Senior Security Engineer

Guidehouse

Senior Security Engineer leading enterprise security modernization initiatives at Guidehouse. Guiding teams in designing Zero Trust architectures and implementing complex security solutions.

Posted 5/19/2026full-timeRemote • Washington • 🇺🇸 United StatesSenior💰 $149,000 - $248,000 per yearWebsite

Tech Stack

Tools & technologies

CloudCyber Security

About the role

Key responsibilities & impact

Lead enterprise security engineering and modernization initiatives, from architecture and design through implementation, testing, and operational transition.
Define and maintain Zero Trust–aligned reference architectures and roadmaps across identity, device, network/environment, application/workload, and data pillars in alignment with NIST SP 800‑207.
Serve as the technical authority for complex security control deployments, approving implementation patterns, resolving cross‑domain design issues, and ensuring solutions meet enterprise security, scalability, and operational requirements.
Translate mission and business requirements into secure, implementable technical designs and detailed engineering requirements.
Engineer and modernize identity and access management (IAM/ICAM) capabilities, including MFA, SSO, identity lifecycle governance, conditional access, and privileged access management.
Design and implement endpoint and device security controls, integrating telemetry into centralized monitoring and response capabilities.
Lead design and deployment of Zero Trust network capabilities, including segmentation, secure access/ZTNA, and policy enforcement integrated with identity and device posture.
Oversee security monitoring and response modernization, including integration with SIEM/SOAR, detection engineering strategies, and automation to improve operational effectiveness.
Map security controls to architectures and implementations aligned to frameworks such as NIST SP 800‑53; ensure solutions generate defensible evidence for compliance and audit purposes.
Establish technical governance and engineering standards, including design reviews, guardrails, and architecture decision records.
Mentor and coach engineers and consultants; conduct peer reviews and reinforce technical quality and delivery excellence.
Develop and deliver clear technical documentation, including architecture diagrams, implementation plans, and executive‑level briefs.
Support business development activities through technical solutioning, proposal contributions, and client presentations.

Requirements

What you’ll need

Must be able to OBTAIN and MAINTAIN a Federal or DoD "PUBLIC TRUST"; candidates must obtain approved adjudication of their PUBLIC TRUST prior to onboarding with Guidehouse.
Candidates with an ACTIVE PUBLIC TRUST or SUITABILITY and maintain an active HHS/NIH clearance are preferred.
Bachelor’s degree in Cybersecurity, Information Systems, Computer Science, or a related field (additional relevant experience may substitute for formal education).
Minimum of NINE (9) years of progressively responsible experience in security engineering, cybersecurity architecture, or enterprise security modernization.
Required certifications: CompTIA Security+ (active), Certified Information Systems Security Professional (CISSP) (active)
Demonstrated experience designing and delivering Zero Trust–aligned architectures, with working knowledge of NIST SP 800‑207 principles.
Proven experience acting as a technical lead or authority across multiple security domains (identity, endpoint, network, cloud, and monitoring).
Strong understanding of security frameworks, governance, and compliance practices within enterprise or federal environments.
Excellent written and verbal communication skills, including the ability to brief technical and executive stakeholders.

Benefits

Comp & perks

Medical, Rx, Dental & Vision Insurance
Personal and Family Sick Time & Company Paid Holidays
Position may be eligible for a discretionary variable incentive bonus
Parental Leave and Adoption Assistance
401(k) Retirement Plan
Basic Life & Supplemental Life
Health Savings Account, Dental/Vision & Dependent Care Flexible Spending Accounts
Short-Term & Long-Term Disability
Student Loan PayDown
Tuition Reimbursement, Personal Development & Learning Opportunities
Skills Development & Certifications
Employee Referral Program
Corporate Sponsored Events & Community Outreach
Emergency Back-Up Childcare Program
Mobility Stipend

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools

security engineeringcybersecurity architectureidentity and access managementmulti-factor authenticationsingle sign-onendpoint securityZero Trust network capabilitiessecurity monitoringdetection engineeringtechnical documentation

Soft Skills

leadershipmentoringcommunicationtechnical authorityproblem-solvingcollaborationcoachingpresentation skillsorganizational skillspeer review

Certifications

CompTIA Security+Certified Information Systems Security Professional