Senior Systems Engineer - Traffic Management

The role

The Senior Systems Engineer will drive the reliability, scalability, and security of the traffic platform and service mesh. This role involves routing and protecting service requests and evolving the platform to support product scaling.

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 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 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.
• Worked with AWS networking and compute primitives including ALB/NLB, security groups, VPC, Route 53, and 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

• Opportunity of earning equity at Nu
• Medical Insurance
• Dental and Vision Insurance
• Life Insurance and AD&D
• Extended maternity and paternity leaves
• Nucleo - Our learning platform of courses
• NuLanguage - Our language learning program
• NuCare - Our mental health and wellness assistance program
• 401K
• Saving Plans - Health Saving Account and Flexible Spending Account
• Work-from-home Allowance
• Relocation Assistance Package, if applicable

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.