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Information System Security Engineer; ISSE - Mid

Job in Chantilly, Fairfax County, Virginia, 22021, USA
Listing for: RealmOne
Full Time position
Listed on 2026-05-26
Job specializations:
  • IT/Tech
    Cybersecurity, Information Security
Salary/Wage Range or Industry Benchmark: 100000 - 125000 USD Yearly USD 100000.00 125000.00 YEAR
Job Description & How to Apply Below
Position: Information System Security Engineer (ISSE) - Mid

Job Brief

Cybersecurity

Job Description

Realm One was built on the principle that people matter first and foremost. We believe in providing a strong work/life balance by investing in our employees and encouraging professional and personal growth. We do this by offering exceptional benefits, flexible schedules, and the tools necessary to achieve success through paid training, mentoring, and the opportunity to work alongside top-notch industry professionals.

We are looking for skilled individuals to provide technical expertise in support of a government client.

Position is contingent upon contract award.

We are seeking an experienced Information System Security Engineer (ISSE) to join our technology-based program supporting a key government customer. As an ISSE, you will play a critical role in managing the operational security posture and ensuring information system security policies, standards, and procedures are established and followed.

The ISSE - Mid shall possess the following capabilities:

  • Provide support for a program, organization, system, or enclave's information assurance program.
  • Provide management support for proposing, coordinating, implementing, and enforcing information systems, security policies, standards, and methodologies.
  • Manage operational security posture for an information system or program to ensure information systems security policies, standards, and procedures are established and followed.
  • Provide management of security aspects of the Information System and perform day-to-day security operations of the system.
  • Manage the performance of vulnerability/risk assessment analysis to support security authorization.
  • Provide management support to configuration management (CM) for information system security software, hardware, and firmware.
  • Provide configuration management (CM) for information systems security software, hardware, and firmware.
  • Manage changes to systems and assess the security impact of those changes.
  • Manage the process and preparation of documentation reviews to include System Security Plans (SSPs), Risk Assessment Reports, Certification and Accreditation (C&A) packages, and System Requirements Traceability Matrices (SRTMs).
  • Support security authorization activities in compliance with CSS Risk Management Framework (RMF) process and DoD Information Assurance Certification and Accreditation Process (DIACAP).

Qualifications:

  • Bachelor's degree in Computer Science, Information Assurance, Information Security System Engineering, or related discipline from an accredited college or university is required. In lieu of a bachelor's degree, four (4) additional years of ISSE experience may be substituted.
  • Ten (10) years' experience as an ISSE on programs and contracts of similar scope, type, and complexity to include recent experience within the last Four (4) years with Cybersecurity principles and technology, including access/control, authorization, identification and authentication, PKI, network and enterprise security architecture is required.
  • DoD 8570 compliance with IASAE II is required.

Position requires active Security Clearance with appropriate Polygraph

Pay Range: Competitive

The Realm One pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Our approach to crafting offers considers various factors to establish an equitable and competitive compensation package. These considerations include, but are not limited to, the extent and intricacy of the role's responsibilities, the candidate's educational background, their work experience, and the specific competencies crucial for success in the role.

Realm One Benefits:

  • Healthcare Coverage + Insurance:
    Medical:
    Three (3) rich healthcare options through Care First with 100% or majority company-paid premiums. Tax-advantaged health savings account available with generous employer contribution. Dental + Vision: 100% employer-paid for employees and family with buy-up option available.
  • Retirement + Savings: 401K - 10% TOTAL CONTRIBUTION - 5% safe harbor - 5% annual profit share. Immediate vested, no match required!
  • Paid Time Off + More: 4 weeks starting PTO - 11 federal holidays + 2 floating…
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