Senior Software Engineer (Java) - Unified Platform
- Level
- Senior
Not stated in the posting: salary, work type, visa.
Open. First seen 2 October 2026.
About the role
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
.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.
Minimum qualifications:
- 6+ 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.
Adyen's standard text
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. We look forward to your application.
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.
What this role asks for
Particular to this role
PostgreSQL · REST
Rare in Adyen's other 168 open postings.
73% of this description is written for the role. The rest is Adyen's standard text, folded away below.
Compared with Adyen's other open jobs.
The team: Development HIRES STEADILY
This role is one of 39 open in Development. 9 were posted in the last 30 days and the oldest in May: a team that hires all year rather than one being built.
WHAT THE TEAM WORKS WITH, ACROSS ITS POSTINGS
Java (24 of 39), Machine Learning (10 of 39), PostgreSQL (9 of 39), SQL (9 of 39), LLM (7 of 39), Kafka (5 of 39), Kubernetes (5 of 39)
OTHER ROLES ON THIS TEAM
- Staff Engineer - Data Foundations posted Oct 28
- Team Lead - Software Engineer posted Oct 23
- Engineering Manager – Identity & Verification Services posted Oct 22
- Engineering Manager - Financial Products posted Oct 20
- Senior Machine Learning Engineer - AML Tech posted Oct 16
- Senior Machine Learning Engineer posted Oct 16
- Engineering Manager - Android posted Oct 12
- Head of Engineering - Financial Data Experience posted Oct 9
- Machine Learning Engineering Manager, Credit & Underwriting posted Oct 5
- Software Engineer II (Kotlin) - Core Experience posted Sep 25
- GenAI Platform Engineer - Madrid OR Amsterdam posted Sep 22
- Staff Machine Learning Engineer, Financial Products posted Sep 15
- Engineering Manager, Machine Learning - Personalize Intelligence posted Aug 31
- Java Engineer in Java Application Core Components team posted Aug 26
- Engineering Manager - Issuing posted Aug 24
- Staff Engineer - Payments (Mobile & Terminal Experiences) posted Aug 24
- Engineering Manager - Identity and Access Management posted Aug 19
- Staff Engineer - Banking Products posted Aug 17
- Senior Software Engineer (Java) - Banking Accounts posted Aug 14
- Member of Technical Staff posted Aug 11
- Engineering Manager - Debit Card Payments posted Aug 6
- Developer Relations Engineer posted Aug 3
- Staff Engineer - Intelligent Customer Experiences posted Jul 30
- Staff Software Engineer - Merchant Fraud Prevention posted Jul 28
- Engineering Leader - Payments APAC posted Jun 8
- Engineering Lead, Regional Payments posted Jun 3
- Senior AI Research Engineer posted Jun 3
- Staff Engineer - Customer Interfaces posted May 18
- Senior Machine Learning Scientist posted Apr 29
- Senior Software Engineer - Lending posted Apr 24
- Engineering Manager, Capital posted Apr 1
- Staff Engineer - Financial Products posted Feb 3
- Staff Software Engineer - Money Movement posted Nov 26
- Java Software Engineer - Payments posted Oct 31
- Staff Engineer - Financial Products posted Aug 5
- Java Engineer (Affirmative Action for Women) posted Aug 1
- Software Engineer (Java) posted Aug 1
- Java Software Engineer - CX posted May 15
From the team and dates on Adyen's own job board.
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