Senior .NET Engineer AI Copilot .NET Aspire

Dublin City Centre, this job is on-site 4 days a week, based in luxurious modern office space.

EU Passport OR Stamp 4

Senior .NET Software Engineer play with this modern tech stack - .NET 10, C# 14, ASP.NET Core, Web API, React, Modular Monolith Architecture, .NET Aspire, Azure SQL Server, Entity Framework/ORM, Visual Studio Enterprise 2026, and GitHub/Copilot used responsibly for coding, refactoring, testing, and documentation. Build and modernise secure, scalable applications across a cloud-first stack. Hands-on role for a backend-focused engineer with full-stack awareness (70% backend) experience across APIs, cloud, data and AI-assisted development.

What will you do in this role

Design, build, and support secure, scalable .NET applications and APIs.

Translate requirements into clean, maintainable solutions with strong ownership and quality focus.

Collaborate with product, cloud, security, data, and engineering teams to deliver and support production systems.

Apply engineering best practices across coding, testing, CI/CD, support, and responsible use of AI-assisted development tools.

Does this describe you?

- Senior .NET developer with strong back-end experience.

- Takes ownership of their work end-to-end.

- Curious and improvement-minded.

- Likes to understand why something is broken and how to fix it better next time.

- Interested in technology and continuous learning.

- Collaborative and comfortable asking the team for input and ideas.

- Proud of the software they build.

- Follows best practices in code quality, testing, and version control.

- Enjoys building software that matters and is used by real people.

- Works with SOLID principles and practices.

- Applies Domain-Driven Design principles and practices.

- Knows when and how to use design patterns.

- Understands and follows CI/CD practices.

Their Technical environment

Platform: .NET 10, C# 14, ASP.NET Core

Application stack: ASP.NET Core, Web API, React

Architecture: Modular monolith, background services, secure and scalable service design

Cloud/data: .NET Aspire, Microsoft Azure, Azure SQL Database / Azure SQL Managed Instance, SQL Server, Entity Framework, T-SQL, data modelling, query optimisation

IDE: Visual Studio Enterprise 2026

Engineering workflow: GitHub, Git-based workflows, CI/CD, automated testing, code reviews, secure engineering practices

AI-assisted development: GitHub Copilot and similar tools used responsibly to support coding, refactoring, testing, and documentation

Highly Desirable

- Regulated environments, ideally financial services or enterprise technology.

- Cloud-native, containers, messaging, observability, DevSecOps, microservices, or event-driven systems.

- Data platforms, analytics, automation, AI-enabled engineering, or developer productivity.