C# Frontend Developer

Are you passionate about medical technology and ready to make a real impact on the lives of cancer patients? If you have strong experience in C# programming, enjoy tackling the challenges of front-end development, and value the opportunity to work with an authentic and dynamic team, we want you to be a part of our journey towards transforming cancer treatment.

About the role

You will join our front-end team, a key part of the core application group, working on the development of an innovative cancer therapy software product. This groundbreaking project brings together multiple distributed components and complex workflows, offering a dynamic and rewarding opportunity to make a meaningful impact in radiation oncology.

Key tasks and responsibilities

• Development of a frontend GUI desktop application for a cancer therapy software.
• Participating in code reviews, and overall teamwork.
• Documenting and thoroughly testing your work.
• Validating and verifying the work done by the other team members.

Required qualifications and skills

• Proficiency in C# with 3+ years of professional experience.
• Demonstrated competency in WPF (or similar desktop application framework) using the MVVM pattern.
• Good knowledge of software design, programming techniques, and computer science fundamentals.
• Familiarity with source control (Git), CI/CD, code analysis, and other modern programming practices.
• Developed communication skills and an open mind for discussion and team collaboration.

Education

• B.Sc. in Computer Science, Physics, Electrical Engineering, Mathematics, or other related technical disciplines.
• Fluency in spoken and written English.

Bonus points if you have:

• Experience with relational databases (PostgreSQL, MSSQL, etc.).
• Knowledge of other programming languages (Python, PowerShell, etc.).
• Experience in concurrent and distributed systems.
• Understanding of functional programming.

What we offer

• Employment contract for an indefinite period with a six-month probationary period.
• A work environment with flexible working hours and a hybrid work model.
• Plenty of personal and professional growth opportunities combined with a competitive and periodically updated salary tailored to your skills, experiences, and results.
• Interesting work full of challenges in an international working environment.
• Opportunities to work abroad.
• High-impact learning culture: regular in-house and external training sessions and a team of international professionals eager to help you grow.
• Many recreational after-work activities, unlimited coffee, soft drinks, fruit, and other well-being goodies.
• Cosylab events (Teambuilding, New Year's Party, … ).
• Casual atmosphere with friendly faces where you can completely "be yourself."

You will fit perfectly if you share these values:

• Think bold
  : We deliver exceptional solutions through courageous thinking, open communication, and the drive to continuously improve.
• Be modest
  : We set our egos aside in actively listening, respecting one another, and embracing the diversity of experience and perspective across the company.
• Work smart
  : We know we get more accomplished by working together, being accountable, focusing our efforts, and going the extra mile.
• Enjoy life
  : We prioritize balance and positivity, nurturing personal wellness and celebrating successes.
• Do good
  : We support one another and are passionate about solving difficult problems that ultimately help make the world a better place
  .

Apply latest by Friday, 5 December 2025. Your application should include:

• CV,
• brief motivational letter and
• potential recommendations or references.

We're looking forward to meeting You

The Cosylab Team