Senior Systems Engineer - Traffic Management
Role Overview
The Traffic Management team keeps customer-facing and internal services reachable and secure across regions and environments.
The team owns the strategy and execution of the service mesh, routing and protecting requests from app entry points to service-to-service calls.
The role drives platform reliability, scalability, security, resilience, and observability so product teams can ship safely.
Key Skills for This Role
Full Job Posting
About Nu
Nu serves more than 140 million customers and aims to fight complexity and empower people.
Its digital financial platform uses proprietary technology and data to promote access, advancement, and transparency.
About the role
The Traffic Management team keeps customer-facing and internal services reachable and secure across regions and environments.
The team owns the strategy and execution of the service mesh, routing and protecting requests from app entry points to service-to-service calls.
The role drives platform reliability, scalability, security, resilience, and observability so product teams can ship safely.
Responsibilities
- Deliver traffic-platform milestones from problem definition through rollout and follow-up, keeping tasks, progress, and risks visible.
- Analyze complex problems and propose solutions balancing reliability, performance, security, and effort.
- Design for failure, establish tests and observability, respond to incidents, and drive preventative follow-up.
- Align technical plans and milestones with engineering, product, and partner teams.
- Use AI tools and agents for investigation, coding, review, solution exploration, and automation; promote safe team workflows.
- Maintain documentation and runbooks, share knowledge, and support engineers through reviews, discussions, pairing, and feedback.
- Participate in support and on-call routines and drive improvements based on incidents, tickets, and metrics.
What you bring
- Experience operating large-scale, high-performance synchronous distributed systems in the cloud, including load balancers, reverse proxies, TLS/mTLS, routing, and observability.
- Hands-on Kubernetes infrastructure experience, including manifests, routing, deployment strategies, DNS, and Infrastructure-as-Code.
- Daily use of AI tools and agents in engineering, with consistent validation for quality and safety.
- Experience leading infrastructure platform projects from design through production rollout and stabilization.
- Experience with Istio, Linkerd, Envoy-based service mesh, or legacy stacks such as Finagle.
- Production experience with AWS ALB/NLB, security groups, VPC, Route 53, and IAM.
- Hands-on Pulumi or Terraform experience for cloud and Kubernetes infrastructure.
- Experience building platform capabilities, shared libraries, SDKs, or internal tooling for product teams.
Work model and location
- Location: Toronto, Canada.
- Hybrid work model: in the office at least twice a week, with strategic office days.
Compensation and benefits
- Compensation range listed as 156k–184k; cadence and currency are not specified.
- Benefits include health and life insurance, pension, extended parental leave, learning and language programs, mental health support, and vacation.
Hiring process
- Recruitment may use AI-enabled tools to support evaluation; human reviewers make final hiring decisions.
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