Demo

Cyber Security Systems Engineer (ISSE)

B/CORE
Chantilly, VA Full Time
POSTED ON 5/3/2026
AVAILABLE BEFORE 5/31/2026
Chantilly, VA

TS/SCI with Poly

At Bcore, our strength comes from how we deliver impact to the mission. Whether it’s architecting critical IT solutions, producing actionable intelligence, or developing cutting edge technology, we succeed because of the expertise, collaboration, and agility of our teams. Our Mission Services division combines enterprise IT, cloud solutions, DevSecOps, systems engineering, software development, and operational support. Bcore accelerates decisive advantage for warfighters and intelligence professionals by fusing human insight, rapid-fire engineering, precision-measured outcomes, and relentless grit into mission-ready solutions.

Do you want to join a team that is building tailored technical solutions to modernize our government’s mission and our client’s business? Do you have a desire to change how people work? Are you interested in helping to protect our nation’s cyber interests? Join our growing team supporting customer missions as a Cyber Security Systems Engineer (ISSE) in Chantilly, Virginia.

Required Qualifications

We are actively seeking Cyber Security Systems Engineers with a minimum of eleven (11) years' experience. This opportunity is supporting the customer’s Division level A&A projects which has several Branches within it. The A&A projects are therefore at various levels within the customer organization depending upon which team is responsible for initial development and accreditation vs. long term Operations and Maintenance support. Bachelor's or Master’s Degree are preferred in one or more discipline but can be waived if previous direct ISSE support to this customer’s agency.

Specific skills include the following

  • Possess multi-tasking skills, as well as be a good communicator/facilitator. Comfortable at all levels from developer to senior staff.
  • Knowledge of the complex network environments involving shared networks and multiple security enclaves.
  • Possess the ability to bridge the technical implementation (i.e. developer talk), into commonly understood security words. Often this is a skillset and is not an actual language, but frequently translation or a basic understanding needs to be conveyed by the ISSE when speaking with others or in writing the documentation in order to ensure it’s easy to understand.
  • Document the various security control implementations as well as gather the artifacts that support the Risk Management Framework (RMF) and ICD 503 Security Accreditation for various Assessment and Authorization (A&A) efforts
  • Document and obtain a general understanding of the architecture being developed or that was developed for each project in order to write the Systems Security Plans (SSP)/CONOPS in the Greenlight application.
  • Gather the information by working with various team members in order to write various additional A&A related documents such as Contingency Plan (CP), General User Guide (GUG), Privileged User Guide (PUG), Standard Operating Procedures (SOP’s), etc.
  • Support Accreditation and Authorization (A&A) reviews by ISSO/M, as well as the Security Controls Assessor (SCA)
  • Document the Plans of Actions and Milestones (POA&Ms) implementation responses or mitigations, as well as providing all required artifacts (i.e. evidence gathering from the teams)
  • Coordinating with various contractors and staff personnel to obtain the A&A content, as well as working with various customer security organizations to navigate the customer’s A&A process in order to achieve Authority to Develop (ATD), Interim Authority to Operation (IATT), as well as Authority to Operate (ATO).
  • Keep track of where each of the various A&A projects are within the customer’s A&A process in order to know when it’s time to re-submit for accreditation or an accreditation extension.


Desired Qualifications

  • Previous ISSE experience directly supporting the customer.
  • Previous ISSO experience directly supporting the customer is also helpful.
  • Various security tools and reports such as Greenlight, RoadRunner, Rapid 7, WebInspect, App Detective, and Splunk
  • Public, private and hybrid Cloud experience (AWS, Microsoft Azure, etc.)
  • Virtualization experience (VDI & VMWare)
  • Basic knowledge is helpful, but not required for the following general topics Cloud security control implementation, PKI implementation, STIG compliance and vulnerability management, and Security Development and Operations (SecDevOps)
  • CISSP, or GSLC
  • AWS Certified Security Specialty
  • Basic Excel and Microsoft Office365


BCore is proud to be an equal opportunity workplace. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, disability status, protected veteran status, sexual orientation or any other characteristic protected by law.

Salary.com Estimation for Cyber Security Systems Engineer (ISSE) in Chantilly, VA
$155,141 to $191,096
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