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Information Systems Security Engineer (ISSE) - Senior

iNovex Information Systems
United States, Virginia, Herndon
May 27, 2024
Job Brief


Job Description

We're searching for talented individuals who provide engineering services for network infrastructure as well as sophisticated enterprise computing infrastructure including end-point devices, data center hosted servers, multi-Cloud services as well as virtualized applications, and storage systems. This program will maximize the effectiveness and efficiency of our country's most important missions both at home and abroad. If you are ready to support a high-performing team that truly makes a difference, then come join us!

Job Description:

We are looking for an Information Systems Security Engineer (ISSE) to join our technology-based program supporting a key government customer. The ISSE assesses and mitigates system security threats/risks throughout the program life cycle. Contributes to the security planning, assessment, risk analysis, risk management, certification and awareness activities for system and networking operations. As an Information Systems Security Engineer (ISSE), you will play a crucial role in enhancing our security infrastructure and ensuring a secure network.

The Information Systems Security Engineer shall possess the following capabilities:

  • Minimum of Three (3) years' experience supporting the customer's A&A projects.
  • 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 understand 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 to write the Systems Security Plans (SSP)/CONOPS in the Xacta application.
  • Gather the information by working with various team members 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 provide all required artifacts (i.e., evidence gathering from the teams)
  • Coordinating with various contractor 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 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 to know when it's time to re-submit for accreditation or an accreditation extension.

Additional Requirements:

  • Previous ISSE experience directly supporting the customer.
  • Previous ISSO experience directly supporting the customer is also helpful.
  • Various security tools and reports such as Xacta, 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


  • Bachelor's or Master's Degree are preferred in one or more technical discipline but can be waived if previous direct ISSE support to this customer's agency.
  • Three (3) years of experience can be considered in lieu of a degree for a total of six (6) years of experience.

Position requires active Security Clearance with appropriate Polygraph

Headquartered in Columbia, MD, RealmOne provides advanced technology services and solutions focused on cybersecurity, intelligence collection and analysis, data science and advanced analytics, and hyper-automation to support our country's most critical national security initiatives.

We're an equal opportunity employer. All applicants will be considered for employment without attention to race, color, religion, sex, sexual orientation, gender identity, national origin, veteran or disability status.

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