I am a Mobile Engineer with 5+ years of experience in Flutter and Swift, and I am a graduate of the Apple Developer Academy. I have shipped high-quality production apps with millions of users across the Google Play Store and Apple App Store, and I specialize in building scalable, high-performance mobile applications across the full development lifecycle. Beyond hands-on development, I take ownership of features, mentor teammates, and collaborate with cross-functional teams to drive impact. I lead end-to-end feature development, performance optimization, and in-app monetization, while partnering with product, design, and QA to deliver delightful experiences.

Muhammad Alkaff

I am a Mobile Engineer with 5+ years of experience in Flutter and Swift, and I am a graduate of the Apple Developer Academy. I have shipped high-quality production apps with millions of users across the Google Play Store and Apple App Store, and I specialize in building scalable, high-performance mobile applications across the full development lifecycle. Beyond hands-on development, I take ownership of features, mentor teammates, and collaborate with cross-functional teams to drive impact. I lead end-to-end feature development, performance optimization, and in-app monetization, while partnering with product, design, and QA to deliver delightful experiences.

Available to hire

I am a Mobile Engineer with 5+ years of experience in Flutter and Swift, and I am a graduate of the Apple Developer Academy. I have shipped high-quality production apps with millions of users across the Google Play Store and Apple App Store, and I specialize in building scalable, high-performance mobile applications across the full development lifecycle.

Beyond hands-on development, I take ownership of features, mentor teammates, and collaborate with cross-functional teams to drive impact. I lead end-to-end feature development, performance optimization, and in-app monetization, while partnering with product, design, and QA to deliver delightful experiences.

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Experience Level

Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Intermediate
Intermediate
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Language

Indonesian
Fluent
English
Advanced

Work Experience

Mobile Developer at RECRUITABLE
November 1, 2024 - Present
Collaborated with cross-functional teams (CEO, Sales, QAs, and other developers) to design and implement new features for the Android and iOS app. Identified and resolved bugs and performance issues to maintain a smooth user experience. Implemented and maintained in-app payments and subscriptions, contributing to revenue growth through in-app purchases and subscriptions.
Software Engineer - Mobile at KITALULUS
August 1, 2022 - July 1, 2024
Contributed to growing the app from zero to 1.6 million downloads on the App Store, achieving a 99.8% crash-free rate over the last six months and maintaining a 4.8 App Store rating. Collaborated with UI/UX designers, PMs, QAs, and developers to design and implement new features for the iOS app. Translated and built design wireframes into responsive code using Flutter and Swift. Identified and resolved bugs to ensure a smooth user experience. Helped develop advanced debugging tools to streamline SQA and engineering workflows.
iOS Developer at PRIXA.AI, PT PINTAR DATA GROUP
June 1, 2022 - August 1, 2022
Designed and implemented new app modules based on product requirements using Flutter, UIKit, and SwiftUI. Collaborated with UI/UX designers, PMs, QAs, and other developers to deliver features and improve app quality.
Mobile-App Developer at PT Travelana Mandiri Sejahtera
February 1, 2020 - June 1, 2022
Designed and built mobile apps from scratch using Flutter; resolved system issues and proposed new features. Published and delivered company apps to Google Play Store. Mentored juniors and interns to help them grow.
Software Engineer - Mobile at KITALULUS, Indonesia's #1 Job Platform
August 1, 2022 - July 1, 2024
Contributed to growing the app from zero to 1.6 million downloads on the App Store, achieving a 99.8% crash-free rate over the last six months (Firebase Crashlytics) and maintaining 4.8 App Store rating. Elevated the App Store rating from 4.4 to 4.8 within two weeks, earning over 4,000 positive reviews. Collaborated with UI/UX designers, PMs, QAs, and developers to design and implement new features for the iOS app. Translated and built design wireframes into responsive Flutter and Swift code. Identified and resolved bugs and performance issues to maintain a smooth user experience. Helped develop advanced tools to streamline debugging for SQA and engineering teams.
Mobile App Developer at PIP-POS
July 1, 2024 - October 1, 2024
Developed and maintained mobile applications for the PIP-POS project, collaborating with cross-functional teams to design features, fix bugs, and ensure smooth performance across Android and iOS.
Mobile Engineer at RECRUITABLE
November 1, 2024 - January 1, 2026
Led and owned the design and development of scalable mobile applications using Flutter, building core features from scratch and deploying them to both Android and iOS. Collaborated closely with cross-functional stakeholders, including the CEO, Sales team, QA, and fellow engineers, to design, implement, and iterate on product features. Owned feature development end-to-end, including implementation, testing, bug fixing, and performance optimization to ensure a smooth user experience. Designed, implemented, and maintained in-app payments and subscription flows across platforms. Contributed directly to company revenue growth by enabling in-app purchases and subscription-based monetization.

Education

Bachelor of Information System at Universitas Pembangunan Nasional (UPN) Veteran Surabaya
January 1, 2012 - January 1, 2019
Apple Developer Academy Certification at Apple Developer Academy – Surabaya, Indonesia
February 1, 2021 - December 1, 2021
Bachelor of Information System at Universitas Pembangunan Nasional (UPN) Veteran Surabaya
January 1, 2012 - January 1, 2019
Apple Developer Academy at Apple Developer Academy – Surabaya, Indonesia
February 1, 2021 - December 1, 2021
Bachelor of Information System at Universitas Pembangunan Nasional (UPN) Veteran Surabaya
January 1, 2012 - January 1, 2019
Apple Developer Academy at Apple Developer Academy
February 1, 2021 - December 1, 2021
Bachelor of Information System at Universitas Pembangunan Nasional (UPN) Veteran Surabaya
January 1, 2012 - January 1, 2019
Apple Developer Academy Certificate at Apple Developer Academy – Surabaya, Indonesia
February 1, 2021 - December 1, 2021
Bachelor of Information System at Universitas Pembangunan Nasional Veteran Surabaya
January 1, 2012 - December 31, 2019
Apple Developer Academy at Apple Developer Academy, Surabaya
February 1, 2021 - December 1, 2021

Qualifications

Apple Developer Academy Certification
February 1, 2021 - December 1, 2021
Apple Developer Academy Certificate
February 1, 2021 - December 1, 2021
Training for Trainer
October 1, 2017 - October 1, 2017
Public Speaking
December 1, 2017 - December 1, 2017
Design Thinking Workshop
December 1, 2018 - December 1, 2018
Design Sprint Workshop
October 1, 2018 - October 1, 2018
Mobile Development Bootcamp
November 1, 2019 - January 1, 2020
Apple Developer Academy
February 1, 2021 - December 1, 2021
Bachelor of Information System
January 1, 2012 - January 1, 2019
Apple Developer Academy Certificate
February 1, 2021 - December 1, 2021

Industry Experience

Software & Internet, Media & Entertainment, Professional Services, Education

Experience Level

Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Intermediate
Intermediate
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