At a Glance
- Tasks: Design and optimise mobile ad mediation SDK for top gaming titles.
- Company: Join Kwalee, a leading gaming studio with 1.5 billion downloads.
- Benefits: Enjoy competitive salary, health cover, free snacks, and a dog-friendly office.
- Other info: Flexible working hours, generous holiday, and opportunities for professional growth.
- Why this job: Make an impact in the gaming industry while working with cutting-edge technology.
- Qualifications: 5+ years in software engineering, strong skills in Kotlin and Swift.
The predicted salary is between 60000 - 80000 £ per year.
At Kwalee, you’ll join a gaming powerhouse that boasts a mobile empire with 1.5 billion+ downloads alongside a thriving PC & Console division that has achieved numerous global chart-topping releases across Steam, Consoles, and Amazon, driving millions of Wishlists. Most recently publishing breakout hits such as The Precinct and Town to City. It’s a unique chance to bring your expertise to a global studio that dominates both the mobile, and the indie PC and Console space.
As well as a competitive salary we also offer:
- Private Medical Insurance
- Dental Insurance
- Life Assurance
- Royal London Pension
- A Free On-site Gym
- Dog-friendly Office
- LinkedIn Learning
- 25 holiday days + bank holidays
- 1 day extra holiday for each year of service capped at 5
As we continue to grow, we are now looking for a Senior Software Engineer – Ad Tech Mediation to join our Engineering team. As a Senior Software Engineer, you will be responsible for designing, developing, and optimising Kwalee’s mobile ad mediation SDK. You’ll play a key role in improving monetisation performance, ensuring SDK reliability, and driving scalable ad tech solutions. You will work closely with Publishing, Product, BI, and external partners to deliver high-impact results across our mobile games portfolio.
This is a permanent role based in our Leamington Spa studio, with 5 days per week on-site, where collaboration and technical excellence drive innovation.
Responsibilities
- Own the design, development, and maintenance of mediation components within the mobile SDK
- Develop, maintain, and optimise mediation and ad tech SDK components in Objective-C/SWIFT within Xcode for iOS and Kotlin/Java within Android Studio for Android.
- Integrate and maintain third-party ad network SDKs and monetisation tools.
- Improve SDK architecture for scalability, performance, and ease of integration.
- Support mediation optimisation including waterfalls, bidding, and segmentation strategies.
- Collaborate with BI and monetisation teams to translate performance data into technical improvements.
- Build and maintain CI/CD pipelines, automation tools, and internal development frameworks.
- Troubleshoot integration issues and support internal game teams.
- Ensure compliance with platform requirements (GDPR, ATT, Google Play, App Store policies).
- Establish monitoring, logging, and alerting for SDK performance and reliability.
- Mentor junior engineers and contribute to best practices, code quality, and team growth.
Requirements
- Minimum 5+ years of experience as a Senior Software Engineer, ideally within the Ad Tech space.
- Strong programming skills in Kotlin (Android Studio) and Swift/Objective-C (Xcode)
- Experience working with large-scale shared codebases and improving performance.
- Experience integrating and maintaining third-party SDKs and libraries.
- Proficiency in scripting languages such as Python and Bash.
- Experience building development tools, automation scripts, and internal pipelines.
- Strong debugging, problem-solving, and optimisation skills.
- Experience with Unity and C# is a plus.
- Ability to mentor and support junior developers in a collaborative environment.
- Comfortable working cross-functionally with publishing, development, and external partners.
Why Kwalee?
- Generous Holiday: Start with 25 days of annual leave, plus bank holidays. You'll also earn an extra day for every year of service, up to 5 years!
- Flexible Working: We offer core hours that allow you to work flexibly around your life, and a bank of 'Work From Home' days to use when you need them.
- Health Cover: Private medical cover, life assurance, a solid pension plan, and cover for dental and optical care.
- Recharge: Take advantage of our on-site gym and a supportive atmosphere that prioritises your wellbeing.
- Free Food & Drink: Fuel your day with unlimited free snacks and drinks.
- Gaming Goodies: Receive Steam codes for all our game releases!
- Dog-Friendly Office: Bring your furry friend to our vibrant, fun office.
- Office Location: Leamington Spa office location, with free parking and electric charging stations.
