Unstoppable starts with people. The future of payments is being built today, and at Paymentology, we are looking for people who want to help shape it. We power card issuing for leading banks, fintechs and digital brands across the globe, and as we continue to grow, we are looking for curious, ambitious people who thrive on solving complex challenges, embrace innovation and want to make a tangible impact at general scale.

Our Engineering culture values autonomy, excellence, ownership, and curiosity. We encourage engineers to lead solutions end-to-end, mentor others, and continuously improve how we build and operate software. If you’re excited by solving complex global payments challenges and enjoy working with smart, kind, mission-driven people — this is the place for you.

What you get to do:

We’re looking for a Senior Software Engineer to design, build, and scale Java backend services that power our global payments infrastructure. You’ll lead end-to-end delivery, contribute to technical strategy, and help raise the engineering bar across the organisation.





Lead the design and development of backend services, distributed systems, and APIs.
Own features end-to-end (architecture, coding, testing, observability, and deployment).
Write clean, maintainable, well-tested code, following engineering best practices and test-driven development.
Break down complex technical work into manageable chunks
Work in a collaborative, cross functional, agile team environment
Mentor associate and mid-level engineers, fostering a culture of technical excellence
Identify, document, and deliver technical improvements (performance, reliability, scalability).
Participate in incident response and support rotations
This role includes participation in an on-call rotation, with on-call duties scheduled for one week out of every five weeks.

Requirements:

Experience:

Significant commercial experience with modern Java 15 (We’re currently moving to 21. As a guide, multiple projects with 5+ years

📌 Senior Software Engineer (Madrid)
🏢 Paymentology
📍 Madrid