Platform Engineer II, Foundation

As a Platform Engineer II on the Foundation team at Chainalysis, you build and operate the shared infrastructure that powers every engineering team. You own the cloud infrastructure, Kubernetes clusters, streaming systems, and security primitives that the entire organization depends on. This is an infrastructure-focused individual contributor role suited for someone with 3-5 years of experience, and you will work alongside senior engineers who will pair with you and invest in your growth.

What you'll do

• Build and maintain cloud infrastructure across AWS and GCP using Terraform, designing modules and patterns that provision the substrate services run on and thinking beyond immediate use cases to how your work is consumed across the organization
• Operate and evolve multi-tenant Kubernetes clusters (EKS) serving the entire engineering organization, owning node lifecycle, upgrades, security contexts, and networking decisions that affect every team
• Own the operational side of the streaming infrastructure migration from managed Kafka (MSK) to WarpStream, building and maintaining the tooling that supports it
• Contribute to platform tooling and reconcilers that underpin the platform contract model, writing Go, working with the Kubernetes API, and building high-quality self-service primitives that engineering teams rely on
• Design and maintain foundational networking and security infrastructure, including transit gateways, GCP Interconnect, ingress, security groups, IAM policies, and IRSA
• Participate in on-call rotations and drive operational excellence by responding to infrastructure incidents, writing and improving runbooks, and feeding incident patterns into automation

What you bring

• 3+ years of platform engineering experience
• Hands-on experience with AWS services such as EC2, EKS, IAM, S3, and VPC, built and operated in real infrastructure
• Working knowledge of Kubernetes in production, with experience operating or deploying workloads on K8s clusters beyond a local environment
• Experience with infrastructure-as-code, strongly preferring Terraform (Pulumi or CloudFormation acceptable)
• Proficiency in at least one of Go, Python, or shell scripting (Go preferred)
• Comfort with CI/CD pipelines such as GitHub Actions, Argo, or Jenkins, and hands-on experience with on-call and incident response

Nice to have

• Experience building Kubernetes operators or controllers, including CRDs, reconcilers, and the controller-runtime library
• Familiarity with streaming infrastructure such as Kafka or WarpStream, or depth in networking including VPCs, transit gateways, ingress controllers, DNS, load balancing, and security groups
• Experience in regulated environments with SOC 2, ISO-27001, or similar compliance frameworks, or familiarity with GitOps patterns such as ArgoCD or Flux
• A passion for platform engineering as leverage and a drive to eliminate toil and make other engineers more productive

About Chainalysis

Chainalysis is the blockchain data platform that makes it easy to connect the movement of digital assets to real-world services. Powered by deep blockchain data and AI, the company helps organizations investigate illicit activity, manage risk exposure, and develop innovative market solutions built on trusted blockchain intelligence.