C#.Net Engineer Fintech Greenfield Event-Driven Data Platform £110,000 + Benefits Hybrid (London)

C#.Net Engineer Fintech Greenfield Event-Driven Data Platform £110,000 + Benefits Hybrid (London)

Exciting opportunity alert! Join a leading Fintech as they embark on a greenfield data transformation, building a next-generation, event-driven, real-time data platform from the ground up.

We're looking for experienced C#.Net Core Engineers who love solving complex problems, designing scalable systems, and working on high-performance technology in a fast-paced environment.

The Role

You'll be joining a brand-new team driving the evolution from off-the-shelf systems to a modern, data-centric architecture built for scale, stability, and speed.

Your role will involve:

• Designing, developing, and delivering high-quality production software
• ️ Taking ownership of system architecture and technology selection
• ️ Building event-driven microservices to process near real-time data
• Working closely with product, data, and infrastructure teams to deliver seamless solutions
• Maintaining a strong engineering mindset - balancing speed, quality, and long-term maintainability

This is a hands-on engineering role with plenty of architectural influence - ideal for someone who wants to build something new, modern, and impactful.

Tech Stack & Skills

We're looking for engineers who bring a mix of the following:

• Strong experience with C#.Net Core
• Event-driven messaging using Azure Event Hubs or Apache Kafka
• Designing and deploying microservices (RESTful APIs / gRPC)
• ️ Solid database experience - SQL Server, MongoDB, or CosmosDB
• Familiarity with Azure DevOps, Git, and CI/CD Pipelines
• Strong focus on quality: unit testing, BDD (Cucumber/Gherkin), and automation
• Skilled in debugging, performance optimisation, and monitoring within .NET environments

If you're passionate about clean architecture, data streaming, and modern engineering practices, this will be an environment where you can thrive.

The Offer

• £110,000 base salary + great benefits
• Hybrid working - 2-3 days per week in their London office
• Permanent, full-time role
• Greenfield project - shape the technical foundation from day one
• Work with a talented team driving innovation in financial technology

Interested?

If this sounds like the challenge you've been waiting for, send your CV to

or simply reply to this advert with your latest CV.