Software Engineer H/F

About the Role

We are looking for a motivated Software Engineer to join the team building our Kubernetes-as-a-Service (KaaS) platform, which enables customers to provision and manage production-grade Kubernetes clusters with high automation, observability, and security. You will develop and maintain features of the orchestration platform and its in-cluster components, alongside senior engineers who will support your ramp-up on Kubernetes internals and cloud-native development. This role is designed as a learning path: you will start on well-scoped features and progressively take ownership of larger components.

Key Responsibilities

Develop, test, and maintain features and bug fixes of our Kubernetes orchestration platform (written in Python and Go), within a scope defined with your tech lead.

Contribute to in-cluster components (controllers/operators, CRDs, Helm charts) under the guidance of senior engineers.

Write and maintain unit, integration, and end-to-end tests, and help keep our CI/CD pipelines green.

Automate recurring tasks of the cluster lifecycle (deployment, upgrades, configuration) and improve our internal tooling.

Participate in code reviews, technical discussions, and RFCs — asking questions is part of the job.

Write and update technical documentation for the features you deliver.

Investigate and fix bugs escalated to the team, at code level: reproduce the issue, find the root cause, write the fix and the regression test — with support from experienced engineers.

Grow your expertise in the Kubernetes and CNCF ecosystem, and share your findings with the team.

Required Skills & Experience

0 to 3 years of professional software engineering experience — internships, apprenticeships, and personal or open-source projects count.

A degree in computer science or equivalent practical experience.

Working knowledge of Python or Golang — willingness to become proficient in both.

First hands-on experience with containers and Kubernetes (Docker/containerd, Pods, Services, Deployments, ConfigMaps) as a user of the platform.

Comfortable with Linux, the command line, and Git-based workflows.

Basic understanding of networking (TCP/IP, DNS, HTTP, TLS) and of REST APIs.

Awareness of testing and CI/CD practices.

Curiosity, rigour, and the ability to learn fast in a complex technical environment.

Good communication skills and a taste for agile, remote, or cross-functional teamwork.

Professional working proficiency in English (written and spoken).

Nice to have

Exposure to Kubernetes cloud offers (AWS EKS, GCP GKE, Scaleway Kapsule or OVH Kubernetes service).

First use of Infrastructure as Code tools (Terraform, Ansible) or of Helm.

Notions of observability (Prometheus, Grafana) or of the Kubernetes security model (RBAC, network policies).

Experience writing a controller or operator, even as a side project.

Contributions to open-source projects.

Interest in Rust, Linux internals, or system-level programming.