C#/.NET Engineer — Web APIs, Microservices & SDLC

Fulcrum Digital; Dublin; On-site; EUR 60,000 - 90,000; Full time

Job summary

Fulcrum Digital is seeking a skilled .NET developer to design, build, test, and maintain C# / .NET applications (web, desktop, or backend). You'll contribute to architectural decisions and work with Product Owners, designers, and QA across the SDLC.

You'll implement RESTful APIs, microservices, and data access with ORM like EF Core, apply OOP/SOLID; write unit tests, review code, and help the team improve performance and quality in an Agile environment.

Qualifications

• 3+ years of C# and .NET / .NET Core experience.
• Experience with ASP.NET Core for building web APIs or MVC applications.
• Strong understanding of OOP principles, design patterns, and SOLID.
• Proficiency with SQL and relational databases (SQL Server, PostgreSQL, etc.).
• Experience with Entity Framework Core or similar ORM frameworks.
• Familiarity with unit testing frameworks (NUnit, xUnit, MSTest).
• Version control using Git (branching strategies, pull requests).
• Understanding of REST API design and consumption.

Responsibilities

• Design, develop, test, and maintain C# / .NET applications (web, desktop, or backend services).
• Write clean, efficient, and well-documented code following best practices.
• Participate in architectural discussions and contribute to technical design decisions.
• Collaborate with Product Owners, designers, and QA engineers throughout the SDLC.
• Conduct and participate in code reviews to ensure quality and consistency.
• Identify and resolve performance bottlenecks, bugs, and technical debt.
• Integrate with RESTful APIs, microservices, and third-party systems.
• Work within Agile/Scrum ceremonies (sprint planning, standups, retrospectives).
• Mentor junior engineers and contribute to a culture of continuous improvement.
• Stay current with emerging technologies and .NET ecosystem updates.

Skills

C# / .NET

ASP.NET Core

OOP / SOLID

SQL

Entity Framework Core

Unit Testing

Git

REST API design

Job description

Fulcrum Digital is seeking a skilled .NET developer to design, build, test, and maintain C# / .NET applications (web, desktop, or backend). You'll contribute to architectural decisions and work with Product Owners, designers, and QA across the SDLC.

You'll implement RESTful APIs, microservices, and data access with ORM like EF Core, apply OOP/SOLID; write unit tests, review code, and help the team improve performance and quality in an Agile environment.