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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior Software Engineer - **Company:** Paymentology Ver todas las vacantes - **Location:** Madrid, Spain (Remote available) - **Contract:** Permanent contract - **Skills:** Application Programming Interfaces (APIs), Amazon Web Services, Cloud Computing, Continuous Integration, Relational Databases, Distributed Systems, PostgreSQL, MySQL, Test-Driven Development (TDD), Backend, Event Driven Architecture, Containerization, Code Testing, Domain Driven Design, Microservices - **Published:** May 31, 2026 - **Apply:** https://www.opcionempleo.com/jobad/es7b3f10fcace29d9dd83f4f59efd2d8e2 ## About the Role * Significant commercial experience with modern Java 15 (We're currently moving to 21. As a guide, multiple projects with 5+ years of experience. Proven experience designing, building and maintaining distributed systems and microservices) * Deep understanding of Object-Orientated programming * Familiarity with event-driven architectures or Domain Driven Design. * Love to work using TDD * Strong grasp of relational databases (PostgreSQL, MySQL) and data modeling. * Solid understanding of cloud infrastructure (AWS preferred), containerisation, CI/CD, and Infrastructure-as-Code. * Nice to have, but not critical, experience in fintech, payments, or other high-throughput/regulated domains. * Most importantly, a desire to learn, grow and collaborate with an amazing team ## Description * Madrid * Permanente * Tiempo completo * Hace 10 horas * Solicite fácilmente At Paymentology, we're building the global payments platform of the future. Our mission is to empower banks, fintechs, and innovators with modern, scalable, cloud-first issuing and processing solutions. As a fully distributed organisation operating across 60+ countries, we move fast, think globally, and build technology that supports millions of transactions daily. 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., 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. What you can look forward to:: * 100% remote, globally distributed team * We value engineers that closely understand our customers and business * High-impact role supporting real-time global payments * Growth path toward Senior Engineer 2, Staff Engineer, or Engineering Manager * A diverse, mission-driven engineering culture ## Related Videos - [Migrating half a million users to a new payment service provider](https://www.wearedevelopers.com/videos/730-migrating-half-a-million-users-to-a-new-payment-service-provider) - [MySQL Protocol Features You Should Be Aware Of](https://www.wearedevelopers.com/videos/100267-mysql-protocol-features-you-should-be-aware-of) - [Developing the Backend with Stefan Lingler, CTO at Shpock](https://www.wearedevelopers.com/videos/100360-developing-the-backend-with-stefan-lingler-cto-at-shpock) - [Optimizing Discovery: PostgreSQL's Role in Transforming GetYourGuide's Search](https://www.wearedevelopers.com/videos/1647-optimizing-discovery-postgresql-s-role-in-transforming-getyourguide-s-search) - [Meet Your New BFF: Backend to Frontend without the Duct Tape](https://www.wearedevelopers.com/videos/682-meet-your-new-bff-backend-to-frontend-without-the-duct-tape) - [Flex your Energy: Building a Cloud-Native Platform for Renewable Energy Communities](https://www.wearedevelopers.com/videos/1990-flex-your-energy-building-a-cloud-native-platform-for-renewable-energy-communities) ## Related Articles - [Fully Remote Software Engineer Jobs](https://www.wearedevelopers.com/magazine/447-fully-remote-software-engineer-jobs) - [Top-Paying Tech Jobs (with Salaries)](https://www.wearedevelopers.com/magazine/372-top-paying-tech-jobs-with-salaries) - [The 12 Best Jobs for Software Engineers](https://www.wearedevelopers.com/magazine/401-the-12-best-jobs-for-software-engineers) - [Find a Developer Job: 12 Best Job Sites For Developers](https://www.wearedevelopers.com/magazine/165-find-a-developer-job-12-best-job-sites-for-developers) - [Highest Paying Tech Companies in Europe](https://www.wearedevelopers.com/magazine/162-highest-paying-tech-companies-in-europe) - [Are Software Engineer Wages Being Pushed Down? 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