Senior Systems Engineer - Traffic Management

The role

You will drive the reliability, scalability, and security of the service mesh platform. This involves evolving the service mesh, strengthening resilience and observability, and routing service requests across all regions and environments.

What you will do

• Deliver end-to-end milestones on the traffic platform.
• Take ownership of complex and ambiguous problems.
• Ensure the stability and quality of shipped code through testing and observability.
• Collaborate with engineers, product, and partner teams.
• Use AI and agents in an AI-first way to investigate issues, write code, and automate work.
• Create and maintain technical documentation and runbooks.
• Help other engineers grow through feedback, code reviews, and pairing.
• Participate in support and on-call routines.

Required qualifications

• Operated large-scale, high-performance synchronous distributed systems in the cloud.
• Worked with load balancers, reverse proxies, TLS/mTLS, and routing.
• Used metrics, logs, and traces to debug and optimize performance.
• Worked hands-on with Kubernetes-based infrastructure and Infrastructure-as-Code tooling.
• Managed DNS configuration and deployment strategies.
• Uses AI as part of daily engineering workflow.
• Led end-to-end infrastructure platform projects from design to production.
• Experience with Istio or other service-mesh technologies such as Linkerd, Envoy-based solutions, or Finagle.
• Worked with AWS networking and compute primitives (ALB/NLB, security groups, VPC, Route 53, IAM).
• Hands-on experience using Infrastructure-as-Code tools such as Pulumi or Terraform.
• Previously built platform capabilities or shared libraries for other engineers.

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

Before you apply

• Recruitment process may involve the use of artificial intelligence–enabled tools.
• Nu does not provide individualized technical feedback.

About the company

Nu serves more than 140 million customers with a mission to fight complexity and empower people. The company uses proprietary technology and data at scale to power its digital platform.