Rotterdam
13 Apr 2026
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C# Developer

Coolblue

C# Developer

C# Developer role at Coolblue in Rotterdam, focusing on designing, realizing, and maintaining software with a hybrid work model. Requires at least 3+ years of C# experience, a degree in Computer Science, and expertise in .NET, cloud-native microservices, and Agile methodologies. Offers benefits like travel allowance, retirement plan, and training opportunities.

HybridFull-timeMid LevelC#.NET 8.0

Salary

Not specified

Work Location

Rotterdam, South Holland, Netherlands, NL

Work Model

Hybrid: A fine balance between working at the office and working from home.

Experience Required

6 years

Employment Type

Full-time

Experience Level

At least 3+ years (medior) or 6+ years (senior) of experience as a C# developer.

Core Qualifications

Technical (Must-have)
C#.NET 8.0Clean ArchitectureTDD/BDDSOLIDdesign patternsOracleMySQLDynamoDBAWS
Soft Skills
ownershipsharing knowledgeconstructive feedbackteamworkcommunication
Tools (Must-have)
DatadogGithubTeamCity

Preferred Qualifications

Technical (Nice-to-have)
ReactJavaScriptHTML5CSS

Key Responsibilities

  • Solving problems with best practices and principles like Clean Architecture, TDD/BDD, SOLID, and design patterns.
  • Writing automated tests to ensure software quality.
  • Working with various types of data storage such as Oracle, MySQL, and DynamoDB.
  • Showing ownership over solutions by logging and monitoring with Datadog.
  • Sharing knowledge through mentoring, pair programming, and pull request reviews in Github.
  • Getting space to develop and delve into latest technologies.
  • Giving and receiving constructive feedback.
  • Presenting deliverables during sprint demos.
C# DeveloperComputers and Electronics ManufacturingEngineering and Information TechnologyC#.NETAWSAgileMicroservicesHybridRotterdam