Senior C# Developer | Hybrid Work & Growth

Coolblue; Rotterdam; Hybrid; EUR 55,000 - 90,000; Full time

Benefits offered by this job

Hybrid work model

Training courses

Travel allowance

Pension scheme

Snacks and team events

Job summary

Coolblue seeks an energetic Developer C# to join the Rotterdam team. You will design, build, and maintain software that keeps colleagues and customers smiling, using clean, testable code and modern patterns.

You’ll collaborate with UX, PO, and Data teammates, practice TDD/BDD and SOLID, and participate in sprint demos. The role offers hybrid work, training, and a collaborative, informal culture.

Qualifications

• Minimum 3+ years as a developer at medior level or 6+ years at senior level.
• Bachelor’s or Master’s degree in Computer Science or comparable field.
• Strong Scrum/Agile experience and English proficiency.

Responsibilities

• Design, build, and maintain software for the team’s domain.
• Write automated tests to ensure quality.
• Mentor teammates and participate in pair programming and code reviews.
• Present deliverables during sprint demos and contribute to design discussions.

Skills

Scrum/Agile

Testing & TDD

Mentoring

Education

Bachelor's or Master's in Computer Science

Tools

Oracle

MySQL

DynamoDB

Job description

Coolblue seeks an energetic Developer C# to join the Rotterdam team. You will design, build, and maintain software that keeps colleagues and customers smiling, using clean, testable code and modern patterns.

You’ll collaborate with UX, PO, and Data teammates, practice TDD/BDD and SOLID, and participate in sprint demos. The role offers hybrid work, training, and a collaborative, informal culture.