Senior Software Engineer, London Stock Exchange
Java
Office located in Chapel Qtr, Nottingham
Stock exchange in the City of London
Be an early applicant
Stock exchange in the City of London
1001+ employees
Be an early applicant
Office located in Chapel Qtr, Nottingham
1001+ employees
Company mission
To make things happen, out there in the real world, where it matters.
Role
Who you are
- If you’re passionate about writing clean, maintainable code, building cloud-native applications, and delivering software that makes an impact, we invite you to bring your skills to our collaborative tech hub in Nottingham
- Solid experience with Java and the JVM ecosystem
- Strong understanding of object-oriented programming, design patterns, and microservices architecture
- Experience with unit testing and writing clean, maintainable code
- Familiarity with microservices testing strategy (unit, component, contract, end-to-end)
- Knowledge of AWS services (SQS, Lambda, API Gateway, S3, CloudWatch, IAM)
- Experience with CI/CD pipelines and trunk-based development
- Good communication skills and a collaborative mindset
- Familiarity with Git and modern branching workflows
Desirable
- Experience working with Elasticsearch
- Experience with containerization (Docker, Kubernetes, EKS, ECS)
- Familiarity with CI/CD tooling (Jenkins, GitLab)
- Experience with BDD practices
- Knowledge of secure coding practices and observability (distributed tracing, monitoring)
- Infrastructure as Code: Terraform, CloudFormation
What the job involves
- Our teams build resilient, scalable platforms that power global finance
- Design and develop Java-based microservices for cloud-native applications on AWS
- Work in an Agile environment, embracing trunk-based development, continuous delivery, and a shift-left approach to quality
- Collaborate closely with engineers and quality specialists to ensure microservices testing strategy is applied effectively:
- Unit tests for logic correctness
- Component tests for service boundaries
- Contract tests for service interactions
- Simple, maintainable end-to-end tests for critical workflows
- Have an appetite to run containerized services locally (e.g. Docker, Podman) to prevent integration issues and keep pipelines clean
- Contribute to CI/CD pipelines, ensuring fast, reliable deployments
- Participate in code reviews, refinement sessions, and planning to improve design, testability, and maintainability
- Take ownership of your work and help the team continuously improve through retrospectives and knowledge sharing
- Build and maintain efficient, reusable, reliable, and secure Java code based on user stories and software designs
- Develop and integrate RESTful APIs and microservices architectures
- Ensure quality through automated testing and a shift-left approach
- Contribute to trunk-based development workflows and maintain healthy continuous delivery pipelines
- Participate in Agile ceremonies and provide timely updates on progress
- Analyse requirements, provide design input, and estimate complexity
Application process
- End Date: December 22, 2025
Our take
The London Stock Exchange is one of the world’s oldest stock exchanges, with a history dating back over 300 years. It operates as a part of LSEG (London Stock Exchange Group), one of the world’s leading providers of financial markets infrastructure, as a marketplace to enable stock brokers and traders to buy and sell stocks, bonds, and other securities.
The London Stock Exchange has lived through a stream of innovations; from telegraph and telephone, to the Market Price Display System, automatic trade matching, and the digitisation of issuer services. In 2019 it acquired Refinitiv, a financial information company, and in doing so became a global financial news and data business.
Most recently, the London Stock Exchange has made moves to support the evolution of private markets, and further build its presence in this space. It partnered with Floww, a platform that connects investors with private companies, with aims to launch a private primary capital raising facility, as well as explore new technologies and secondary market options for the platform.
Steph
Company Specialist at Welcome to the Jungle
Insights
21% employee growth in 12 months
Company
Company HQ
City of London, London, UK
Leadership
David Schwimmer
(CEO)Prior to joining LSEG in 2018, David was a Managing Director at Goldman Sachs for over 20 years.
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