Experienced Software Developer

Dalux; Københavns Kommune; On-site; DKK 900,000 - 1,200,000; Full time

Benefits offered by this job

Pizza & Beer event

Monthly events

Employee-driven clubs

Job summary

Dalux is seeking an Experienced Software Developer to take ownership of complex product and technical problems from idea to production. You will work with a product team of other developers, a Product Manager, and a Product Designer to craft scalable, maintainable solutions and influence architectural decisions.

We actively explore AI-assisted development, and practical experience with AI in the workflow is a plus. All development happens in-house at our Vibenshuset headquarters in Copenhagen.

Qualifications

• Hold a university degree in Computer Science, Software Engineering, IT, or a related technical field.
• Have solid professional software development experience.
• Strong software engineering fundamentals.
• Are comfortable owning complex technical problems and decisions.
• Care about maintainability, reliability, performance, and quality.
• Can navigate and improve an established codebase and architecture.
• Enjoy technical sparring and sharing knowledge with other developers.
• Are proactive and willing to challenge existing approaches when you see a better solution.
• Understand the trade-offs between short-term delivery and long-term technical quality.
• Are interested in how AI and new development tools can improve your effectiveness as an engineer.

Responsibilities

• Own complex features and technical problems end-to-end.
• Design and implement scalable, maintainable solutions.
• Contribute to architectural decisions and technical direction.
• Identify and address technical debt where it adds value.
• Improve engineering practices, tools, and developer workflows.
• Drive or contribute to CI/CD, IaC, and architecture initiatives.
• Mentor other developers and share knowledge.
• Collaborate with Product Management and Design to understand problems and solutions.

Skills

Software development

Codebase navigation

C#/.NET

Angular

Cloud development

AI-assisted development

Product collaboration

Education

University degree in CS/Software Engineering/IT

Tools

AWS

.NET MAUI

Job description

Build software at scale. Influence how we build it. Help us shape the next generation of development at Dalux.

You will work on products used by professionals around the world, contribute to architectural and technical decisions, and have the opportunity to influence not only what we build, but also how we build it.

Increasingly, this means thinking about how we use AI to make software development more effective.

Your role

As an Experienced Software Developer, you will take ownership of complex product and technical problems from idea to production.

You will work as part of a product team together with other developers, a Product Manager, and a Product Designer. We expect experienced developers to contribute beyond their individual tasks: helping make good technical decisions, improving the codebase and architecture, sharing knowledge, and raising the engineering standard around them.

Depending on your experience and interests, your work can include:

• Owning complex features and technical problems end-to-end
• Designing and implementing scalable, maintainable solutions
• Contributing to architectural decisions and technical direction
• Identifying and addressing technical debt where it creates meaningful value
• Improving engineering practices, tools, and developer workflows
• Driving or contributing to initiatives around infrastructure as code, DevOps, CI/CD, architecture, or developer tooling
• Sparring with and mentoring other developers
• Working closely with Product Management and Design to understand problems and find the right solutions
• Bringing new ideas and technologies into Dalux when they can improve our products or development practices

AI-assisted software development

We are significantly increasing our focus on AI-assisted development across Dalux.

We are actively exploring how AI can improve the software development lifecycle – from understanding requirements and exploring technical approaches to coding, testing, review, debugging, refactoring, and automation.

We do not see AI as a replacement for strong engineering fundamentals. We see it as a tool that can make capable developers more effective when combined with technical judgment and a clear understanding of the problem being solved.

As an experienced developer, we want you to take an active role in this development: experimenting with new workflows, critically evaluating their value, sharing what works, and helping us establish good engineering practices around AI-assisted development.

Practical experience using AI as part of your development workflow is an advantage. More importantly, you should be curious about how these tools are changing software engineering and willing to continue developing your own way of working.

Technologies we work with

Our platform is built on a distributed cloud architecture using AWS.

Our primary technologies include:

• C# / .NET
• Angular / TypeScript
• GitHub CoPilot
• MSSQL
• Elasticsearch
• AWS
• Optionally, Android / iOS development using .NET MAUI

You may also encounter parts of our C++ codebase, including opportunities to modernize and improve existing solutions.

Experience with our exact technology stack is useful, but strong software engineering fundamentals and the ability to understand and improve complex systems matter more.

Product development at Dalux

Our product teams bring developers, Product Managers, and Product Designers together.

Developers are expected to understand the problem being solved and contribute to finding the solution – not simply implement specifications handed to them.

As an experienced developer, you will have an important voice in balancing user value, usability, technical feasibility, business viability, and long-term technical health.

Our products are relied upon by professionals worldwide, making performance, stability, maintainability, and quality important parts of everyday engineering.

Your background

We expect that you:

• Have solid professional software development experience
• Hold a university degree in Computer Science, Software Engineering, IT, or a related technical field
• Have strong software engineering fundamentals
• Are comfortable owning complex technical problems and decisions
• Care about maintainability, reliability, performance, and quality
• Can navigate and improve an established codebase and architecture
• Enjoy technical sparring and sharing knowledge with other developers
• Are proactive and willing to challenge existing approaches when you see a better solution
• Understand the trade-offs between short-term delivery and long-term technical quality
• Are interested in how AI and new development tools can improve your effectiveness as an engineer

Experience with C#/.NET, Angular, cloud development, or AI-assisted development is an advantage, but we do not expect you to match every technology we use.

What You Can Expect From Dalux

Dalux is a software company at heart.

As an experienced developer, you can expect:

• Significant ownership of the software you build
• Real influence on technical solutions and engineering practices
• Skilled colleagues who enjoy technical discussion and constructive challenge
• Close collaboration between Engineering, Product Management, and Design
• Short paths from technical ideas to decisions and implementation
• Opportunities to drive improvements beyond your immediate product work
• An environment actively investing in AI-assisted software development
• High levels of trust and freedom in how you solve problems
• A social workplace with monthly events and employee-driven clubs

All Dalux software development takes place in-house at our headquarters in Vibenshuset, Copenhagen. Working together in person is an important part of how we collaborate, share knowledge, and make decisions quickly.

About Dalux

Dalux is a Danish software company founded in 2005 by Bent Dalgaard and Torben Dalgaard.

We build digital tools that make the construction industry smarter and more efficient. Using our own 3D BIM technology, Dalux develops user-friendly software used in more than 140 countries worldwide.

Our core technology is developed entirely in-house, giving our developers the opportunity to influence both the products and the technology behind them.

Join our Pizza & Beer event

Sign-up for our free Pizza & Beer event the 29th of October 2026 at Dalux from 16:00: Pizza and Beer with Dalux

During the event, you can hear more about Dalux and the career options through presentations and mingling - all while getting delicious Pizza and beer/drinks!

Application deadline

Ongoing