Client wanted to experiment with gamified features to boost engagement Needed real-time audio communication: users could create/join rooms, record, upload, and listen to audio messages UI had to update instantly as users entered/left rooms or interacted with messages Small team working part-time (CTO, 2 backend engineers, designer, product owner), requiring strong external support

Built a new infrastructure to handle audio rooms and large volumes of concurrent users Implemented functionality for recording and playback of audio messages Delivered UX for the iOS app according to product documents and design specs Tested multiple UI approaches to ensure smooth and engaging user experience Added gamification features with rich audiovisual elements to increase retention Integrated in-app analytics to track and understand user behavior

Released the Marine Snow iOS app on time, achieving a 5-star App Store rating Delivered a stable and secure infrastructure capable of supporting many simultaneous users Created a strong product foundation for future feature growth and user engagement