At a Glance
- Tasks: Create and enhance mobile games using Unity, collaborating with designers and engineers.
- Company: Join LEGO Digital Play, a vibrant and innovative mobile game studio.
- Benefits: Enjoy a hybrid work model, competitive salary, and opportunities for creative growth.
- Other info: Collaborative culture with a focus on creativity and real impact.
- Why this job: Be part of building engaging games for players worldwide with a beloved brand.
- Qualifications: Experience in Unity and mobile game development, plus a passion for innovation.
The predicted salary is between 60750 - 74250 £ per year.
At LEGO Digital Play, we’re bringing the LEGO® System-in-Play to the digital builders of tomorrow.
We’re building the LEGO brand’s digital home: a place where builders of every age can create, share and discover, held to the standard of craft the LEGO brand is known for.
We are at an early phase of this new company, offering a unique opportunity to build a new entity for the world's most beloved and trusted brand.
Our culture is open, collaborative, intellectually rigorous, and creatively vibrant.
Offroad Games is a mobile game studio based in London, part of LEGO Digital Play.
Founded by experienced game developers, we make fun, engaging mobile games for players around the world.
We value speed, camaraderie, creativity and real impact.
Role Summary
We are looking for a Senior Client Developer with deep Unity expertise and a hands‑on, fast‑moving approach to building mobile games.
You'll bring technical recommendations, then build, test and maintain what you propose.
Working closely with engineering leadership, you'll extend an established Unity technology base and use AI‑assisted development tools as part of how you work.
Key Responsibilities
- Build game features end to end, working with designers to take each feature from idea to players.
- Build, debug, ship and monitor features in the mobile client.
- Improve shared client code libraries alongside the wider client development team.
- Create and maintain AI‑assisted automation that makes development and operations workflows more efficient.
- Build supporting infrastructure, including automated testing, integration with live‑ops services and performance metrics.
- Analyse and fix key areas of mobile client performance.
- Recommend improvements based on the metrics gathered through tooling.
- Own the systems you build: design them with the right colleagues, then maintain and improve them over time.
- Required Qualifications
- Substantial experience developing games in Unity with C#.
- A track record of shipping at least one mobile title.
- Experience working in large, long‑lived codebases.
- Current, hands‑on use of AI‑powered coding assistants to speed up development, code review and testing.
- Strong knowledge of mobile device performance, including CPU and GPU usage, memory, loading times and stability.
- A track record of building systems or infrastructure that a game depends on to run.
- An active interest in advances in mobile games, AI tools and third‑party technology.
- Preferred Qualifications
- Experience with off‑the‑shelf live‑ops platforms.
- Experience with cloud providers such as Firebase, Google Cloud Platform or AWS.
- Confidence giving feedback on both the technical and creative sides of prototypes.
- A broad understanding of modern mobile game development, and a willingness to challenge existing ways of working.
- Hybrid Working
This role is based in our London office. Our hybrid working policy is three days a week in the office.
Senior Client Developer in London employer: Lego
LEGO Group is an exceptional employer, offering a dynamic work culture that fosters creativity and collaboration in the heart of London. With a flexible hybrid model, employees enjoy a balanced work-life integration while having access to robust professional development opportunities that empower them to grow within the company. Joining LEGO means being part of a purpose-driven team that values innovation and strives to make a positive impact through engaging consumer experiences.
StudySmarter Expert Advice🤫
We think this is how you could land Senior Client Developer in London
✨Join Local Tech Meetups
Get out there and mingle with fellow developers by joining local tech meetups. It’s a fantastic way to meet people who might be working at Lego or know someone who does. Plus, you can pick up some trendy tech skills and trends while you're at it!
✨Contribute to Open Source Projects
Show off your coding chops by jumping into open-source projects. Not only does this give you practical experience, but it also gets you noticed in the dev community. You'll create a killer portfolio that speaks volumes about your skills to Lego.
✨Tap into Online Developer Communities
Don’t underestimate the power of online developer communities like GitHub, Stack Overflow, and even Reddit. Participate in discussions, share your projects, and build your visibility. We can often find opportunities through these channels that can lead to a full-time gig at companies like Lego.
✨Explore Job Boards Specifically for Tech Roles
Keep your eyes peeled on job boards that focus on tech roles. Sites like TechCareers or Stack Overflow Jobs can often have listings for companies like Lego that might not show up on broader job sites. Make it a habit to check these regularly, and don’t hesitate to apply directly through our website!
We think you need these skills to ace Senior Client Developer in London
Some tips for your application 🫡
Show off your coding skills:When applying for a software engineering role, it's super important to showcase your coding skills. Make sure your CV includes your tech stack, any relevant programming languages you’re comfortable with, and examples of projects you've worked on. If you have a GitHub profile, link it up! We love to see code in action.
Tailor your portfolio:For a full-time role, we’d expect to see some solid examples of your work in your portfolio. Make sure to include at least two or three projects that highlight your problem-solving skills and your ability to work with different technologies. Focus on the projects that are most relevant to the position at Lego.
Craft a killer cover letter:Your cover letter is your chance to stand out—make it personal! Explain why you want to work at Lego and how your skills align with the role. Show us your passion for software development. We dig enthusiastic candidates who understand the value of collaboration and continuous learning!
Be clear and concise:When it comes to writing your CV and cover letter, clarity is key. Avoid jargon that could confuse us and stick to simple, direct language. Highlight your achievements with quantifiable results where possible, and keep everything easy to read. A well-organised application goes a long way!
How to prepare for a job interview at Lego
✨Brush Up on Your Coding Skills
For a full-time software engineering role, it's crucial that we stay sharp with our coding abilities. Expect technical questions that might involve solving problems on the spot or discussing algorithms. Practise on platforms like LeetCode or HackerRank to get comfortable with the types of questions that often come up.
✨Know Your Tools and Frameworks
Make sure we’re well-acquainted with the tools and technologies listed in the job description. Familiarise ourselves with any specific frameworks or programming languages mentioned. If Lego uses React or Node.js, for instance, be ready to discuss how we’ve used them in previous projects or coursework.
✨Showcase Your Projects
Bring along a portfolio that highlights our best work. This could be code samples, GitHub repositories, or any side projects we’ve built. Make sure we can talk through our thought process for each project, especially the challenges we faced and how we solved them—this shows our problem-solving skills in action.
✨Prepare for Behavioural Questions
While technical skills are key, full-time positions also require cultural fit. Be ready to discuss our previous experiences and how we handle teamwork, conflict, and deadlines. Brush up on the STAR method—Situation, Task, Action, Result—to clearly articulate our past experiences when discussing how we've contributed to a team.
