Senior Software Engineer- Java

expertise and strong engineering discipline. Architect & Build Design and develop scalable, cloud-native applications using Java, Spring Boot, Spring Framework, REST APIs, and microservices architecture. Build high-throughput backend services, event-driven applications, integration layers, and resilient distributed systems. Develop secure, maintainable, and highly available applications leveraging modern Java ecosystem technologies. Optimise & Enhance Improve system performance through profiling, JVM tuning, memory optimisation, concurrency management, and API optimisation. Implement clean architecture principles, design patterns, secure coding practices, and maintain high code quality standards. Enhance application reliability through observability, monitoring, and automated testing. Collaborate Work in an Agile environment with Product Owners, Architects, SRE, QA, and Platform Engineering teams. Participate in solution design discussions, code reviews, architecture reviews, and engineering best-practice initiatives. Collaborate across teams to deliver scalable and resilient solutions aligned with business goals. Mentor & Share Guide junior engineers, contribute to engineering forums, and participate in internal tech talks and knowledge-sharing sessions. Help drive engineering excellence through coaching, technical mentorship, and continuous improvement initiatives. Desired Technical Expertise We are interested in engineers with experience in some of the following technologies: Core Technologies Java 8/11/17+ Spring Boot, Spring MVC, Spring Security RESTful APIs and Microservices Hibernate/JPA Maven or Gradle Cloud & Modern Engineering AWS, Azure, or Google Cloud Platform Docker and Kubernetes CI/CD pipelines Event Streaming technologies such as Kafka Distributed systems and cloud-native architectures Databases & Data Technologies SQL databases such as Postgre SQL, Oracle, My SQL No SQL databases such as Mongo DB, Cassandra, Redis Performance optimisation and database tuning Engineering Practices Test-Driven Development (TDD) Unit, Integration, and Automation Testing Dev Ops and Infrastructure as Code principles Observability, monitoring, and production support What You'll Bring Build With Purpose Start with why. Define the problem clearly. Deliver measurable outcomes. Customer Driven Work backwards from customer needs. Build for real-world use, with continuous feedback loops. Technically Courageous Tackle complex problems, push boundaries, learn from the best, and avoid mediocrity. Learn and Be Curious Develop a growth mindset. Continuously learn, experiment, and share knowledge. Act as Owner Operate as stewards of company resources. Prioritise long-term value. Lead with Data Use precise data to guide decisions, identify risks, and learn from outcomes. Dive Deep Stay close to the details, investigate discrepancies, and act swiftly to correct course. Build Responsibly, Deliver Incrementally Prioritise scalable, secure, reliable solutions and iterate using customer feedback. Collaborate to Achieve Communicate openly, work respectfully, and value how work is done as much as what is delivered. How We Hire Our process is skills-focused and structured to be fair and consistent. For Java engineering roles, candidates typically complete an online coding assessment before participating in interviews exploring: Core Java expertise Data Structures & Algorithms Object-Oriented Design System Design and Architecture Distributed Systems & Microservices Problem Solving and Engineering Principles Why Connect Now? Skip the Line Candidates in this talent community are prioritised for fast-track evaluation when a suitable Java role opens. Exclusive Insights Receive invites to architecture roundtables, engineering webinars, and technical roadmap previews. Career Alignment We only reach out for roles that fit your aspirations, whether that's backend engineering, distributed systems, cloud engineering, platform development, API engineering, or full-stack development. How to Join Upload your CV along with a short note about: The type of Java engineering challenges you enjoy. Your preferred technical areas: backend engineering, microservices, cloud platforms, distributed systems, API development, event-driven architectures, or platform engineering. We will review your profile and connect for an informal conversation to better understand your interests and career aspirations. Career Stage: Senior Associate London Stock Exchange Group (LSEG) Information: Join us and be part of a team that values innovation, quality, and continuous improvement. If you're ready to take your career to the next level and make a significant impact, we'd love to hear from you. LSEG is a leading global financial markets infrastructure and data provider. Our purpose is driving financial stability, empowering economies and enabling customers to create sustainable growth. Our purpose is the foundation on which our culture is built. Our values of Integrity, Partnership, Excellence and Change underpin our purpose and set the standard for everything we do, every day. They go to the heart of who we are and guide our decision making and everyday actions. Working with us means that you will be part of a dynamic organisation of 25,000 people across 65 countries. However, we will value your individuality and enable you to bring your true self to work so you can help enrich our diverse workforce. We are proud to be an equal opportunities employer. This means that we do not discriminate on the basis of anyone’s race, religion, colour, national origin, gender, sexual orientation, gender identity, gender expression, age, marital status, veteran status, pregnancy or disability, or any other basis protected under applicable law. Conforming with applicable law, we can reasonably accommodate applicants' and employees' religious practices and beliefs, as well as mental health or physical disability needs. You will be part of a collaborative and creative culture where we encourage new ideas. We are committed to sustainability across our global business and we are proud to partner with our customers to help them meet their sustainability objectives. Our charity, the LSEG Foundation provides charitable grants to community groups that help people access economic opportunities and build a secure future with financial independence. Colleagues can get involved through fundraising and volunteering. LSEG offers a range of tailored benefits and support, including healthcare, retirement planning, paid volunteering days and wellbeing initiatives. Please take a moment to read this privacy notice carefully, as it describes what personal information London Stock Exchange Group (LSEG) (we) may hold about you, what it’s used for, and how it’s obtained, your rights and how to contact us as a data subject. If you are submitting as a Recruitment Agency Partner, it is essential and your responsibility to ensure that candidates applying to LSEG are aware of this privacy notice. If you want to apply for a job, please click the Apply button. You will then be redirected to our Careers sign-in page where you can enter your existing credentials or set up an account with us. If there is nothing that currently suits you, feel free to send us your Resume/CV LSEG (London Stock Exchange Group) is a leading global financial markets infrastructure and data provider. Our purpose is driving financial stability, empowering economies and enabling customers to create sustainable growth. Our culture of connecting, creating opportunity and delivering excellence shapes how we think, how we do things and how we help our people fulfil their potential. Our Data & Analytics, Capital Markets and Post Trade divisions have a combined power that provides a comprehensive, integrated suite of trusted financial market infrastructure services to help our customers pursue their ambitions. Explore our divisions LSEG is headquartered in the United Kingdom, with significant operations in 70 countries across Europe, the Middle East, Africa, North America, Latin America and Asia Pacific. Find out more Get to know some of our people who are pushing the boundaries of technology, finance and more around the world.