Site Reliability Engineer (m/f/d)

About Codesphere Codesphere is a Virtual Cloud Provider from Germany building the future of sovereign cloud infrastructure. Our platform gives enterprises and governments full sovereignty without giving up modern cloud capability – a vision recently validated by a series of multi-million European government tenders. Since our founding in Karlsruhe in 2020, we’ve expanded into an international team of 60+ experts. Based in Karlsruhe and Munich and backed by top-tier investors, we are chasing a bold vision. We’re scaling fast and would love for you to join us and grow alongside us 🚀 What you'll drive You define and enforce SLOs, SLIs, and SLAs across production You monitor system health, plan capacity, and automate deployments, patching, and infrastructure provisioning You diagnose and resolve production incidents fast – including 24/7 on-call participation You lead post-mortems and turn findings into prevention; maintain runbooks and escalation procedures You manage cloud infrastructure via IaC and own CI/CD pipeline design and maintenance You drive scalability, fault tolerance, disaster recovery, and security compliance You partner with Dev teams on production readiness, Shift Left practices, and error budget management What makes you a great fit Proven experience in an SRE, DevOps, or platform engineering role with hands-on production ownership Strong knowledge of Kubernetes, Terraform, and Ansible Familiarity with Ceph or comparable distributed storage systems Experience with SLOs, SLIs, error budgets, and CI/CD pipeline design Degree in a relevant field or comparable qualification Calm, structured, and fast under pressure – strong debugging and incident response skills Good communicator, able to translate operational concerns into guidance for Dev teams Go development experience is a plus What's in it for you Employee equity participation – participate in Codesphere's growth 30+ vacation days – including Christmas Eve and New Year's Eve, adding up to 32 days per year Meal allowance – up to 15 digital meal vouchers per month, worth up to €7.67 each Flexibility – hybrid work setup with mobile work options and flexibility around core hours Steep learning curve – fast-moving environment, real ownership, and a front-row seat to scaling a company Job-Rad – lease a bike through us, tax-free Gym access – stay active on site (Karlsruhe office only) Employee events – from team offsites to regular get-togethers Company pension scheme – company-supported pension to set you up for later Great public transport links – both offices are within walking distance of tram and metro stops