Job Description

We’re looking for a hands-on Senior Application Developer with deep expertise in .NET UI development, particularly using C# and WPF, and a strong foundation in software architecture, modular design, and secure coding. This role involves significant UI development work and offers a clear, supported path toward becoming a Technical Lead. The position is based at our headquarters in Gothenburg, Sweden.

You’ll be part of a collaborative and skilled team of ~15 engineers, working on a mission-critical desktop application used by over 50,000 engineers worldwide across several industries. This is a unique opportunity for someone who enjoys both building robust, high-impact applications and guiding others to grow technically.

Key Responsibilities:

• Design and implement scalable, secure features using .NET (C#) and WPF
• Champion and apply secure coding practices throughout the development lifecycle
• Collaborate with architects, designers, and developers to turn complex requirements into clean, maintainable code
• Take ownership of technical components and provide mentorship to fellow developers
• Lead technical improvements and actively contribute to architecture discussions
• Progressively assume Tech Lead responsibilities in planning, design decisions, and team guidance
• Continuously enhance the performance, security, and functionality of the application to meet industry standards

Requirements:

• Must be located in commutable distance to Gothenburg, Sweden.
• Proven experience developing applications using .NET (C#) and WPF
• Strong understanding of modular design, software architecture, and secure coding practices.
• Familiarity with modern software security standards and concepts
• A hands-on mindset with a passion for problem solving, R&D, and thoughtfully applying new technologies after gaining a solid understanding of existing systems, code and architecture.
• Comfortable working in diverse teams and mentoring junior developers
• Exposure to modern UI technologies such as MAUI, Avalonia, or similar
• Experience in desktop and cross-platform application development
• Strong drive and readiness to grow into a technical leadership role

Required Skills:

.NET, C#, WPF, UI frameworks, MVVM, software architecture, secure coding, hands-on development, problem solving, R&D, applying new technologies, desktop application development, cross-platform application development.

The Benefits:

• Generous pension scheme.
• Holiday in advance.
• Salary to pension-conversion (löneväxling).
• Health care/rehab.
• Insurance.
• Wellness grant (5000 SEK)
• Competent coworkers, senior and junior.
• Flexible hours.
• “Förmånscykel” (through BusinessBike)
• GYM with PT/Health Coach-sessions (CityGate Omnia)
• Modern workspace located in Gothenburg’s tallest commercial building (CityGate)

Meet the team:

SystemWeaver HQ office @ CityGate