
Senior .NET Developer
- Cloud Nine
Job description
As a Senior .NET Developer you will play a key role in designing, developing, and maintaining web applications and digital platforms for clients. This is a unique opportunity to work in a dynamic, collaborative environment where your expertise will help shape the future of digital experiences. You responsibilities:
Develop and maintain high-quality web applications and digital solutions using .NET technologies
Collaborate with cross-functional teams, including designers, front-end developers, and project managers, to deliver engaging, user-friendly applications
Participate in the entire software development lifecycle, from requirements gathering to deployment and ongoing maintenance
Optimize applications for maximum speed and scalability
Troubleshoot, debug, and resolve technical issues to ensure smooth project delivery
Contribute to continuous improvement by recommending new tools, technologies, and processes
We offer
A creative, inclusive, and supportive work environment
Opportunities for professional growth and learning
Flexible working conditions and competitive compensation
The chance to work on innovative projects with leading brands

About Cloud Nine
Cloud Nine is one of the leading digital agencies in Sweden with customers throughout Europe. We are an international company with offices in Stockholm, Helsinki, and Gdansk with several colleagues on the European continent.
Job requirements
5+ years of experience as a .NET Developer, preferably in a digital agency or similar environment
Knowledge of .NET Core, C#, and ASP.NET
Strong experience with SQL Server, Entity Framework, and RESTful APIs
Familiarity with front-end technologies such as HTML, CSS, JavaScript, and frameworks like React or Angular is a plus
Experience with e-commerce platforms such as Litium, Centra, and Shopify is highly desirable
Experience with Umbraco (CMS) is highly desirable
Knowledge of cloud platforms (e.g., Azure or AWS) and DevOps practices
Excellent problem-solving skills and attention to detail
Strong communication skills in English; Swedish or Finnish is a big plus
Ability to work in a collaborative environment and manage multiple projects simultaneously
We care about building relationships between employees and the culture of our organization, thus we welcome you to work at least 2 days a week in the office
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