth with continuous recognition as an employer-of-choice technology company. In addition, we have earned coveted industry quality and business certifications; have a strong commitment to business partnerships, ethics, compliance, and sustainability; and have a multitude of premier contracting vehicles. The combination of these attributes allows us to provide sound, repeatable business solutions yet remain flexible and agile to quickly adapt to specific customer requirements. Committed to ensuring the highest levels of customer satisfaction, SMX is structured around the programs and technologies we support to provide optimal and seamless operations. We have maintained a reputation for excellence, helping to assure the missions of our Department of Defense, Public Sector, Fortune 1000, and other Government and commercial customers.
