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 https://www.nu.com/2026-en
ABOUT THE ROLE
Every transaction at Nubank travels across a network before it reaches a customer. As we grow across countries, accounts and regions, the connectivity layer underneath has to stay fast, segmented, auditable and cost-efficient, without ever becoming the thing that takes the platform down.
As a Senior Cloud Network Engineer on our Cloud Network platform engineering team, you will design, build and operate the cloud network that Nubank’s engineering teams rely on. You will treat the network as software: automated, tested and versioned. This is an IC5 role: you lead through technical depth, design quality and influence, not direct reports. You will be part of a global engineering organization and work with teammates across countries, so collaboration in English is part of everyday work.
You’ll be responsible for
•Designing and evolving connectivity patterns across multi-account, multi-region and hybrid-cloud topologies, making sound architectural decisions in designs that span multiple teams.
•Building and maintaining the network platform as code (Terraform or similar), with strong standards for testing, code review and reusable modules.
•Owning the operational health of the platform in your scope: leading incident response, driving postmortems and following through on the tech debt they uncover.
•Promoting safe change on the network: gradual rollouts, monitoring and fast rollback.
•Defining observability for the platform, with monitoring and SLAs that surface issues before customers feel them.
•Owning the network security posture of your scope, including segmentation and standards such as PCI DSS, with controls that hold up under audit.
•Simplifying the topology over time through consolidation, deprecation and paved roads, balancing scalability, maintainability and cost.
•Evaluating build vs. buy decisions with data on stability, scalability and cost.
•Mentoring other engineers, taking part in hiring, and documenting decisions so knowledge travels across teams.
We are looking for a person who has
•Hands-on experience with AWS networking: Transit Gateway, VPC design, Direct Connect, PrivateLink, Route 53, NAT/egress patterns and network firewalls (or equivalent in another cloud).
•Coding skills in at least one language such as Python, Go, Java or .NET, and experience with infrastructure as code (Terraform or similar).
•Solid understanding of BGP, dynamic routing, IP address management, load balancers and hybrid connectivity, with experience planning, deploying and troubleshooting networks at scale.
•Experience leading incident response and root cause analysis for high-impact failures that cross team boundaries.
•Ability to lead projects with ambiguity, with or without formal authority.
•Clear communication with both technical and non-technical audiences.
•An analytical mindset focused on root causes and continuous improvement.
•English proficiency to read, write and lead discussions across time zones.
Location for this opportunity (City, Country)
São Paulo, Brazil
Rio de Janeiro, Brazil
Belo Horizonte, Brazil
Campinas, Brazil
Our Benefits
•Chance of earning equity at Nubank
•Food/Meal Card (Vale-Refeição and/or Vale Alimentação)
•Public Transportation Commuting Benefit (Vale-Transporte)
•NuCare — Psychological, Financial and Legal Assistance Program
•Life Insurance
•Medical Plan
•Dental Plan
•NuLanguage — Language Course Program
•Nucleo — Our learning platform of courses
•Extended Parental Leave
•Daycare Allowance
•Parental Consultancy
•Work-from-home Allowance
•Gym Partnerships
•30 days of paid vacation
•Relocation Assistance Package, if applicable
Work Model for this Role
Hybrid 2-3 times/week: Our hybrid work model brings us to the office at least twice a week, on strategic days designed to maximize team connection and collaboration. For more details, visit https://building.nubank.com/nu-hybrid-work-model/
Our recruitment process may involve the use of artificial intelligence–enabled tools, such as automated interview transcription and analysis, to support the evaluation process. Artificial intelligence is not used to make final hiring decisions; all decisions are made by human reviewers.
To maintain a consistent and fair process for every candidate, Nu does not provide individualized technical feedback. See how our policy works here https://script.google.com/a/macros/nubank.com.br/s/AKfycbwvrewE58oGSbRWIVv8CyCWN68GLxpPVsfYYXv-ZHg94QFsTJmi82rF1x0yt-OTs2W0DQ/exec