Senior Network Engineer

As a Senior Network Engineer at Penumbra, you will play a critical role in determining the company's long-term goals. You will focus on working with a global cross‑functional team and be responsible for designing, implementing, and maintaining robust, secure, and scalable network solutions (LAN, WAN, Cloud, etc.) across enterprise environments. This role ensures high availability, performance, and security of network systems, supporting business‑critical applications and services. This role will involve interpreting the information generated by our network and server monitoring systems to manage capacity and availability and promote increased uptime; generating, gathering, and reporting data to create metrics and providing the support required to meet the defined service levels. What You’ll Work On Architect and implement scalable network solutions, including LAN/WAN, data center fabrics, and hybrid cloud interconnects Configure, install, and support various IT network infrastructure and services (e.g., routers, switches, firewalls, VPN, QoS, servers, storage, cabling) Lead troubleshooting and root‑cause analysis for network incidents, minimizing downtime in a mission‑critical environment Perform network/server maintenance and system upgrades including service packs, patches, hot fixes, and security configurations Monitor performance and ensure system availability and reliability Monitor network performance metrics, capacity planning, and upgrades to anticipate and scale for growing demands Work on incident and service request tickets from both end users and IT team escalations, in the ITSM ticketing system (ServiceNow) and maintain appropriate SLA/OLA levels for response and resolution Work within established configuration and change management policies and systems to ensure awareness, approval, and success of changes made to the IT infrastructure Ensure system/network application architectures and configurations conform to Information Security policies, standards, and guidelines Liaise with vendors and other IT personnel for problem resolution Continuously update the Knowledge Base (SharePoint) with new configs, diagrams, processes, and procedures Monitor and analyze negative impacts resulting from system or network implementations, ensuring resources are balanced and functioning within specified ranges Mentor junior engineers, conduct code and configuration reviews, and contribute to documentation and knowledge sharing Provide after‑business‑hours and weekend support as needed What You Contribute A Bachelor’s degree in information technology or related field with 8+ years of experience, or equivalent combination of education and experience. 8+ years of progressive experience in network engineering, with 3+ years in a senior or lead role managing enterprise‑scale networks. 7+ years’ experience configuring, installing/managing, and troubleshooting switches, load balancers, firewalls, and Wi‑Fi equipment. Deep expertise in routing/switching protocols (e.g., BGP, OSPF) and hardware from vendors like Cisco. Strong knowledge of network security best practices, including zero‑trust architectures and SD‑WAN implementations. 7+ years’ performance tuning and optimization using native vendor monitoring and third‑party tools (e.g., SolarWinds). 5+ years’ experience in MS Azure networking in a multi‑region environment. Knowledge of High Availability (HA) and Disaster Recovery (DR) and WAN diversity options for Network Operations and Management. CCNA/CCNP, CCIE, Azure Networking, or similar professional certification preferred. Advanced understanding of encryption protocols and digital certificates (SSL, etc.). Proficiency in network automation, monitoring tools (e.g., Prometheus, ELK Stack), and scripting languages (Python, Bash). Strong oral, written, and interpersonal communication skills. Ability to write routine status reports, correspondence, and verbally communicate effectively with technical and non‑technical colleagues and vendors. Ability to carry out instructions furnished in written, oral, or diagram form, and handle or escalate issues involving several concrete variables in standardized situations. Experience handling relationships with ISPs and MSPs (Managed Service Providers). Experience with Cisco DNA Center (DNAC), Identity Services Engine (ISE), or other Network Access Control (NAC) systems. High sense of ownership, accountability, and responsibility, with a proactive can‑do attitude. Proficiency in Excel, MS Word, and Visio. Ability to create and maintain documentation of various technological solutions. High degree of accuracy and attention to detail. Excellent organizational skills with ability to prioritize assignments while handling various projects simultaneously. Working Conditions General office environment. Willingness and ability to work on site. May have business travel from 0% – 10%. Must be able to move between buildings and floors, remain stationary, use a computer or other standard office equipment, and read, prepare emails, and produce documents and spreadsheets. Must be able to communicate and exchange accurate information with employees at all levels on a daily basis. Annual Base Salary Range: $143,000 – $210,000 per year. We offer a competitive compensation package plus a benefits and equity program, when applicable. Individual total compensation will vary based on factors such as qualifications, skill level, competencies, and work location. What We Offer A collaborative teamwork environment where learning is constant, and performance is rewarded. The opportunity to be part of the team that is revolutionizing the treatment of some of the world's most devastating diseases. A generous benefits package for eligible employees that includes medical, dental, vision, life, AD&D, short and long‑term disability insurance, 401(k) with employer match, paid parental leave, eleven paid company holidays per year, a minimum of fifteen days of accrued vacation per year (increasing with tenure), and paid sick time in compliance with applicable law(s). Qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, sexual orientation, gender identity, age, disability, military or veteran status, or any other characteristic protected by federal, state, or local laws. For additional information on Penumbra’s commitment to being an equal opportunity employer, please see Penumbra's AAP Policy Statement. If you reside in the State of California, please also refer to Penumbra's Privacy Notice for California Residents. #J-18808-Ljbffr Penumbrainc