Sr. Information System Security Officer
- Level
- Senior
- Visa
- Not offered
Not stated in the posting: salary, work type.
Open. First seen 6 October 2026.
About the role
*This position requires an Active Top Secret SCI with Fullscope Polygraph clearance to be considered.*
ProSync is looking for a Senior Information Systems Security Officer (ISSO) who will provide aid to the program, organization, system, or enclave's information assurance program and will also lend assistance for proposing, coordinating, implementing, and enforcing information systems security policies, standards, and methodologies in addition to the below.
- Enhancing the system security posture by supporting the program, organization, system, or enclave's information assurance initiatives and enforcing security policies, standards, and methodologies.
- Overseeing security operations for information systems, managing daily security aspects, evaluating security solutions for classified processing, and conducting vulnerability and risk analysis/assessments for system authorization.
- Managing configuration and system integrity by administering configuration management for security software, hardware, and firmware, ensuring compliance with security controls, and assessing the impact of system changes.
- Developing and maintaining security documentation and System Security Plans lifecycle management activities to ensure compliance with system security requirements.
- Providing technical expertise in security policies and operations, supporting the implementation and maintenance of security measures and countermeasures, and collaborating with stakeholders to maintain compliance and strengthen the system security posture.
- Driving continuous improvement by assessing existing security processes, identifying vulnerabilities, and implementing proactive solutions to enhance system resilience.
Prosync's standard text
ProSync Technology Group, LLC (ProSync) is an award-winning, SDVOSB Defense Contracting company with a strong military heritage and a record of excellence in supporting the Department of Defense and the Intelligence Community. If you have prior military service or government contracting experience, are proud to serve and support our nation, and want to help support ProSync's mission to "Define and Redefine the State of Possible,” please apply today!
Requirements
- A Bachelor of Science degree in Computer Science, Information Assurance, Information Security, or a related discipline, as well as twelve (12) or more years of relevant experience. In lieu of a degree, a minimum of sixteen (16) years of experience or more may be considered on a case by case basis.
- Must have ten (10) or more years of in-depth experience as ISSO or combination of ISSO and other security related role supporting IC or DoD programs and contracts of similar scope, type, and complexity.
- Proficient with customer security tools, corporate repositories, playbooks and guidelines
- Knowledgeable with applicable frameworks, regulations, standards, policies and procedures
- Operational understanding of server and IA technologies, internetworking protocols and services
- Experience supporting over 30 SSP's.
- Must have certifications & compliance with DoD 8140.03 with IAM Level II or higher (i.e., CASP+, CISSP, etc.).
- A Top Secret/SCI w/ Polygraph is required. (We are unable to sponsor clearances at this time.)
Prosync's standard text
Benefits
Join PROSYNC and enjoy our great benefits!
Compensation:
- We offer bonuses that are awarded quarterly to our employees and our compensation rates are highly competitive.
Prosync's standard text
Health & Retirement:
- We offer a comprehensive Health Benefits package and 401K Retirement plan so you can take care of yourself and your family, now and in the future. Other health-related benefits include an employee assistance program for those difficult times or when you need to take care of your mental health.
Education:
- Individual growth is a priority at ProSync. Employees are encouraged to take advantage of our company-sponsored continuing education program so you can get your degree or that next certification you need to propel you to the next level.
Prosync's standard text
Work/Life Balance:
- A healthy work/life balance is essential for building and executing your work effectively at ProSync, but it’s also necessary to allow you the room to pursue everything else you want to develop in your personal life.. We offer generous Paid Time Off and 11 paid holidays a year. ProSync also provides flexible work options that work with your schedule and lifestyle.
What this role asks for
Particular to this role
Embedded Systems · IAM
Rare in Prosync's other 44 open postings.
69% of this description is written for the role. The rest is Prosync's standard text, folded away below.
Read against Prosync's other open postings on this site.
The team: Programs HIRES STEADILY
This role is one of 37 open in Programs. 14 were posted in the last 30 days and the oldest in January: a team that hires all year rather than one being built.
WHAT THE TEAM WORKS WITH, ACROSS ITS POSTINGS
Cybersecurity (11 of 37), Linux (9 of 37), Jira (7 of 37), Cisco (6 of 37), Python (6 of 37), Kubernetes (5 of 37), Docker (4 of 37)
OTHER ROLES ON THIS TEAM
- Systems Engineer I/II OR Software Engineer 0/I/II posted Oct 2
- Systems Engineer I OR Systems Administrator II posted Oct 2
- Software Engineer II (Zabbix) posted Oct 2
- System Engineer V posted Oct 2
- Network Engineer II posted Oct 2
- Network Engineer II posted Oct 2
- System Engineer III (Linux/Windows) posted Oct 2
- Software Engineer II/III (Java) posted Oct 2
- Software Engineer I/II posted Oct 2
- Software Engineer II posted Oct 2
- Network Engineer II posted Oct 2
- System Engineer IV posted Oct 2
- Software Engineer III posted Sep 30
- Information Security Specialist II/III (SCG) posted Sep 17
- Security Specialist I posted Aug 17
- Security Specialist I (COMSEC/PHYSEC/INFOSEC/PERSEC) posted Jul 13
- Security Specialist II/Alarms/Locks posted Jun 25
- Security Specialist II (COMSEC/PHYSEC/INFOSEC/PERSEC) posted Jun 17
- Locksmith/Security Specialist II posted May 22
- Security Specialist II posted May 22
- Information System Security Specialist III posted May 1
- Information System Security Specialist II posted May 1
- Security Specialist II (COMSEC/PHYSEC/INFOSEC/PERSEC) posted Apr 29
- Security Specialist III (COMSEC/PHYSEC/INFOSEC/PERSEC/OPSEC) posted Apr 29
- Program/Project Manager II posted Apr 29
- Management Analyst II posted Apr 29
- Management Analyst I posted Apr 29
- Supervisory Technical Writer posted Apr 14
- Management Analyst II posted Apr 14
- Technical Writer II posted Apr 8
- Technical Instructor/Curriculum Developer posted Apr 8
- Information System Security Officer 2 posted Mar 9
- System Engineer III posted Feb 10
- System Administrator II posted Feb 9
- Technical Writer II posted Feb 9
- System Engineer III posted Jan 13
From the team and dates on Prosync's own job board.
Other openings for this role
2 open postings for this role in Annapolis Junction, first posted 4 October 2026. The company is likely hiring for more than one position. None has been taken down and posted again.
- 6 October 2026 – open (this posting)
- 4 October 2026 – open
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