Back End Developer - Data in London

Back End Developer - Data in London

London Full-Time 60000 - 80000 £ / year (est.) No working from home possible
Allegis Global Solutions

At a Glance

  • Tasks: Design and develop high-quality backend solutions for a global trading platform.
  • Company: Join a leading investment bank with a focus on innovation.
  • Benefits: Hybrid work model, competitive salary, and excellent career growth opportunities.
  • Other info: Collaborative international team culture with a focus on continuous learning.
  • Why this job: Work on cutting-edge technology in a fast-paced, impactful environment.
  • Qualifications: 7+ years in backend development, strong Java skills, and experience with microservices.

The predicted salary is between 60000 - 80000 £ per year.

Location: London, UK

Industry: Investment Banking

Work pattern: Hybrid (2/3 days onsite)

About the Role

We are looking for a Senior Backend Developer to join a global engineering team building a cutting-edge financial market trading platform. This role offers the opportunity to work on a high-performance, real-time system used for pricing, execution, and trade processing. You will collaborate with cross-functional teams across locations and play a key role in delivering scalable, low-latency solutions in a fast-moving environment.

Key Responsibilities

  • Design, develop, and deliver high-quality backend solutions from conception to production
  • Build and enhance real-time, event-driven applications
  • Collaborate with architects, product owners, and global engineering teams
  • Break down complex projects, drive delivery, and mentor junior developers
  • Ensure adherence to best practices in coding, design, and performance optimisation
  • Contribute to continuous improvement of development processes and technical roadmap

Tech Stack & Requirements

Core Skills

  • 7+ years of experience in backend development
  • Strong expertise in Java (Core Java, Spring Framework, Spring Boot, RxJava)
  • Experience building REST APIs & reactive web services
  • Strong knowledge of microservices architecture

Cloud & DevOps

  • Hands-on experience with Docker, Kubernetes, OpenShift, Helm
  • Familiarity with CI/CD pipelines (Azure DevOps or similar)

Data & Messaging

  • Experience with SQL and distributed data stores (Cassandra, Hazelcast)
  • Knowledge of messaging systems such as Kafka or Solace

Additional Skills

  • Experience building low-latency, high-throughput systems
  • Strong understanding of software design patterns and system design
  • Exposure to full-stack development (React, TypeScript) is a plus

Domain Experience (Must have)

  • Financial Markets or Investment Banking
  • Derivatives or e-trading platforms

What We’re Looking For

  • Strong problem-solver with a proactive mindset
  • Excellent communication and collaboration skills
  • Ability to work independently and take ownership
  • Experience working in agile and global team environments
  • Passion for building scalable and high-performance systems

What You’ll Get

  • Opportunity to work on a mission-critical global trading platform
  • Exposure to cutting-edge technologies in a high-impact environment
  • A collaborative, learning-driven and international team culture
  • Excellent career growth and development opportunities

Back End Developer - Data in London employer: Allegis Global Solutions

Join a leading investment banking firm in London as a Senior Backend Developer, where you'll be part of a dynamic global engineering team dedicated to building a cutting-edge financial market trading platform. Enjoy a hybrid work pattern that promotes work-life balance, alongside excellent career growth opportunities and a collaborative culture that values continuous learning and innovation.

Allegis Global Solutions

Contact Details:

Allegis Global Solutions Recruitment Team

StudySmarter Expert Advice🤫

We think this is how you could land Back End Developer - Data in London

Tip Number 1

Network like a pro! Reach out to your connections in the industry, attend meetups, and engage with online communities. You never know who might have the inside scoop on job openings or can refer you directly.

Tip Number 2

Show off your skills! Create a portfolio showcasing your projects, especially those related to backend development and financial markets. This will give potential employers a taste of what you can do beyond your CV.

Tip Number 3

Prepare for technical interviews by practicing coding challenges and system design problems. Use platforms like LeetCode or HackerRank to sharpen your skills and get comfortable with the types of questions you might face.

Tip Number 4

Don’t forget to apply through our website! We’re always on the lookout for talented individuals like you. Plus, it’s a great way to ensure your application gets the attention it deserves.

We think you need these skills to ace Back End Developer - Data in London

Java
Spring Framework
Spring Boot
RxJava
REST APIs
Reactive Web Services
Microservices Architecture

Some tips for your application 🫡

Tailor Your CV:Make sure your CV is tailored to the role of Senior Backend Developer. Highlight your experience with Java, microservices, and any relevant financial markets knowledge. We want to see how your skills match what we're looking for!

Craft a Compelling Cover Letter:Your cover letter is your chance to shine! Use it to explain why you're passionate about backend development and how your experience aligns with our mission at StudySmarter. Keep it concise but impactful!

Showcase Your Projects:If you've worked on any relevant projects, make sure to mention them in your application. Whether it's building REST APIs or working with cloud technologies, we love seeing real examples of your work!

Apply Through Our Website:We encourage you to apply through our website for the best chance of getting noticed. It’s super easy, and you'll be one step closer to joining our awesome team at StudySmarter!

How to prepare for a job interview at Allegis Global Solutions

Know Your Tech Stack Inside Out

Make sure you’re well-versed in Java, Spring Framework, and the other technologies mentioned in the job description. Brush up on your knowledge of REST APIs, microservices architecture, and any relevant cloud technologies like Docker and Kubernetes. Being able to discuss these confidently will show that you’re ready to hit the ground running.

Showcase Your Problem-Solving Skills

Prepare to discuss specific examples where you've tackled complex problems in backend development. Think about challenges you've faced in building low-latency systems or optimising performance. This is your chance to demonstrate your proactive mindset and strong problem-solving abilities.

Emphasise Collaboration and Communication

Since this role involves working with cross-functional teams, be ready to talk about your experience collaborating with architects, product owners, and other developers. Highlight instances where your communication skills made a difference in project delivery or team dynamics.

Understand the Financial Markets Domain

Familiarise yourself with the basics of financial markets and investment banking, especially if you have experience in derivatives or e-trading platforms. Showing that you understand the domain will set you apart and demonstrate your genuine interest in the role.