Senior Software Engineer Unity Runtime / XR PlatformsSenior Software Engineer Unity Runtime / XR Platforms
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Technology & Engineering Division Senior Advisor
Were hiring a Senior Software Engineer (contract) to join a team working on next-gen immersive platform experiences think runtime engine, asset pipelines, and performance tooling for large-scale 3D environments.
You\'ll be part of a crew who work behind the scenes: the folks who make sure real-time 3D worlds run smoothly, load correctly, and dont fall over. This is not a game dev or content creation role its core engineering.
The Offer:
- Annual Salary up to 140,000 doe and location
- 6-month contract - inside IR35 - PAYE - paid on a weekly basis
- 3 Days onsite - Hybrid work model - offices based in Central London
What you\'ll do:
- Tackle system reliability issues across a complex Unity/C#/C++ stack
- Build tools and diagnostics to improve performance and stability
- Work on the runtime engine powering multiplayer, spatial transitions, and real-time rendering
- Collaborate with global engineering teams and ship code at scale
What we\'re looking for:
- 10+ years engineering experience system/product generalist mindset
- Deep hands-on experience with Unity (C#) in non-game contexts
- Solid C++ and Windows dev experience
- Proven work on runtime engines, performance tooling, or infrastructure for 3D apps
- Strong debugging, profiling, and CI/CD knowledge
- Bonus: Familiar with VR/AR platforms, build systems (Buck, Bazel), and large-scale codebases
Were keeping it lean if you know your way around real-time 3D platforms and have shipped complex systems at scale, I want to hear from you.
Apply Now with your CV for more information. Som | som@principlehr.com
Seniority level
- Seniority levelMid-Senior level
Employment type
- Employment typeContract
Job function
- Job functionInformation Technology, Product Management, and Consulting
- IndustriesTechnology, Information and Media, Software Development, and Information Services
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Senior Software Engineer Unity Runtime / XR Platforms (London) employer: Principle
Join a leading global technology organisation that values its employees and fosters a collaborative work culture. With a focus on professional growth, you will have the opportunity to enhance your skills in contingent workforce operations while enjoying a hybrid work model in Reading, Berkshire. The company offers competitive salaries and a supportive environment that encourages innovation and teamwork, making it an excellent place for those seeking meaningful and rewarding employment.
StudySmarter Expert Advice🤫
We think this is how you could land Senior Software Engineer Unity Runtime / XR Platforms (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 Principle 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 Principle.
✨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 Principle.
✨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 Principle 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!
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 Principle.
Craft a killer cover letter:Your cover letter is your chance to stand out—make it personal! Explain why you want to work at Principle 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 Principle
✨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 Principle 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.
