Senior Cybersecurity Engineer
Washington dc, DC
Category: Security
Industry: Technology
Reference ID: JN -022026-105442
Date Posted: 02/10/2026
Shortcut: http://careers.eliassen.com/OhwfCD
Description:
Hybrid 2-3 days onsite in Washington, DC
Our client seeks a senior cybersecurity engineer to deliver NSA CSfC-compliant architectures for secure communications in classified environments. The role drives implementation of Data-at-Rest and Data-in-Transit solutions, SIEM integration, and operational readiness while contributing immediately in a mission-critical setting.
Due to federal security clearance requirements, applicant must be a United States Citizen with an active Top Secret clearance. This is a full-time, permanent opportunity, offering a competitive salary and comprehensive benefits package. Qualified applicants must be willing and able to work on a w2 basis.
Salary: $185,000 - $225,000/ yr. w2
Responsibilities:
Responsibilities
- Design and implement secure communications solutions that comply with NSA Commercial Solutions for Classified standards.
- Implement CSfC capability packages and protection profile requirements using layered commercial products.
- Architect and deploy compliant Data-at-Rest and Data-in-Transit solutions.
- Configure encrypted tunneling, key management, and secure transport mechanisms in classified environments.
- Integrate solutions with SIEM platforms and support security monitoring and incident detection.
- Analyze solution performance and compliance and provide recommendations for improvement.
- Operate in a mission-critical environment with minimal ramp-up and deliver immediate contributions.
- Engage senior government stakeholders to support security architecture decisions.
Experience Requirements:
Experience Requirements
- Active Top-Secret clearance with SCI eligibility.
- Required technical certifications include Security+ and CySA+ or GSEC.
- DoD 8140 certification aligned to the 521 Cyber Defense Infrastructure Support Specialist work role such as Security+, SSCP, CySA+, PenTest+, CASP+, GCIH, CISSP, or GSLC.
- 7+ years of cybersecurity experience with at least 3 years implementing CSfC capability packages.
- Proven experience designing and implementing CSfC-compliant architectures.
- Hands-on experience creating Data-at-Rest and Data-in-Transit architectures using layered commercial products.
- Operational experience with encrypted tunneling, key management, and secure transport in classified environments.
- Experience supporting security monitoring and incident detection with SIEM integration and performance and compliance analysis.
- Ability to contribute immediately in a mission-critical operational environment.
- Advanced cybersecurity certifications such as GCIH, GCIA, or CASP+ (preferred).
- Expert-level certifications such as CISSP (preferred).
- Cloud security certifications such as CCSP, AZ-500, or AWS Security Specialty (preferred).
- Advanced incident response or defensive certifications such as GCED (preferred).
- Experience with endpoint detection and response platforms such as Microsoft Defender or CrowdStrike (preferred).
- Prior experience supporting classified, sensitive, or high-visibility defense or intelligence programs (preferred).
- Experience operating in secure or restricted environments with elevated access controls (preferred).
- Experience interfacing with senior government stakeholders and supporting security architecture decisions (preferred).
- Hands-on experience implementing or operating CSfC-compliant architectures aligned to NSA capability packages (preferred).
Education Requirements:
Education Requirements
- Bachelor’s degree in Cybersecurity, Computer Science, or a related field preferred, or equivalent relevant experience.
- Security+ certification.
- CySA+ or GSEC certification.
- DoD 8140-aligned certifications such as SSCP, PenTest+, CASP+, GCIH, CISSP, or GSLC.
- Preferred certifications may include GCIA, CCSP, AZ-500, AWS Security Specialty, and GCED.
- Active Top-Secret clearance with SCI eligibility.
W2 employees of Eliassen Group who are regularly scheduled to work 30 or more hours per week are eligible for the following benefits: medical (choice of 3 plans), dental, vision, pre-tax accounts, other voluntary benefits including life and disability insurance, 401(k) with match, and sick time if required by law in the worked-in state/locality.
Please be advised- If anyone reaches out to you about an open position connected with Eliassen Group, please confirm that they have an Eliassen.com email address and never provide personal or financial information to anyone who is not clearly associated with Eliassen Group. If you have any indication of fraudulent activity, please contact InfoSec@eliassen.com.
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Eliassen Group is an Equal Opportunity/Affirmative Action Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, pregnancy, sexual orientation, gender identity, national origin, age, protected veteran status, or disability status. Eliassen Group’s Affirmative Action Plan (AAP) is available for inspection by any employee or applicant for employment upon request, during normal business hours of Monday through Friday, 8:30am to 5:30pm EST. Interested persons should contact Phaedra Wells at pwells@eliassen.com for assistance. It is unlawful in Massachusetts and Maryland to require or administer a lie detector test as a condition of employment or continued employment. An employer who violates this law shall be subject to criminal penalties and civil liability.
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