Lead Engineer, Platform Tools (C/C++/C#/.NET)

LEGO Gruppe; Denmark; Hybrid; DKK 900,000 - 1,300,000; Full time

Benefits offered by this job

Family care leave

Life & disability insurance

Wellbeing resources

Colleague discount

Bonus scheme

Hybrid work policy (average 3 days in-

Job summary

LEGO Group is seeking a Lead Software Engineer in the Play Software department to deliver high‑quality software that enables developers to build interactive LEGO experiences. You will work with C#, .NET, AvaloniaUI and Python, ensure robust CI/CD, and mentor junior engineers.

This role embraces the ethos of ownership: You build it, you run it, you own it, and contribute to architectural decisions across toolchains and cloud integrations.

Qualifications

• Experience with C, C++ and ability to navigate codebases.
• Proficiency in C# .NET with performance and scalability optimization.
• Ability to contribute to architectural discussions and drive innovations.
• Experience with Git and a strong understanding of security and data privacy.

Responsibilities

• Develop and maintain modular, testable software using C#, .NET, AvaloniaUI and Python.
• Collaborate with cross‑functional teams to build tools for developers of LEGO experiences.
• Ensure high software quality via code reviews, automated tests and CI with emphasis on unit testing.

Skills

C/C++

C# / .NET

Git

Docker

AvaloniaUI

Python

Cloud endpoints

Architecture

Mentoring

Security & data privacy

Automation pipelines

Tools

AvaloniaUI

GitHub Actions

Docker

Python

Job description

Job Description

Are you a wizard with C/C++/C#/.NET?
Then we're looking for YOU!
The Play Software department at the LEGO Group focuses on enabling engaging and seamless digital experiences by developing innovative software tools and platforms. The Lead Software Engineer role supports this by delivering high-quality software solutions that empower developers to build interactive LEGO experiences efficiently.

Responsibilities

• Develop and maintain modular, testable, deployable, and easy-to-maintain software solutions for interactive LEGO products using a mix of C# .NET, AvaloniaUI, and Python to name a few.
• Collaborate with cross-functional teams to create tools that support developers in creating tech-enabled LEGO experiences, considering developer experience.
• Ensure high software quality through code reviews, automated testing, and continuous integration, with a strong emphasis on unit testing, while being comfortable with context switching between projects.
• Support the automation of pipelines and toolchain development to improve developer efficiency and quality of life, balancing between perfecting software and making rapid delivery.
• Engage in architectural discussions to drive innovation and technical excellence, making loosely coupled IT solutions.
• Mentor junior engineers, providing technical guidance and best practices, and fostering an environment eager to teach, learn, and experiment with an agile mindset.
• Embrace the "You build it, you run it, you own it" philosophy, ensuring ownership and accountability for the software developed.

Requirements

• Comfortable with C and C++ to a level that they can navigate codebases in these languages.
• Experience in software development with C# .NET, with a proven ability to optimize software for performance and scalability.
• Ability to engage in architectural discussions to drive innovation and technical excellence, seeing the red line across a tool portfolio and putting it into a system.
• Experience with Git and Git actions, and a strong understanding of security and data privacy.
• Demonstrated experience in automating development pipelines and improving developer toolchains, with knowledge of Docker.
• Comfortable working with cloud endpoints and backend integration.

Nice to have

• Understanding of DevOps practices and CI/CD pipelines.
• Proficiency in scripting languages like Python for automation tasks.
• Familiarity with cloud services and backend integration.

Applications are reviewed on an ongoing basis. However, please note we do amend or withdraw our jobs and reserve the right to do so at any time, including prior to any advertised closing date. So, if you're interested in this role we encourage you to apply as soon as possible.

What’s in it for you?

Here is what you can expect:

Family Care Leave

We offer enhanced paid leave options for those important times.

Insurances

– All colleagues are covered by our life and disability insurance which provides protection and peace of mind.

Wellbeing

We want our people to feel well and thrive. We offer resources and benefits to nurture physical and mental wellbeing along with opportunities to build community and inspire creativity.

Colleague Discount

– We know you\'ll love to build, so from day 1 you will qualify for our generous colleague discount.

Bonus

We do our best work to succeed together. When goals are reached and if eligible, you\'ll be rewarded through our bonus scheme.

Workplace

When you join the team you\'ll be assigned a primary workplace location i.e. one of our Offices, stores or factories. Our hybrid work policy means an average of 3 days per week in the office. The hiring team will discuss the policy and role eligibility with you during the recruitment process.

Children are our role models. Their curiosity, creativity and imagination inspire everything we do. We strive to create a diverse, dynamic and inclusive culture of play at the LEGO Group, where everyone feels safe, valued and they belong.

The LEGO Group is highly committed to equal employment opportunity and equal pay and seeksto encourage applicants from all backgrounds (eg. sex, gender identity or expression, race/ethnicity, national origin, sexual orientation, disability, age and religion) to apply for roles in our team.

The LEGO Group is fully committed to Children’s Rights and Child Wellbeing across the globe. Candidates offered positions with high engagement with children are required to take part in Child Safeguarding Background Screening, as a condition of the offer.

Thank you for sharing our global commitment to Children’s Rights.

Just imagine building your dream career.

Then make it real.

Join the LEGO® team today.