Senior .NET/C# Developer

  • Cork
  • Permanent
  • Wed Oct 29 16:23:36 2025
  • 192011

Senior .NET/C# Developer

Location: Cork, Ireland
Position: Permanent | Full Time | Hybrid

Salary: €65,000 – 75,000

Company Overview:
A well-established technology services firm, trusted by international clients and specialising in delivering high-quality software solutions across varied domains. With more than 25 years in business, the organisation is values-driven, invests in its people and offers real career progression.

Role Overview:
You’ll work directly with client teams to support, enhance and modernise existing applications and develop new solutions using the .NET ecosystem. Your focus will be hands-on software development with C# / .NET and you’ll also engage in consulting with clients, helping shape the technical direction of projects.

Key Responsibilities:

  • Design, build and maintain applications leveraging C# and the .NET framework.
  • Develop robust ASP.NET (MVC / Web API) solutions for client consumption
  • Build and consume microservices and multi-bus message-based integration (service bus, messaging frameworks)
  • Perform large data transformations, data service extracts, integration with SQL databases and data reporting
  • Implement orchestration and transformation patterns (e.g., workflow, message orchestration)
  • Write clean, unit-tested, well-documented code and follow continuous integration / continuous deployment (CI/CD) practices
  • Collaborate with broader Microsoft-technology stack (e.g., Microsoft SQL Server, Azure services)
  • Provide senior technical presence within the team; assist with escalations, mentor others and influence best-practice guidelines

Essential Skills & Experience:

  • Strong commercial experience in .NET / C# development (ASP.NET, Web API)
  • Proficiency in JavaScript and SQL (T-SQL)
  • Experience in team-based development and providing senior/lead presence
  • Significant exposure to data transformations/integrations (extracts, reports, services)
  • Experience in multi-bus messaging system development and/or message-oriented middleware
  • Microservices architecture and orchestration experience
  • Solid CI/CD and unit testing experience
  • Good working knowledge of the wider Microsoft technology stack (e.g., Microsoft SQL Server, Azure, Azure Functions, etc.)

Desirable:

  • Experience modernising legacy .NET applications to newer .NET versions or cloud-native patterns
  • Familiarity with Azure (or AWS) cloud services
  • Experience with containerisation (Docker / Kubernetes)
  • Good documentation skills focussed on end-user/consumer documentation

Benefits:

  • Employee discount scheme
  • Gym membership support
  • Bike-to-work scheme
  • Opportunity for professional development and career progression

If you’re interested, please click below to apply. Any Questions? – Contact Joseph Mullan in Reperio Human Capital

Reperio Human Capital acts as an Employment Agency and an Employment Business.