Senior Site Infrastructure Engineer (R5857)

Shield AI is a venture-backed defense-tech company with the mission of protecting service members and civilians with intelligent systems. Its products include Hivemind autonomy software, V-BAT and X-BAT aircraft, and Aechelon simulation and synthetic reality technologies. With offices and facilities across the U.S., Europe, the Middle East, and Asia-Pacific, Shield AI’s technology actively supports operations worldwide. For more information, visit www.shield.ai. Follow Shield AI on LinkedIn, X, Instagram, and YouTube. 

Job Description: Shield AI is seeking a Senior Site Infrastructure Engineer to plan, design, document, and support physical IT infrastructure across offices, engineering facilities, labs, manufacturing environments, and data centers.

As part of the Cloud & Infrastructure team within Enterprise Operations, this role will help deliver scalable and reliable site infrastructure, including rack layouts, structured cabling, power and cooling capacity, MDF/IDF design, DCIM, equipment sizing, and infrastructure documentation. You will partner closely with Network, Systems, Cloud, Security, Facilities, Workplace, and external vendors to support new site buildouts, expansions, relocations, and data center deployments.

What you'll do:

* Plan and design physical IT infrastructure for offices, labs, manufacturing facilities, and data centers. * Lead and support new site buildouts, office expansions and relocations, data center deployments, hardware refreshes, and infrastructure moves. * Develop rack layouts, MDF/IDF requirements, equipment placement plans, and infrastructure bills of materials. * Create and maintain accurate rack elevations, physical connectivity diagrams, equipment records, cable documentation, and DCIM data across office and data center environments. * Support capacity planning across rack space, site and data center power, cooling, cabling, and equipment growth. * Administer and improve DCIM/IPAM/CMDB platforms such as Nautobot, NetBox, Device42, or equivalent. * Establish and maintain physical infrastructure documentation and labeling standards to ensure environments remain accurately documented throughout their lifecycle. * Review floor plans, low-voltage drawings, vendor designs, proposals, and statements of work.

* Manage site and data center circuit inventory and lifecycle planning, including circuit documentation, utilization and capacity planning, renewal tracking, upgrades, relocations, disconnects, and coordination with carriers and internal procurement teams.

* Coordinate with architects, contractors, colocation providers, carriers, OEMs, and field-service vendors. * Partner with Network, Systems, and Cloud Engineering teams to ensure site and data center infrastructure supports compute, storage, connectivity, wireless, security, hybrid connectivity, and public cloud requirements. * Identify capacity constraints, documentation gaps, and opportunities to improve infrastructure standards and processes. * Provide technical guidance to junior engineers and support teams as needed.

Required Qualifications:

* 5+ years of experience in data center, enterprise site, or physical IT infrastructure engineering. * Experience designing and supporting infrastructure across offices, data centers, labs, or similar enterprise environments. * Strong experience creating and maintaining rack elevations, physical infrastructure diagrams, cabling documentation, equipment layouts, and infrastructure records. * Strong knowledge of rack design, structured copper/fiber cabling, equipment placement, and physical infrastructure standards. * Strong working knowledge of data center and site power, including A/B power, UPS/PDU systems, circuit capacity, equipment power draw, redundancy, and related cooling/airflow considerations. * Experience designing MDF/IDF environments and sizing infrastructure for new or expanding facilities. * Experience with DCIM/IPAM/CMDB platforms such as Nautobot, NetBox, Device42, Sunbir …