Principal Enterprise Security Architect (SME)

VulnU; Morrisville (NC); Remote; USD 147,000 - 199,000; Full time

Benefits offered by this job

401K with company match

Comprehensive health and wellness

Paid time off and holidays

Job summary

GDIT seeks a Principal Enterprise Security Architect to bridge USPS CISO leadership with security operations across a hybrid, multi-cloud environment. You will guide threat modeling, architecture roadmaps, and governance, aligning security investments with business needs.

Role emphasizes translating technical risk into business impact, leading design reviews, and advancing SI automation and Zero Trust across federal infrastructure in a remote/hybrid setting.

Qualifications

• Bachelor’s degree in engineering or other IT/security related major, or equivalent experience.
• 10 years’ relevant experience in cybersecurity/infrastructure with 5 years in architecture role.
• Experience across PKI, NDR, NGFW, WAAP, EDR/XDR, SIEM, DNS security, proxies and data center design.

Responsibilities

• Lead enterprise security architecture roadmap aligned with CISO goals and business needs.
• Translate deep technical risks into clear business-risk metrics.
• Direct threat modeling, design reviews, and remediation sessions across security teams and external partners.
• Drive governance, policy development, and SI automation across hybrid multi-cloud environments.

Skills

Security Architecture

Threat modeling

Cloud security

SIEM

Zero Trust

CISO liaison

Education

Bachelor’s degree in engineering or IT/security related major

Tools

Microsoft Azure

GCP

AWS

Splunk

Job description

Job Description:Advance your career while impacting our national security as a Principal Enterprise Security Architect (SME). Here, technologists have many paths to grow a meaningful career supporting cyber missions and operations across the federal government. MEANINGFUL WORK AND PERSONAL IMPACTWe are seeking a visionary Principal Enterprise Security Architect to serve as the strategic and technical bridge between USPS security operations and CISO leadership, and enterprise infrastructure. Operating within the USPS Corporate Information Security Office (CISO), you will collaborate directly with internal and external stakeholders to align corporate initiatives with robust cyber defense strategies. The primary focus of this role is to ensure the preservation and continuous enhancement of USPS’ security posture throughout their continuing infrastructure evolution process and into the ultimate architectural end-state. You will identify structural security gaps across USPS hybrid environment, comprising multiple physical data centers and multi-cloud environments, engineering resilient solutions to mitigate them, while using SI and LLM. WHAT YOU’LL NEED TO SUCCEEDEducation:Education: Bachelor’s degree in engineering or other IT/security related major; or equivalent experienceNOTE: If resources do not have a relevant college degree, an additional 4 years of relevant work experience is required.Required Certifications:CCIECISSPDesired Training: Microsoft AzureGCPAWS Fundamentals/AssociateSplunkx-AI FundamentalsRequired Experience:10 years’ relevant experience15 years with strong experience with Edge and Perimeter Protection solutions and designs - IDS/IPS, WAF/WAAP, SDWAN remote security10 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 designsAct as the primary security architecture advisor to USPS CISO ENG, translating deep technical risks and structural vulnerabilities into clear business-risk metrics.Lead collaborative design, threat modeling, and remediation sessions across the CISO 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 CISO 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.Establish and enforce governance and security policies in the infrastructure.Manage and/or advise on planning and operation of all CISO Engineering Security Edge workstreams.Conduct rigorous, proactive architectural reviews of the global hybrid footprint to identify structural weaknesses through continuous monitoring.Strong experience with SASE/SSE Convergence – SDWAN, (CASB), Secure Web Gateways (SWG), and Zero Trust Network Access (ZTNA).Strong experience with Network service security and infrastructure – DNS security, PKI and CAOps, ProxyStrong 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)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 processesExperience with security Incident response activities.Understanding AI application development methodologySecurity Clearance Level:Ability to obtain and maintain a Public Trust clearance and successfully pass a thorough Government background screening process requiring the completion of detailed forms and fingerprinting.This position has a U.S. residency requirement. The USPS security clearance process requires the selected candidate to have resided in the U.S. (including U.S. Territories) for the last five years as follows:U.S. Citizens cannot have left the U.S. (including U.S. Territories) for longer than 6 months consecutively in the last 3 years (unless they meet certain exceptions).Non-U.S. Citizens cannot have left the U.S. (including U.S. Territories) for longer than 90 days consecutively in the last 3 years.Location:RemoteMorrisville, NCFalls Church, VAEagan, MN GDIT IS YOUR PLACE:401K with company matchComprehensive health and wellness packagesInternal mobility team dedicated to helping you own your careerProfessional growth opportunities including paid education and certificationsCutting-edge technology you can learn fromRest and recharge with paid vacation and holidays #zxc726The likely salary range for this position is $147,292 - $199,278. This is not, however, a guarantee of compensation or salary. Rather, salary will be set based on experience, geographic location and possibly contractual requirements and could fall outside of this range.Scheduled Weekly Hours:40Travel Required:Less than 10%Telecommuting Options:RemoteWork Location:Any Location / RemoteAdditional Work Locations:Total Rewards at GDIT:Our benefits package for all US-based employees includes a variety of medical plan options, some with Health Savings Accounts, dental plan options, a vision plan, and a 401(k) plan offering the ability to contribute both pre and post-tax dollars up to the IRS annual limits and receive a company match. To encourage work/life balance, GDIT offers employees full flex work weeks where possible and a variety of paid time off plans, including vacation, sick and personal time, holidays, paid parental, military, bereavement and jury duty leave. GDIT typically provides new employees with 15 days of paid leave per calendar year to be used for vacations, personal business, and illness and an additional 10 paid holidays per year. Paid leave and paid holidays are prorated based on the employee’s date of hire. The GDIT Paid Family Leave program provides a total of up to 160 hours of paid leave in a rolling 12 month period for eligible employees. To ensure our employees are able to protect their income, other offerings such as short and long-term disability benefits, life, accidental death and dismemberment, personal accident, critical illness and business travel and accident insurance are provided or available. We regularly review our Total Rewards package to ensure our offerings are competitive and reflect what our employees have told us they value most.