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Principal software developer

Galway
Hays
Software developer
Posted: 24 January
Offer description

We are recruiting a Principal Software Developer (also known as Principal Software Engineer / Software Architect) to provide technical leadership and architectural ownership across enterprise scale, cloud-based applications.

This role is ideal for a senior technologist with strong .NET experience, deep software architecture expertise, and a proven background designing high performance, scalable systems in AWS or Azure environments.

Key Responsibilities

* Lead the software architecture and technical direction of core platform services
* Design and develop enterprise APIs, backend services, and web applications
* Write and review high quality C#/.NET production code
* Own performance, scalability, availability, and security requirements
* Drive best practices across clean code, design patterns, and system architecture
* Identify and reduce technical debt while improving system maintainability
* Collaborate with Product, Engineering, QA, and Senior Leadership
* Support agile delivery through code reviews, mentoring, and technical guidance
* Maintain architectural documentation and technical standards

Essential Skills & Experience

* 8+ years' experience in software development and system architecture
* Expert knowledge of C#, .NET, ASP.NET, MVC
* Strong experience with JavaScript frameworks (Angular, )
* Excellent understanding of SQL Server, relational databases, and NoSQL
* Commercial experience deploying applications in AWS and/or Microsoft Azure
* Knowledge of CI/CD pipelines, DevOps practices, and code quality tools (e.g. SonarQube)
* Strong background in software design patterns, microservices, and distributed systems
* Experience working in agile / scrum environments
* Degree in Computer Science, Software Engineering, or related discipline (preferred)

What you need to do now

If you're interested in this role, click 'apply now' to forward an up-to-date copy of your CV, or call us now.

If this job isn't quite right for you, but you are looking for a new position, please contact us for a confidential discussion about your career.

Hays Ireland is a trading division of Hays Specialist Recruitment (Ireland) Limited and acts as an employment agency for permanent recruitment and employment business for the supply of temporary workers. By applying for this job you accept the T&C's, Privacy Policy and Disclaimers which can be found

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