.NET / C# Developer
First seen by Alion on Oct 1, 2026.
We are looking for an experienced .NET / C# Developer - Banking & Business Intelligence who enjoys building modern, reliable and secure software solutions.
- Hoofdlokatie: Nederland, Randstad
- Type dienstverband: Full Time
Please note: applicants must currently reside in the Netherlands to be considered for this position.
As a .NET / C# Developer, you will be part of a technically strong team within Business Intelligence & Analytics. You will develop financial applications and services that cannot be fully supported by standard solutions. In this role, you will combine software development with cloud technology, DevOps and modern development practices.
You will work in a multidisciplinary Scrum/Agile team, collaborating with colleagues to deliver high-quality solutions and support a smooth transition to the Cloud.
Your role in our team
- Develop and maintain financial applications and services using C# and .NET
- Work with ASP.NET, MVC and modern .NET technologies
- Develop solutions within a Microsoft Azure environment
- Contribute to the further development of our Cloud and DevOps environment
- Build and maintain Azure DevOps pipelines
- Develop modern web applications using Blazor
- Work with relational databases, including SQL Server
- Ensure application quality, security and performance
- Collaborate within a multidisciplinary Scrum/Agile team
- Contribute to architecture decisions and the adoption of new tools, technologies and development practices
How you strengthen our team
You are a technically strong and enthusiastic developer who enjoys keeping up to date with the latest developments in software engineering and Cloud technology.
In addition, you have:
- A completed HBO or WO degree, preferably in ICT or a related field
- Several years of professional experience with .NET and C#
- Experience with ASP.NET, MVC and preferably WCF
- Deep knowledge of C# and .NET
- Strong knowledge and experience with Microsoft Azure
- Experience with Azure DevOps and CI/CD pipelines
- Experience with Blazor
- Good knowledge of SQL Server
- Experience with Git and GitHub
- Experience with different types of data storage, such as SQL Server, Oracle, DynamoDB or Cosmos DB
- Excellent command of English; Dutch is a plus
- You are based in the Netherlands
Your working environment
You will join a professional and multidisciplinary environment where technology, financial services and innovation come together. The banking industry is changing rapidly and faces increasing demands around digitalization, security, regulation and customer experience.
This makes it an exciting environment for an ambitious .NET / C# Developer. You will work on complex challenges and have the opportunity to use modern technologies in an environment where Cloud, DevOps, software development and data are key.
You will work alongside experienced professionals and have plenty of opportunity to further develop your technical expertise and contribute to the organization's technical direction.
What we offer
- A permanent employment contract
- A position of 32 to 40 hours per week
- A technically challenging and professional working environment
- Plenty of opportunities for personal and technical development
- Access to relevant training and professional development
- The opportunity to work with modern technologies within the Microsoft and Azure ecosystem
- A multidisciplinary team where collaboration and knowledge sharing are highly valued
- Interesting projects and assignments within the financial services industry
- An excellent salary and attractive secondary employment conditions
- The opportunity to become a CGI shareholder
Why CGI?
CGI is one of the world's largest IT consultancy firms. Government agencies, banks, (aero-) space, infrastructure organizations and energy and manufacturing companies are clients of CGI. We work on interesting projects that touch the daily lives of millions of people. We are present regionally, augmented with global domain knowledge, our ecosystem, and colleagues spread all over the world.
- Work in small self-managing teams consisting of experts in your field
- Take control of your own career with the space to continue developing yourself
- You work with the latest technologies
- Part-time possibilities