Principal Software Developer (.NET / C#)

ITSearch · Recruitment agency
Full-time•Back-end development•€100k-130k/year (EUR)•Ireland · Remote within Ireland
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At a glance

Employment type
Full-time
Workplace
Remote
Salary
€100k-130k/year (EUR)

Technologies & skills

Primary technologies

Cloud & infrastructure

Other technical skills

What you'll be doing

Principal Software Developer (remote, Ireland) for a global ERP provider. Acts as technical authority and highest individual contributor, owning architectural decisions, performance optimization, and mentoring across Desktop and Web. No formal people management. Focus on .NET/C#, SQL, Azure, MongoDB, and Redis.

Key requirements

Must-have

  • Deep, hands-on expertise in C# and .NET (Framework and Core) for Desktop and Web applications
  • Strong SQL Server skills with experience in database-driven enterprise applications
  • Ability to design, architect, and deliver scalable functionality in large software products
  • Advanced experience in software profiling, debugging, and system optimization
  • Track record of influencing architectural decisions and mentoring developers
  • Understanding of Agile development and full software lifecycle delivery
  • Experience with Redis, MongoDB, DevExpress, and Azure DevOps

Role signals

Technical focus
Back-end development
Leadership
Mentoring
Architecture / system design
Indicated in the listing
Hands-on vs management
Hands-on

Full job description

We are looking for a Principal Software Developer to act as a technical authority for an established global ERP software provider. Representing the highest individual-contributor level in the engineering team (no formal people management), you will own complex architectural decisions, drive performance optimization, and mentor developers across both Desktop and Web environments.

Requirements

  • Deep, hands-on expertise in C#, .NET Framework, and .NET Core across both Desktop and Web applications.

  • Strong SQL Server skills with experience building database-driven enterprise applications.

  • Proven ability to design, architect, and deliver scalable functionality within large, established software products.

  • Advanced experience in software profiling, debugging, and system optimization.

  • Strong track record of influencing architectural decisions, resolving ambiguous technical problems, and mentoring fellow developers.

  • Solid understanding of Agile development practices and full software lifecycle delivery.

  • Experience with Redis, MongoDB, DevExpress, and Azure DevOps.

Salary: 100-130k(potentially negotiable further for the right candidate)
Strong benefits package including pension and healthcare.
Can be full remote but you must still be based in Ireland
Company which is known for a good work life balance!

If this sounds of interest please apply today or reach out to Rebecca Lavery at IT Search for more details

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Apply NowApply before: 14 Dec 2026