Refinery89 is looking for a passionate and experienced Senior Mobile Developer to join our fast-growing Mobile team. If youre excited about building scalable SDKs integrating cutting-edge monetization tools and helping shape the future of mobile AdTech wed love to meet you.
What Youll Do:
- Design build and maintain high-performance mobile SDKs for Android iOS and Unity environments.
- Lead the integration of mediation platforms like Google AdMob IronSource and others to ensure top-tier monetization performance.
- Work hands-on with Prebid Server to implement both client-side and server-side bidding solutions.
- Ensure SDK scalability stability and performance across platforms through rigorous testing and optimization.
- Collaborate closely with Product AdOps and Data teams to unlock revenue opportunities and fine-tune yield strategies.
- Contribute to internal documentation code reviews and the continuous improvement of development practices.
- Leverage GAM360 and other programmatic platforms to drive efficient ad delivery and revenue growth.
- Stay current with emerging mobile AdTech trends and propose solutions that keep our SDKs ahead of the curve.
Who Were Looking For:
- Experienced Mobile Builder: 5 years in mobile development with deep experience in Kotlin (Android) Swift (iOS) and Unity.
- AdTech Native: Strong understanding of ad mediation monetization strategies and RTB environments.
- SDK Specialist: Proven track record building and maintaining mobile SDKs at scale.
- Prebid & Mediation Know-How: Hands-on experience with Prebid Server AdMob and/or IronSource.
- Collaborative Developer: Comfortable working across teams and aligning technical solutions with business objectives.
- Detail-Oriented Engineer: Clean code strong documentation habits and scalable design thinking.
Nice-to-Haves:
- Experience with hybrid frameworks like React Native or Flutter.
- Familiarity with analytics tools (e.g. Firebase AppsFlyer Adjust).
- Exposure to CI/CD processes and mobile deployment pipelines.
- Contributions to open-source projects or developer communities.
What You Can Expect from Us:
- Competitive salary package based on experience and seniority.
- Remote-first role with flexibility work from anywhere.
- Bonus structure tied to performance and impact.
- Ownership and autonomy in building key products used across mobile platforms.
- A feedback-driven flat and fast-paced team culture.
- 24 holidays per year your own equipment and Friday half-days.
- Annual team retreat and ongoing learning & development support.
Ready to build the future of mobile AdTech with us
Apply today and help us shape the next generation of monetization technologies!