Senior Enterprise Security Architect (Cyber Protection)

phia is hiring a Senior Enterprise Security Architect to support cyber protection architecture, engineering, and operations at a large Federal agency. This role focuses on providing strategic technical and operational expertise and insights to support leadership vision, planning, and implementation. The ideal candidate will have deep experience with enterprise infrastructure/network technologies and security architecture.

This position offers REMOTE work flexibility. Qualified candidates will be U.S. Citizens and located in the United States, able to achieve Public Trust security vetting approval.

What You’ll Do:

• Act as the primary security architecture advisor to agency infrastructure security leadership, translating deep technical risks and structural vulnerabilities into clear business-risk metrics.
• Lead collaborative design, threat modeling, and remediation sessions across the office, Network Engineering teams, Endpoint Management teams, and external vendor/partner organizations.
• Formulate and author Enterprise Security Architecture roadmap, ensuring the security solution/technology investments align with department goals and business needs, in the areas of edge/network defense, cloud security, transport security, endpoint protection, and certificate lifecycle management. Using skillset along with vendor products to continue moving the enterprise security towards SI automation.
• Collaborate directly with internal and external stakeholders to align corporate initiatives with robust cyber defense strategies.
• Ensure the preservation and continuous enhancement of agency security posture throughout continuing infrastructure evolution and into the ultimate architectural end-state.
• Identify structural security gaps across our hybrid environment, comprising multiple physical data centers and multi-cloud environments, engineering resilient solutions to mitigate them, while using SI and LLM.
• Establish and enforce governance and security policies in the infrastructure.
• Manage and/or advise on planning and operation of all agency engineering security edge workstreams.
• Conduct rigorous, proactive architectural reviews of the global hybrid footprint to identify structural weaknesses through continuous monitoring.
• Provide status and activity reporting and plans to management.

• Strong experience with SASE/SSE Convergence - SDWAN, (CASB), Secure Web Gateways (SWG), and Zero Trust Network Access (ZTNA).
• 15+ years with strong experience with Edge and Perimeter Protection solutions and designs - IDS/IPS, WAF/WAAP, SDWAN remote security
• Strong experience with Network service security and infrastructure - DNS security, PKI and CAOps, Proxy
• Strong understanding of Zero Trust tenets and principles, and practical application of the principles.
• In-depth understanding of Security Framework Alignment: Map all infrastructure patterns to prevailing industry standards and best practices, specifically NIST CSF / SP 800-53 and the CIS Critical Security Controls.
• In-depth understanding of hybrid large scale enterprise: Strong history of assessing and securing complex enterprise environments spanning multiple physical data centers and comprehensive multi-cloud environments from various cloud service providers. (AWS, GCP, Azure)
• 10+ years of progressive experience in cybersecurity and infrastructure, with 5+ years in a dedicated architecture role directly influencing architectural decisions and priority.
• 15+ years with hands-on architectural experience across the entire technical scope: PKI, NDR, NGFW, WAAP, EDR/XDR, and SIEM), IDS/IPS, DNS Protection, Proxy, Webproxy, PAC, Loadbalancer, IP routing, Data Center designs
• Experience with development and application of governance policy and standards in application of security tools, and Security Governance process/workstream management, while working to leverage SI to automate processes
• Experience with security Incident response activities.
• Understanding AI application development methodology Ability to work independently, work in a fast-paced environment, and attention to detail
• Excellent communication, organizational, and interpersonal skills

Required Education + Experience:

• 15+ years of experience in enterprise security architecture, cybersecurity engineering and IT operations.

Required Certifications (desired, or similar):

• Cisco Certified Internetwork Expert (CCIE)
• Certified Information Systems Security Professional (CISSP)

Desired Additional Certification Areas:

• Cloud Platforms: Microsoft Azure, GCP, AWS
• Artificial Intelligence (AI) Platforms, Technologies and Concepts

Security Clearance/Vetting:

• U.S. Citizenship required
• Ability to obtain Public Trust clearance

medical insurance, dental insurance, life insurance, vision insurance, paid time off, paid holidays, long term disability, 401(k), remote work, phia offers excellent benefits to enhance work-life balance, including the following:

• Medical Insurance
• Dental Insurance
• Vision Insurance
• Life Insurance
• Short Term & Long Term Disability
• 401k Retirement Savings Plan with Company Match
• Paid Holidays
• Paid Time Off (PTO)
• Tuition and Professional Development Assistance

phia LLC (“phia”) is a Northern Virginia based, small business established in 2011 with focus in Cyber Intelligence, Cyber Security/Defense, Intrusion Analysis & Incident Response, Cyber Architecture & Capability Analysis, Cyber Policy & Strategy, Information Assurance/Security, Compliance, Certification & Accreditation, Communications Security, Traditional Security, and Facilities Security. phia also provides cyber operations support functions such as: Program and Process Management, Engineering, Development, and Systems Administration that allows for Cyber Operations to efficiently integrate our customer’s missions and objectives. phia supports various agencies and offices within the Department of Defense (DoD), Federal government, and private/commercial entities.