Lead Engineer – C# .NET (AWS Cloud)

As part of our engineering team, you will lead design, build, and improve backend services using C# and .NET technologies within a fully AWS-based cloud environment. This role focuses on hands-on development, contributing to team decisions, and taking ownership of delivering reliable, scalable software. You will work independently while collaborating with peers to improve system performance, reliability, and modern cloud engineering practices.

We are looking for a Senior Software Engineer with strong C# and .NET expertise to build and support backend systems running on AWS cloud platforms. You will develop secure, scalable applications using Cloud services and contribute to improving system reliability, delivery speed, and team knowledge. This role plays an important part in building and operating cloud-native, event-driven applications at scale.

Lead design, develop, and maintain backend services using C# and .NET

Build and integrate RESTful APIs including apply secure coding, testing, and deployment practices

Develop and support applications in a fully AWS-based environment

Work with container-based platforms (such as Kubernetes or Amazon Elastic Container Service (ECS))

Build event-driven solutions using messaging services

Manage cloud storage for data and file management

Contribute to CI/CD pipelines (GitLab)

Guide and contribute technical decisions through code reviews and mentoring of team members

Take ownership of features to ensure quality, reliability, and performance

Opportunity to work on high-impact with Cloud-native systems at global scale

A collaborative environment that supports learning and continuous improvement

Opportunities to grow your technical and cloud expertise

The chance to contribute to meaningful work that supports global financial markets

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.

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