the LEGO Group
Senior Software Engineer (Mobile app)

How your CV stacks up
Upload your CV to see how well it fits this job role
?%
Job Description
Want to build the digital play experiences that bring LEGO products to life? This role helps ensure that strong mobile engineering becomes a foundational capability across our portfolio rather than something solved app by app. By driving architecture, improving development practices, and supporting both modern cross-platform and legacy applications, you’ll give the team the technical strength to move faster and build with confidence. Your work will directly support the broader organization’s ambition to deliver high-quality digital play experiences that children love and families trust.
Responsibilities
- Design, architect, develop, and maintain scalable cross-platform mobile applications for LEGO consumers.
- Lead technical decisions on app architecture, code structure, and platform strategy to support long-term scalability and maintainability.
- Maintain and evolve legacy Unity applications by delivering new features and supporting upcoming LEGO products and experiences.
- Partner closely with UI/UX designers to deliver world-class user experiences with high attention to quality, usability, and visual detail.
- Ensure high engineering standards across code quality, testing, automation, release processes, and application reliability.
- Collaborate with Quality Assurance and Consumer Service teams to identify issues, improve app performance, and enhance customer satisfaction across multiple products.
- Mentor and support other engineers on architectural patterns, scalable development practices, and modern cross-platform frameworks and tools.
Requirements
- Hands-on production experience with Unity or a similar cross-platform mobile app framework (Flutter, React Native, KMP, etc.).
- Strong software engineering fundamentals, including architecture, object-oriented design, testing, debugging, and performance optimization.
- Proven experience designing scalable, maintainable application architecture for consumer-facing mobile apps.
- Experience working with legacy codebases and modernizing existing applications while maintaining stability and compatibility.
- Ability to collaborate effectively across engineering, QA, design, and product teams to deliver high-quality user experiences.
- Strong understanding of code quality practices, automated testing, CI/CD, and release processes for mobile applications.
- Significant software engineering experience, with substantial experience developing mobile or cross-platform consumer applications.
Reasons to use Rodeo
I’m in my final year doing Economics and I don’t know whether to apply for grad schemes now or do a masters first. What do you think?
Honest answer — it depends on where you want to end up. A lot of top grad schemes (Big 4, civil service, banking) don’t need a masters. Let’s look at the ones you’d be competitive for now, and we can decide if a masters actually adds anything.
Also worth knowing: most autumn 2026 applications are open now. Timing matters more than you think.
Start with a chat, not a search bar
Grad scheme, placement, apprenticeship? Not sure what you want yet — that's fine. Your agent talks it through with you and turns "I have no idea" into a shortlist.
Graduate Consultant — 2026 Scheme
Why you're a good match
StrongYour economics background and your summer at a regional bank line up with what PwC looks for on the consulting scheme. Applications close in four weeks.
See breakdownIt searches the market for you
Every day your agent scans the market matching roles against what actually matters to you, not just keywords on a CV.
Why you're a good match
You’ve got the grades and the economics background, and your bank internship is exactly the experience this scheme looks for. Apply soon — deadlines close within the month.
Experience fit
Your summer at the bank plus your econometrics coursework map directly to the day-one responsibilities on this scheme — client modelling, market briefings, and deal support.
Only hits
No noise. No "maybe this fits." Just roles with a clear explanation of why they're right — and where to focus when applying.
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.


Get help with your application
Your very own career expert that helps elevate your application to the next level.
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 seeks to encourage applicants from all backgrounds (e.g. 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.
Children are our role models. Their curiosity, creativity and imagination inspire everything we do. Our founder Ole Kirk Kristiansen made his first wooden toy in 1932. He persevered against the odds until his business was a success. Constantly innovating, never compromising. Building, rebuilding, and striving for the best. It is this resilience and permanent sense of renewal that drives us forward. We are never still. We will always be creating, inventing, and having fun. Build your career brick by brick and play your part in continuing our mission to “inspire and develop the builders of tomorrow”.
“It took my CV and asked me questions relevant to understanding what kind of jobs to suggest for me. Suggestions were almost perfect. Jobs were exactly what I’ve been looking for.”
Jessica, London
Skills