Haim Gabay

Tech Lead – React Native (Matrix | Tech Lead) at Matrix

Led development of a new enterprise React Native mobile application for one of Israel's largest banks. Provided technical leadership for a core team of four developers while coordinating additional engineers from other teams. Drove architecture and mobile engineering standards, performed code reviews, and mentored developers. Designed application infrastructure and integrated internal libraries and enterprise services. Built secure enterprise financial solutions integrated with internal banking systems. Implemented server-state management using TanStack Query alongside Redux Toolkit. Integrated native Android/iOS components including deep links and push notifications via Firebase Cloud Messaging (FCM). Worked closely with Product, UX/UI, QA, DevOps, Infrastructure, and Information Security teams. Used AI tools (Claude, Gemini, Codex) to accelerate development while maintaining full engineering ownership over code quality, maintainability, performance, and scalability.

React Native Mobile Developer at Migdal Insurance

Developed and maintained the company’s customer-facing mobile application. Played a significant role in building a new React Native application, delivering complex features while supporting and maintaining existing production systems. Collaborated with Product, UX/UI, QA, and DevOps teams across the full software development lifecycle. Integrated backend services, Firebase capabilities, and native Android/iOS components. Worked in Agile environments using Git, Azure DevOps, and Figma.

React Native Developer at Devalore

Developed enterprise financial mobile applications. Built new features and solved production issues. Integrated backend services and collaborated with QA and design teams.

React Native Developer at Aman

Developed the official public transportation mobile application for the Israel Defense Forces. Built and shipped new application features. Collaborated with Product Managers, UX/UI designers, and QA teams. Worked with TypeScript, Redux Toolkit, Azure DevOps, and Agile methodologies.

Full Stack Developer at Yuvital Health

Developed full-stack applications using React Native and Node.js, including frontend and backend development. Built and integrated data stores using MongoDB and PostgreSQL. Implemented Firebase features and REST APIs.