{"id":3533125,"url":"https://alion.io/job/ionos-senior-software-engineer-fmd-block-storage-provisioning","title":"Senior Software Engineer (f/m/d) Block Storage Provisioning","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":"2026-11-03T05:54:40Z"}},"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":"2026-10-30T15:54:35Z","employer_posted_date":"2026-10-30","last_verified_at":"2026-11-04T00:36:25Z","board_verified":true,"closed_at":null,"days_open":4,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":4},"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 runs on highly available, redundant block storage that must be provisioned quickly, reliably and at scale. You own the software behind it and build on the Linux storage stack instead of reinventing it. Your focus is provisioning.\nTasks\nMaintain and improve our existing block storage provisioning\nDesign and develop the next generation of our storage provisioning\nAdd monitoring and alerting for the provisioning workflow to detect failures early\nMake provisioning robust against failures and safe to retry\nDesign and implement provisioning that keeps storage highly available and redundant, including failover\nAnalyze and resolve complex issues across the storage stack, from the Linux kernel up to the provisioning layer\nMigrate from legacy components step by step, without breaking existing users\nQualifications\nExpert Go skills and several years of professional development experience\nDeep knowledge of Linux, including the kernel, block storage, software RAID (MD), LVM and network block devices (NBD, RNBD)\nExperience with VMs (libvirt, QEMU, cloud-init), building VM images and developing Kubernetes Operators\nWorking knowledge of C, enough to read and debug low-level code\nFluency with Git, Docker, shell and CI/CD, including GitOps workflows (for example ArgoCD)\nExperience with observability tools (Prometheus, Grafana) to monitor provisioning and troubleshoot issues\nExperience building highly available, redundant systems, including replication, failover and distributed-systems fundamentals (idempotency, retries, consistency, failure handling)\nAffinity to cloud environments and to automating infrastructure provisioning\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\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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