Software Engineer II, Foundation

Platform Engineering at Chainalysis provides the shared infrastructure, tooling, and developer experience that powers every engineering team. The Foundation discipline owns the substrate: cloud infrastructure, networking, Kubernetes, streaming, and security primitives. We are hiring a Software Engineer II to join the Foundation team and build, improve, and operate the infrastructure primitives that every service at Chainalysis depends on. This is an infrastructure-focused individual contributor role, typically suited for someone with 3–5 years of experience, and you will report to the Senior Manager of Platform Engineering.

What you'll do

• Build and maintain cloud infrastructure across AWS and GCP using Terraform, designing modules and patterns that provision the substrate for services 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
• 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 and working with the Kubernetes API to build 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 back into automation

What you bring

• 3+ years of software engineering or infrastructure engineering experience
• Hands-on experience with AWS services such as EC2, EKS, IAM, S3, and VPC, with evidence of building and operating real infrastructure
• Working knowledge of Kubernetes in production, with experience operating or deploying workloads on K8s clusters
• Experience with infrastructure-as-code, preferably Terraform (Pulumi or CloudFormation acceptable)
• Proficiency in at least one of Go, Python, or shell scripting; Go is preferred for reconciler work
• Comfort with CI/CD pipelines such as GitHub Actions, Argo, or Jenkins, plus hands-on experience with on-call and incident response

Nice to have

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

About Chainalysis

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