.Nubank is a young company with a large ambition: revolutionize the lethargic financial services industry. In Brazil, since 2014 we have been actively servicing millions of clients with our mobile-controlled credit card product and digital bank account, and is the largest challenger bank in the world outside of Asia. We're a technology-driven financial services Unicorn funded by Sequoia Capital, Founders Fund, Tiger Global, Kaszek Ventures, and QED Investors. Nubank challenges an outdated and bureaucratic system by building a simple, safe, and 100% digital environment that delights our customers.Shipping valuable features requires dealing with distributed systems, infrastructure, monitoring and observability, platform engineering and production microservices. Our engineers commonly rotate focus on these responsibilities. We consistently work with and explore new technologies, and thus value professionals who are open to learning new things, regardless of preexisting comfort zones.About the PositionThe Senior Network Engineer will work along the Global IT Engineering team, working with infrastructure and support engineers, among others. Working in different Connectivity projects, and end-to-end accountability for the lifecycle of connectivity infrastructure of the Nubank products, i.E. Architecture & Engineering, Delivery and Support.Key Responsibilities:Design customized solutions as required to support Business objectives, wherever applicable.Execute High Level Design and Low Level Design for Products connectivity solutions.Assist in development of networking architecture and Global standards including hardware/software, protocol, transport and topology standards.Design, build and improve peripheral network infrastructure and platform through the execution of projects and changes based on standards and reaching all quality, time, cost, scope, availability and reliability parameters.Support the enterprise network infrastructure, including troubleshooting incidents in a timely manner, handle network changes, participate in problem management processes including root cause analysis and configuration management.Provide reliable and stable infrastructure via best practices, standards, simplified support models, automated processes, operational excellence and outstanding customer satisfaction.Effective monitoring, implement a robust control and delivery of solutions services to identify issues proactively within the agreed SLAs using different methodologies, tools and processes.Configuration, maintenance and support of network solutions for Nubank's products, including Data Centers and 3rd Parties.Configuration and maintenance on network equipment multivendor and platform technologies Juniper, Cisco, F5, Fortinet, AWS, Palo Alto, and Infoblox.Willingness to produce documentation and written deliverables.We are looking for a person who hasStrong working knowledge in L2 (Switching) protocols. STP, VLAN, LACP, Stacking, Bundle ethernet, Port security