> Markdown version of [/jobs/ext/3656276-stackit-platform-services-mailout-software-engineer](https://www.wearedevelopers.com/jobs/ext/3656276-stackit-platform-services-mailout-software-engineer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Stackit Platform Services - Mailout - Software Engineer - **Company:** Jobrapido - **Location:** Barcelona, Spain - **Contract:** Permanent contract - **Skills:** Continuous Integration, Cloud Services, Software Engineering, Kubernetes, Restful APIs, Terraform, Docker - **Published:** October 9, 2026 - **Apply:** https://www.buscojobs.com.es/stackit-platform-services-mailout-software-engineer-m-f-d-en-barcelona-ID-374953692 ## About the Role Experience with Kubernetes; familiarity with Operators, CRDs, multi-tenant architectures xkdbapo Comfort in modern cloud environments Proficient with Docker, ArgoCD, Helm, or Terraform Strong emphasis on Testing, CI/CD, and Monitoring Team player in an agile setup who takes responsibility teamwork knowledge sharing responsibility Go Kubernetes Operators ## Description OverviewLa experiencia que se espera de los solicitantes, así como las habilidades y cualificaciones adicionales necesarias para este trabajo, se enumeran a continuación.Join Schwarz Digits to build a data-sovereign cloud email service based on KumoMTA.You will create scalable Go backends, REST APIs, and Kubernetes Operators to automate the service lifecycle.You'll own design, implementation and operation in an agile product team.This role blends agility with security to enable reliable, scalable cloud solutions that support Europe's digital sovereignty.ResponsabilidadesDevelop a Cloud Service based on KumoMTA for flexible, scalable, data-sovereign transactional email in the cloudBuild scalable backend services in GoDevelop REST APIs with focus on availability and stabilityCreate Kubernetes Operators to automate the Cloud Service lifecycleOwn design, implementation and operation: You Build It - You Run ItCollaborate with engineers in an agile product team and stakeholdersRequisitos principalesExperience in software development with Go, ideally at scaleExperience with Kubernetes; familiarity with Operators, CRDs, multi-tenant architectures xkdbapoComfort in modern cloud environmentsProficient with Docker, ArgoCD, Helm, or TerraformStrong emphasis on Testing, CI/CD, and MonitoringTeam player in an agile setup who takes responsibilityteamworkknowledge sharingresponsibilityGoKubernetesOperators