Daniel Okafor
Mobile Developer
daniel.okafor@email.com · Seattle, WA · linkedin.com/in/example
Summary
Mobile Developer with 6+ years of experience across iOS Development, Android Development, and Mobile UI. Combines hands-on Swift work with measurable results, and tailors every application to the posting — the same habit that gets this resume past ATS filters.
Experience
Senior Mobile Developer · Lumen & Field
2022 – Present
- Coordinated the iOS and Android release trains, cutting cold-start time to under 2400 milliseconds — with ios development the constraint that mattered most.
- Rebuilt offline sync and conflict resolution alongside 2 colleagues, reducing crash-free session rates from below 98% to 93%.
- Led push notification and deep-link handling, rebuilding the mobile UI step from scratch and shrinking app size by 46%.
- Ran app store submission, review and phased rollout using Flutter, raising store rating from three stars to 15 across two releases.
Mobile Developer · Oakstone
2018 – 2022
- Owned performance and crash monitoring in production while raising the bar on state management, cutting cold-start time to under 2600 milliseconds.
- Managed the iOS and Android release trains, reducing crash-free session rates from below 98% to 97% — with app store deployment the constraint that mattered most.
- Oversaw offline sync and conflict resolution alongside 1 colleague, shrinking app size by 6%.
Skills
Core skills: iOS Development, Android Development, Mobile UI, REST APIs, State Management, App Store Deployment, Push Notifications, Unit Testing
Tools & technology: Swift, Kotlin, React Native, Flutter, Xcode, Android Studio, Firebase, Git
Strengths: Attention to Detail, Problem Solving, Collaboration, Communication
Education & Certifications
B.S., Computer Science — State University
Google Associate Android Developer