Senior Cloud Infra Engineer - EKS, Terraform, Cost-Savvy

Displate; Warszawa; On-site; PLN 240,000 - 360,000; Full time

Benefits offered by this job

Private health plan

Life insurance

Flexible hours

Two sports cards

20 or 26 paid vacation days

Warsaw office

Job summary

Displate, a Warsaw-based ecommerce team, seeks a Senior Cloud Infrastructure Engineer to scale and operate our cloud platform. You will own multi-cluster EKS, automate with Terraform/Terragrunt on AWS, and advance GitLab CI/CD and GitOps.

You will drive cost optimization, security hardening, and platform tooling improvements, collaborating with developers to ship reliably and improve observability.

Qualifications

• 3+ years of commercial experience in administering Kubernetes clusters at scale (EKS required; multi-cluster setups).
• 3+ years of commercial experience in managing AWS cloud environments (ALB, VPC/networking, EFS, EBS, EC2, S3, IAM, EKS control plane, etc.).
• Proven experience designing and operating multi-cluster Kubernetes architectures (cluster federation, cross-cluster networking, workload distribution).
• Strong expertise in Terraform and Terragrunt for infrastructure provisioning and configuration management (IaC at scale).
• Solid experience developing, automating & maintaining GitLab CI/CD workflows and GitOps practices
• Hands-on experience with Kubernetes networking (CNI plugins, Envoy/Ingress controllers)
• Strong knowledge of Kubernetes security: RBAC, network policies, secrets management (Vault/AWS Secrets Manager), pod security standards
• Experience ensuring security, scalability, and high availability across production-grade infrastructure
• Experience with cluster lifecycle management: upgrades, node group management, capacity planning, autoscaling (Cluster Autoscaler, Karpenter)

Responsibilities

• Own and evolve our multi-cluster EKS infrastructure - day-to-day operations, cluster upgrades, node group strategies, and capacity planning.
• Keep Terraform and Terragrunt codebase clean, scalable, and ahead of growing infrastructure needs — including refactoring and pattern setting.
• Be the go-to person for Kubernetes internals - troubleshooting, performance tuning, security hardening (RBAC, network policies, secrets).
• Drive cost optimization as a first-class concern - identify waste, propose improvements, and make cloud spend a conscious engineering decision.
• Partner with development teams to help them ship reliably - improve deployment pipelines, platform tooling, and developer experience.
• Evaluate and introduce new tools and approaches when they genuinely solve a problem - we have the freedom to do this, and we use it deliberately.
• Contribute to observability: ensure we know what's happening in our systems before our users do.

Skills

Kubernetes administration

AWS cloud environments

DevOps collaboration

Cost optimization

GitOps practices

Observability

Kubernetes security

Cluster lifecycle management

EKS multi-cluster design

Go or Python automation

Tools

Terraform

Terragrunt

GitLab CI/CD

Envoy / Ingress controllers

Kubernetes networking (CNI)

Vault / AWS Secrets Manager

Cluster Autoscaler

Karpenter

Trivy

Falco

Job description

Displate, a Warsaw-based ecommerce team, seeks a Senior Cloud Infrastructure Engineer to scale and operate our cloud platform. You will own multi-cluster EKS, automate with Terraform/Terragrunt on AWS, and advance GitLab CI/CD and GitOps.

You will drive cost optimization, security hardening, and platform tooling improvements, collaborating with developers to ship reliably and improve observability.