Senior Fullstack Developer (.NET / Angular)

InventYou; Stockholms kommun; Hybrid; SEK 700,000 - 900,000; Full time

Job summary

InventYOU is seeking a Senior Full-Stack Developer to join a team responsible for a business-critical digital platform. You will work across both back-end and front-end development, building new features, improving existing functionality, and ensuring the stability and performance of applications in production.

The role requires a hands-on developer who is comfortable working with an existing codebase, troubleshooting complex issues, reducing technical debt, and contributing to architectural

Qualifications

• Senior-level experience in full-stack development with .NET and C#.
• Strong hands-on experience with Angular.
• Experience developing and maintaining custom-built web applications in production environments.
• Solid understanding of REST APIs and modern web application architecture.
• Experience troubleshooting, debugging, optimizing performance, and reducing technical debt.
• Ability to work independently and collaboratively within a development team.
• Proficiency in Swedish, both written and spoken.
• Ability to work in a hybrid setup in Stockholm.

Responsibilities

• Work on a business-critical digital platform with continuous development and technical improvements.
• Take ownership of backend and frontend development using .NET, C#, and Angular, with potential exposure to React.
• Provide technical input on frontend migration and architectural decisions.

Skills

NET/C# full-stack

Angular expertise

Web apps in production

REST APIs

Performance optimization

Team collaboration

Swedish proficiency

Job description

We are looking for a Senior Full-Stack Developer (.NET / Angular) to join a team responsible for developing and maintaining a business-critical digital platform. You will work across both back-end and front-end development, building new features, improving existing functionality, and ensuring the stability and performance of applications in production. The role requires a hands-on developer who is comfortable working with an existing codebase, troubleshooting complex issues, reducing technical debt, and contributing to architectural decisions. You will also have the opportunity to provide technical input on the potential migration of the frontend from Angular to React.

• Senior-level experience in full-stack development with .NET and C#
• Strong hands-on experience with Angular
• Experience developing and maintaining custom-built web applications in production environments
• Solid understanding of REST APIs and modern web application architecture
• Experience troubleshooting, debugging, optimizing performance, and reducing technical debt
• Ability to work independently and collaboratively within a development team
• Full professional proficiency in Swedish, both written and spoken
• Ability to work in a hybrid setup in Stockholm

Nice to Have

• Experience with React
• Experience migrating frontend applications from Angular to React
• Experience developing digital platforms within banking, finance, credit, or real estate
• Familiarity with Agile development methodologies
• Experience with application modernization and legacy system improvements

• Work on a business-critical digital platform with continuous development and technical improvements
• Take ownership of both backend and frontend development using .NET, C#, and Angular, with potential exposure to React
• Join inventYOU, an IT staffing and consulting company with a strong presence across Stockholm and Athens, offering exciting consulting opportunities and close support throughout your assignment