Infrastructure Specialist (San Diego, CA)

Primary Responsibilities

Lead the architecture, design, implementation, and ongoing support of infrastructure solutions across multiple concurrent client projects
Design, deploy, and troubleshoot routed and switched network environments for enterprise, industrial, and critical infrastructure systems
Perform advanced troubleshooting across routing, switching, firewall, wireless, LTE/cellular, cloud, remote access, and general infrastructure connectivity issues
Support infrastructure modernization, upgrades, expansions, migrations, and cutovers with a focus on reliability, maintainability, and operational continuity
Build and maintain standardized configurations, templates, and support processes to improve consistency across projects and client environments
Collaborate with internal team members, project managers, cybersecurity personnel, field teams, and client stakeholders to deliver high-quality technical outcomes
Support environments requiring resilient and secure communications, including high-availability designs, WAN connectivity, VPNs, and remote site connectivity
Support LAN, WAN, and wireless infrastructure design, implementation, and troubleshooting
Support Azure and/or AWS infrastructure and networking environments
Develop network designs including IP addressing schemes, segmentation strategies, and resilient architecture patterns
Develop and maintain technical documentation, including logical and physical network diagrams, Visio drawings, implementation plans, cut sheets, and as-built documentation

Required Skills

• Bachelor’s degree in Engineering, Computer, Information Technology, or related field.
• Minimum of seven (7) years of technical experience, or an equivalent combination of relevant education, certifications, and hands-on technical experience
• Advanced knowledge of routing protocols including BGP, OSPF, HSRP, and VRRP
• Proficiency in switching technologies including VLANs, STP, RSTP, RPVST+, and VPC
• Strong understanding of IPsec, VPN, and secure remote access technologies
• Experience with LTE/cellular connectivity solutions
• Strong packet analysis and troubleshooting capability using packet captures, routing validation, and protocol-level diagnostics
• Strong technical documentation and diagramming skills, including Microsoft Visio
• Ability to manage and prioritize work across multiple active projects and support efforts
• Effective communication skills for both technical teams and clients
• Strong ownership, follow-through, and attention to detail

Preferred Skills

• Experience in IT, OT, industrial, utility, power, or critical infrastructure environments
• Experience with VMware, virtual networking, or virtualized infrastructure environments
• Experience with Azure and/or AWS networking
• Experience supporting multiple concurrent projects in a consulting, systems integration, or client-facing services environment
• Cybersecurity experience, especially in segmentation, secure access design, firewall policy support, and infrastructure hardening
• CISSP certification is a plus

Requirements

• Must have a valid driver’s license and be authorized to work in the United States
• Subject to a background check, as well as drug and alcohol testing, per applicable federal regulations

Salary Range

$130,000 - $160,000 (Based on experience)

Benefits

• 401(k) and Roth 401(k)
• Dental Insurance
• Health Insurance
• Life Insurance
• Vision Insurance
• Employee Stock Purchase Plan (ESPP)
• Paid time off
• Performance Bonus
• Career Growth Opportunities and Training

WHY TETRA TECH

In addition to rewarding job opportunities and continuous growth, we offer an enjoyable working environment, where teamwork and respectful collaboration is highly valued. We offer the benefits of a midsized local office atmosphere backed by a large network of highly skilled professionals.