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.

• 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 mission-critical environment
• Perform network erver 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 (Service Now) and maintain appropriate SLA/OLA levels for response and resolution
• Work within established configuration and change management policies and system 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(s)
• Continuously update the Knowledge Base (SharePoint) with new configs, diagrams, process, 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

• 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 troubleshoot Switches, load balancers, firewalls, and WIFI 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., Solar Winds)
• 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, etc. or similar professional certification preferred
• Advanced understanding of encryption protocols and digital certificates (SSL, HTTPS, etc.)
• Proficiency in network automation, monitoring tools (e.g., Prometheus, ELK Stack), and scripting languages (Python, Bash).
• Ability to write routine status reports, correspondence and verbally communicate effectively with technical and non-technical colleagues and vendors of organization.
• Ability to carry out instructions furnished in written, oral, or diagram form. Ability to handle or escape issues involving several concrete variables in standardized situations.
• Experience handing relationships with ISPs and MSPs…