Tim Simon

Mobile Developer & Co-Founder

Building your next project at Rush

About Me

I'm a freelance mobile developer with 8+ years of experience specializing in React Native, TypeScript, and cross-platform mobile applications. Currently working at Rush to build your next project.

Expertise

Mobile Development

React Native, Expo, iOS & Android native integration, EAS CI/CD

Frontend & Backend

React, TypeScript, Next.js, Django, REST APIs, PostgreSQL

Architecture

Monorepo (Turbo, Nx), CI/CD (GitLab, CircleCI), OpenAPI, OIDC

Specialized

Healthcare apps (ISO 13485), IoT integration, NFC, Barcode scanning

Current Roles

Co-Founder

Rush

Oct 2023 - Present

Nivelles, Belgium

Lead React Native Developer

ZORGI

Jun 2022 - Present · Freelance

Leading development of Nurseflow and healthcare mobile apps. Specializing in brown-field projects, native Android library integration, and monorepo architecture with TurboRepo.

Full Stack Engineer

O25 Drink Clean

Jun 2022 - Present · Freelance

Built user-facing app for smart water fountains with Expo, TypeScript, and Django REST API. Implemented automated deployment to App Store and Play Store via EAS CI/CD.

Key Achievements

8+

Years of Experience

10+

Apps Shipped

3

Active Clients

Services

  • Mobile Application Development (iOS & Android)
  • React Native & Expo Development
  • Full Stack Development (Frontend + Backend)
  • App Architecture & Code Modernization
  • CI/CD Pipeline Setup & DevOps
  • Technical Consulting & Code Reviews

Let's Build Something Great

Available for freelance projects and consulting