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# Senior Software Engineer .Net

- **Company:** NewDay
- **Location:** London, UK
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** Java (Programming Language), .NET Framework, Application Programming Interfaces (APIs), Artificial Intelligence, ASP.NET MVC Framework, Microsoft Azure, C Sharp (Programming Language), Software Quality, Continuous Delivery, Github, Node.Js, NuGet, Octopus Deploy, Pair Programming, Cloud Platform System, GitHub Copilot, Event Driven Architecture, Restful APIs, Web Api
- **Published:** June 20, 2026
- **Apply:** https://uk.indeed.com/viewjob?jk=0dae44b2352c2224

## About the Role

Do you have experience in System design?, * Proficiency in crafting modern .NET applications using C# 12+ (including .NET 8+ and NuGet).

 * Ex perienc e in crafting robust HTTP APIs with tools such as ASP.NET MVC, Web API, Carter, or Nancy.
 * Experience navigating Platform-as-a-Service (PaaS) cloud environments.
 * Proven experience with Event-Driven Architecture, designing systems that react in real-time.
 * Experience building and maintaining CI/CD pipelines (e.g. GitHub Act ions, Octopus)
 * Ability to thrive in autonomous, agile environments where daily innovation is the norm.

Preferred Skills and Experience

 * Experience working with other technologies aside from .NET ( e.g. Java, Node)
 * Proven experience working with Microsoft Azure
 * Knowledge of Event-Sourced Systems, building architectures that track every state change.
 * Experience working with distributed, scalable database solutions.
 * Strong understanding of system design principles and modern engineering tooling.
 * Familiarity with Event Sourced architectures.

## Description

As a Senior Software Engineer at NewDay, You'll design and deliver high-quality C#/.NET applications, create robust APIs, and contribute to event-driven architectures in a hands-on role at the core of our tech ecosystem.

Working in a fast-paced, agile team, you'll take solutions from code to production and help evolve our Stratus platform-driving reuse, consistency and engineering excellence.

Your impact: faster delivery, better performance, and scalable, future-ready systems that support NewDay's growth.

How you'll contribute

 * Collaborate with engineers to build and deliver new platform capabilities.
 * Engage in hands-on programming, including coding, pair programming, and testing.
 * Participate in regular scrum ceremonies, contributing to the agile development process.
 * Work closely with the technical lead to build out Stratus Capabilities for other teams to leverage .
 * Implement Continuous Delivery practices to ensure fast and high-quality code deployment.
 * Leverage AI tools (e.g. GitHub Copilot) thoughtfully to improve efficiency and code quality
 * Own what you build - overseeing the performance and resilience of our systems in production.


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