{"id":176421,"url":"https://alion.io/job/idnow-senior-software-engineer-java-fmd","title":"Senior Software Engineer – Java (f/m/d)","company":{"id":63407,"name":"IDnow","domain":"idnow.io","url":"https://alion.io/company/idnow","size_band":"201-500","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Greenhouse","truth_index":{"grade":"B","score":77,"open_postings":5,"ghost_share":0,"stale_share":0.8,"repost_share":0.2,"time_to_fill_p50_days":50,"computed_at":"2026-10-16T05:45:00Z"}},"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":"explicit","locations":["Berlin, Germany","Munich, Germany"],"countries":["DE"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":65000,"max_usd":113000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":60},"experience_years_min":5,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Java","optional":false},{"name":"Agile","optional":true},{"name":"Apache Kafka","optional":true},{"name":"AWS","optional":true},{"name":"CI/CD","optional":true},{"name":"Docker","optional":true},{"name":"Git","optional":true},{"name":"JUnit","optional":true},{"name":"Kotlin","optional":true},{"name":"Kubernetes","optional":true},{"name":"Maven","optional":true},{"name":"Mockito","optional":true},{"name":"MySQL","optional":true},{"name":"PostgreSQL","optional":true},{"name":"RabbitMQ","optional":true},{"name":"Scrum","optional":true},{"name":"Spring Boot","optional":true}],"status":"live","first_seen_at":"2026-03-25T13:39:40Z","employer_posted_date":"2026-10-08","last_verified_at":"2026-10-17T01:16:26Z","board_verified":true,"closed_at":null,"days_open":205,"trust":{"level":"stale","repost_count":0,"flags":["stale"],"days_open":204},"description":"IDnow is aleader in digital identity and fraud prevention in Europe with a mission to transform trust into the most powerful asset in the digital world, empowering enterprises with AI-driven, SaaS-based identity solutions that deliver scalable security, adaptive compliance, and real-time fraud prevention. Through its broad portfolio of digital identity and fraud prevention solutions, IDnow establishes, maintains and enriches trust throughout the customer journey, ensuring businesses can confidently and securely operate while leveraging digital identity to drive growth, security and scalability.\nThe company has offices in Germany, United Kingdom, Romania and France, and is backed by renowned institutional investors, including Corsair Capital and Seventure Partners. Its portfolio of international clients spans a wide range of end markets including financial services, telecommunications, travel & mobility, gaming, and other industries.\nThis position is based in Germany, preferably Munich / Berlin (Hybrid office also available).\nAs a Senior Software Engineer - Java, you will play a key role in designing, building, and maintaining scalable, secure, and high-performance backend systems for our identity verification platform. Working in a cross-functional team, you will contribute to architecture decisions, mentor team members, and help shape the technical direction of our products that serve millions of users globally.\nKey Responsibilities\nDesign, develop, and maintain robust Java applications and microservices powering IDnow’s identity verification platform.\nContribute to architectural decisions and system design for scalable, secure, and maintainable solutions.\nWrite clean, efficient, and well-documented code following best practices and engineering standards.\nCollaborate closely with product managers, UX designers, DevOps, and QA engineers in a cross-functional setup.\nIdentify performance bottlenecks, debug complex issues, and optimize applications for high-volume transactions.\nStay updated with the latest technologies and contribute to technical innovation and continuous improvement.\nGuide and mentor junior developers, conduct code reviews, and share knowledge within the team.\nPreferred Experience\n5+ years of professional software development experience with a strong focus on Java.\nExpertise in Java EE and Spring / Spring Boot (or Play Framework).\nSolid understanding of JVM performance tuning and optimization.\nProficiency with relational databases (MySQL, PostgreSQL).\nStrong experience in RESTful API design and development.\nExperience with unit testing frameworks (JUnit, Mockito) and test-driven development (TDD).\nFamiliarity with CI/CD pipelines, Git, Maven, and Docker.\nExperience working in Agile/Scrum environments.\nStrong analytical and problem-solving skills with a collaborative, proactive mindset.\nBonus skills:\nFamiliarity with Kubernetes, AWS, or microservices architectures.\nExperience in security-conscious or compliance-heavy environments (e.g., FinTech, Identity, KYC).\nKnowledge of message brokers (Kafka, RabbitMQ) or event-driven systems.\nPerks & Benefits\nHealth & Wellbeing: Use your full access to the mental health platform nilo, including 1on1 sessions.\nWe valuepersonal and professional development: make full use of Udemy, our training platform with 24/7 access and unlimited content/course consumption incl. certification.\nWe make your remote work comfy: we provide support on equipment and offer flexible working hours.\nWe value collaboration & love to come together: regularonsite gatherings, internal initiatives and summer parties to connect outside of work.\nMay your family require your attention or other reasons apply: use the benefit of ourpaid specialleave days.\nEnjoy the possibility to combine work with a longer stay at your holiday destination or extend a weekend with ourWorkcation possibilities.\nIn addition to the perks & benefits above, we offer specific benefits that differ between our locations.\nIDnow applies the principles of non-discrimination and equality: We strive to establish, maintain, and promote an open and inclusive recruitment process and working environment by respecting the principles of equal opportunities. 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