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- Tasks: Lead a high-performing team to build real-time payment systems using modern Java technologies.
- Company: Leading payments consultancy transforming banking technology.
- Benefits: Competitive salary, 20% bonus, hybrid working, and impactful projects.
- Why this job: Shape the future of payments while collaborating with major global banks.
- Qualifications: Strong Java experience and knowledge of reactive programming required.
- Other info: Fast-paced environment where your ideas truly matter.
The predicted salary is between 80000 - 120000 £ per year.
London – 1 day a week onsite
Are you a highly experienced individual contributor looking for a step up into a senior position in 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.
What You’ll Be Doing
- You’ll be the focal point of a high-performing engineering team building asynchronous, event-driven systems using modern Java technologies, whilst working closely with some of the largest banks across Europe.
- Design and build scalable, high-availability systems processing millions of real-time transactions.
- Work with Java 17+, Spring WebFlux, 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).
What You Bring
- 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 WebFlux, 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.
What’s In It for You
- £95,000 – £115,000 base salary (DOE).
- 20% bonus.
- 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 Engineer ready to tackle complex challenges and deliver meaningful change, hit apply – and shape the future of payments with us.
Senior Software Engineer in London employer: Fynity
Contact Detail:
Fynity Recruiting Team
StudySmarter Expert Advice 🤫
We think this is how you could land Senior Software Engineer in London
✨Tip Number 1
Network like a pro! Reach out to your connections in the banking and payments sector. Attend meetups or webinars where you can chat with industry folks. You never know who might have the inside scoop on job openings!
✨Tip Number 2
Show off your skills! Create a portfolio showcasing your projects, especially those involving Java, Spring WebFlux, or Kafka. Having tangible examples of your work can really set you apart during interviews.
✨Tip Number 3
Prepare for technical interviews by brushing up on your coding skills. Practice common algorithms and system design questions. We recommend using platforms like LeetCode or HackerRank to get in the zone!
✨Tip Number 4
Don’t forget to apply through our website! It’s the best way to ensure your application gets seen. Plus, we love seeing candidates who are proactive about their job search!
We think you need these skills to ace Senior Software Engineer in London
Some tips for your application 🫡
Tailor Your CV: Make sure your CV reflects the skills and experiences that match the job description. Highlight your hands-on experience with Java, Reactive Programming, and any relevant projects you've worked on. We want to see how you can contribute to our high-performing team!
Craft a Compelling Cover Letter: Your cover letter is your chance to shine! Use it to explain why you're passionate about real-time systems and how your background aligns with our needs. Be genuine and let us know what excites you about this opportunity at StudySmarter.
Showcase Your Problem-Solving Skills: In your application, don’t just list your technical skills; share examples of how you've tackled complex problems in distributed systems. We love seeing how you think and approach challenges, so give us the good stuff!
Apply Through Our Website: We encourage you to apply directly through our website for a smoother process. It helps us keep track of your application and ensures you get the attention you deserve. Plus, it’s super easy – just a few clicks and you’re done!
How to prepare for a job interview at Fynity
✨Know Your Tech Inside Out
Make sure you’re well-versed in the technologies mentioned in the job description, especially Java 17+, Spring WebFlux, and Kafka. Brush up on your knowledge of asynchronous programming and event-driven architecture, as these will likely come up during technical discussions.
✨Showcase Your Problem-Solving Skills
Prepare to discuss specific examples where you've tackled complex distributed systems problems. Use the STAR method (Situation, Task, Action, Result) to structure your answers, highlighting your pragmatic approach and performance-focused mindset.
✨Familiarise Yourself with Agile Practices
Since the role involves working within Agile teams, be ready to talk about your experience with Kanban or Scrum. Share how you’ve contributed to TDD/BDD processes and CI/CD pipelines, as this will demonstrate your adaptability and collaborative spirit.
✨Understand the Banking/Payments Landscape
Even if you don’t have direct experience in banking or payments, do some research on the industry. Familiarise yourself with current trends and challenges in real-time transactions, as this will show your genuine interest in the role and help you connect with the interviewers.
