Jayden Maddison

Lead Mobile Engineer - Contract at Kato

Led the redevelopment of existing native iOS and Android applications into a unified cross-platform architecture using React Native, Nx, and Expo. Designed and implemented a monorepo structure to enable code sharing of UI components and themes across multiple apps. Streamlined app scaffolding to accelerate feature delivery and onboarded React developers to the new stack through a comprehensive course.

Mobile Team Lead - Contract at Pynea

As Mobile Team Lead and first engineer hired, built a cross-functional team of five, established agile processes, and led the technical direction for mobile and backend systems. Architected the mobile apps (iOS/Android) in native Swift/Obj-C and Kotlin/Java, while maintaining and improving the React Native app. Designed a scalable Node.js backend to support real-time communication and data synchronization, including live events and video calls.

Lead React Native Developer - Contract at Net-A-Porter

Led the redevelopment of native iOS and Android apps into a single React Native app. Resolved disparities in look and feel through theming and feature toggling, enabling one codebase to support two distinct experiences. The globally released app contributed to substantial revenue generation, with the platform reporting high daily revenue.

Senior React Native Developer - Contract at Zopa Bank

Developed new features on top of the existing app and upskilled React developers into React Native. Implemented secure development practices with limited external npm modules, building features from scratch and guiding the team through build processes and native integration via pair programming.

Lead Android Developer - Contract at Telia Sverige

Led the redevelopment of Telia Play streaming app's native architecture. Enabled dynamic rendering of components via GraphQL and refactored the native player code for improved performance and maintainability across the mobile app.

Lead Android / React Native Developer - Contract at GenFlow

Created a boilerplate fitness/e-commerce app to be white-labeled. Built three core sections (fitness/activity tracker, community/chat, and e-commerce) with TypeScript, React Native, Pusher ChatKit, Stripe for payments, and Apollo GraphQL for APIs.

Senior Full-Stack Developer - Contract at BlockEx (Crypto Fintech)

Led front-end development of a greenfield cryptocurrency trading platform mobile app using TypeScript, React Native, Redux, and SockJS for real-time data.

Lead UI / Front-end Developer - Contract at Flipper Ltd

Directed UI/front-end development, delivering polished front-end features and interfaces to meet product goals.

Senior UI / Front-end Developer - Contract at GiveSmart

Developed UI/front-end components and features, aligning with user experience and performance goals for the product.

Front-end Consultant at Wex Europe

Provided front-end consulting to accelerate project delivery and improve UI/UX quality.

Lead UI / Front-end Developer – Contract at Maersk Line

Led UI/front-end development for Maersk Line, delivering scalable front-end solutions within a contract arrangement.

Lead UI / Front-end Developer - Contract at Intermedia PLC

Led front-end development efforts, delivering user-centric UI components and interfaces under contract.

Front-end Developer - Permanent at Multicom Products Ltd

Developed front-end interfaces and web applications, contributing to product delivery and maintenance.

Junior Web Designer and Front-end Developer at Lime Media Limited

Expanded front-end skills, designing web interfaces and contributing to early-stage product development.