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Christopher Sonny Pratama
Senior Ios Developer @PT. Infosys Solusi Terpadu
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WORK HISTORY
Senior Ios Developer @PT. Infosys Solusi Terpadu
Jakarta, ID
Successfully delivered features to production for Banking Client (Bank Jatim)• Successfully delivered features to production for Banking Client (CIMB Niaga)• Successfully delivered features to production for Pegadaian (Brand New Apps)• Collaborate with 25+ developers in team to determine logic and flow for features.• Using VIPER as architecture, RxSwift as composer for async and event based code, combinationbetween Swift Package Manager and CocoaPods for third-party libraries.
EDUCATION
Sekolah Tinggi Teknik Surabaya
Sarjana Komputer
ABOUT CHRISTOPHER SONNY PRATAMA
I am a Senior iOS Developer with over 5 years of experience building, scaling, and leading mobile application projects across industries, including banking, fintech, telecom, and media streaming. A graduate of the Apple Developer Academy (2019), I bring a strong foundation in analytical thinking, problem solving, and leadership. Throughout my career, I have- Led and mentored a team of 30+ developers, successfully delivering one of the largest projects for a state-owned enterprise (Telkom Indonesia - MyIndihome)- Delivered mission-critical features for top-tier clients, including CIMB Niaga, Bank of Thailand, and FOXi Media, using modern architectures (VIPER, MVVM, CleanSwift) and tools (RxSwift, Swift Package Manager, CocoaPods)- Spearheaded performance improvements (20% faster responsiveness) and implemented secure and innovative features, such as screenshot prevention, Face ID, OCR for ID verification, and real-time livestream functionalities- Significantly increased unit test coverage (from 20% to 85%) to ensure app reliability and maintainability. My expertise lies in iOS app development (Swift & Objective-C), system architecture, and team leadership, with hands-on experience in CI/CD pipelines, Firebase, and modularized project structures. I thrive in collaborative, remote-first environments, where I can combine my technical expertise and leadership skills to deliver high-quality, user-focused mobile applications. Let’s connect if you’re looking for a dedicated iOS professional to build, scale, or optimize mobile solutions.
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