Principal Network Engineer

It takes powerful technology to connect our brands and partners with an audience of nearly 900 million. Whether you're looking to write mobile app code, engineer the servers behind our massive ad tech stacks, or develop algorithms to help us process trillions of data points a day, what you do here will have a huge impact on our business-and the world. Want in?
About the Team
The Yahoo Infrastructure team is responsible for the core Infrastructure and shared services required to support all Yahoo properties globally. We design and build scalable, high-performance networks, provide long-term storage strategy and automation, manage global name resolution and routing, provide capacity and performance consultation for Yahoo properties, and manage Yahoo-wide UNIX distributions and components.
About the Role
Yahoo's Network Infrastructure Engineering team is looking for a senior technical member to build and maintain its global infrastructure. This person will work with internal and external customers to gather requirements, provide guidance and network design support. This position requires a highly technical person that has a deep understanding of routing protocols, good operational experience and the ability to isolate, analyze and resolve issues.
Responsibilities

• Provide consulting and guidance for all new Yahoo applications and/or projects that affect network resources and provide consulting on existing application deployments
• Design, Document, and Support end-to-end networking solutions to support global deployment of Yahoo services including Global backbone-WAN, Metro, Data Center-LAN
• Provide training and implementation guidance on newly introduced technologies, designs, and equipment.
• Hands-on evaluation and testing of new platforms for Yahoo networking including development of test plans for current and next generation platforms, work closely with a team of test engineers through test cycles, and partner with industry vendors on next generation platforms that will meet Yahoo's needs in the future platform selection.
• Continued support for all Yahoo technology, design, and platforms
• Contribute to automation framework for network configuration and troubleshooting

Preferred Qualifications

• Experience with large scale global network (production, backbone and corporate) environments.
• Experience managing enterprise LAN/WAN, wireless, authentication, and VPN infrastructures
• Knowledge of current networking systems including routers, switches, firewalls, VPNs, load-balancers and all IP-based protocols
• Expert level experience with Juniper, Cisco and Ciena required
• Strong knowledge in TCP/IP, L2/L3 protocols, LAN, Spanning-tree, WAN, Metro, IPv4, IPv6, BGP, ISIS, OSPF, MPLS, QoS/CoS, MACSec
• Strong hands on knowledge and experience in layer 1 - Fiber Optic, OTDR, BERT, WDM, ROADM, etc
• Experience with network testing equipment and software, e.g., layer-1 switches (e.g. Calient), IXIA, Spirent, iTest, Velocity, etc
• Strong working knowledge of all OSI Layers focusing on the network stack - TCP/IP, HTTP, DNS, MPLS-TE, VXLAN/EVPN, and Anycast concepts
• Experience writing automation code in Python, Perl, Javascript, JS/web frameworks and XML+xpath
• Knowledge of source code management systems, version control tools and developing web services
• Excellent communication and network diagramming and network documentation knowledge required
• Create the SOP's and automate repeatable operational work

Yahoo is proud to be an equal opportunity workplace. All qualified applicants will receive consideration for employment without regard to, and will not be discriminated against based on age, race, gender, color, religion, national origin, sexual orientation, gender identity, veteran status, disability or any other protected category. Yahoo is dedicated to providing an accessible environment for all candidates during the application process and for employees during their employment. If you need accessibility assistance and/or a reasonable accommodation due to a disability, please submit a request via the Accommodation Request Form ( www.yahooinc.com/careers/contact-us.html ) or call 408-336-1409. Requests and calls received for non-disability related issues, such as following up on an application, will not receive a response.
At Yahoo, we know that diversity makes us stronger. We are committed to a collaborative, inclusive environment that encourages authenticity and fosters a sense of belonging. We strive for everyone to feel valued, connected, and empowered to reach their potential and contribute their best. Check out our diversity and inclusion ( www.yahooinc.com/diversity/ ) page to learn more.
US Only: Please be aware that Yahoo requires all employees entering a U.S. Yahoo office and/or attending a company event (including client events) are required to be vaccinated for COVID-19. This position will require the successful candidate to obtain and show proof of a vaccination to enter a U.S. Yahoo office and/or attending a company event (including client events). Yahoo is an equal opportunity employer, and will provide reasonable accommodation to those individuals who are unable to be vaccinated consistent with federal, state, and local law.
The compensation for this position ranges from $121,875.00 - $251,875.00/yr and will vary depending on factors such as your location, skills and experience. The compensation package may also include incentive compensation opportunities in the form of discretionary annual bonus or commissions, in addition to equity incentives. Yahoo provides industry-leading benefits including healthcare, 401K savings plan, company holidays, vacation, sick time, parental leave and an employee assistance program.
Currently work for Yahoo? Please apply on our internal career site.