Senior Network and Infrastructure Engineer

AST & Science LLC

San Diego, CA

JOB DETAILS
SKILLS
Amazon Web Services (AWS), BGP Routing Protocol, Best Practices, Budgeting, CCNP - Cisco Certified Network Professional, CentOS, Cisco Network Systems, Cisco Routers, Cisco Unified Computing System (UCS), Cloud Computing, Communication Skills, Computer Engineering, Computer Firmware, Computer Hardware, Computer Networks, Computer Science, Dell Computers, Detail Oriented, Disaster Recovery, Documentation, Environmental Monitoring, Facilities Management, Firewalls, Hardware Administration, Hardware Configuration Management, Hardware Virtualization, High Availability, Identify Issues, Interpersonal Skills, Inventory Management, K Virtual Machine (KVM), Laboratory Testing, Lift/Move 50 Pounds, Link Aggregation Control Protocol (LACP), Linux Operating System, Microsoft Windows Operating System, Microsoft Windows Server, Microsoft Windows System Administration, Multitasking, Network Administration/Management, Network Architecture/Engineering, Network Operations Center, Network Performance/Analysis, Network Routers, Network Routing, Network Scalability, Network Switching, Open Shortest Path First Protocol (OSPF), Operating Systems, Operations Processes, Physical Demands, Physical Inventory, Physical Security, Presentation/Verbal Skills, Process Improvement, Production Support, Reliability Engineering, Server Hardware, Standard Operating Procedures (SOP), Support Documentation, Systems Administration/Management, Team Player, Telemetry, Ubuntu, VLAN (Virtual Local Area Network), VMWare, VMWare ESX/ESXi, VMWare vSphere, VPN (Virtual Private Network), Willing to Travel, Writing Skills
LOCATION
San Diego, CA
POSTED
30+ days ago

Position Overview

We are seeking a Senior Network and Infrastructure Engineer to build, maintain, and optimize the physical network and compute layer of our on‑premises environments. This role ensures the reliability, performance, and scalability of networks, firewalls, server hardware, racks, power, cabling, and related physical systems that support global production, lab, and test workloads. The ideal candidate brings deep hands‑on experience with datacenter operations, Cisco networking, physical compute hardware, and infrastructure best practices.

Key Responsibilities

Physical Compute & Hardware Management

Deploy, install, rack, cable, and power physical servers, storage systems, and supporting hardware. Perform hardware diagnostics, break/fix tasks, component replacement, and lifecycle upgrades. Manage firmware, BIOS, and device‑level updates to ensure reliability and security. Maintain accurate inventory of physical compute assets, spares, and components.

Datacenter Operations

Design, deploy, and manage enterprise network infrastructure using Cisco technologies (routers, switches, firewalls, VPNs). Architect and implement AWS networking solutions (VPCs, Transit Gateway, Direct Connect, Route 53, security groups). Ensure proper airflow, rack layout, cable management, power distribution, and space planning. Coordinate with facilities for cooling, power budgeting, and physical security requirements. Perform routine datacenter health checks, environmental monitoring, and audits. Provide remote‑hands support for global sites as required.

Systems & Infrastructure Support

Provision bare‑metal hosts and integrate hardware into virtualization or orchestration platforms. Collaborate with SRE, cloud, networking, and platform teams to support high‑availability workloads. Troubleshoot hardware and OS-level issues (Linux/Windows) during physical interventions. Documentation & Process

Maintain rack elevation diagrams, cabling maps, and hardware configuration records. Develop and maintain SOPs for installation, decommissioning, maintenance, and emergency recovery. Drive improvements in reliability, performance, physical infrastructure efficiency, and operational standards.

Qualifications

Education

Bachelor's degree in Computer Science, Engineering, or a related technical field (or higher).

Experience

A minimum of 7+ years in datacenter operations, physical compute engineering, or server hardware roles. Expert‑level experience with Cisco networking technologies (CCNP or higher preferred). Proven experience with AWS networking and cloud‑native networking architectures. Strong hands‑on experience with racking/stacking servers, cabling, hardware diagnostics, and physical maintenance. Knowledge of enterprise server platforms (Cisco, Dell, HPE, Supermicro). Familiarity with Linux or Windows for basic troubleshooting. Strong understanding of networking fundamentals (VLANs, LACP, routing, switching). Ability to lift ~50 lbs and work in hot/cold aisle environments.

Preferred Qualifications

Experience with virtualization platforms (VMware, Proxmox, KVM) or bare‑metal orchestration tools (MAAS, Tinkerbell). Experience with hardware monitoring, observability, or datacenter telemetry systems. Knowledge of datacenter best practices including power planning, cooling optimization, and structured cable management.

Soft Skills

Strong interpersonal skills and ability to collaborate effectively within cross‑functional teams. Excellent written and verbal communication skills. Meticulous attention to detail in documentation, configuration, and operational processes. Strong problem‑solving and root‑cause analysis skills. Ability to manage multiple priorities and work independently. Proven ability to work efficiently in fast‑paced and physically demanding environments.

Technology Stack

Networking: Cisco routers, switches, firewalls, VPNs; routing protocols (BGP, OSPF). Cloud networking: AWS VPC, Transit Gateway, Direct Connect, Route 53, security groups. Hardware/Compute: Dell, Cisco UCS, HPE, Supermicro server platforms. Virtualization: VMware vSphere/ESXi, Proxmox, KVM. OS: Linux (Ubuntu, CentOS), Windows Server (basic troubleshooting). Tools: Monitoring/observability tools such as Prometheus, Grafana, OpenObserve.

Physical Requirements

Ability to work in a standard datacenter environment, including hot and cold aisles. Ability to lift and move up to ~50 lbs of equipment. Ability to use a computer for extended periods to support documentation, troubleshooting, and operational tasks. Ability to travel or support remote sites as needed.

This job description may not be inclusive to the duties and responsibilities listed. Additional tasks may be assigned to the employee from time to time or the scope of the job may change as needed by business demands.

About the Company

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AST & Science LLC