Highly Complex Cross-Platform Action Game

I am seeking an experienced game developer to create "Urban Pursuit: Express Delivery," a mobile game that merges strategic gameplay with immersive urban environments. This game will place players in the role of a delivery rider navigating the vibrant and ever-changing streets of major global cities. Key requirements: Design a captivating simulation game featuring various cities, each with unique levels and delivery challenges. Ensure flawless functionality on both Android and iOS platforms to provide a seamless user experience across devices. Develop an engaging and intuitive user interface that enhances player interaction and navigation through the game. Integrate in-app purchases and advertisements strategically to ensure monetization while maintaining an enjoyable gaming experience. Ideal candidate should have: Demonstrable experience in developing simulation games, with a focus on mobile platforms. A robust portfolio showcasing successful cross-platform games, preferably with elements of real-time strategy or urban simulation. Expertise in crafting user-friendly game interfaces, enhancing the overall player engagement and retention. A thorough understanding of in-app purchase mechanics and effective ad integration that supports gameplay rather than disrupts it.