London, England, United Kingdom

London Stock Exchange Group (LSEG) is hiring an Engineer, Post Trade

About the Role

Help build a next-generation, cloud-based market infrastructure service from the ground up, designed to meet the demands of modern financial markets. This role offers the chance to shape a foundational platform, working closely with technical leadership to deliver resilient, high-performance systems that power critical post-trade operations.

What You'll Do

  • Collaborate with senior technical stakeholders to define, design, and implement scalable microservices using domain-driven and event-driven architecture principles.
  • Take ownership of the full engineering lifecycle—from concept and design through to deployment and testing—ensuring robustness, performance, and maintainability.
  • Apply deep technical knowledge in Java 17+ and Spring Boot to develop enterprise-grade services with a focus on clean design and operational resilience.
  • Design and manage containerized workloads using Docker and Kubernetes, with deployment on AWS cloud infrastructure including Aurora, MSK, S3, and IAM.
  • Build and maintain CI/CD pipelines using GitLab, integrating shift-left testing practices with JUnit, Cucumber, PACT, and Test Containers to ensure quality at speed.
  • Work with event streaming platforms like Kafka and message brokers to enable asynchronous, reliable communication across distributed systems.
  • Apply best practices in database design using Postgres, with version control managed via Flyway or Liquibase.
  • Engage in agile rituals within Scrum or Kanban frameworks, contributing to backlog refinement, sprint planning, and continuous improvement.
  • Support secure integration of emerging technologies, including blockchain fundamentals such as consensus models, smart contracts, token standards, and cross-chain interoperability.
  • Foster a culture of technical excellence, open dialogue, and inclusive collaboration, where innovation and continuous learning are expected.

What We're Looking For

  • Proven experience in microservices architecture, including awareness of trade-offs and failure modes.
  • Strong command of object-oriented programming, concurrency models, and data structures in Java.
  • Hands-on experience with cloud platforms—especially AWS—and services such as Aurora, MSK, S3, and IAM.
  • Familiarity with cloud networking, security practices, and object storage solutions.
  • Understanding of blockchain integration patterns, cryptographic standards, key management, and transaction lifecycle management.
  • Commitment to agile values, with experience in cross-functional, scaled agile environments.
  • Ability to thrive in a culture that values integrity, quality, inclusion, and sustainable innovation.

Our Culture and Benefits

The environment supports creativity, collaboration, and meaningful contribution. You'll be part of a team that values diverse perspectives, encourages challenge and growth, and promotes wellbeing through flexible initiatives and inclusive practices. Benefits include healthcare, retirement planning, volunteering days, and active support for sustainability and community engagement. As an equal opportunities employer, reasonable accommodations are available for applicants and employees with disabilities or religious requirements.

Required Skills
microservices designDomain-Driven Design (DDD)event-driven architectureDockerKubernetesGitLabKafkaMQJUnitCucumberGherkinPACTTest ContainersDevOps pipelinescloud infrastructure microservices designDomain-Driven Design (DDD)event-driven architectureDockerKubernetesGitLabKafkaMQJUnitCucumberGherkinPACTTest ContainersDevOps pipelinescloud infrastructure
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About company
London Stock Exchange Group (LSEG)
LSEG is a leading global financial markets infrastructure and data provider. Its purpose is driving financial stability, empowering economies and enabling customers to create sustainable growth.
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Job Details
Department Software Development
Category backend
Posted 3 months ago