Senior Java Developer

V-34939

£95,000 - £110,000 Per Annum

Full Time

Permanent

Wimbledon, Greater London

IT

Posted 3 days ago

Expires In 26 Days

Job Description

Senior Software Engineer – Real-Time Systems | £95k - £115k + 20% Bonus
 
Location: London (Hybrid, 1-2 days per week)
 
Are you a highly experienced Software Engineer looking to take on a senior hands-on role while mentoring the next generation of top talent? Do you want to work on high-performance, real-time systems that process millions of transactions in milliseconds?
This is your opportunity to join a leading payments technology consultancy, working with some of the world’s largest financial institutions to redefine the future of real-time payments.
This company is setting the bar high, so rest assured, you will be working alongside some of the industries most talented Developers and Engineers.
 
The Role
As a Senior Software Engineer, you’ll be at the forefront of building asynchronous, event-driven systems using Java 17+, Spring WebFlux, AKKA, Kafka, and more. You’ll be working fully hands-on in a high-volume, low-latency environment, contributing to architecture and design, while also mentoring and guiding other engineers to raise the technical bar across the team.
  • Design and develop high-performance, scalable applications for real-time payments.
  • Lead technical discussions and drive best practices in TDD & BDD methodologies.
  • Optimise applications for high availability, resilience, and scalability.
  • Mentor and support mid-level and junior engineers, fostering a collaborative engineering culture.
  • Work in a highly agile Kanban/Scrum environment, contributing to continuous improvement.
 
What We’re Looking For:
  • Expert-level experience in Java 11+ (ideally Java 17) and Reactive Programming (Spring WebFlux, AKKA).
  • Strong knowledge of asynchronous request handling and distributed systems.
  • Proven experience with event-driven architectures and real-time messaging (Kafka, JMS).
  • A strong advocate for Agile methodologies (TDD, BDD) and CI/CD best practices.
  • Mentorship experience, helping to upskill and guide engineers within the team.
  • Experience building high-performance, mission-critical systems (Payments, Banking, or any real-time transactional systems).
  • Excellent soft skills, you’ll be working in a collaborative team with stakeholders from across the business.
Not from a Banking/Payments background? If you’ve worked on complex real-time systems in other industries, we still want to hear from you!
 
What’s in It for You?
  • £95k - £115k salary (depending on experience)
  • 20% bonus (based on both company and personal performance)
  • Work with cutting-edge technology in a high-impact role
  • Shape the future of payments at a global scale
  • Flexible hybrid working (London office, 1-2 days per week)
 
Ready to Take a senior role in a High-Performance Engineering Team?
If you're a senior engineer who wants to stay hands-on while mentoring others, this is your chance to work on mission-critical financial systems and drive real innovation.
Apply now and be part of the next evolution in real-time payments technology! 

If you are interested please apply ASAP. The People Network is an employment agency and will respond to all applicants within three - five working days. If you do not hear within these timescales please feel free to get in touch.