> Markdown version of [/jobs/ext/4694411-senior-software-engineer-java-card-payments](https://www.wearedevelopers.com/jobs/ext/4694411-senior-software-engineer-java-card-payments). 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). --- # Senior Software Engineer (Java) - Card Payments - **Company:** ADYEN INC. - **Location:** Chicago, IL, United States - **Experience:** Expert - **Salary:** $180,000 - $243,000 - **Contract:** Permanent contract - **Skills:** Java (Programming Language), Relational Databases, Database Models, Distributed Systems, PostgreSQL, Software Architecture, Queueing Systems, Simple Object Access Protocol (SOAP), Web Services, Restful APIs - **Published:** November 12, 2026 - **Apply:** https://www.adzuna.com/details/5961568401 ## About the Role * You have at least 8 years of professional experience as an engineer and are currently working as a Senior Software Engineer or at a similar level * You have great communication skills and the ability to articulate complex technical concepts in front of different stakeholders * You are flexible, a team player, someone with an eye for detail * Familiar with complex large scale distributed systems * Open to some domestic and international travel Required technical qualifications * Demonstrated knowledge of building Java based web services (RESTful, SOAP) * Experienced in designing performant database models in PostgreSQL or other relational databases * Knowledgeable of various software architecture paradigms such as event-driven or message queueing systems ## Description The Card Payments Airlines team is dedicated to processing high-volume transactions for our global airline partners via major card networks like Visa, MasterCard, and American Express. This team is pioneering the next generation of payment solutions tailored for the unique demands of the airline industry. Our systems are mission-critical, handling millions of transactions daily. As a Senior Software Engineer, you will be responsible for leading the design and architecture of the industry's most scalable and reliable airline processing platform. This senior role also involves coaching and guiding team members and collaborating closely with product management to define, scope, and deliver on our merchant-facing roadmap. What you'll do * Bring your own point of view on best engineering practices. * Collaborate across teams and time zones to get projects over the finish line. * Lead complex technical projects from requirements analysis through design, implementation, testing and launch into production. * Be hands on and contribute to the implementation, but at the same time offer technical guidance and mentoring to other engineers. * Identify and improve parts of the platform to make it more robust and scalable. * 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.