Senior Software Engineer, GenAI Foundation Execution

Job Description

Working at the LEGO Group Generative AI Foundation Execution team is a hugely exciting experience. And a superb opportunity to work with innovative technology in a diverse and upbeat engineering team. We are passionate about empowering developers with the vital resources tools and mentorship they need to harness the full potential of Gen AI technologies.

Join our team at the forefront of Gen AI revolution and help us build playful innovative solutions for the LEGO Group!

Core Responsibilities

Come participate in design and build robust scalable data and AI infrastructure that supports Generative AI solutions. Ensuring seamless integration of data sources pipelines storage and model-serving capabilities. Provide hands-on engineering support to teams piloting and scaling GenAI use cases diagnosing data performance and architectural challenges and refining solutions based on real-world feedback.

Develop and improve automation frameworks and pave paths that optimize data and AI workflows. Ensuring reliability observability and timely availability for downstream applications. Collaborate closely with GenAI platform engineers to integrate models tools and applications into the existing ecosystem.

Continuously evaluate emerging GenAI technologies frameworks and standard methodologies and pragmatically introduce them where they create real value. Mentoring junior engineers and collaborating across teams to foster a culture of engineering excellence learning and sharing. Contribute beyond code by supporting developer engagement internal events documentation communication and branding that strengthen the overall GenAI community.

Play your part in our team succeeding

At the LEGO Group our GenAI Foundation Execution Team is at the forefront of crafting and deploying scalable GenAI solutions tailored to address our needs. With a vision anchored in innovation and scalability we design service offerings that empower departments across the enterprise to harness the potential of GenAI.

Our mission is to empower developers with the vital resources tools and mentorship they need to harness the full potential of our products technologies or platforms. This translates into a multitude of responsibilities ranging from technical advocacy where we champion the merits and intricacies of our technological offerings to content creation ensuring developers have access to top-tier educational materials.

We also pride ourselves on our community building establishing a vibrant ecosystem of developers and forging strategic partnerships that drive mutual growth. Our collaborative approach ensures that every solution is not only technically sound but also aligns seamlessly with business objectives.

This position will be in our LEGO Hub in Copenhagen soon moving to Postbyen offering an exciting inspiring and flexible work environment and a little fun play as well!

Do you have what it takes

The preferred candidate is an experienced Senior Software Engineer with a consistent track record of building and operating production-grade backend or fullstack systems. Bring hands-on experience and demonstrate deep technical ownership from continuous improvement.

The successful candidate has advanced proficiency in Python including designing and developing highperformance services using frameworks such as FastAPI. Are comfortable building APIs that are reliable observable secure and you understand the trade-offs involved in scaling them in real-world environments.

Have hands-on experience with Generative AI systems including implementing or integrating:

• RAG (RetrievalAugmented Generation) pipelines.
• GenAI plugins or agent-based workflows.
• Working with multi-agent frameworks (e.g. AutoGen LangGraph/LangChain or similar) to coordinate agents handle handoffs and lead stateful orchestration.
• Designing and implementing microservice-based architecture.
• Defining building and consuming OpenAPI/REST APIs.
• Establishing and maintaining CI/CD pipelines with strong quality gates and applying Infrastructure as Code principles (e.g. Terraform).

You are comfortable working with modern cloud platforms such as AWS or Azure and understand how to build scalable secure cost-aware and resilient cloud-native services.

To succeed in this role you preferably have competence within the following:

• Experience contributing to open-source projects internal frameworks or research and innovation initiatives.
• Familiarity with data privacy regulations and responsible AI practices.
• Knowledge of AI compliance and governance including topics such as risk classification guardrails documentation audit ability and regulatory considerations for AI systems.
• Advanced expertise in prompt design and prompt engineering with a deep understanding of different prompting techniques patterns and trade-offs.

Please note: If you require any reasonable accommodation or adjustments throughout the application process please let us know. We will work with you to meet your needs.

This position is Manager Specialist level. Relocation support is not offered.

#LI-JT1

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 youre interested in this role we encourage you to apply as soon as possible.

Whats 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 youll 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 youll be rewarded through our bonus scheme.

Workplace - When you join the team youll 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 Childrens 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 Childrens Rights.

Just imagine building your dream career.

Then make it real.

Join the LEGO team today.