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Senior Engineer C# .NET (AWS Cloud) ABOUT US: LSEG (London Stock Exchange Group) is more than a diversified global financial markets infrastructure and data business. We are dedicated, open-access partners with a dedication to excellence in delivering the services our customers expect from us. With extensive experience, deep knowledge and worldwide presence across financial markets, we enable businesses and economies around the world to fund innovation, manage risk and create jobs. Its how weve contributed to supporting the financial stability and growth of communities and economies globally for more than 300 years. Through a comprehensive suite of trusted financial market infrastructure services and our open-access model we provide the flexibility, stability and trust that enable our customers to pursue their ambitions with confidence and clarity. LSEG is headquartered in the United Kingdom, with significant operations in 65 countries across EMEA, North America, Latin America and Asia Pacific. We employ 25,000 people globally, more than half located in Asia Pacific. LSEGs ticker symbol is LSEG. OUR PEOPLE: People are at the heart of what we do and drive the success of our business. Our values of Integrity, Partnership, Excellence and Change shape how we think, how we do things and how we help our people fulfil their potential. We embrace diversity and actively seek to attract individuals with unique backgrounds and perspectives. We break down barriers and encourage teamwork, enabling innovation and rapid development of solutions that make a difference. Our workplace generates an enriching and rewarding experience for our people and customers alike. Our vision is to build an inclusive culture in which everyone feels encouraged to fulfil their potential. We know that real personal growth cannot be achieved by simply climbing a career ladder which is why we encourage and enable a wealth of avenues and interesting opportunities for everyone to broaden and deepen their skills and expertise. As a global organization spanning 65 countries and one rooted in a culture of growth, opportunity, diversity and innovation, LSEG is a place where everyone can grow, develop and fulfil your potential with meaningful careers. ROLE PROFILE: As part of our engineering team, you will design, build, and improve backend services using C# and .NET technologies within AWS-based cloud environment. This role focuses on hands-on development, contributing to team design decisions, and taking ownership for delivering reliable, scalable software. You will work independently while collaborating with peers to improve system performance, reliability, and engineering practices across the team. ROLE SUMMARY: 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 apply your technical knowledge to develop secure, scalable applications, contribute to team decisions, and continuously improve delivery and system reliability. This role plays an important part in increasing delivery speed, system stability, and shared team knowledge. WHAT YOU'LL BE DOING: Design, develop, and maintain services using C# and .NET Build and integrate RESTful APIs Develop and support applications in a fully AWS-based environment Contribute to event-driven solutions using messaging services Use cloud storage and databases for data and file management Monitor and improve systems using logging and monitoring tools Contribute to CI/CD pipelines (GitLab or similar tools) Apply secure coding, testing, and deployment practices Take ownership of features and ensure quality, reliability, and performance Collaborate with team members, share knowledge, and support team outcomes WHAT YOU'LL BRING: Essential skills and experience: Demonstrated ability to design and build scalable backend systems, with strong experience in Cloud technologies. Strong experience with: C# and .NET (ASP.NET Core) Designing, building and working with APIs Working with Managed Databases (for example, Aurora PostgreSQL or similar relational databases) Good understanding of cloud fundamentals, including security, networking, scalability, and high availability Hands-on experience with AWS Cloud services, such as: Compute and container platforms (for example, EC2, Lambda, ECS, or Kubernetes-based environments) Storage solutions (for example, S3 or similar) Messaging services (for example, SNS, SQS) Monitoring and logging tools (for example, Cloud Watch) Experience working with container-based deployments (for example, Docker) Experience using CI/CD tools such as GitLab Strong debugging and problem-solving skills Understanding of secure, resilient, and reliable system design principles Ability to work effectively in Agile teams Clear communication and collaboration skills Desirable skills (nice to have): Exposure to microservices architecture Experience improving system observability and monitoring .
Here's how to pick the right one and stand out in your application.
144.883Jobs
31.687IN
81%EN
That number is real. WorkMundi's database shows 144,883 open engineer roles across the world. India has the most with 31,687 jobs, followed by the United States with 30,084. If you just finished reading one job ad and felt paralyzed by choice, you're not alone—but this scale is actually an advantage. It means you can afford to be selective.
Start by geography and language. The majority of engineer ads—117,837 of them—have the job posting text written in English. Use that as one filter, but remember: the ad text language tells you nothing about whether the role actually requires you to speak English day-to-day. Read the job description carefully. Then check which countries have the volume you're targeting. Singapore, Poland, and Australia round out the top five after India and the US.
Next, learn who's hiring. Accenture has posted 2,801 engineer roles. andurilindustries, speechify, and jobgether are also actively recruiting. If you're applying to one of these names, research their hiring patterns and interview style before you apply. That homework pays off.
When you interview, expect the question every engineer hears: 'Tell me about a time you had to debug a problem that wasn't in your job description.' Have a specific story ready—not a general one. Name the tools, the deadline pressure, and what you learned. Hiring managers listen for whether you see problem-solving as part of the role itself, not a favour.