Senior Cloud Infrastructure Engineer

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

We are looking for a Senior Cloud Infrastructure Engineer to join our Platform Team and play a key part in evolving, scaling, and maintaining our cloud infrastructure. The ideal candidate brings deep hands-on experience designing and operating multi-cluster Kubernetes environments on EKS, strong expertise in Terraform and Terragrunt for large-scale infrastructure automation, and a solid command of AWS services. Experience with GitLab CI/CD, GitOps tooling, observability stacks, and Kubernetes security is essential.

Our Platform Team enjoys a high degree of autonomy - both in how we organize our work and in the solutions we build. There's plenty of room to introduce and shape the technology stack, and raise the bar for how infrastructure is done. That freedom comes with great ownership, responsibility, and accountability: you'll be expected to drive decisions end-to-end, not just execute them. As a team, we're also strongly cost-aware - we treat infrastructure spend as something to actively optimize, not just monitor, and we factor that into every architectural decision. The person will directly influence our DevOps culture and engineering best practices across the organization.

Your responsibilities:

• Own and evolve our multi-cluster EKS infrastructure - from day-to-day operations to cluster upgrades, node group strategies, and capacity planning.
• Keep our Terraform and Terragrunt codebase clean, scalable, and ahead of the growing infrastructure needs - including refactoring and setting patterns others follow.
• Be the go-to person for Kubernetes internals - troubleshooting hard problems, tuning performance, hardening security (RBAC, network policies, secrets management).
• Drive cost optimization as a first-class concern - identify waste, propose and implement improvements, and make cloud spend a conscious engineering decision.
• Partner with development teams to help them ship reliably - improving deployment pipelines, platform tooling, and the overall 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: make sure we know what's happening in our systems before our users do.
• 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)

Nice to have:

• Knowledge of observability concepts & tools (New Relic, ELK, Prometheus, Grafana, OpenTelemetry)
• AWS cost optimization / FinOps practices (Spot instances, rightsizing, Reserved/Savings Plans)
• Programming skills in Go or Python for automation, tooling, and Kubernetes extensions (custom controllers/operators, CRDs, admission webhooks)
• Experience using and configuring AI agentic coding harnesses (Claude Code, Codex, etc.), using them effectively and optimally to automate day-to-day DevOps/SRE workflows.
• Experience with container security scanning (Trivy, Falco)
• Understanding of the software development lifecycle and ability to collaborate closely with engineering teams

What else have we got others probably don't?

Recognized by Forbes' as one of the most valuable e-commerce companies in Poland

Ranked as “Digital Champion CEE” from 2021 to now on!

You’ll own your craft. Here is where passion meets performance. We trust people to do what they do best. With 400+ teammates across the globe, we thrive in a fast-paced environment where responsibility is shared, not nitpicked. We give clarity, space, and support - not endless oversight. You take the lead, drive results, and your autonomy is real.

You’ll have room to epic grow. Displate never sleeps. New tech, partnerships, and collections (250+ and counting!) mean there’s always a next challenge. Try things. Test ideas. Push boundaries. Mistakes happen, but we learn fast and iterate faster. Hungry to succeed, to innovate, to do better every day? It's a match! The accountability you embrace here, the problems you solve, and the impact you make will define your career trajectory for years to come.

You’ll shape a community that cares. Building products people love is rewarding. Teaming up with people who care deeply about the community we serve, keeps it truly unique. We share passion, grow professionally, and lean on each other’s expertise. Beyond fandom, we’re socially engaged and support charity work that helps people in need. Here, your work creates experiences that resonate, and your efforts contribute to something bigger than business.

Creative space - Catch up with your colleagues and soak up the creative Displate vibes firsthand in our Warsaw office. Nothing beats in-person high fives!

Health comes first - Stay vibrant with a private health plan and life insurance for you and your close ones.

Get your reps in - Choose from two different sports cards, you fitness beast.

Relax, we got it - 20 or 26 paid vacation days, whenever you need them.

Own your time - Leave melting clocks to Salvador Dali. Work flexible hours and balance your schedule your way.

Reading types - Our office library is here to get you inspired. Let us know what we should get next.

Team players - Forget webcams, your team looks best over a nice meal! Go ahead and plan a night out, it’s Displate’s treat.

Putting 'art' in 'party' - Displate Birthdays, charity events, Halloween, Black Friday... There’s so much to celebrate together! In for a chill? Each year, we pick a new beautiful spot and slow down for a day or two.