Renjun Li is a Senior Software Consultant at ThoughtWorks, with 9 years of professional experience in iOS application development. His expertise spans Swift and Objective-C, with a strong background in large-scale iOS development, architecture design, performance optimization, and cross-functional team collaboration.

In the Porsche App project, he served as the iOS Lead, managing the Home Charging team and driving critical technical decisions. He collaborated closely with the German development team to ensure the successful delivery of high-quality features. In the SC Mobile project, he led the core iOS feature development team, working on multi-factor authentication, notification systems, and configuration management, while optimizing the build process to enhance performance and user experience. He also contributed to the Chinese translation of iOS Development at Scale, further deepening his understanding of best practices for enterprise-level iOS development.

Beyond enterprise solutions, Renjun has experience in C++ image rendering and audio/video processing. He previously led the development of photo and video editing applications at Camera360, several of which were featured on the App Store and attracted hundreds of thousands of users.

He is proficient in CI/CD automation tools such as Fastlane, GitHub Actions, and Jenkins, and specializes in Clean Architecture, TDD, and modular development. He is also experienced with agile methodologies and OKR-driven team management.

Renjun focuses on improving both technical quality and team efficiency, consistently delivering robust and scalable iOS solutions for global clients.

App	Description
	Mix Filter Master A photo editing app designed for portrait photography enthusiasts, launched in both China and the US markets, and ranked among the top 20 apps on the App Store.
	Salad Video A video editing tool that generates short videos from photo templates.
	Porsche App The Porsche App was developed by Porsche China's digital department (PDCN) to serve Porsche vehicle owners. This project is a global initiative, with team members from China and Germany, and the working languages are Chinese and English.
	SC Mobile SC Mobile is a Super App developed for Standard Chartered Digital Bank in Singapore, serving both personal and corporate banking customers (CPBB). The project team consists of 5 squads, with members from India, China, and Singapore.

Cover	Description
	大规模iOS开发 This book is the translated Chinese edition of iOS Development At Scale. He participated in translating the second part of the book, covering application architecture and design patterns (10 chapters in total), published by Mechanical Industry Press in January 2025.