Description
Join Milestone and build infrastructure that feels like a product

Impact & Purpose

If you enjoy solving complex systems challenges while creating simple user experiences, we’d love to hear from you.

We are building a cohesive platform experience that customers can install, upgrade, and operate with confidence without needing deep Kubernetes or Linux expertise.

Location:

We are looking for a Senior Kubernetes Engineer (Flexibility Linux Platform), based in Barcelona, Spain (hybrid mode of working).

Role Summary

As a Senior Kubernetes Engineer (Flexibility Linux Platform) you will design and build a turnkey on-prem platform used in on-premises, hybrid and air-gapped environments with deployment flexibility in mind.

You will focus on reliability, automation, lifecycle management, and operational simplicity turning Kubernetes-based infrastructure into a seamless product experience. This is a hands-on engineering role with strong technical ownership and influence on architecture, quality, and engineering standards.

What You Will Do:




- Design and evolve a production-grade software appliance
- Build reliable install, upgrade, rollback, and recovery workflows
- Create automation and guardrails that simplify operations
- Develop backend services and APIs (REST, gRPC, OpenAPI)
- Improve observability, resiliency, and operational safety
- Support air-gapped deployments and offline upgrades
- Collaborate with product, support, and customer-facing teams
- Help shape engineering practices and technical direction

What You Bring to the Team:

We are looking for a senior engineer with strong experience building complex backend, infrastructure, or distributed systems. If your background aligns with many of the areas below, we encourage you to apply.
- Strong software engineering experience in backend or systems development
- Experience working with Kubernetes and containerized environments
- Solid understanding of Linux systems and production operations
- Experi

📌 Senior Kubernetes Engineer (Barcelona)
🏢 Milestone Systems
📍 Barcelona