Network Engineer Senior

digital financial platforms mission to fight complexity and empower people , we are redefining financial services in Latin America – and this is still just the beginning of the purple future we're building. New York Stock Exchange (NYSE: NU) , we combine proprietary technology, data intelligence, and an efficient operating model to deliver financial products that are simple, accessible, and human. Our impact has been recognized by global rankings such as Time 100 Companies , Fast Company's Most Innovative Companies , and Forbes World's Best Bank . Senior Network Engineer Connectivity Engineering designs, builds and operates the network backbone that keeps Nubank's products across architecture, delivery and operations for regulatory connectivity, product connectivity and third‐party integrations, supporting both on‐premises and cloud environments in a highly available and regulated context. to evolve from traditionally managed networking toward an scalable, resilient network solutions aligned with business and regulatory requirements. for connectivity initiatives across data centers, WAN, cloud edge and partners. data center and WAN connectivity platforms (including VXLAN/EVPN fabrics), ensuring reliability, performance and observability at scale. network observability and monitoring , analyze performance and implement optimizations for speed, reliability and efficiency. network risk assessments and audits , helping ensure compliance with Nubank's security policies and regulatory requirements. Cloud, Security, Infrastructure and Product teams , vendors and partners, improving documentation, standards and operational practices, and mentoring less senior engineers . as a Network Engineer (or similar role) designing and operating production networks at scale. Networking fundamentals (hands‐on experience): Network security and services: ACLs, route‐maps, prefix‐lists, NAT, VPN (IPSec-based, such as DMVPN or similar), GRE. Palo Alto and/or Fortinet (data center architectures , preferably spine‐leaf, and their operational implications. for data center architectures. Strong knowledge of core network services and protocols: classification/marking, queuing, shaping) to manage performance and prioritize critical traffic in WAN and data center environments. monitoring/observability tools (Prometheus, Grafana, ThousandEyes or similar). packet‐level analysis (tcpdump, Wireshark) to diagnose complex network and application‐layer issues. Agile environment (Scrum or Kanban), collaborating with cross‐functional teams and stakeholders. network automation and Infrastructure as Code (IaC) Terraform, Ansible and Python for automated network provisioning and configuration. Cloud networking experience (AWS or similar), including VPC design, hybrid connectivity and security controls. Kubernetes or modern platform environments , especially in how they interact with underlying network and security layers. financial systems and networks (CCNP, JNCIP, AWS Experience with security tools (IDS/IPS, SIEM) and integrating network telemetry into security monitoring. AI/ML applications in networking (anomaly detection, traffic analysis, predictive capacity planning), and interest in helping identify realistic, high‐impact use cases for these capabilities in our environment. Hybrid – from January 2027, we expect three days per week in the office, with flexibility aligned to Nubank's hybrid work guidelines.