Senior Cloud Infrastructure Engineer

October 13, 2026

Remote

Senior

Warsaw, Poland

Description

The company is hiring a Senior Cloud Infrastructure Engineer to join its Platform Team and shape the evolution, scaling and maintenance of cloud infrastructure. The role centers on operating multi-cluster Kubernetes on EKS, large-scale Terraform and Terragrunt automation, AWS services, GitLab CI/CD, GitOps and observability. The Platform Team works with high autonomy, drives decisions end-to-end and treats cloud spend optimization as a first-class engineering concern. The position also influences DevOps culture and engineering best practices across the organization.

Responsibilities

Own and evolve multi-cluster EKS infrastructure from day-to-day operations to cluster upgrades, node group strategies and capacity planning
Keep the Terraform and Terragrunt codebase clean, scalable and ahead of growing infrastructure needs including refactoring and setting patterns
Be the go-to person for Kubernetes internals: troubleshooting hard problems, tuning performance, hardening security
Drive cost optimization as a first-class concern by identifying waste and implementing improvements
Partner with development teams to improve deployment pipelines, platform tooling and overall developer experience
Evaluate and introduce new tools and approaches when they genuinely solve a problem
Contribute to observability so the team knows what is happening in systems before users do

Requirements

3+ years of commercial experience administering Kubernetes clusters at scale, EKS required with multi-cluster setups
3+ years of commercial experience managing AWS cloud environments: ALB, VPC networking, EFS, EBS, EC2, S3, IAM, EKS control plane
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 at scale
Solid experience developing, automating and maintaining GitLab CI/CD workflows and GitOps practices
Hands-on experience with Kubernetes networking: CNI plugins, Envoy and Ingress controllers
Strong knowledge of Kubernetes security: RBAC, network policies, secrets management with Vault or 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 with Cluster Autoscaler and Karpenter
Knowledge of observability concepts and tools: New Relic, ELK, Prometheus, Grafana, OpenTelemetry
AWS cost optimization and FinOps practices: Spot instances, rightsizing, Reserved and Savings Plans
Programming skills in Go or Python for automation, tooling and Kubernetes extensions such as custom controllers, CRDs and admission webhooks
Experience using and configuring AI agentic coding harnesses like Claude Code and Codex to automate DevOps workflows
Experience with container security scanning using Trivy and Falco
Understanding of the software development lifecycle and ability to collaborate closely with engineering teams

Conditions

Flexible working hours to balance your schedule
Private health plan and life insurance for you and your close ones
Choice of two different sports cards
20 or 26 paid vacation days
Creative space in the Warsaw office and an office library
Company-funded team dinners, charity events and annual company trips

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