At a Glance
- Tasks: Build high-performance payment systems with leading banks and cutting-edge tech.
- Company: Join a dynamic team in a product-led, engineering-first environment.
- Benefits: Competitive salary, 20% annual bonus, and hybrid working options.
- Other info: Collaborate with top engineers in an Agile environment for excellent career growth.
- Why this job: Make a global impact by developing real-time, event-driven systems.
- Qualifications: Strong Java experience and knowledge of asynchronous programming required.
The predicted salary is between 90000 - 115000 £ per year.
Are you a senior/lead hands-on Engineer who thrives in Payments environments? Do you have a background in building low-latency, high-throughput distributed systems where correctness, resilience, and performance really matter?
This is a great opportunity to work with some of the world's leading Banks on their real-time payments infrastructure. The ideal person will have a background working on SWIFT, ISO 2002, Open Banking, PSD2, BACS, CHAPS, etc.
What You’ll Be Doing
- You’ll work directly with some of the world's leading banks in their high-performing engineering teams, building asynchronous, message-driven systems designed for scale, resilience, and near-zero downtime.
- Design and implement high-throughput, low-latency systems processing millions of real-time payment events.
- Build event-driven architectures using modern Java and reactive frameworks.
- Work extensively with non-blocking I/O, asynchronous flows, back-pressure, and concurrency.
- Contribute to system and API design, focusing on scalability, fault tolerance, and observability.
- Collaborate closely with architects, engineers, and client teams across Europe.
- Operate in Agile environments (Scrum / Kanban) with a strong engineering culture.
Tech Stack (current & evolving):
- Java 17+, Spring WebFlux, Akka, MongoDB, Kafka, reactive streams, distributed messaging, cloud-native tooling.
What You Bring
- Strong hands-on experience with Java 11+ (ideally Java 17) in production environments.
- Deep understanding of asynchronous and reactive programming models.
- Proven experience with event-driven architectures and real-time messaging (Kafka, JMS, Akka, etc.).
- Solid grasp of distributed systems concepts: concurrency, idempotency, fault tolerance, and resilience.
- Experience building and testing production-grade systems using TDD/BDD and CI/CD pipelines.
- Comfortable working on complex, long-lived systems where performance and reliability are critical.
- NoSQL experience, ideally MongoDB.
Bonus (not essential):
- Experience in banking, payments, or financial systems, or if you’ve built real-time platforms at scale.
What’s In It for You
- £90,000 – £115,000 base salary (DOE).
- 20% annual bonus.
- Work on event-driven, real-time systems with global impact.
- Hybrid working – 1 day a week onsite (more if you prefer).
- Exposure to major international banks and payment networks.
- A product-led, engineering-first environment where technical decisions matter.
Digital Implementation Engineer in London employer: Fynity
Join a forward-thinking company that prioritises innovation and excellence in the Payments sector, offering a dynamic hybrid work environment in London. With a strong focus on employee growth, you will have the opportunity to collaborate with leading banks while working on cutting-edge technologies that drive real-time payment solutions. Enjoy competitive salaries, annual bonuses, and a culture that values technical expertise and impactful contributions.
StudySmarter Expert Advice🤫
We think this is how you could land Digital Implementation Engineer in London
✨Tip Number 1
Network like a pro! Attend industry meetups, webinars, or tech conferences related to payments and engineering. You never know who you might bump into – it could be your future boss!
✨Tip Number 2
Show off your skills! Create a portfolio showcasing your projects, especially those involving Java, asynchronous systems, or real-time messaging. This is your chance to demonstrate what you can bring to the table.
✨Tip Number 3
Prepare for interviews by brushing up on your knowledge of distributed systems and event-driven architectures. Be ready to discuss your past experiences and how they relate to the role – confidence is key!
✨Tip Number 4
Don’t forget to apply through our website! It’s the best way to ensure your application gets noticed. Plus, we love seeing candidates who are proactive about their job search.
We think you need these skills to ace Digital Implementation 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, asynchronous programming, and any relevant projects you've worked on in payments environments.
Craft a Compelling Cover Letter:Use your cover letter to tell us why you're passionate about working in payments and how your background aligns with our needs. Share specific examples of your work with event-driven architectures or real-time systems to grab our attention.
Showcase Your Problem-Solving Skills:In your application, don’t just list your skills; demonstrate how you've used them to solve complex problems. We love engineers who can think critically and adapt to challenges, especially in high-pressure environments.
Apply Through Our Website:We encourage you to apply directly through our website. It’s the best way for us to receive your application and ensures you’re considered for the role. Plus, it shows us you’re keen on joining our team!
How to prepare for a job interview at Fynity
✨Know Your Tech Stack
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 architectures, as these will likely come up during technical discussions.
✨Showcase Your Experience
Prepare to discuss specific projects where you've built low-latency, high-throughput systems. Be ready to explain your role, the challenges you faced, and how you ensured performance and resilience in your solutions. Real-world examples will make your experience stand out.
✨Understand the Payments Landscape
Familiarise yourself with key concepts in payments technology, such as SWIFT, ISO 20022, and PSD2. Being able to speak knowledgeably about these topics will demonstrate your genuine interest in the field and your readiness to contribute to their projects.
✨Emphasise Collaboration Skills
Since the role involves working closely with architects and client teams, be prepared to discuss your experience in Agile environments and how you’ve successfully collaborated with others. Highlight any instances where your teamwork led to successful project outcomes.
