Network Infrastructure Architect

Job Description The Network Infrastructure Architect provides enterprise‑level architecture, design, and technology‑strategy leadership to evolve the Homeland Security Enterprise Network (HSEN) and HQ LAN‑A toward a scalable, interoperable, zero‑trust framework. The role shapes a three‑year technology roadmap, conducts proof‑of‑concepts, and ensures all solutions meet DHS enterprise architecture standards, security accreditation (FISMA/NIST 800‑53), and 99.95 % availability objectives. The objective of the support services for this project is to design, build, and maintain a cloud infrastructure with a focus on network security that supports the organization's technology and business needs. This involves architecting scalable, secure, and highly available cloud solutions, ensuring optimal performance and cost-efficiency in cloud environments such as AWS, Azure, and Google Cloud. The role requires close collaboration with other IT teams, stakeholders, and third-party vendors to deliver cloud-based infrastructure and services that align with organizational goals. Key Tasks & Responsibilities Architecture & Design -Develop HSEN/LAN‑A reference architectures covering WAN/MPLS/SD‑WAN, campus LAN, wireless, TACACS/ISE, firewalls, and cloud on‑ramps. -Produce system design documents, diagrams, IP schemas, and maintain CMDB accuracy. -Model traffic, capacity, and failover scenarios; conduct gap analysis. Technology Strategy & Road‑mapping -Lead evaluations of emerging technologies and vendor offerings; perform COTS/OSS trade studies. -Deliver executive briefings and a rolling three‑year technology roadmap aligned with DHS mission and budget cycles. Security & Compliance -Embed zero‑trust, micro‑segmentation, and IPv6 compliance into all designs. -Support ATO renewals by providing architecture artifacts and POA&M responses. Implementation & Transition Support -Develop test plans, oversee lab validation, and provide Tier‑4 escalation during deployment. -Generate transition documentation for NOSC operations teams and deliver knowledge‑transfer workshops. This Role Provides Task Support for: -Infrastructure Engineering, Development, Implementation, Integration -Enterprise Application Integration -Gap Analysis and Benchmarking -Data Migration and Integration -Acquisition Support -Risk Assessment -Open-Source Integration -Enterprise Data Management -Collaboration Tools -Business Process Reengineering -Test and Evaluation Services -Financial Analysis -Feasibility Studies -Requirements Analysis -System Design Alternative (SDA) Studies -Architecture Validation and Verification Education & Experience Minimum Qualifications (must have): -Master’s degree in Computer Science, Electrical Engineering, or related discipline. -15 + years architecting enterprise WAN/LAN solutions with ≥ 5,500 sites and ≥ 250,000 users. Preferred Qualifications: -10 + years direct support to DHS‑wide networks. -Hands‑on experience with SD‑WAN, cloud connectivity, and automation (Ansible/Python). Certifications Must have an active CCIE (Routing & Switching / Enterprise Infrastructure / Service Provider) certification. Preferred certifications include: AWS Certified Advanced Networking, Juniper JNCIE, TOGAF, or GIAC‑GSEC. Security Clearance U.S. Citizen with ability to obtain DHS Public Trust / Full‑Scope BI. Other (Travel, Work Environment, DoD 8570 Requirements, Administrative Notes, etc.) Location: National Capital Region; occasional travel (≤ 10 %) to remote DHS facilities. Schedule: Standard 40‑hour week with participation in architecture review boards and after‑hours change windows. Telework: Flexible (up to 50 %) based on project phase. Computer World Services is an affirmative action and equal employment opportunity employer. Current employees and/or qualified applicants will receive consideration for employment without regard to race, color, religion, sex, disability, age, sexual orientation, gender identity, national origin, disability, protected veteran status, genetic information or any other characteristic protected by local, state, or federal laws, rules, or regulations. Computer World Services is committed to the full inclusion of all qualified individuals. As part of this commitment, Computer World Services will ensure that individuals with disabilities (IWD) are provided reasonable accommodations. If reasonable accommodation is needed to participate in the job application or interview process, to perform essential job functions, and/or to receive other benefits and privileges of employment, please contact Human Resources at [email protected] .