Mid DevOps Engineer (B2B)

Oxylabs; Warszawa; On-site; PLN 201,000 - 257,000; Full time

Benefits offered by this job

Private health insurance

Gym allowance

Wellness app

Job summary

Lever, Inc. is seeking an Infrastructure Engineer in Warsaw to manage Kubernetes clusters on Google Cloud and bare-metal environments. You will drive reliability and scalability by implementing IaC, deployment automation, and secure access controls, while collaborating closely with developers to improve system stability.

The role offers mentorship, growth opportunities, and exposure to large-scale distributed workloads in a fast-paced environment.

Qualifications

• Hands-on experience operating Kubernetes workloads and cloud-native infrastructure.
• Strong fundamentals in Linux networking and security best practices.
• Experience with Terraform, Ansible, and IaC tooling.

Responsibilities

• Operate and troubleshoot GKE and Kubernetes clusters, including node health, networking, and deployments.
• Provision and maintain infrastructure with Terraform, Terragrunt, and Ansible.
• Build Helm charts, Argo CD ApplicationSets, and GitHub Actions for continuous delivery.

Skills

Kubernetes

Linux

TCP/IP/DNS/HTTP/TLS

Terraform

Ansible

Helm

Git/GitHub Actions

Docker

Bash

Python

GCP/GKE IAM/Secret Manager

Security best practices

Education

No specific degree required

Tools

Terraform

Terragrunt

Ansible

Helm

Argo CD

GitHub Actions

Job description

The team waiting for you:
Our Infrastructure Team is responsible for operating a highly robust platform running across Google Cloud and bare-metal environments that processes massive volumes of web data daily. In this role, you will add immense value by managing Kubernetes clusters, infrastructure as code, and deployment automation to ensure continuous service reliability. As our large-scale distributed workloads continue to expand, this is a critical time to join us in scaling and refining our underlying systems. Ultimately, you will tackle the core challenge of providing rock-solid stability and performance for our infrastructure, all while receiving continuous mentorship and growth opportunities within the team.

In this role, you’ll:

• Operate and troubleshoot GKE and k8s clusters, actively managing everything from node health and networking to application deployments.
• Provision and maintain infrastructure using Terraform, Terragrunt, and Ansible.
• Build and improve Helm charts, Argo CD ApplicationSets, and GitHub Actions workflows for seamless delivery.
• Investigate incidents using logs, metrics, and health checks, and execute safe changes with clear validation and rollback plans.
• Enforce secure access to GCP services, secrets, and container registries, maintaining a security-first approach to production changes.
• Work directly with developers to troubleshoot issues and improve the overall stability and performance of our systems.

Your skills & experience:

• Hands-on experience operating Kubernetes workloads, backed by solid fundamentals in Linux servers, TCP/IP, DNS, HTTP, and TLS.
• Practical experience managing infrastructure with Terraform and Ansible, including reviewing infrastructure plans and managing changes across environments.
• Proficiency with Helm, Git-based delivery, and Docker container build pipelines, along with confidence in writing Bash and Python scripts.
• Working knowledge of GCP—particularly GKE, IAM, and Secret Manager - paired with a security-conscious approach to credentials and access permissions.
• Clear communication skills during code reviews and incidents, demonstrating the ability to investigate unfamiliar systems and explain technical trade-offs.

Nice to have:

• Experience with large-scale, multi-cluster systems.
• Experience with web-scraping environments.
• Experience with any of the following: Cloudflare, HAProxy, ArgoCD, Linkerd, Redis, PostgreSQL, Datadog, or VictoriaMetrics.
• Familiarity with programming languages such as Python, NodeJS, Rust, or Go.

Salary & Benefits:

• Gross salary: 18 000 pln/month - 23 000 pln/gross. Keep in mind that we are open to discussing a different salary based on your skills and experience.
• Growth & Learning: 40+ internal learning options, external conferences, mentorship, and year-round knowledge-sharing.
• Health & Well-being: Private health insurance, gym allowance and a wellness app.
• Celebration & Community: Team events, an overseas workation and plenty of ways to mark milestones together.