Senior Security Engineer

Job Family:

Travel Required:

Clearance Required:

What You Will Do:

Guidehouses Cybersecurity practice partners with federal and regulated commercial clients to design engineer and operate modern security capabilities that enable mission success in an evolving threat landscape. Our teams blend deep technical expertise with consulting leadership to deliver security modernization programs that are resilient scalable and aligned to enterprise objectives.

As a Senior Security Engineer you will lead enterprise security modernization initiatives define Zero Trustaligned architectures consistent with NIST SP 800207 and serve as technical authority for complex security control deployments. This is a handson leadership role for a senior engineer who can translate strategy into executable designs guide multidisciplinary delivery teams and ensure security capabilities are implemented correctly and operate effectively across the enterprise.

This role positions you as a senior technical leader within Guidehouses Cybersecurity practice accountable for shaping and delivering Zero Trustaligned security modernization solutions that strengthen enterprise resilience and reduce risk.

Key Responsibilities

• Lead enterprise security engineering and modernization initiatives from architecture and design through implementation testing and operational transition.
• Define and maintain Zero Trustaligned reference architectures and roadmaps across identity device network/environment application/workload and data pillars in alignment with NIST SP 800207.
• Serve as the technical authority for complex security control deployments approving implementation patterns resolving crossdomain 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 80053; 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 executivelevel briefs.
• Support business development activities through technical solutioning proposal contributions and client presentations.

What You Will 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.
• Bachelors 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 Trustaligned architectures with working knowledge of NIST SP 800207 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.

What Would Be Nice to Have:

• Experience implementing Zero Trust capabilities in federal environments aligned to the CISA Zero Trust Maturity Model or agency Zero Trust strategies.
• Experience with leading security platforms across IAM ZTNA/SSE EDR/XDR and SIEM/SOAR ecosystems.
• Familiarity with cloud security architectures and hybrid enterprise environments.
• Additional certifications such as CCSP CISM GIAC or cloud provider security credentials.
• Prior consulting experience with responsibility for delivery leadership and client engagement.

What We Offer:

Guidehouse offers a comprehensive total rewards package that includes competitive compensation and a flexible benefits package that reflects our commitment to creating a diverse and supportive workplace.

Benefits include:

• 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

About Guidehouse

Guidehouse is an Equal Opportunity EmployerProtected Veterans Individuals with Disabilities or any other basis protected by law ordinance or regulation.

Guidehouse will consider for employment qualified applicants with criminal histories in a manner consistent with the requirements of applicable law or ordinance including the Fair Chance Ordinance of Los Angeles and San Francisco.

If you have visited our website for information about employment opportunities or to apply for a position and you require an accommodation please contact Guidehouse Recruiting at 1- or via email at . All information you provide will be kept confidential and will be used only to the extent required to provide needed reasonable accommodation.

All communication regarding recruitment for a Guidehouse position will be sent from Guidehouse email domains including @ or . Correspondence received by an applicant from any other domain should be considered unauthorized and will not be honored by Guidehouse. Note that Guidehouse will never charge a fee or require a money transfer at any stage of the recruitment process and does not collect fees from educational institutions for participation in a recruitment event. Never provide your banking information to a third party purporting to need that information to proceed in the hiring process.

If any person or organization demands money related to a job opportunity with Guidehouse please report the matter to Guidehouses Ethics Hotline. If you want to check the validity of correspondence you have received please contact . Guidehouse is not responsible for losses incurred (monetary or otherwise) from an applicants dealings with unauthorized third parties.

Guidehouse does not accept unsolicited resumes through or from search firms or staffing agencies. All unsolicited resumes will be considered the property of Guidehouse and Guidehouse will not be obligated to pay a placement fee.