Infrastructure Specialist (San Diego, CA)

We are seeking a Senior Infrastructure Specialist to support the design, implementation, troubleshooting, and support of enterprise and industrial infrastructure environments across multiple client projects.This is a senior-level technical role for someone who can operate independently in a fast-paced professional services environment and contribute across architecture, technical design, implementation, documentation, and advanced troubleshooting. The role is heavily focused on network and infrastructure systems that support operational technology and critical infrastructure environments, including data centers, industrial facilities, utility-related systems, and remote connectivity.Primary ResponsibilitiesLead the architecture, design, implementation, and ongoing support of infrastructure solutions across multiple concurrent client projectsDesign, deploy, and troubleshoot routed and switched network environments for enterprise, industrial, and critical infrastructure systemsPerform advanced troubleshooting across routing, switching, firewall, wireless, LTE/cellular, cloud, remote access, and general infrastructure connectivity issuesSupport infrastructure modernization, upgrades, expansions, migrations, and cutovers with a focus on reliability, maintainability, and operational continuityBuild and maintain standardized configurations, templates, and support processes to improve consistency across projects and client environmentsCollaborate with internal team members, project managers, cybersecurity personnel, field teams, and client stakeholders to deliver high-quality technical outcomesSupport environments requiring resilient and secure communications, including high-availability designs, WAN connectivity, VPNs, and remote site connectivitySupport LAN, WAN, and wireless infrastructure design, implementation, and troubleshootingSupport Azure and/or AWS infrastructure and networking environmentsDevelop network designs including IP addressing schemes, segmentation strategies, and resilient architecture patternsDevelop and maintain technical documentation, including logical and physical network diagrams, Visio drawings, implementation plans, cut sheets, and as-built documentationRequired SkillsBachelor'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 experienceAdvanced knowledge of routing protocols including BGP, OSPF, HSRP, and VRRPProficiency in switching technologies including VLANs, STP, RSTP, RPVST+, and VPCStrong understanding of IPsec, VPN, and secure remote access technologiesExperience with LTE/cellular connectivity solutionsStrong packet analysis and troubleshooting capability using packet captures, routing validation, and protocol-level diagnosticsStrong technical documentation and diagramming skills, including Microsoft VisioAbility to manage and prioritize work across multiple active projects and support effortsEffective communication skills for both technical teams and clientsStrong ownership, follow-through, and attention to detailPreferred SkillsExperience in IT, OT, industrial, utility, power, or critical infrastructure environmentsExperience with VMware, virtual networking, or virtualized infrastructure environmentsExperience with Azure and/or AWS networkingExperience supporting multiple concurrent projects in a consulting, systems integration, or client-facing services environmentCybersecurity experience, especially in segmentation, secure access design, firewall policy support, and infrastructure hardeningCISSP certification is a plusRequirementsMust have a valid driver's license and be authorized to work in the United StatesSubject to a background check, as well as drug and alcohol testing, per applicable federal regulations.Salary Range$130,000 - $160,000 (Based on experience)Benefits401(k) and Roth 401(k)Dental InsuranceHealth InsuranceLife InsuranceVision InsuranceEmployee Stock Purchase Plan (ESPP)Paid time offPerformance BonusCareer Growth Opportunities and TrainingEqual Opportunity EmployerTetra Tech is proud to be an Equal Opportunity Employer. All qualified candidates will be considered without regard to race, color, religion, national origin, military or veteran status, gender, age, disabilities, pregnancy and pregnancy-related conditions, genetic information and any other characteristics protected by the law. We invite resumes from all interested parties.J-18808-Ljbffr