Tim Emma

Mobile App Developer

Remotasks • ZZP

Apr 2022 - Present • 4 yrs 6 mos

Designed and developed modern mobile applications for small businesses, startups, and personal brands. Worked on app UI, user authentication, dashboards, API integration, payment features, and responsive mobile layouts. Focused on building clean, fast, and user-friendly apps for Android and iOS users.

Full stack ai software developer

Upwork

Sep 2019 - Present • 7 yrs 1 mo

Developed AI-integrated flight and travel SaaS platforms, combining full stack engineering, AI services, third-party travel APIs, and data-driven product features. Key Achievements: • Built AI-powered flight search, travel recommendations, and itinerary features • Integrated flight, hotel, booking, and travel data APIs • Developed scalable frontend and backend architecture for travel SaaS products • Built secure REST APIs, authentication, databases, and payment integrations • Connected AI models to real-time travel data and application workflows • Developed responsive dashboards and customer-facing travel interfaces • Managed development from architecture through deployment and production support

Backend developer

Shopify

Aug 2014 - Dec 2024 • 10 yrs 4 mos

Led the backend development of custom eCommerce platforms, Shopify website, and high-performance storefronts, taking ownership of architecture, integrations, business logic, and production deployment. Key Achievements: • Architected and developed custom Shopify themes and advanced storefront functionality • Built Shopify apps that extended platform capabilities and automated business workflows • Designed backend services, REST APIs, database systems, and third-party integrations • Implemented payment gateways, authentication, webhooks, and external service integrations • Developed custom eCommerce functionality beyond standard Shopify capabilities • Optimized application performance, reliability, security, and maintainability • Managed development through testing, deployment, and production support