Demo

ISSE

Jobs via Dice
Washington, DC Contractor
POSTED ON 5/31/2026
AVAILABLE BEFORE 6/29/2026
Dice is the leading career destination for tech experts at every stage of their careers. Our client, Apex Systems, is seeking the following. Apply via Dice today!

Job#: 3036297

Job Description:

ISSE

Location: Washington, District of Columbia (Onsite)

Role Overview

We are seeking an Information System Security Engineer (ISSE) for a resource management system. The ISSE will be responsible for the design, implementation, and technical integration of security controls throughout the system lifecycle. This role involves close coordination with Information System Security Officers, system administrators, and developers to maintain a secure architecture and ensure the system operates within approved security boundaries. The position is located onsite in the Washington, DC metro area.

Key Responsibilities

  • Design and implement technical security architectures, ensuring secure integration with the existing mission network infrastructure, including network segmentation and access control mechanisms.
  • Engineer and configure security controls (technical, operational, and management) as documented in the System Security Plan (SSP), ensuring alignment with NIST 800-53 baseline requirements.
  • Conduct security engineering assessments during system development, deployment, and modification phases to identify vulnerabilities and recommend mitigations.
  • Collaborate with development teams to incorporate security requirements into the Software Development Lifecycle (SDLC), including secure coding practices and security testing.
  • Implement and maintain cryptographic solutions and encryption standards for data at rest and in transit.
  • Evaluate and integrate security patches, updates, and system changes.
  • Support the Certification and Accreditation (C&A) process by providing technical documentation and remediation plans to achieve and sustain Authority to Operate (ATO).
  • Monitor and analyze system logs and security events to identify anomalies and investigate potential incidents.
  • Provide technical guidance on secure configuration management and compliance with security implementation guides.
  • Interface with external security auditors and assessors, responding to technical inquiries.
  • Deliver technical security training and knowledge transfer to system administrators and end-users.

Required Qualifications

Experience: A minimum of five (5) years of experience in information system security engineering roles, with expertise in designing and implementing security solutions for classified networks.

Certifications: One or more of the following certifications are required: Certified Information Systems Security Professional (CISSP), Certified Information Security Manager (CISM), Certified Ethical Hacker (CEH), GIAC Security Expert (GSE), or an equivalent IAT Level III/IAM Level III certification.

Technical Skills: Proficiency in security technologies including firewalls, VPNs, PKI, SIEM tools, and web application security frameworks. Familiarity with ColdFusion and Oracle is relevant to the system environment.

Everforth Apex is a world-class IT services company that serves thousands of clients across the globe. When you join Everforth Apex, you become part of a team that values innovation, collaboration, and continuous learning. We offer quality career resources, training, certifications, development opportunities, and a comprehensive benefits package. Our commitment to excellence is reflected in many awards, including ClearlyRateds Best of Staffing in Talent Satisfaction in the United States and Great Place to Work in the United Kingdom and Mexico.

Everforth Apex uses a virtual recruiter as part of the application process. Click for more details. By applying for this job, you agree to receive calls, AI-generated calls, text messages, or emails from Everforth Apex and its affiliates, and contracted partners. Frequency varies for text messages. Message and data rates may apply. Carriers are not liable for delayed or undelivered messages. You can reply STOP to cancel and HELP for help. You can access our privacy policy at

Everforth Apex Benefits Overview: Everforth Apex offers a range of supplemental benefits, including medical, dental, vision, life, disability, and other insurance plans that offer an optional layer of financial protection. We offer an ESPP (employee stock purchase program) and a 401K program which allows you to contribute typically within 30 days of starting, with a company match after 12 months of tenure. Everforth Apex also offers a HSA (Health Savings Account on the HDHP plan), a SupportLinc Employee Assistance Program (EAP) with up to 8 free counseling sessions, a corporate discount savings program and other discounts. In terms of professional development, Everforth Apex hosts an on-demand training program, provides access to certification prep and a library of technical and leadership courses/books/seminars once you have 6 months of tenure, and certification discounts and other perks to associations that include CompTIA and IIBA. Everforth Apex has a dedicated customer service team for our Consultants that can address questions around benefits and other resources, as well as a certified Career Coach. You can access a full list of our benefits, programs, support teams and resources within our 'Welcome Packet' as well, which an Everforth Apex team member can provide.

Everforth Apex Systems is an equal opportunity employer. We do not discriminate or allow discrimination on the basis of race, color, religion, creed, sex (including pregnancy, childbirth, breastfeeding, or related medical conditions), age, sexual orientation, gender identity, national origin, ancestry, citizenship, genetic information, registered domestic partner status, marital status, disability, status as a crime victim, protected veteran status, political affiliation, union membership, or any other characteristic protected by law. Everforth Apex will consider qualified applicants with criminal histories in a manner consistent with the requirements of applicable law.

If you require an accommodation under the Americans with Disabilities Act to participate in an interview with a virtual recruiter or to use our website for a search or application, please contact our Benefits Department at or . Please note that this contact information is strictly to be used for medical ADA accommodations and that no other inquiries will be answered.

UnitedHealthcare creates and publishes the Transparency in Coverage Machine-Readable Files on behalf of Everforth Apex Systems.

Hourly Wage Estimation for ISSE in Washington, DC
$60.00 to $71.00
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