Senior C# .Net Developer

We are seeking a highly skilled Software Engineer to join our Risk Intelligence division within the Digital Identity & Fraud (DI&F) department. In this role, you will develop and enhance a suite of APIs consumed by third-party customers for fraud prevention, identity verification, and account validation, contributing to mission-critical services that enable secure transactions in today's digital world.

The ideal candidate will have a strong technical background, problem-solving abilities, and extensive experience with Java or .NET Core, front-end technologies, and cloud platforms. You will be a key player in designing, developing, and maintaining scalable microservices-based applications in a fast-paced and agile environment., * Design, develop, and maintain high-performance APIs consumed by third-party customers for fraud prevention, identity verification, and account validation.

• Collaborate with cross-functional teams to understand business requirements and translate them into technical solutions.
• Develop robust and scalable microservices-based applications using the Spring framework and cloud-native architecture.
• Work closely with front-end teams using technologies like TypeScript, VueJS, React, and Node.js to build dynamic user interfaces.
• Implement CI/CD pipelines using tools like Jenkins, GitLab, and ensure the automated testing of your applications using JUnit, Cucumber, Selenium, and other testing tools.
• Build and deploy containerized solutions using Kubernetes and Docker for cloud platforms such as AWS, Azure, or GCP.
• Optimize application performance using profiling tools, identify bottlenecks, and implement solutions to enhance system efficiency.
• Ensure code quality by adhering to SOLID principles, design patterns, and leveraging static and dynamic code analysis tools such as SonarQube and Coverity.
• Work in an agile environment, contributing to SCRUM and Kanban workflows to meet tight delivery schedules.
• Document the code structure, technical designs, and development processes for internal knowledge sharing and future reference.

• Programming Languages: Core Java or .NET Core 6+ with C#
• Backend Development: Multi-threading, exception handling, and ORM frameworks such as JPA
• Databases: PostgreSQL/MySQL with strong data modeling and SQL skills
• Testing Tools: JUnit, Cucumber, RestAssured, Selenium
• DevOps & Automation: Jenkins, GitLab, Docker, Kubernetes
• Cloud Platforms: AWS, Azure, GCP
• Containerization: Docker, Kubernetes, or similar
• Code Quality: SonarQube, Coverity
• Agile Development: SCRUM, Kanban

Other Required Skills:

• Strong analytical and problem-solving capabilities
• Excellent communication, presentation, and documentation skills
• Ability to work independently and manage dynamic priorities
• Strong collaboration skills with internal and external stakeholders
• Ability to articulate technical concepts and designs to non-technical teams

Nice To Have:

• TypeScript, VueJS, React, Node.js
• Experience in the FinTech industry, especially in financial markets or fraud prevention systems.
• Experience with event-driven architecture and message brokering tools such as RabbitMQ, AWS MQ, or Azure Queue.
• Familiarity with NoSQL databases like MongoDB, DynamoDB, or CosmosDB.
• Experience working with highly distributed, data-intensive systems.

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. As a global business, we rely on diversity of culture and thought to deliver on our goals. Therefore we seek talented, qualified employees in all our operations around the world-regardless of race, color, sex/gender, including pregnancy, gender identity and expression, national origin, religion, sexual orientation, disability, age, marital status, citizen status, veteran status, or any other protected classification under country or local law. LSEG is proud to be an Equal Employment Opportunity/Affirmative Action Employer providing a drug-free workplace.