Sr Information Systems Security Engineer (ISSE), Advisor - TS/SCI w/poly
$135k - $216kPeraton
Responsibilities
Peraton is seeking an Information Systems Security Engineer to support our Federal Strategic Cyber programs.
Location: Huntsville AL
In this role, you will:
- Lead, mentor, and supervise a team of contractor security professionals responsible for the end-to-end implementation of the RMF lifecycle for FBI IT systems.
- Oversee and coordinate activities within the Prepare step, ensuring roles, responsibilities, and risk management strategies are clearly defined and maintained.
- Guide system categorization efforts to ensure all information systems are appropriately classified based on mission/business impact and regulatory requirements.
- Advise on the selection, tailoring, and documentation of security controls aligned with system categorizations, Bureau risk appetite, and compliance requirements.
- Oversee the implementation of technical, operational, and management controls throughout system and application lifecycles, with a particular focus on quality and completeness of all deliverables.
- Ensure comprehensive security control assessments are planned, executed, and documented to validate the effectiveness of implemented safeguards.
- Prepare risk management documentation for system authorization and executive decision-making.
- Direct ongoing monitoring and continuous assessment activities, collecting metrics to adjust security strategies and ensure sustained compliance.
- Serve as a principal technical advisor on cybersecurity, bringing subject-matter expertise to risk analysis, incident response, system remediation, and audit support efforts.
- Foster a culture of security awareness, providing technical guidance and training to both team members and stakeholders.
- Track, report, and communicate status, risks, and improvement opportunities related to security engineering activities to leadership and stakeholders.
- Maintain up-to-date knowledge of RMF, NIST guidance, and industry best practices in support of continuous process improvement.
Qualifications
Required:
- Bachelor’s degree and 8 years of experience in secure design, analysis, and test of information security systems and products.
- Minimum of 8 years of experience applying methods, standards and approaches for ensuring the baseline security safeguards are appropriately implemented and documented.
- Minimum of 8 years of experience creating and updating security test plans for detecting and mitigating risk to information systems.
- Must have at least 1 of the following certifications OR advanced degree from the list below:
- CCNP Enterprise, CISM, CISSP-ISSAP, CISSP-ISSEP, GCIA, GDSA, GICSP OR
- Doctorate - Computer Science
- Doctorate – Cybersecurity
- Doctorate - Data Science
- Doctorate - Information Systems
- Doctorate - Information Technology
- Doctorate - Software Engineering
- Master of Science - Strategic Information and Cyberspace Studies (NDU CIC)
- Masters - Computer Science
- Masters – Cybersecurity
- Masters - Data Science
- Masters - Information Systems
- Masters - Information Technology
- Active TS/SCI security clearance with the ability to obtain a polygraph
- Active TS/SCI security clearance with the ability to obtain a polygraph
Preferred:
- Cloud certification preferred
Benefits: Peraton offers enhanced benefits to employees supporting this critical National Security program, which include heavily subsidized employee benefits coverage for you and your dependents, 25 days of PTO accrued annually up to a generous PTO cap, and eligibility to participate in an attractive bonus plan.
Salary Range Estimate:
The estimate displayed represents the typical salary range for this position and is just one component of Peraton's total compensation package for employees. Other rewards may include annual bonuses, short- and long-term incentives, and program-specific awards. In addition, Peraton provides a variety of benefits to employee s.
Peraton Overview
Peraton is a next-generation national security company that drives missions of consequence spanning the globe and extending to the farthest reaches of the galaxy. As the world’s leading mission capability integrator and transformative enterprise IT provider, we deliver trusted, highly differentiated solutions and technologies to protect our nation and allies. Peraton operates at the critical nexus between traditional and nontraditional threats across all domains: land, sea, space, air, and cyberspace. The company serves as a valued partner to essential government agencies and supports every branch of the U.S. armed forces. Each day, our employees do the can’t be done by solving the most daunting challenges facing our customers. Visit peraton.com to learn how we’re keeping people around the world safe and secure.
Target Salary Range
$135,000 - $216,000. This represents the typical salary range for this position. Salary is determined by various factors, including but not limited to, the scope and responsibilities of the position, the individual’s experience, education, knowledge, skills, and competencies, as well as geographic location and business and contract considerations. Depending on the position, employees may be eligible for overtime, shift differential, and a discretionary bonus in addition to base pay.
EEO
EEO: Equal opportunity employer, including disability and protected veterans, or other characteristics protected by law.
