Software Engineer (Full-Stack)

Adyen; Amsterdam; Hybrid; EUR 70,000 - 90,000; Full time

Job summary

Adyen in Amsterdam is seeking a Fullstack Engineer for the Merchant Fraud Prevention group to build fraud detection features across frontend and backend. You will work with product managers, designers and data teams to turn requirements into merchant-facing interfaces and services.

You will deliver end-to-end features, write clean code, and help improve the fraud prevention platform while ensuring accessibility and scalability for a global customer base.

Qualifications

• Experience in fullstack environments with frontend and backend API layers.
• Designing and using component libraries and design systems.
• Strong testing practices and CI/CD fundamentals.
• Ability to write performant SQL queries and handle migrations.

Responsibilities

• Design, build, and deploy frontend features for fraud prevention.
• Work across the full stack, exposing APIs for frontend consumption.
• Design, implement and maintain component libraries as part of the design system.

Skills

Fullstack experience

Frontend development

Backend API design

Design systems

Testing (unit/integration/e2e)

CI/CD pipelines

SQL queries

Tools

Java

Job description

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. At Adyen, everything we do is engineered for ambition.

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.

About Our Team

As a Fullstack Engineer in the Merchant Fraud Prevention group, you will build and maintain fraud detection and mitigation features across both frontend and backend systems. Working alongside product managers, designers, and data teams, you will turn product requirements into merchant-facing interfaces and backend services. You will deliver end-to-end features, write clean code across the full stack, and help improve the overall fraud prevention platform.

What You'll Do:

• Design, build, and deploy frontend features across the Merchant Fraud Prevention group, including risk profile configuration, rule builders, analytics dashboards and case management tools.
• Work across the full stack, with backend work focused on small features, bug fixes, and implementing and exposing APIs for frontend consumption.
• Design, implement and maintain component libraries as part of a comprehensive design system.
• Ensure web applications meet accessibility standards and support a global customer base providing the best possible user experience.

Who You Are:

• Experience in fullstack environments, including reading and contributing to backend API layers and writing performant SQL queries; familiarity with Java or other statically-typed backend languages, and with database schema changes, including larger migrations requiring team alignment, is a plus.
• Expertise in designing and using component libraries, including defining and implementing design systems.
• Working experience with micro-frontend architectures and building highly scalable frontend solutions.
• Strong understanding of Software Engineering fundamentals, including testing practices (unit, integration, and end-to-end), CI/CD pipelines, and an interest in building reliable, maintainable systems

Our Diversity, Equity and Inclusion commitments

Our unique approach is a product of our diverse perspectives. This diversity of backgrounds and cultures is essential in helping us maintain our momentum. Our business and technical challenges are unique, and we need as many different voices as possible to join us in solving them - voices like yours. No matter who you are or where you're from, we welcome you to be your true self at Adyen.

Studies show that women and members of underrepresented communities apply for jobs only if they meet 100% of the qualifications. Does this sound like you? If so, Adyen encourages you to reconsider and apply.

What's next?

Ensuring a smooth and enjoyable candidate experience is critical for us. We aim to get back to you regarding your application within 5 business days. Our interview process tends to take about 4 weeks to complete, but may fluctuate depending on the role. Learn more about our hiring process here . Don't be afraid to let us know if you need more flexibility.

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.

The way we work is guided by the eight principles of the Adyen Formula. Learn more here.

Our engineers are building the first financial technology platform that combines payments, data, and financial services. We're looking for more talented problem solvers to help us address a unique set of challenges.