Software Engineer II (Java) - Authorisation Optimization

Join Adyen as a Software Engineer II (Java) - Authorisation Optimization in Amsterdam.

This is Adyen

Adyen provides payments, data, and financial products in a single solution for customers like Meta, Uber, H&M, and Microsoft - making us the financial technology platform of choice.

For our teams, we create an environment with opportunities for our people to succeed, backed by the culture and support to ensure they are enabled to truly own their careers. We are motivated individuals who tackle unique technical challenges at scale and solve them as a team. Together, we deliver innovative and ethical solutions that help businesses achieve their ambitions faster.

Tokenization Core

The Tokenization team is the engine behind seamless recurring payments on the Adyen platform. We empower everything from one-click checkouts to global subscription services by securely storing and managing payment details. The services maintained by our team are critical - roughly 20% of all online payments at Adyen rely on our systems to be processed successfully.

Beyond core tokenization, we also build and maintain the foundation for key Adyen Uplift products like Network Tokenization and Account Updater. Our work directly contributes to higher authorization rates and a better payment experience for our merchants.

What You'll Do

As an engineer on our team, you'll have full ownership of the features you build, from initial design to deployment and live monitoring. You'll be a problem-solver shaping a core part of Adyen's platform.

• Design and build solutions for highly scalable and reliable distributed systems that are central to Adyen's success.
• Collaborate closely with your team, Product Managers, and other engineering teams across the Uplift and Payments teams to refine and implement your ideas.
• Take end-to-end ownership, seeing your work through the entire development lifecycle.
• Uphold our high standards for system health by implementing robust monitoring, defining SLOs, and creating effective alerting.

Who You Are

We're looking for a colleague who is passionate about building robust, large-scale systems and understands the importance of reliability.

• You have a strong foundation in Java, with experience building web services, REST APIs, and working with streaming data.
• You are comfortable with SQL/PostgreSQL and understand how to work with databases effectively.
• You have proven experience in building and maintaining highly scalable and reliable distributed systems.
• You embrace a culture of operational excellence and have a solid grasp of monitoring best practices, SLOs, and resilience patterns.
• You are someone who naturally takes ownership, seeking the autonomy to drive your work forward.
• Bonus points if you have deep expertise with PostgreSQL, previous experience working on payment flows or good understanding of reliability patterns

This role is based out of our Amsterdam office. We are an office-first company and value in-person collaboration; we do not offer remote-only roles.