Freelance iOS Developer Resume
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Charles Bloomberg
PROFESSIONAL SUMMARY
Accomplished freelance iOS Developer with over 5 years of experience in designing and optimizing user-centric apps. Expert in Swift, Objective-C, and modern development frameworks, delivering high-impact results.
PROFESSIONAL Experience
Freelance iOS Developer | Company A
January 2018 — Present, San Francisco, USA
• Developed 30+ iOS applications using Swift and Objective-C with consistent 5-star ratings on the App Store.
• Implemented advanced UI/UX designs for various client applications, reducing bounce rates by 25% over a 6-month period.
• Built custom API integrations to sync data in real-time with server-side applications using JSON and REST.
• Enhanced app performance by optimizing the codebase, achieving a 40% increase in speed and efficiency.
• Collaborated with cross-functional teams to adhere to project timelines, ensuring a client satisfaction rate of 95%.
• Implemented advanced UI/UX designs for various client applications, reducing bounce rates by 25% over a 6-month period.
• Built custom API integrations to sync data in real-time with server-side applications using JSON and REST.
• Enhanced app performance by optimizing the codebase, achieving a 40% increase in speed and efficiency.
• Collaborated with cross-functional teams to adhere to project timelines, ensuring a client satisfaction rate of 95%.
iOS Developer | Company B
March 2016 — December 2017, New York, USA
• Spearheaded the development of a flagship mobile application downloaded by over 1 million users globally.
• Increased app stability by 30% through continuous integration using Jenkins and rigorous testing methodologies.
• Led a team of 5 developers in agile sprints, delivering features under budget and ahead of schedule.
• Engineered efficient code for data-heavy apps, cutting loading times by 50% using Core Data optimization.
• Increased app stability by 30% through continuous integration using Jenkins and rigorous testing methodologies.
• Led a team of 5 developers in agile sprints, delivering features under budget and ahead of schedule.
• Engineered efficient code for data-heavy apps, cutting loading times by 50% using Core Data optimization.
iOS Developer Intern | Company C
June 2015 — February 2016, Boston, USA
• Assisted in developing a community app reaching 10,000+ monthly active users within three months post-launch.
• Researched and integrated the latest iOS frameworks to enhance functionality and user engagement.
• Optimized existing code, improving overall app performance by 15%, and reducing memory consumption significantly.
• Researched and integrated the latest iOS frameworks to enhance functionality and user engagement.
• Optimized existing code, improving overall app performance by 15%, and reducing memory consumption significantly.
Junior iOS Developer | Company D
August 2013 — May 2015, Austin, USA
• Built and maintained multiple apps, ensuring seamless deployment to the App Store with no rejections.
• Collaborated with design teams to create intuitive user interfaces, boosting app downloads by 20%.
• Managed end-to-end testing process, ensuring a bug-free user experience on diverse iOS devices.
• Collaborated with design teams to create intuitive user interfaces, boosting app downloads by 20%.
• Managed end-to-end testing process, ensuring a bug-free user experience on diverse iOS devices.
Education
Bachelor of Science in Computer Science | University of California, Berkeley
May 2013
Expert-Level Skills
Swift, Objective-C, Xcode, iOS SDK, CoreData, JSON, RESTful APIs, UI/UX Design, Agile Methodologies, Jenkins, Problem Solving, Team Collaboration, Client Communication