Cyber Security Engineer 3

Support DOMEX Technology Platform contract task orders by designing, developing, and implementing secure systems across on-premises infrastructure while integrating security across the system lifecycle.

Responsibilities

• Support secure architecture, design, and implementation of DoD systems in line with DoDI , NIST SP 800-53 , and other DoD security guidance.
• Lead integration of RMF activities into the SDLC , including selection, implementation, and validation of security controls.
• Develop and maintain SSPs , SARs , risk assessments, and POA&Ms .
• Apply STIGs and validate compliance using SCAP , STIG Viewer , and ACAS .
• Maintain vulnerability scanning infrastructure, analyze vulnerabilities, and support mitigation or risk acceptance decisions.
• Support system authorization, incident response, forensics analysis, and security automation efforts.

Requirements

• Active TS/SCI with ability to obtain a CI Polygraph .
• Bachelor’s degree and minimum 6 years of experience in the category field; 3 additional years of experience may substitute for the bachelor’s degree.
• At least one DoD -M IASAE Level II certification: CISSP , CISSP-ISSAP , CISSP-ISSEP , CSSLP , or CASP+ CE .
• Developer experience preferred in at least one scripting or programming language.
• Experience reviewing cybersecurity vulnerabilities for risk and relevance, and building mitigation or remediation plans across systems, network, application, and database vulnerabilities.
• Ability to architect, design, troubleshoot, maintain, and deploy vulnerability scanning solutions such as OWASP , Fortify , SonarQube , and Tenable .
• Experience with XACTA , eMASS , or similar tools.
• Strong understanding of Microsoft Windows and Linux/UNIX operating systems.
• Experience with middleware and web technologies, databases, TCP/IP networking, and CI/CD platforms.
• Familiarity with NIST 800-171 , NIST 800-172 , NIST SSDF , CMMC , and CNSSI 1253 .
• Experience supporting DoD/IC systems through the RMF+ process.

Technologies

• DoDI
• NIST SP 800-53
• RMF, RMF+
• SDLC
• STIGs
• SCAP, STIG Viewer, ACAS
• OWASP, Fortify, SonarQube, Tenable
• XACTA, eMASS
• Microsoft Windows, Linux/UNIX
• TCP/IP, CI/CD
• NIST 800-171, NIST 800-172, NIST SSDF
• CMMC, CNSSI 1253
• CISSP, CISSP-ISSAP, CISSP-ISSEP, CSSLP, CASP+ CE

Preferred Qualifications

• Software development experience with Python , Java , or React .
• Experience successfully achieving ATO under RMF+ .
• Experience with big data applications.
• Experience with GitLab , Jira , and Confluence .
• Experience in Agile environments.
• Experience with OIDC or OAuth2 .
• Experience with Kubernetes , Rancher , Strimzi , Cloudera , Active Directory , and scripting languages such as Bash , Python , or PowerShell .

Required Education and Experience Equivalency

• High School Diploma/GED with 9 years of experience.
• Associate’s Degree with 9 years of experience.
• Bachelor’s Degree with 6 years of experience.
• Master’s Degree with 6 years of experience.
• PhD with 6 years of experience.

Benefits

• 100% company-paid medical premiums for employees and eligible dependents (CareFirst, Kaiser, UnitedHealthcare options including PPO, POS, HMO, and HSA-compatible plans).
• 100% company-paid dental premiums for employees and eligible dependents.
• 100% company-paid vision premiums for employees and eligible dependents.
• 100% company-paid premiums for short-term disability.
• 100% company-paid premiums for long-term disability.
• 100% company-paid premiums for accidental death & dismemberment (AD&D).
• 100% company-paid premiums for life insurance up to $200,000 .
• 401(k) with immediate vesting: 4% company match plus 4% non-elective company contribution (8% total).
• 401(k) pre‑tax and Roth options.
• Up to 20 days flexible paid time off (PTO).
• 11 paid floating holidays.
• Flexible work schedules, including flex time and compressed work periods (contract and project‑dependent).
• Employee referral bonuses up to $10,000 per hired referral.
• Additional bonus opportunities for exceptional performance and contributions to business development and company growth (role‑dependent).

Compensation

• Competitive fixed salary or hourly pay (based on experience, skills, location, and internal equity).
• Employee referral bonuses up to $10,000 per hired referral.
• Additional bonus opportunities for exceptional performance and contributions to business development and company growth (role‑dependent).