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I'm Kalem Zane, a Senior Mobile Application Engineer who thrives on turning ideas into scalable mobile experiences. I specialize in cross-platform development with React Native, Flutter, and native Android, delivering robust apps that combine performance with polished UX. I excel at architecting modular, maintainable code, building automated pipelines, and collaborating with designers and product teams to ship features that users love across devices and platforms.…I'm Kalem Zane, a Senior Mobile Application Engineer who thrives on turning ideas into scalable mobile experiences. I specialize in cross-platform development with React Native, Flutter, and native Android, delivering robust apps that combine performance with polished UX. I excel at architecting modular, maintainable code, building automated pipelines, and collaborating with designers and product teams to ship features that users love across devices and platforms.

Kalem Zane

Developer, App Developer, Web Developer, +4

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I'm Kalem Zane, a Senior Mobile Application Engineer who thrives on turning ideas into scalable mobile experiences. I specialize in cross-platform development with React Native, Flutter, and native Android, delivering robust apps that combine performance with polished UX. I excel at architecting modular, maintainable code, building automated pipelines, and collaborating with designers and product teams to ship features that users love across devices and platforms.…I'm Kalem Zane, a Senior Mobile Application Engineer who thrives on turning ideas into scalable mobile experiences. I specialize in cross-platform development with React Native, Flutter, and native Android, delivering robust apps that combine performance with polished UX. I excel at architecting modular, maintainable code, building automated pipelines, and collaborating with designers and product teams to ship features that users love across devices and platforms.

Available to hire

I’m Kalem Zane, a Senior Mobile Application Engineer who thrives on turning ideas into scalable mobile experiences. I specialize in cross-platform development with React Native, Flutter, and native Android, delivering robust apps that combine performance with polished UX.

I excel at architecting modular, maintainable code, building automated pipelines, and collaborating with designers and product teams to ship features that users love across devices and platforms.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Intermediate

Language

English

Fluent

Work Experience

Mobile Solutions Developer at Motus

March 19, 2020 - September 24, 2025

Delivered and supported end-to-end mobile applications from concept to release across iOS and Android. Implemented modular architectures and reusable components, improving coder efficiency and velocity. Integrated secure payments, offline storage, and data synchronization with backend services. Refactored legacy code for maintainability and performance. Participated in code reviews, sprint planning, and stakeholder demos to align engineering with product goals. Helped establish CI/CD processes and automated testing to ensure quality.

Senior iOS Developer at Sparkle Technologies

November 1, 2022 - Present

Architected complex UIKIt and SwiftUI interfaces supporting dynamic layouts and adaptive design across all device classes. Optimized combined pipeline and asynchronous flows to reduce UI latency and improve real-time responsiveness. Implemented StoreKit 2-based purchase flows with sandbox testing and receipt validation, increasing subscription conversion by 22%. Refactored navigation using Coordinators and deep-linking with custom URL schemes and Universal Links, streamlining UX. Leveraged Firebase Analytics and Remote Config for A/B testing and event tracking, improving feature validation accuracy by 60%. Created custom Swift Package Manager modules to encapsulate shared logic and reduce code duplication across targets.

iOS Developer at Motus

October 31, 2022 - October 9, 2025

Delivered native iOS apps leveraging Core Data, URLSession, and SceneKit; achieved 1M accelerated initial rendering performance by 48% through lazy loading strategies and Core Animation optimizations. Implemented StoreKit usage; wrote unit tests with XCTest; built in-app purchase flows with sandbox testing and receipt validation; created navigation with Coordinators and deep-linking. Audited legacy components and migrated to Swift modules, cutting build times by 28% and modernizing core infrastructure.

Senior Mobile Application Engineer at Motus

March 20, 2020 - November 14, 2025

Delivered and maintained multi cross-platform mobile solutions across platforms; implemented modular architectures and reusable components, improving code reuse and velocity. Integrated secure payment flows, push notifications, and real-time data synchronization via backend APIs and third-party SDKs. Refactored legacy codebases for maintainability, performance, and compliance with modern development practices. Contributed to CI/CD workflows, version control processes, and release management across multi-environment apps. Coordinated with cross-functional teams in Agile environments to ensure timely feature delivery. Maintained robust test coverage and crash-free metrics through continuous monitoring and QA alignment.

Mobile Software Engineer at Credo

June 1, 2018 - November 14, 2025

Developed and supported end-to-end mobile applications from concept to release across multiple operating systems. Optimized app performance and responsiveness by profiling and tuning UI rendering and asynchronous tasks. Delivered smooth animations, dynamic theming, and accessibility support to enhance UX and meet design standards. Integrated local storage, offline access, and background sync for enhanced reliability in low-connectivity environments. Participated in code reviews, sprint planning, and stakeholder demos to align engineering efforts with product goals. Ensured best practices through testing automation and monitoring tools for error tracking and analytics.

Senior Mobile Application Engineer at Sparkle Technologies

November 2, 2022 - Present

Led development of scalable, high-performing mobile applications across platforms with consistent 4.7 user ratings. Enhanced runtime efficiency by optimizing bottlenecks, reducing cold start time and memory usage. Integrated cloud services for real-time communication, analytics, and secure transactions, improving feature richness and stability. Built automated pipelines for testing, deployment, and over-the-air updates, reducing release cycles by 60%. Collaborated with designers and product teams to ensure pixel-perfect, responsive UI across diverse device sizes. Maintained robust test coverage and crash-free metrics through continuous monitoring and QA alignment.

Mobile Applications Developer at Credo

June 20, 2018 - Present

Developed end-to-end mobile apps from concept to release across multiple operating systems. Optimized app performance and responsiveness by profiling and tuning UI rendering and asynchronous tasks. Delivered smooth animations, dynamic theming, and accessibility support to enhance UX and meet design standards. Integrated local storage, offline access, and background sync for enhanced reliability in low-connectivity environments.