Tech Lead - Global Offices Network

About Nu Nu serves more than 140 million customers, guided by a mission to fight complexity and empower people. The company has been leading an industry transformation through innovative products and human-centered services.   Proprietary technology and data at scale power Nu’s digital platform, built to promote financial access, advancement, and transparency. Its business model thrives on customer love and lower costs, feeding a flywheel of growth and profitability. Visit our Institutional Page About the role The Global Offices Network team enables secure, reliable, and scalable connectivity for Nubank offices worldwide. As Tech Lead, Global Offices Network, you will provide hands-on technical leadership for the end-to-end direction of office networks—from architecture and carrier connectivity to implementation, monitoring, incident response, lifecycle management, and continuous improvement. You will lead complex technical decisions and delivery across multiple locations, coordinate internal and external partners, and raise the engineering standard through clear ownership, documentation, automation, and knowledge sharing. You will also work directly with AI solutions and agent-orchestration tools to improve infrastructure operations with greater agility and scalability. You'll be responsible for Lead the global networking team in implementing and sustainably supporting infrastructure across multi-site offices. Provide technical direction and mentorship to engineers at different levels, supporting their technical and professional growth. Define and evolve standards and reference architectures for office LAN, WLAN, WAN, internet edge, firewalls, NAC, segmentation, and observability. Lead end-to-end network delivery for new offices, expansions, relocations, and major infrastructure changes, from design through launch and operational handover. Own technical designs covering IP addressing, VLANs, routing, wireless, carrier connectivity, resiliency, firewall zones, and enterprise-service access. Operate and improve Aruba, Cisco, Palo Alto, SD-WAN, NAC, VPN, and related network platforms. Lead complex incidents and escalations, including troubleshooting, root-cause analysis, postmortems, and reliability improvements. Maintain monitoring, alerting, capacity planning, lifecycle management, runbooks, rollback plans, and operational handovers for global office infrastructure. Drive vulnerability remediation, security-control implementation, audit evidence, and clear RACI definitions across infrastructure operations. Coordinate technical work with vendors, carriers, data-center teams, security teams, facilities partners, and other cross-functional stakeholders. Run team rituals and coordinate initiatives from ideation through final launch in partnership with peers. Promote automation, accurate documentation, knowledge sharing, and AI-enabled practices that reduce operational silos and improve service quality. We are looking for a person who has Experience designing, implementing, and operating enterprise or office networks across multiple sites. Hands-on knowledge of LAN, WLAN, WAN, routing, switching, VLANs, IP addressing, DNS/DHCP, and network resiliency. Experience designing and operating enterprise firewalls, segmentation, access policies, certificates, firmware, VPNs, and secure network controls. Experience with wireless design, RF analysis, access-point planning, authentication, and troubleshooting. Experience leading infrastructure projects involving multiple teams, locations, vendors, and physical dependencies. Experience with monitoring, alerting, incident response, troubleshooting, post-incident reviews, and reliability improvement. Understanding of vulnerability management, audit requirements, security controls, and ownership models such as RACI. Experience providing technical direction while remaining comfortable with hands-on implementation and troubleshooting. Experienc