{"id":3007085,"url":"https://alion.io/job/ionos-working-student-fmd-backend-developer-java","title":"Working Student (f/m/d) - Backend Developer Java","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":77,"open_postings":11,"ghost_share":0,"stale_share":0.909,"repost_share":0,"time_to_fill_p50_days":29,"computed_at":"2026-10-26T05:57:25Z"}},"role":"Backend","role_family":"Backend","seniority":"intern","employment_type":"part_time","work_mode":"hybrid","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Regensburg, Germany"],"countries":["DE"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":null,"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"AI Agents","optional":false},{"name":"Apache Kafka","optional":false},{"name":"CI/CD","optional":false},{"name":"DNS","optional":false},{"name":"Docker","optional":false},{"name":"ElasticSearch","optional":false},{"name":"Git","optional":false},{"name":"GitLab","optional":false},{"name":"Java","optional":false},{"name":"Kubernetes","optional":false},{"name":"PHP","optional":false},{"name":"Rest API","optional":false},{"name":"Spring Boot","optional":false}],"status":"live","first_seen_at":"2026-10-21T09:27:22Z","employer_posted_date":"2026-10-21","last_verified_at":"2026-10-26T05:41:58Z","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.\nInterNetX is part of the IONOS Group SE and has been developing innovative solutions for domains, hosting, and encryption since 1998. As an Internet Service Provider with approximately 10 million managed domains, InterNetX is one of the top providers in the market. The heart of domain management is AutoDNS, supported by a distributed landscape of microservices, interfaces to registries, and specialized business systems operating in a 24/7 high-availability environment. To reinforce our agile development team at the Regensburg location, we are looking for a dedicated individual to actively contribute to AutoDNS - either in backend, frontend, or both areas.\nTasks\nDevelop and expand scalable microservices using Java and Spring Boot (partly PHP) in the areas of domain, server, and certificate management, as well as integrate external APIs.\nWrite unit and integration tests, review merge requests, and help shape CI/CD pipelines via GitLab and Kubernetes.\nAnalyze errors using logs and databases and sustainably resolve root causes.\nContribute to functional and technical enhancements (e.g., new regulatory requirements, billing, monitoring, and platform stability).\nActively use and shape modern AI tools in daily workflows (e.g., AI coding assistants for refactoring, testing, code reviews, and custom AI agents).\nQualifications\nCurrently enrolled in a degree program related to computer science (e.g., Computer Science, Business Informatics, Media Informatics) with the ability to work alongside your studies.\nBackend experience with Java and Spring / Spring Boot, confident handling of relational databases, and basic knowledge of REST/web services.\nBasic knowledge of Git and interest in working with GitLab, Docker, Kubernetes, and CI/CD.\nCuriosity about applying AI tools in daily development work and a critical mindset towards AI-generated results.\nStructured, goal-oriented, and independent working style, strong team spirit, and good communication skills.\nVery good written and spoken German and English skills.\nAdvantageous: Knowledge of Kafka, Elasticsearch, microservice architecture, database optimization, or initial experience with DNS/domain administration.\nWorking Hours: Flexible working hours according to the IONOS standard for working students, adapted to your lecture and examination schedules.\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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