Senior Java Developer

Join to apply for the Senior Java Developer role at iO What You’ll Do Does code hold no secrets to you? Are you the go-to expert for your colleagues and do you love taking the lead by setting the right example? Become a Senior Java Consultant at iO and build exceptional applications for top brands like Bol, VodafoneZiggo, and Rabobank. As a Senior Java Consultant, you’ll be part of the in‑house teams of leading brands. With your deep knowledge and experience, you take the leading role in project teams and serve as the key point of contact for clients. They rely on your code, vision, and input as a senior developer. You elevate other team members to the next level by guiding, motivating, and inspiring them to excel. You ensure that projects are not only technically solid but also contribute maximally to your clients’ business objectives. From concept to impact: you’re involved in the entire journey. Your Team & Development You don’t just work at the client site, but you stay closely connected with your iO colleagues. At least once a week, you come together to catch up, share knowledge, and learn from each other. You’ll join a team of experts who will advance your career. At iO, you get both time and budget to develop yourself. Take courses, workshops, training sessions, and earn certifications. Or give presentations yourself, write blogs (check out our Techhub), and contribute to the Open Source community. We stay ahead by participating in numerous events, conferences, knowledge sessions, and high‑level meetups. Your Qualities And Skills As Senior Java Developer Minimum 6 years of work experience as a Java Developer Experience working at and with enterprise organisations Solid experience with Java and/or Kotlin, Spring Boot, REST, integration testing, and Microservices Database knowledge of Oracle, SQL, and/or NoSQL Knowledge of Google Cloud Platform (GCP) or Amazon Web Services (AWS). Kubernetes and Docker is a plus Experience with CI/CD, AI tooling, accessibility, NodeJS, or other back‑end languages/frameworks is a plus You enjoy coaching developers in their technical and soft skills and easily take the lead You speak fluent English This Makes You Strong You're more than a developer. You're a sparring partner for clients, a mentor for colleagues, and a thought leader in your field. You see opportunities where others see challenges, and you take initiative to capitalize on those opportunities. With your hands‑on mentality and sharp technical insight, you elevate projects to the next level. What’s in it for you 25 vacation days based on a 40‑hour work week Travel expenses & holiday pay: 8% holiday pay and mobility schemes that you can choose from, depending on your role and preference Good pension plan: you contribute 4% and iO supplements up to the full premium Hybrid working: you decide when and where you work together with your team, supporting a healthy work‑life balance Healthy snacks & lunch: healthy snacks available throughout the day and a varied lunch for a small fee at every iO campus Personal training budget: €3,000 per year to develop yourself through training, events, or courses Celebrating together: organised parties at your campus to celebrate milestones and achievements Seniority Level Mid‑Senior level Employment Type Full‑time Job Function Engineering and Information Technology Industries Technology, Information and Internet Referrals increase your chances of interviewing at iO by 2x Get notified about new Senior Java Software Engineer jobs in Utrecht, Utrecht, Netherlands. #J-18808-Ljbffr