{"id":3533127,"url":"https://alion.io/job/ionos-senior-software-engineer-fmd-managed-nfs","title":"Senior Software Engineer (f/m/d) Managed NFS","company":{"id":51740,"name":"IONOS","domain":"ionos.com","url":"https://alion.io/company/ionos","size_band":"51-200","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Greenhouse","truth_index":{"grade":"B","score":82,"open_postings":11,"ghost_share":0,"stale_share":0.727,"repost_share":0,"time_to_fill_p50_days":29,"computed_at":"2026-11-02T06:13:15Z"}},"role":"Backend","role_family":"Backend","seniority":"senior","employment_type":null,"work_mode":"hybrid","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Berlin, Germany","Karlsruhe, Germany"],"countries":["DE"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":68000,"max_usd":120000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":62},"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"ArgoCD","optional":false},{"name":"CI/CD","optional":false},{"name":"Claude","optional":false},{"name":"Docker","optional":false},{"name":"Git","optional":false},{"name":"GitOps","optional":false},{"name":"Grafana","optional":false},{"name":"Kubernetes","optional":false},{"name":"Linux","optional":false},{"name":"Prometheus","optional":false},{"name":"QEMU","optional":false}],"status":"live","first_seen_at":"2026-10-30T15:52:59Z","employer_posted_date":"2026-10-30","last_verified_at":"2026-11-02T15:17:36Z","board_verified":true,"closed_at":null,"days_open":3,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":3},"description":"About IONOS\nAt IONOS, we don't just manage servers - we shape the digital future for more than 6.2 million customers worldwide with our solutions. As Europe's leading hosting provider and a pioneer in independent cloud solutions, we are building next-generation infrastructure - from sovereign cloud architectures and high-performance GPU clusters to integrated AI automation tools.\nWhat drives us is digital sovereignty for Europe and real impact for small and medium-sized businesses (SMBs) as well as large enterprises. We work in agile teams, rely on transparent structures, and believe that excellence and innovation only emerge through true team spirit.\nReady for your next step? Become part of IONOS and grow with us.\nIONOS Cloud offers NFS as a managed service, and you develop and maintain it. The product is highly available and redundant, so customer data stays accessible even when a component fails. It runs on Kubernetes and is written mostly in Go.\nTasks\nDevelop and maintain the NFS product for IONOS Cloud.\nBuild and extend Kubernetes Operators that manage the product's lifecycle.\nDesign and implement features that keep the service highly available and redundant, including failover.\nImprove the product's reliability and replication.\nAnalyze and resolve complex issues in a highly available, distributed storage setup.\nMigrate from legacy components step by step, without breaking existing customers.\nQualifications\nExpert Go skills and several years of professional development experience.\nExperience developing Kubernetes Operators.\nSolid knowledge of NFS and SMB/CIFS, plus experience with ZFS and DRBD.\nExperience building highly available, redundant systems, including replication, failover and distributed-systems fundamentals (idempotency, retries, consistency, failure handling).\nDeep knowledge of Linux, including the kernel, and experience with LinuxKit and VMs (libvirt, QEMU, cloud-init).\nFluency with Git, Docker, shell and CI/CD, including GitOps workflows (for example ArgoCD).\nExperience with observability tools (Prometheus, Grafana) to monitor availability and troubleshoot issues.\nDaily use of AI coding assistants (for example Claude) in your development work.\nStrong analytical and problem-solving skills and a structured, independent way of working in a team.\nWillingness to undergo a security clearance (SÜ-2).\nBenefits\nHybrid working model.\nFlexible working hours through trust-based working hours.\nAt some locations a subsidized canteen and various free drinks.\nModern office space with very good transport connections.\nVarious employee discounts for activities and products.\nEmployee events such as summer and winter parties, as well as workshops.\nNumerous training and development opportunities.\nVarious health offers, such as sports and health courses.\nApplication Note\nWe value diversity and welcome all applications - 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