Software Engineer , Platform

Company description

Welcome to Our World We’ve been leading the charge in the affiliate industry from day one—establishing performance marketing and paving the way for future innovations. We're known for maintaining one of the largest, most reliable partnership platforms with impeccable, personalized service. Founded in Santa Barbara, California in 1998, CJ (formerly Commission Junction) stands as the most trusted name in performance marketing.

We specialize in building partnerships between top brands and reputable publishers to drive revenue and business growth. CJ’s industry-leading solutions make us the platform of choice for over 3,800 global brands across sectors like retail, travel, finance, technology, and home services. As part of Publicis Groupe, our savvy data capabilities, cutting-edge tech, and strategic expertise facilitate genuine connections, allowing brands to reach consumers wherever they are.

A Quick Peek at Affiliate Marketing Think back to your last online purchase. Did an influencer tip you off about a great product and offer a discount? Or perhaps you relied on a trusted review site to make your decision? Whatever path you took, affiliate publishers likely played a role by influencing, informing, or helping you find the best deal.

CJ connects brands with these publishers, creating valuable resources for shoppers like you.

This is a hybrid role requiring 3 days a week

You must be work authorized in the United States without the need for employer sponsorship.

Must have Ad Tech / Mar Tech industry experience, specifically in e-commerce, travel, and finance.

As a Software Engineer 2 on the Engineering Experience (Eng Exp) platform team, you help run and improve the platform that powers CJ's production systems across multiple AWS regions. "Platform" here is broad - it is the Kubernetes clusters, but also the observability stack every squad depends on, the CI/CD and artifact infrastructure their builds run through, the AWS networking that connects them, and the secrets and access systems that gate them.

Eng Exp owns all of it. This is a hands‑on, operationally-focused role: you'll take on well-scoped work across these systems, ship it end to end, and build real depth in them with senior engineers alongside you. We are looking for someone genuinely curious about how these systems work under the hood and eager to grow into owning them.

Eng Exp owns the systems below. You'll contribute to operating them and build depth in them over time, starting with guidance from senior engineers:

• Observability & monitoring — Prometheus, Alert manager, Grafana, and Open Telemetry across production regions. You'll add and tune metrics, dashboards, and alert rules, and learn how Prometheus and Alert manager actually behave at scale - cardinality, recording rules, and alert routing. This is real depth to grow into, not just dashboard-building.
• Kubernetes & cloud infrastructure — multi-region EKS clusters: routine maintenance, node group changes, controller upgrades, and add‑on configuration, with senior engineers alongside.
• AWS networking — VPCs, subnets and CIDR management, security groups, and Route
  53. You'll help keep prod networking healthy and learn the multi-region topology.
• CI/CD & artifact management — Git Lab CI/CD pipelines, Git Ops delivery through ArgoCD, and the Nexus artifact repository.
• Access & identity — IAM roles and service accounts for apps in the clusters, Vault‑managed secrets, and fulfilling access requests - then helping turn the repetitive ones into self‑service.
• Cost observability — Open Cost and cleanup work (e.g. orphaned EBS volumes) so cost is attributable rather than shared overhead.

• Pick up well‑scoped platform work across the systems above and ship it end to end
• Build and maintain Git Lab CI/CD pipelines and Git Ops delivery through ArgoCD
• Write and review infrastructure‑as‑code with Terraform for AWS resources
• Add and tune observability - Prometheus metrics, Grafana dashboards, Alert manager rules
• Help fulfill and then automate recurring requests (ingress, DNS, service accounts, IAM roles)
• Help investigate platform…