Senior Fullstack Software Engineer (Automotive)

Location: Vejle, Denmark; on-site at the Vejle office

Company

AutoProff provides online B2B used-car dealing solutions for professional car dealers across Europe.

What you will do

• Design, develop, and maintain reliable solutions across backend, web frontend, and mobile platforms.
• Build a unified seller solution for vehicle intake, inventory management, pricing, and sales.
• Apply engineering best practices, design patterns, code reviews, and testing.
• Take ownership of software in production and promote a “you build it – you own it” culture.
• Mentor and coach colleagues on areas of expertise.
• Identify opportunities for personal and engineering development.

Requirements

• Strong hands-on experience building backend services with .NET and C#.
• Strong knowledge of object-oriented programming and databases.
• Experience troubleshooting production issues and taking ownership of software.
• Collaborative, adaptable mindset focused on shared ownership and continuous improvement.
• Fluency in business English.

Nice to have

• Experience contributing to web frontend or React Native development.
• Knowledge of distributed systems and event-driven architecture.
• Experience with Vue 3, TypeScript, Vite, AWS, containerization, serverless computing, or RESTful APIs.

Culture & Benefits

• Work with experienced colleagues in an international environment.
• Use modern AI-powered development tools.
• Participate in hackathons exploring new technologies and ideas.
• Access internal developer forums for architecture discussions and engineering challenges.
• Work in a culture that values innovation, experimentation, learning, and continuous improvement.