Senior Infrastructure Engineer (TS/SCI w/ Poly)

About the role

JTEC Consulting LLC focuses on successfully delivering solutions to meet our clients’ most critical needs. Our founding members have decades of experience delivering a wide range of solutions to Air Force and DoD clients. We are a Veteran-Owned Small Business dedicated to bridging complex operational challenges with modern data solutions. Security Clearance: Current TS/SCI with polygraph. Location Note: 100% On‑Site. Relocation support for candidates outside the commuting area will be considered. JTEC Consulting is seeking a highly skilled and motivated Senior Infrastructure Engineer to join a dynamic, fast‑paced environment to manage, optimize, and maintain critical data center infrastructure for mission‑critical operations. As an Infrastructure Engineer, you will be responsible for end‑to‑end data center operations, ensuring high availability, performance, and scalability across enterprise server, network, and storage systems. Qualified candidates will have demonstrated experience in leading hands‑on deployments, overseeing rack installations, managing copper and fiber interconnects, and optimizing power and cooling capacity. A current security clearance with agency‑specific polygraph is strictly required for consideration.

Responsibilities

• Configure, provision, and maintain enterprise Cisco switching and firewall equipment to ensure reliable network performance and security posture
• Deploy, manage, and troubleshoot HPE and Dell server hardware across diverse operational workloads
• Oversee physical rack installations, hardware lifecycle refreshes, component replacements, and preventative maintenance schedules
• Author and maintain comprehensive, auditable architectural documentation, rack elevations, and physical/logical network topologies using Microsoft Visio or DrawIO
• Develop Standard Operating Procedures (SOPs), maintenance runbooks, and inventory asset tracking records for all data center assets
• Model, monitor, and optimize power allocation (kW/rack density, PDU phase balancing, UPS loading) and cooling airflow (hot/cold aisle containment, CFM distribution)
• Perform proactive capacity planning to forecast rack space, power distribution, and thermal margins for incoming hardware expansions
• Design and implement structured cabling architectures (single-mode/multi-mode fiber and Cat6/6A copper) following industry standards (TIA/EIA, BICSI)
• Ensure proper cable routing, labeling, patch panel termination, and port mapping across server racks, patch fields, and core distribution frames
• Administer high-performance storage platforms, including Dell, HPE, and PureStorage Network Attached Storage (NAS) and associated SAN fabrics
• Monitor storage utilization, performance tiers, and latency metrics to ensure high availability, data integrity, and disaster recovery readiness

Requirements

• U.S. citizenship
• Current TS/SCI with agency-specific polygraph required for consideration
• Bachelor’s degree in Computer Science, Information Systems, or a related technical discipline (equivalent years of direct experience considered in lieu of a degree)
• 10+ years of infrastructure engineering experience with advanced architectural design of scalable, distributed systems
• 5+ years of experience with hands-on technical responsibility operating within mission-critical enterprise or colocation data center environments
• Effective written and verbal communication skills to work as part of a collaborative, cross-functional team

Qualifications

• Demonstrated expertise in deploying, configuring, and maintaining enterprise-grade HPE and Dell server hardware
• Proven ability to configure and troubleshoot Cisco switches, routers, and firewalls
• Direct administrative experience with enterprise storage solutions, specifically Dell, HPE, and PureStorage NAS/SAN arrays
• Strong understanding of data center environmental dynamics, including power distribution units (PDUs), circuit requirements, and HVAC/cooling capacity calculations
• Practical proficiency with structured fiber optic (LC, MPO) and copper patching, testing, and cable plant management
• Proficiency in generating detailed rack layouts, port-to-port mappings, and network diagrams utilizing Visio, DrawIO, or equivalent tools

Skills

• Industry certifications such as