- Merch & Events: Get exclusive Kwalee merch, enjoy fun seasonal events, and stay informed with regular town halls.
- Growth & Learning: Full access to LinkedIn Learning to support your continuous professional development.
Our Commitment to Diversity & Inclusion
At Kwalee, we take pride in being an equal opportunity employer, where we believe that diversity and inclusion are essential to driving creativity. We are committed to creating a safe, welcoming, and supportive environment where everyone can thrive. Our culture is built on celebrating the diverse voices of our team members, fuelling innovation and strengthening our connection to our players. We are dedicated to advancing equity, diversity, and inclusion across all areas of life, including age, disability, gender identity, marriage and civil partnership, pregnancy and maternity, race, religion or belief, sex, and sexual orientation. We recognise the importance of self-development, career progression, and well-being in retaining our talented team. At Kwalee, we celebrate individuality and encourage everyone to bring their authentic selves to work.
Senior Ad Tech Mediation Engineer – On-site in Royal Leamington Spa employer: Kwalee Ltd
Kwalee is an exceptional employer that fosters a vibrant and inclusive work culture in Leamington Spa, where creativity and collaboration thrive. With generous benefits including private medical insurance, a dog-friendly office, and a commitment to employee growth through LinkedIn Learning, Kwalee not only prioritises your well-being but also supports your professional development in the dynamic gaming industry. Join us to be part of a team that celebrates diversity and innovation while working on exciting projects that reach millions worldwide.
StudySmarter Expert Advice🤫
We think this is how you could land Senior Ad Tech Mediation Engineer – On-site in Royal Leamington Spa
✨Tip Number 1
Network like a pro! Reach out to folks in the gaming industry, especially those at Kwalee. A friendly chat can open doors and give you insights that a job description just can't.
✨Tip Number 2
Show off your skills! If you've got a portfolio or GitHub with projects related to ad tech or game development, make sure to highlight it. It’s a great way to demonstrate your expertise beyond just words.
✨Tip Number 3
Prepare for the interview by brushing up on your technical knowledge and problem-solving skills. Practice coding challenges and be ready to discuss how you've tackled similar issues in past roles.
✨Tip Number 4
Apply through our website! It’s the best way to ensure your application gets seen. Plus, it shows you're genuinely interested in being part of the Kwalee team.
We think you need these skills to ace Senior Ad Tech Mediation Engineer – On-site in Royal Leamington Spa
Some tips for your application 🫡
Tailor Your CV:Make sure your CV is tailored to the Senior Ad Tech Mediation Engineer role. Highlight your experience with Kotlin, Swift, and Objective-C, and don’t forget to mention any relevant projects that showcase your skills in ad tech!
Craft a Compelling Cover Letter:Your cover letter is your chance to shine! Use it to explain why you’re passionate about working at Kwalee and how your background makes you a perfect fit for the team. Keep it engaging and personal!
Showcase Your Problem-Solving Skills:In your application, be sure to include examples of how you've tackled challenges in previous roles. We love seeing candidates who can think critically and come up with innovative solutions!
Apply Through Our Website:We encourage you to apply directly through our website. It’s the best way to ensure your application gets into the right hands and shows us you’re serious about joining our awesome team!
How to prepare for a job interview at Kwalee Ltd
✨Know Your Tech Inside Out
Make sure you brush up on your programming skills in Kotlin and Swift/Objective-C. Be ready to discuss your experience with large-scale shared codebases and how you've improved performance in past projects. This will show that you're not just familiar with the tech, but that you can truly excel in it.
✨Showcase Your Problem-Solving Skills
Prepare to share specific examples of how you've tackled integration issues or optimised SDK performance in previous roles. Highlight your debugging and problem-solving strategies, as this is crucial for the Senior Software Engineer role at Kwalee.
✨Collaboration is Key
Kwalee values teamwork, so be ready to discuss how you've worked cross-functionally with different teams in the past. Share experiences where you collaborated with publishing, development, or external partners to achieve high-impact results.
✨Mentorship Matters
As a senior engineer, you'll be expected to mentor junior developers. Think of ways you've supported others in your previous roles and be prepared to talk about your approach to fostering growth and best practices within a team.
