Senior Software Product Engineer

This range is provided by Fynity. Your actual pay will be based on your skills and experience — talk with your recruiter to learn more.

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Senior Software Product Engineer

London – 1 day a week onsite

🚀 Join a Fin Tech Powering the Future of Payments

Are you a seasoned individual contributor looking for a step up into a senior position within a high-performing team within the world of Banking/Payments? Are you passionate about high-throughput, real-time systems? This is your opportunity to help shape the core technology that powers instant payments for some of the world’s largest Banks.

We’re hiring on behalf of a leading payments consultancy, delivering cutting‑edge solutions that integrate seamlessly with bank infrastructure to enable real‑time, secure transactions across the globe.

• Design and build scalable, high‑availability systems processing millions of real‑time transactions
• Work with Java 17+, Spring Web Flux, AKKA, Kafka, and more
• Write clean, testable code using TDD and BDD
• Contribute to architectural decisions in a fast‑evolving codebase
• Collaborate within Agile teams (Kanban/Scrum)

We’re looking for engineers who are pragmatic, performance‑focused, and thrive on solving complex distributed systems problems.

• Strong hands‑on experience with Java 11+ (ideally Java 17)
• Solid knowledge of Reactive Programming (e.g., Spring Web Flux, AKKA)
• Experience with event‑driven architecture, real‑time messaging systems (Kafka, JMS)
• Familiarity with asynchronous request handling, scalability, and system resilience
• Agile mindset, with TDD/BDD and CI/CD experience

Bonus:
Background in Banking/Payments is helpful but not required – if you’ve built high‑performance, real‑time systems, we want to talk to you.

• 🧠 Work with cutting‑edge tech on globally impactful systems
• 🏡 Hybrid working – 1 day a week (or more if you’d like!)
• 🌍 Opportunity to collaborate with major global banks
• 🚀 Fast‑paced, product‑led environment where your voice matters

If you're a motivated Senior Software Product Engineer ready to tackle complex challenges and deliver meaningful change, hit apply – and shape the future of payments with us.

Mid‑Senior level

Full‑time

Engineering, Information Technology, and Other

Software Development, Financial Services, and IT Services and IT Consulting

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