Find a job 
Featured Companies 
Featured Universities 
For Companies At a Glance
- Tasks: Create seamless mobile experiences for iOS and Android, leading complex engineering initiatives.
- Company: Join Jagex, a leader in gaming with a collaborative and innovative culture.
- Benefits: Enjoy private healthcare, flexible hours, generous leave, and a performance bonus.
- Why this job: Shape the future of gaming while mentoring a talented team in a dynamic environment.
- Qualifications: Strong mobile development experience and a knack for mentoring engineers.
- Other info: Flexible working options and excellent career growth opportunities await you.
The predicted salary is between 48000 - 72000 £ per year.
Office location: Cambridge, UK – This position offers flexible working options, including predominantly remote work. Applicants should be based (or willing to relocate) within a comfortable commuting distance of our office to attend onsite as required.
About the role
Are you an experienced mobile engineer who excels at creating seamless, secure, and high‑performing mobile experiences across iOS and Android platforms? As a Senior Mobile Engineer in our Player Gateway team, you’ll play a pivotal role in shaping how players first engage with Jagex titles, from their initial visit through to becoming active, returning members of our game communities. You’ll work at the intersection of mobile engineering, platform optimisation, and player experience, delivering scalable and secure solutions that power key touchpoints across the RuneScape franchise. You’ll act as a subject matter expert, leading the delivery of complex mobile solutions while mentoring and developing a talented team of engineers and driving engineering excellence across the wider organisation.
What you’ll be doing:
- Contribute across the full Software Development Lifecycle, delivering secure‑by‑design, production ready code supported by automated testing, peer review, and reliable deployment practices.
- Act as a subject matter expert, ensuring technical solutions meet product needs and align with Jagex engineering standards.
- Take ownership of the quality and delivery of complex engineering initiatives, ensuring outcomes meet stakeholder expectations.
- Collaborate across teams and disciplines to deliver scalable, high‑impact technical solutions.
- Proactively identify opportunities to improve systems, services, and engineering processes, driving continuous improvement across the organisation.
- Support team effectiveness by helping engineers break down work into clear, value‑driven increments and contributing to a strong, resilient production environment.
- Participate in an on‑call rotation to troubleshoot and resolve production issues when required.
What we’re looking for:
- Strong experience with native mobile development across both iOS (Swift / Objective‑C) and Android (Kotlin / Java), with a deep understanding of platform constraints such as lifecycle, permissions and store policies.
- Proven experience delivering secure, maintainable mobile architecture that interfaces cleanly with backend microservices.
- Experience with automated testing, CI/CD pipelines, version control systems, and performance profiling tools.
- Strong debugging, optimisation and problem‑solving skills, with the ability to navigate established codebases.
- Demonstrable ability to mentor engineers and contribute to improving engineering standards and best practices.
- Experience with C++ would be an advantage.
What we offer:
- Private Healthcare, including Dental Plan.
- Discretionary annual performance bonus.
- Minimum 6% Pension contributions.
- Life Insurance.
- Enhanced family leave policies from day 1.
- Flexible working hours.
- 25 days annual leave +
Senior Mobile Engineer - Core Tech in Cambridge employer: Jagex Ltd
Contact Detail:
Jagex Ltd Recruiting Team
StudySmarter Expert Advice 🤫
We think this is how you could land Senior Mobile Engineer - Core Tech in Cambridge
✨Tip Number 1
Network like a pro! Reach out to your connections in the industry, attend meetups, and engage with online communities. You never know who might have the inside scoop on job openings or can refer you directly.
✨Tip Number 2
Show off your skills! Create a portfolio showcasing your best mobile projects. Whether it's apps you've developed or contributions to open-source projects, having tangible evidence of your expertise can really set you apart.
✨Tip Number 3
Prepare for interviews by practising common technical questions and coding challenges. Use platforms like StudySmarter to brush up on your skills and get comfortable with problem-solving under pressure.
✨Tip Number 4
Apply through our website! It’s the best way to ensure your application gets seen by the right people. Plus, it shows you're genuinely interested in joining our team at Jagex.
We think you need these skills to ace Senior Mobile Engineer - Core Tech in Cambridge
Some tips for your application 🫡
Tailor Your CV: Make sure your CV reflects the skills and experiences that match the Senior Mobile Engineer role. Highlight your native mobile development experience and any relevant projects you've worked on, especially those involving iOS and Android.
Craft a Compelling Cover Letter: Use your cover letter to tell us why you're passionate about mobile engineering and how you can contribute to our Player Gateway team. Share specific examples of your work that demonstrate your expertise and problem-solving skills.
Showcase Your Technical Skills: Don’t forget to mention your experience with automated testing, CI/CD pipelines, and any performance profiling tools you've used. We want to see how you’ve applied these in real-world scenarios, so be specific!
Apply Through Our Website: We encourage you to apply directly through our website for the best chance of getting noticed. It’s the easiest way for us to keep track of your application and ensure it reaches the right people!
How to prepare for a job interview at Jagex Ltd
✨Know Your Tech Inside Out
Make sure you brush up on your knowledge of native mobile development for both iOS and Android. Be ready to discuss your experience with Swift, Objective-C, Kotlin, and Java, as well as any challenges you've faced and how you overcame them.
✨Showcase Your Problem-Solving Skills
Prepare to share specific examples of how you've tackled complex engineering issues in the past. Highlight your debugging and optimisation skills, and be ready to explain your thought process when navigating established codebases.
✨Demonstrate Your Leadership Abilities
As a Senior Mobile Engineer, you'll be expected to mentor others. Think of instances where you've guided team members or improved engineering standards. Be prepared to discuss how you can contribute to a strong, resilient production environment.
✨Engage with the Company Culture
Research Jagex and their game titles, especially RuneScape. Show genuine interest in their player community and how your role can enhance their experience. This will demonstrate that you're not just looking for a job, but are excited about contributing to their mission.