Rockefeller Philanthropy Advisors is hiring a Staff Software Engineer, iOS - Ads to lead the development of our mobile advertising platform. You will join a product-focused team building innovative mobile experiences that help millions make healthier choices. In this role, you will shape the mobile ad experience at scale, contribute to core architecture decisions, and mentor fellow engineers in a collaborative and inclusive environment.

What You'll Do

Lead development and implementation of ad-related features in the iOS app using Objective-C and Swift
Collaborate with Android, Web, Backend, and Infrastructure teams to ensure consistent and efficient integration
Provide technical guidance and advocate for engineering best practices across design, testing, and deployment
Build and maintain scalable codebases while improving architectural quality through thoughtful refactoring
Develop and execute automated testing strategies and CI/CD improvements
Serve as a mentor to other engineers and contribute to a collaborative, learning-first team culture
Research industry trends and integrate new ad formats or tools that enhance performance and user engagement

What We're Looking For

7+ years of professional iOS development experience with a strong portfolio of published apps
Advanced knowledge of Objective-C and Swift, UIKit, Foundation, and multithreaded programming
Proven track record in test-driven development and unit test creation
Experience with relational databases and build automation tools for iOS deployment
Strong problem-solving mindset and a pragmatic, product-focused approach to engineering
Excellent communication and cross-functional collaboration skills

Nice to Have

Experience with App Store Connect, payments infrastructure, or modernizing legacy codebases (Objective-C to Swift)
Familiarity with collaborative development styles such as XP, TDD, BDD, or Mob Programming