- ...A technology solutions company based in Huntsville, AL is seeking a Senior Software Engineer to support national security. The ideal candidate will have a TS/SCI clearance and at least 8 years of experience in software engineering, with expertise in Python and JavaScript...Senior
- ...be Performed: AnaVation is looking for a dedicated Information System Security Engineer (ISSE) to join our team. This position is part of a talented... ...ability to successfully pass a polygraph and obtain SCI accesses. Required Qualifications: Ten (10) years...SuggestedFull timeTemporary workImmediate start
- General information Requisition # R70050 Locations USA-AL-Huntsville... ...Posting Date 08/17/2026 Security Clearance Required TS/SCI Remote Type Onsite... ...customer-oriented Senior Information System Security Engineer (ISSE) to join our team in Huntsville...SeniorFull timeWork at officeLocal areaRemote work
$170k - $190k
...Federal is seeking a Senior Information Systems Security Engineer to work in our Huntsville,... ...,000 - $190,000The Senior ISSE SME will support... ...senior security engineering advisor for assigned federal information... ...Top Secret clearance with SCI eligibility.Ability to meet...SeniorContract work- OverviewVTG is seeking a Senior Information Systems Security Engineer (ISSE) to support our national security customer... ....Serve as a principal technical advisor on cybersecurity, bringing subject-... ....Active Top Secret Clearance w/ SCI eligibility Certified Information Systems...SuggestedContract workFor contractorsWork at office
- ...the Office of the Chief Engineer.In this role you will... ...to both internal MDA systems as well as external systems... ...communicate technical information to senior MDA leaders.... ...to qualify for a TS/SCI clearance, preferred.Must... ...flight or access to secure federal facilities/...
- ...impact and want the excitement of being on a team that wins.Job DescriptionWe are seeking an ambitious Mid-Level Information System Security Engineer (ISSE) to support our customer in the NASA Office of the Organizational Computer Security Official (OCSO). In this role...Full timeWork at officeLocal area
$80k - $128k
...generation national security company that... ...an experienced Engineering Knowledge... ...Technologies, Operating Systems, and... ...~Work with information technology professionals... ...Qualifications: ~Active TS/SCI with ability to obtain a Poly. ~Min 8... ...Current TS SCI w/ Poly. ~...Contract workTemporary workShift work- ...PeopleTec, Inc. is looking for a Senior Software Engineer to support its Huntsville, AL location. The role requires 8 years of experience... ...Python. Candidates must have an active DoD Top Secret clearance with SCI eligibility. Responsibilities include developing, testing, and...Senior
- ...handling customer issues. Candidates must have a Bachelor’s degree or equivalent experience, and an active DoD Top Secret clearance with SCI eligibility upon hire. Skills required include Java, Spring Boot, and AWS among others. The position also requires U.S....Senior
$135.8k - $203.6k
...on revolutionary systems that impact people... ...opportunity for a Sr. Principal Software... ...Development Analyst - TS Analyst Lead (26-3... ...from formal and informal event runs.... ...list your current security clearance and IAT... ...Science, Software Engineering, Mathematics, Physics...SeniorFull timeWork experience placementRemote workWorldwideRelocationFlexible hoursShift work- ...Clearance: TS (CI Poly Eligible to sit for a... ...will provide technical engineering support for our large... ...design, and develop total system or product solutions for enterprise-wide information technology or engineering... ...ability to obtain an SCI ~10+ years of Cisco...SeniorLocal area
- ...Title : IT Cyber Security Specialist (contingent 03... ...Adversarial Assessments. TS/SCI required.... ...expert on Cybersecurity/Information Assurance activities based... ...consultation to Information System Security Officers (... ...Provide Cybersecurity engineering subject matter expertise...Full timeWork experience placementInterim roleWork at office
- ...Multiplier is looking for an Electronic Security System (ESS) Engineer, Sr. to support work for the U.S. Army.... ...(40 or older), disability, genetic information, or any other protected class... ...InsuranceCritical Illness Insurance401k (w/ employer match) after six (6) months...SeniorContract workFor subcontractorLocal area
- ...LevelStaffEducationHigh School / GEDTravel-Security Clearance RequiredTS/SCI with CI PolygraphJob DescriptionPrescient Edge is seeking a Sr. General Military Intelligence... ...Clearance: Security clearance required TS/SCI with CI POLY or the ability to obtain CI POLY.Location...SeniorContract work
- ...LevelStaffEducationHigh School / GEDTravel-Security Clearance RequiredTS/SCI with CI PolygraphJob DescriptionPrescient Edge is seeking a Sr. Force Protection and Terrorism Threat... ...: Security clearance required TS/SCI with CI POLY or the ability to obtain CI POLY.Location...SeniorContract work
