> Markdown version of [/jobs/ext/357800-software-engineer-i-java-authorisation-optimisation](https://www.wearedevelopers.com/jobs/ext/357800-software-engineer-i-java-authorisation-optimisation). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Software Engineer I (Java) -Authorisation Optimisation - **Company:** Adyen N.V. - **Location:** Amsterdam, Netherlands - **Experience:** Experienced - **Contract:** Internship / Graduate position - **Skills:** Clean Code Principles, Java (Programming Language), Code Review, Databases, Software Debugging, Software Design Patterns, Distributed Systems, Fraud Prevention and Detection, Software Engineering, Customer Identity Access Management - **Published:** June 11, 2026 - **Apply:** https://nl.indeed.com/viewjob?jk=ff25a1c9ae4a5070 ## About the Role * Experience: You have 2+ years of professional software engineering experience (outside of internships/university projects) where you have already put software principles into practice. * Tech Stack: You are proficient in Java and excited to and expand your skills in a large-scale professional setting. * Core Knowledge: You have a solid foundational understanding of databases, distributed systems, and scalability concepts. * Mindset: You're a proactive problem-solver with a curious mind and a willingness to ask questions. * Collaboration: You're a strong team player who enjoys collaborating and learning from others. * Engineering Quality: You have a keen interest in software development, clean code, and design patterns. If you already have a solid foundation in software engineering and are looking for a role where you can make a real difference, receive great mentorship, and accelerate your career within a critical financial domain, we encourage you to ! ## Description We're looking for a Software Engineer I to join our Financial Products Authorisation Optimisation team in Amsterdam. This team works on maximizing issuing authorization rates by approving legitimate transactions while minimizing fraud, as well as providing authentication services for the whole Financial Products solution. This is an exciting opportunity to contribute to high-impact projects, learn from experienced professionals, and grow your skills in a supportive, cross-functional setting. As a Software Engineer I on this team, you'll contribute to building and maintaining the real-time risk engine that evaluates issuing and banking transactions, our ACS (Access Control Server), and Strong Customer Authentication services. Your work will directly impact how our customers pay with their Adyen-issued cards and authenticate for their transactions. What You'll Do As a Software Engineer I on the team, you will: * Develop and implement new features for the services owned by the team. * Work closely with our Issuing and Banking teams. * Learn and influence our approach to fraud prevention and authorisation rate maximization. * Collaborate with experienced engineers to understand requirements, design solutions, and resolve technical challenges. * Participate in code reviews to ensure high-quality, maintainable, and secure software. * Contribute to the entire software development lifecycle, from design and implementation to testing and deployment. * Help troubleshoot and debug issues in our production systems. * best practices in software development, including testing, deployment, and monitoring. * Receive targeted mentorship and guidance from senior engineers, accelerating your learning and professional development. ## Related Videos - [Kubernetes and Microservices with Multi-Model Databases](https://www.wearedevelopers.com/videos/382-kubernetes-and-microservices-with-multi-model-databases) - [Are Code Reviews Worth It? Insights from 16 Years of Review Data](https://www.wearedevelopers.com/videos/1135-are-code-reviews-worth-it-insights-from-16-years-of-review-data) - [Using AI Without Losing Your Skills](https://www.wearedevelopers.com/videos/2045-using-ai-without-losing-your-skills) - [Navigating the Corporate Jungle: Life as a Developer in a large Company](https://www.wearedevelopers.com/videos/621-navigating-the-corporate-jungle-life-as-a-developer-in-a-large-company) - [Fault Tolerance and Consistency at Scale: Harnessing the Power of Distributed SQL Databases](https://www.wearedevelopers.com/videos/1146-fault-tolerance-and-consistency-at-scale-harnessing-the-power-of-distributed-sql-databases) - [Next Level Enterprise Architecture: Modular, Flexible, Scalable, Multichannel and AI-Ready?](https://www.wearedevelopers.com/videos/1017-next-level-enterprise-architecture-modular-flexible-scalable-multichannel-and-ai-ready) ## Related Articles - [How to Find Tech Jobs in Amsterdam](https://www.wearedevelopers.com/magazine/279-how-to-find-tech-jobs-in-amsterdam) - [How to land a developer job in Amsterdam](https://www.wearedevelopers.com/magazine/36-how-to-land-a-developer-job-in-amsterdam) - [Where to Find Entry-Level Software Engineering Jobs](https://www.wearedevelopers.com/magazine/397-where-to-find-entry-level-software-engineering-jobs) - [Software Developer Salary in The Netherlands [2023]](https://www.wearedevelopers.com/magazine/217-software-developer-salary-in-the-netherlands-2023) - [The 12 Best Jobs for Software Engineers](https://www.wearedevelopers.com/magazine/401-the-12-best-jobs-for-software-engineers) - [Where To Find Software Engineering Jobs](https://www.wearedevelopers.com/magazine/396-where-to-find-software-engineering-jobs)