Lead Software Engineer

Who we are

We are Two Circles. We are a Sports & Entertainment Marketing business. We grow audiences and revenues. We do that by knowing fans best. We work with clients to help them understand & influence what their fans are doing – the way fans spend their money, the events that fans attend, the channels fans respond to, the content fans watch and more. And we use the understanding this gives us to help our clients grow. Grow their audiences and grow their revenues - both direct to consumer and business to business revenues. Our platforms and services are trusted by over 900 clients globally, including the English Premier League, Red Bull, UEFA, VISA, the NFL, Nike and Amazon. We are almost 1000 people, based out of 14 offices, and we deliver work for sports and entertainment businesses of all shapes and sizes all over the world.

What You Will Do

We're looking for a talented Software Engineer to join our squad of >100 Engineers, working on our Audience Intelligence Platform You will be helping to build and evolve the web applications and services that power how teams, leagues, and organizations interact with fan insight and marketing intelligence. In this role, you'll work with modern frontend and backend technologies to design, build, and optimize scalable web applications and APIs, enabling marketing and BI teams to unlock the full potential of our platform. If you're passionate about software engineering, enjoy collaborating in a fast-paced environment, and want to make an impact in the sports industry, we’d love to hear from you!

Your role will be varied and evolve as quickly as you can learn and develop. Your initial duties will involve:

·         Design, build, and test scalable web applications and APIs using modern frontend technologies (HTML5, CSS3/SCSS, JavaScript/TypeScript) and backend frameworks (C#, .NET, ASP.NET MVC & Web API).

·         Develop high-quality software components and services, ensuring efficiency, reliability, performance, and maintainability across our platform.

·         Collaborate closely with product and marketing teams to deliver data-driven insights and solutions that provide high business value.

·         Write clean, maintainable code following best practices and development frameworks, ensuring robust data engineering standards.

·         Continuously improve and optimize data workflows, monitoring performance and implementing enhancements to drive innovation.

·         Develop web applications that visualize audience segmentation and campaign performance metrics

·         Build APIs and dashboards that expose fan behavior analytics to marketing teams

Requirements

Requirements

You will have experience with the following:

• Experience designing, building, and testing scalable web applications and APIs in a modern .NET environment.
• Strong proficiency in C#, with a solid understanding of how to write clean-code.
• Experience with .NET Framework and modern .NET (Core/6/8/10), including awareness of interoperability and migration considerations.
• Strong frontend development experience with HTML5 (semantic markup and accessibility basics), CSS3/SCSS (responsive design, theming, layering), and JavaScript (ES modules, async/await). TypeScript experience preferred.
• Familiarity with CI/CD using Azure DevOps pipelines or GitHub actions.
• Ability to work within established development frameworks and adhere to coding standards.
• Excellent communication skills, with an ability to articulate blockers and timelines to non-technical stakeholders