Senior Data Center Network Engineer

****** W2 Contract only, we can not do C2C for this role ****** 5 Days a week ONSITE PLEASE DO NOT APPLY IF YOU ARE NOT LOCAL TO CALIFORNIA Thank you! Client is seeking a hands‑on, enterprise-level Senior Network Engineer to lead the design, implementation, and operational support of network infrastructure, including new lab environment buildouts. This is a highly technical, individual contributor role that serves as the subject matter expert for network architecture, routing & switching, security integration, and infrastructure lifecycle management. The ideal candidate must have deep expertise in Juniper networking (routing, switching, and cabling) , strong experience with Palo Alto firewalls , and working knowledge of Meraki (particularly for IoT device management) . This role requires daily onsite presence in San Carlos, CA or Austin, TX. Key Responsibilities Network Architecture & Engineering Lead enterprise-wide network architecture, design, implementation, and operations. Design and deploy new lab network environments. Lead all aspects of routing & switching design, architecture, and equipment lifecycle management. Provide technical evaluation of emerging network technologies and recommend improvements. Design and implement network improvements to enhance performance, capacity, and scalability. Develop and maintain detailed network diagrams and documentation. Infrastructure & Security Install and configure networking hardware including LAN switches, Wi‑Fi infrastructure, and firewalls. Configure and manage Juniper networking equipment (core requirement). Administer and support Palo Alto Networks firewalls . Support and manage Meraki environments , including IoT device connectivity. Perform network vulnerability assessments and publish findings. Update network equipment firmware and maintain lifecycle standards. Support compliance, risk management, and security initiatives. Work with PHI and complete required HIPAA/privacy/security training. Operations & Support Lead day‑to‑day network operations to ensure reliability and availability. Monitor network performance and respond to alerts. Provide Tier II/III support; respond to tickets and troubleshoot complex issues. Participate in 24/7 network operational support rotation. Lead incident response and Root Cause Analysis (RCA); publish reports as required. Required Qualifications B.S. in Computer Science or related field (or equivalent experience). Minimum 8+ years of networking experience. At least 5+ years in network design and enterprise operations. Strong hands‑on experience with: Juniper routing & switching (required) Meraki networking solutions Cabling and physical infrastructure buildouts Deep knowledge of: L3/L7 networking and firewall technologies Network security principles IDS/IPS systems Internet and network protocols Cloud networking and cloud security architecture Experience with Linux and Windows OS administration. Experience working in regulated environments (HIPAA/PHI preferred). Preferred Certifications PNSE CCNA / CCNP Security+ CEH Other relevant industry certifications Strong troubleshooting and analytical skills Ability to lead technical initiatives independently Excellent verbal and written communication Ability to collaborate cross‑functionally Ability to prioritize multiple projects in a fast‑paced environment Adaptability in evolving technical environments Additional Requirements Must be onsite in San Carlos, CA or Austin, TX five days per week. #J-18808-Ljbffr