- ...is seeking a Senior Cybersecurity Engineer to support the Combat Capabilities... ...Center (AvMC) Software, Simulation, Systems Engineering & Integration... ...implementation, and documentation of technical security solutions for software and information systems throughout the product...SeniorContract work
- ...Clearance RequiredTS/SCI with CI... ...Edge is seeking a Sr. All Source... ...supported, and engaged.Security Clearance:... ...clearance required TS/SCI with a CI POLY or the ability... ..., dual-use systems and technologies... ...and warning (I&W), help define USSPACECOM... ...'s Critical Information Requirements (...SeniorContract work
$87.1k - $157.45k
Leidos currently has an opening for a Systems Engineer in Huntsville supporting our Defense Sector... ...and in writingActive DoD Top Secret security clearance to be considered; U.S. Citizenship... ...to obtain and maintain a Top Secret SCI Poly clearanceMaster’s degree in systems...Full time$86.8k - $198k
...independently with minimal supervisionTS/SCI clearanceHS diploma or GEDNice If You... ...Applicants selected will be subject to a security investigation and may need to meet eligibility... ...requirements for access to classified information; TS/SCI clearance is required.CompensationAt...SeniorFull timeContract workPart timeWork at officeLocal areaRemote work- ...Job Description Job Description Sr Network Engineer - TS Clearance Clearances Required: Active... ...Must have a DoD 8140 certification (ex: Security + CE) ~ U.S. citizenship with an... ...Technologies and Cybersecurity Strong systems administrator experience, specifically...SeniorRemote workFlexible hours
- General information Requisition # R69397 Locations USA... ...Date 07/21/2026 Security Clearance Required TS/SCI Remote Type Onsite... ...oriented Senior Information System Security Officer (ISSO) to... ...parametersManage the risks to ISs and other FBI assets by...SeniorFull timeWork at officeLocal areaRemote work
- ...clearance with Sensitive Compartmented Information (SCI) eligibility to start due to federal contract... ...for monitoring computer networks for security issues. - Investigating security... ...measures and operating software to protect systems and information infrastructure,...SeniorContract workLocal area
- ...involves translating objectives into actionable IT strategies and leading architecture efforts. You will oversee routing, switching, security, and WAN/LAN integration, work with stakeholders, and guide project scope, plans, and timelines in a fully onsite setting. #J-18...Senior
$131.1k - $196.7k
...opportunities to work on revolutionary systems that impact people's lives around the... ...Northrop Grumman Defense Systems is seeking Sr. Principal Engineer Software – 15321. This position will... ...active U.S. Government DoD Top Secret security clearance at time of application,...SeniorFull timeRelocation packageMonday to ThursdayShift work$149.3k - $223.9k
...opportunities to work on revolutionary systems that impact people's lives... ...Principal Cyber Systems Engineer - 2018-2. This position is located... ...• Design and implement security measures, such as firewalls, intrusion... ...Bash.Basic Qualifications:• Sr Principal Cyber Software...SeniorFull timeRelocation packageShift work- ...a team of contractor security professionals responsible... ...lifecycle for FBI IT systems. - Oversee and... ...efforts to ensure all information systems are appropriately... ...a principal technical advisor on cybersecurity, bringing... ...related to security engineering activities to leadership...For contractorsWork at office
- ...professional business and information management... ...Space Systems Command (SSC), is... ...enhance national security. Join us and... ...The ideal Sr Space Systems Engineer SME possesses deep... ...senior technical advisor to program leadership... ...management Active TS/SCI STI-TEC...SeniorContract workTemporary workFor contractorsFlexible hours
$94k - $112k
...Description Elastic Software Engineer -Sr. IILocation: Dulles, VA,... ...cyber, data operations, systems integration and intelligence... ...with ability to obtain TS/SCI eligibility ~ Must be able... ...Level I (e.g., Certified Information Systems Security Professional (CISSP)) certification...Senior- System One in Huntsville, AL is seeking a Cyber Threat Intelligence Analyst to monitor threats, investigate incidents... ...automation to expand defenses; and present findings to cross-functional teams. TS clearance or ability to obtain CI poly required. #J-18808-Ljbffr System OneSenior
Do you want to receive more vacancies?
Subscribe and receive similar vacancies to Sr Information Systems Security Engineer (ISSE), Advisor - TS/SCI w/poly. Be the first to apply!
- transmission engineer Huntsville, AL
- information systems engineer Huntsville, AL
- telecommunication engineer Huntsville, AL
- communications engineer Huntsville, AL
- digital communications systems engineer Huntsville, AL
- information technology security engineer Huntsville, AL
- senior cloud security engineer Huntsville, AL
- security engineer Huntsville, AL
- network security engineer Huntsville, AL
- aws cloud security engineer Huntsville, AL





