Senior Systems Engineer - Traffic Management

The role

You will drive the reliability, scalability, and security of the traffic platform and service mesh. You will manage service requests from mobile app entry points to service-to-service calls 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 to investigate issues, write code, and automate work.
• Create and maintain technical documentation and runbooks.
• Help other engineers grow through feedback and code reviews.
• 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 issues 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 go-live.
• 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.

Nice to have

• Experience with Istio or other service-mesh technologies such as Linkerd or Envoy-based solutions
• Experience with legacy stacks like Finagle

Benefits

• Health Insurance
• Life Insurance
• Pension Plan
• Extended maternity and paternity leaves
• Nucleo - Our learning platform of courses
• NuLanguage - Our language learning program
• NuCare - Our mental health and wellness assistance program
• Vacations

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.