Software Engineer (Java) - Unified Platform

Adyen; Amsterdam; On-site; EUR 85,000 - 120,000; Full time

Job summary

Adyen is hiring a Software Engineer (Java) for the Unified Platform in Amsterdam. You will work on a distributed backend that unifies accounting, billing, and pricing with scalable APIs and tooling.

You’ll contribute to high‑quality code, improve platform robustness, and ship features used by merchants worldwide. The role requires 5+ years in software development, strong Java skills, experience with REST/Web services, and proficiency in English.

Qualifications

• 5+ years of software development experience in a fast-paced tech environment.
• Experience with large scale distributed systems and backend services.
• Full professional proficiency in English.
• Ability to work cross-functionally with Data Science, Frontend and Product teams.

Responsibilities

• Work on complex technical projects from requirements analysis through design, implementation, testing and launch into production.
• Be hands-on and contribute to the implementation.
• Identify and improve parts of the platform to make it more robust and scalable.
• Bring your own point of view on best engineering practices.
• Your code will be used at scale and you are expected to think in that mindset when building features.
• We launch fast and iterate often with live functionalities impacting merchants.

Skills

Java backend

Distributed systems

English proficiency

Cross-functional collaboration

Tools

Java

Web Services

REST APIs

Webhooks

SQL

PostgreSQL

Job description

Software Engineer (Java) - Unified Platform

This is Adyen

Adyen provides payments, data, and financial products in a single solution for customers like Facebook, 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. The people of Adyen 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.

Unified Platform

The Unified Platform is at the heart of Adyen’s infrastructure, bringing together accounting, reporting, billing, pricing, reconciliation, and configuration into one streamlined experience. It enables us to stay agile and innovative while running a scalable, efficient business. As part of this initiative, we’re rethinking five core product areas:

• Platform experience – Creating a unified and intuitive backend experience across Adyen products


• Accounting systems – Defining a cohesive and high‑performing financial architecture


• Reporting & reconciliation – Making financial data more accurate, accessible, and satisfying for customers and regulators


• Billing & pricing infrastructure – Simplifying pricing and automating invoicing at scale


• Observability & tooling – Strengthening visibility and control of money movement through advanced tooling

We’re hiring Software Engineers at both Mid and Senior levels, and have several teams actively looking for new colleagues. While all roles share a strong technical foundation, each team brings a unique focus in scaling our unified platform, We'll explore the best team fit together throughout the interview process.

What you’ll do:

• Work on complex technical projects from requirements analysis through design, implementation, testing and launch into production.


• Be hands‑on and contribute to the implementation.


• Identify and improve parts of the platform to make it more robust and scalable.


• Bring your own point of view on best engineering practices.


• Your code will be used at scale and you are expected to think in that mindset when building features.


• We launch fast and iterate often. Concretely, this means that within your first few weeks, you will bring live functionalities that impact many merchants and shoppers.


• Build APIs and tooling according to quality principles such as performance and code quality.


• Collaborate across teams and time zones to get projects over the finish line.

Who you are:

• Familiar with complex large scale distributed systems.


• You have experience with Java, Web Services, REST Apis, Webhooks and SQL/PostgreSql.


• You have a good understanding of Software Engineering practices and interest in product knowledge.


• You enjoy working in a cross-functional team with roles like Data Science, Frontend, and Product.


• You value involving other people to hear different perspectives.


• You have an experimental mindset with a launch fast and iterate mentality.


• 5+ years of experience in software development industry in a fast paced tech environment


• Full professional proficiency in English


• 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.

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?

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.

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.