Information System Security Engineer (ISSE)

Maximus
Arlington, VA
Description & Requirements

Maximus is seeking a highly skilled Information Systems Security Engineer (ISSE) to join our team in Arlington, VA.

The ideal candidate will excel in the technical aspects of security, including the design, implementation, and maintenance of security solutions within a highly classified hybrid environment. This role requires a deep understanding of cybersecurity principles and the ability to configure and manage security tools in accordance with the Joint Special Access Program (SAP) Implementation Guide (JSIG). The successful candidate will be a proactive problem-solver, an effective communicator, and a collaborative team player dedicated to maintaining robust security postures.

This role is on-site, five days a week and requires an active TS/SCI security clearance.

Maximus TCS (Technology and Consulting Services) Internal Job Profile Code: TCS034, T4, Band 7

Job-Specific Essential Duties and Responsibilities:

  • Technical Security Expertise:
    • Provide technical expertise in the design, implementation, and maintenance of security solutions.
    • Ensure that security measures are integrated into the information system throughout its lifecycle.
  • Configuration and Management of Security Tools:
    • Configure, administer, and maintain security tools, including ACAS, Splunk, MS Defender, and other cyber tools to ensure compliance with security policies and standards.
    • Implement and manage Security Technical Implementation Guides (STIGs) and other security configurations in accordance with the JSIG.
    • Operate and maintain (O&M) security assets, including Security Information and Event Management (SIEM) systems, Intrusion Detection Systems (IDS), Data Loss Prevention (DLP) tools, and security audit log repositories and databases.
  • Collaboration and Support:
    • Work closely with the Information System Security Manager (ISSM), Information System Security Officer (ISSO), and other stakeholders to ensure that security measures align with overall security policies.
    • Support Cyber Analysts by providing technical configurations and data necessary for security assessments and incident response.
    • Support detailed reporting and documentation of security assessments, configurations, and incidents.
  • Documentation and Compliance:
    • Generate and maintain documentation required for RMF processes, including SOPs, security plans, risk assessments, and Plans of Action and Milestones (POA&M).
    • Ensure compliance with JSIG and other relevant security standards and policies.
  • Continuous Improvement and Training:
    • Stay updated with the latest security trends, tools, and best practices.
    • Continuously improve security measures and practices to address emerging threats and vulnerabilities.
    • Provide training and guidance to team members on security tools and practices.

Job-Specific Minimum Requirements:

  • Active TS/SCI clearance with the ability to obtain CI Poly.
  • A Bachelor's degree in a relevant field (e.g., Computer Science, Information Systems Management, Engineering) is required for this position.
  • 4 years of relevant work experience may be considered in lieu of the degree requirement.
  • Minimum of 8 general years of experience in cybersecurity or a related field.
  • 2+ years of experience displaying strong knowledge of operating systems (e.g., Windows, Linux).
  • 2+ years of cybersecurity experience in the Department of Defense (DoD) or Intelligence community.
  • Strong knowledge of cybersecurity principles, tools, and techniques.
  • Strong familiarity with the Risk Management Framework (RMF), and National Institute of Standards and Technology (NIST) FIPS 199/200 and Special Publications.
  • Security+ or equivalent certification (DoD 8570)

Preferred Skills and Qualifications:

  • IAT level III certification (CASP+ CE, CCNP Security, CISA, CISSP (or Associate), GCED, GCIH), or ability to obtain certification within six months of hiring.
  • Experience as a Cyber or Security Analyst for federal information systems.
  • Knowledge of Splunk is a plus.
  • Experience with the Special Access Programs (SAPs) and Intelligence Community (IC).
  • Knowledge and/or understanding of Joint Special Access Program Implementation Guide (JSIG)
  • The ability to adapt in fast paced environments, comfort with ambiguity.
  • Familiarity with cloud technologies, security practices, and agile methodologies.
  • Strong self-organization and self-management skills with emphasis on self-initiation and follow-through.
  • Proven written and oral communication skills.
  • The ability to work independently.

#techjobs #clearance #veteranspage

Minimum Requirements


TCS034, T4, Band 7

EEO Statement


Maximus is an equal opportunity employer. We evaluate qualified applicants without regard to race, color, religion, sex, age, national origin, disability, veteran status, genetic information and other legally protected characteristics.

Pay Transparency


Maximus compensation is based on various factors including but not limited to job location, a candidate's education, training, experience, expected quality and quantity of work, required travel (if any), external market and internal value analysis including seniority and merit systems, as well as internal pay alignment. Annual salary is just one component of Maximus's total compensation package. Other rewards may include short- and long-term incentives as well as program-specific awards. Additionally, Maximus provides a variety of benefits to employees, including health insurance coverage, life and disability insurance, a retirement savings plan, paid holidays and paid time off. Compensation ranges may differ based on contract value but will be commensurate with job duties and relevant work experience. An applicant's salary history will not be used in determining compensation. Maximus will comply with regulatory minimum wage rates and exempt salary thresholds in all instances.

Accommodations
Maximus provides reasonable accommodations to individuals requiring assistance during any phase of the employment process due to a disability, medical condition, or physical or mental impairment. If you require assistance at any stage of the employment process-including accessing job postings, completing assessments, or participating in interviews,-please contact People Operations at [email protected] .
Posted 2025-09-30

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