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Charles Bloomberg

San Francisco, USA

charlesbloomberg@gmail.com

(621) 799-5548

in/cbloomberg

PROFESSIONAL SUMMARY

Detail-oriented App Developer with a strong background in developing scalable mobile applications and tailoring app functionalities to user needs. Proven expertise in various programming languages and a track record of improving app performance and user engagement.

PROFESSIONAL Experience

Senior App Developer | Company A

January 2019 — Present, Mountain View, USA

• Engineered a feature-rich mobile app using Kotlin and Java, leading to a 20% increase in user engagement over 12 months by implementing advanced analytics and user feedback mechanisms.
• Implemented Agile methodologies and CI/CD pipelines, reducing app deployment time by 30% using Jenkins and Git.
• Spearheaded a project to migrate legacy code to modern frameworks, enhancing app performance by 35% and reducing crashes by 40% using tools like Firebase and Crashlytics.
• Developed and maintained RESTful APIs to integrate third-party services, resulting in a 25% increase in feature richness and user retention.
• Managed a team of 5 junior app developers, conducting weekly code reviews and mentoring, which improved code quality and development speed by 15%.

App Developer | Company B

May 2015 — December 2018, Redmond, USA

• Built over 10 high-performance mobile applications using Swift and Objective-C, increasing user base by 50% across various demographics.
• Collaborated with UX/UI designers to implement user-centric designs, resulting in a 30% increase in user satisfaction according to post-launch surveys.
• Launched automated testing frameworks, reducing bug occurrence by 25% and ensuring robust app performance using XCTest and Appium.
• Optimized app functionalities and load times, achieving a 40% improvement by refining backend queries and leveraging caching mechanisms.

Junior App Developer | Company C

July 2013 — April 2015, Austin, USA

• Assisted in the development of 8 mobile applications with end-to-end functionalities using Python and Django, seeing a user growth of 30%.
• Performed comprehensive code reviews and unit testing, reducing app crash rates by 20% using tools like JIRA and Bitbucket.
• Achieved a 15% increase in app download rates by integrating social media sharing features using Facebook SDK and Twitter API.

Intern App Developer | Company D

June 2012 — June 2013, Portland, USA

• Contributed to the development of 5 mobile apps, collaborating with senior developers in coding and debugging using Java and XML.
• Ensured top-notch app performance by executing rigorous testing and troubleshooting, improving app reliability by 20%.
• Researched and proposed new technologies and tools, resulting in a 10% reduction in development time and improved code maintainability.

Education

Bachelor of Science in Computer Science | Stanford University

June 2012

Expert-Level Skills

Kotlin, Java, Swift, Objective-C, Python, Django, RESTful APIs, Firebase, Crashlytics, Jenkins, Git, Agile methodologies, CI/CD pipelines, UX/UI design, Automated testing, XCTest, Appium, JIRA, Bitbucket, Facebook SDK, Twitter API, team leadership, project management

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Career Contributor

Total Users (this is annoying to update)

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Interview Rate

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