Senior .NET Engineer in FinTech

Senior .NET Developer - FinTech Scale-Up - Stockholm

I am hiring for a Senior .NET Developer to join a fast-growing fintech scale-up based in central Stockholm. Backed by strong investors and having experienced exceptional growth over the past year, the company is continuing to expand its engineering team as they build the next generation of their platform.

You'll play a key role in developing new features and products while also maintaining and enhancing existing systems. This is an exciting opportunity to join a collaborative engineering team where you'll have real ownership and the chance to work on AI-powered products, integrating artificial intelligence into the company's core platform and future offerings.

Responsibilities:

• Design, develop, and maintain scalable applications using .NET.
• Build new products and features while supporting and improving existing applications.
• Collaborate with Product, Design, and Engineering teams to deliver high-quality software.
• Contribute to the design and implementation of AI-enabled features and products.
• Write clean, maintainable, and well-tested code following best practices.
• Participate in code reviews and help drive technical improvements across the platform.
• Support production systems and contribute to ongoing optimization and performance improvements.

Requirements:

• 7+ years' experience developing applications with .NET / C#.
• Commercial experience working with React.
• Experience building and maintaining modern, scalable web applications.
• Strong understanding of software architecture and engineering best practices.
• Experience working within cloud environments (Azure is beneficial).
• An interest in AI technologies and integrating AI capabilities into products would be highly advantageous.
• Experience working in scale-up or fast-paced product environments is beneficial.

This role requires candidates to speak Swedish and is unable to provide visa support.

Why join?

• Join a well-funded fintech scale-up experiencing rapid growth.
• Work on innovative products with AI at the heart of future development.
• Opportunity to have significant ownership and influence over technical direction.
• Modern technology stack and an ambitious engineering culture.
• Competitive salary of up to SEK 70,000 per month, depending on experience.
• Hybrid working model with 3 days per week onsite in their central Stockholm office.

Please apply via the Easy Apply function.

For more information, please email [email protected].

The application deadline for this position is the 31st of July 2026. Applications are reviewed on a rolling basis, so early applications are encouraged.