I'm a developer who specializes in React and React Native from Fresno, CA. Full Stack Engineer with 8+ years of experience building scalable web and mobile applications in fast-paced startup environments. Specialized in React, React Native, and cloud deployment, with strong expertise in API integrations. Skilled at independently architecting and delivering features from design to release, while collaborating closely with QA and product teams in Agile settings to ship reliable, user-centered software. --- **Employment and project experience** **Full Stack Engineer** Freelance _Nov 2025 – Current_ **Full Stack Engineer** EBPI dba Jaspr Health _Dec 2023 – Aug 2025_…

Maria G. Espinoza

I'm a developer who specializes in React and React Native from Fresno, CA. Full Stack Engineer with 8+ years of experience building scalable web and mobile applications in fast-paced startup environments. Specialized in React, React Native, and cloud deployment, with strong expertise in API integrations. Skilled at independently architecting and delivering features from design to release, while collaborating closely with QA and product teams in Agile settings to ship reliable, user-centered software. --- **Employment and project experience** **Full Stack Engineer** Freelance _Nov 2025 – Current_ **Full Stack Engineer** EBPI dba Jaspr Health _Dec 2023 – Aug 2025_…

Available to hire

I’m a developer who specializes in React and React Native from Fresno, CA.

Full Stack Engineer with 8+ years of experience building scalable web and mobile applications in fast-paced startup environments. Specialized in React, React Native, and cloud deployment, with strong expertise in API integrations. Skilled at independently architecting and delivering features from design to release, while collaborating closely with QA and product teams in Agile settings to ship reliable, user-centered software.

Employment and project experience

Full Stack Engineer Freelance
Nov 2025 – Current

Full Stack Engineer EBPI dba Jaspr Health
Dec 2023 – Aug 2025

See more

Skills

Experience Level

React Native
Expert
Django
Expert
Python
Expert
Shopify
Expert
Typescript
Expert
CSS
Expert
Figma
Expert

Language

English
Fluent
Spanish; Castilian
Fluent
Chinese
Intermediate

Work Experience

Full Stack Engineer at Freelance (Remote)
November 1, 2025 - Present
Developed a Shopify website for a local printing shop by leveraging Shopify themes and creating a custom design. Used Figma to design UI/UX ensuring responsive, user-friendly experiences. Architected a virtual business card software using React, Next.js, and Supabase to spin up a user management system and QR code generation, enabling easy sharing of contact information.
Full Stack Engineer at EBPI dba Jaspr Health
December 1, 2023 - August 1, 2025
Maintained a React.js web application with regular security updates and feature improvements. Optimized an Expo React Native app, integrating expo-router, react-native-video, and gluestack. Implemented features from Figma specs using Expo, collaborating with a suicidologist and clinical team to refine UX. Integrated video playback from Contentful CMS using react-native-video and mux for vertical video support. Designed MobX State Tree models with typed interfaces mirroring Django REST serializers. Added QR code scanning and improved camera interactions. Enabled real-time collaborative state management for synchronized progress tracking. Built a dynamic component rendering system driven by Contentful metadata to support therapeutic workflows.
Senior Software Developer at Bitwise Industries – Ordrslip
October 1, 2017 - May 1, 2023
Maintained and improved React/React Native apps for iOS and Android with MobX for state management. Integrated with Square and Clover POS APIs and deployed apps via AWS, App Store Connect, and Google Play Console. Expanded delivery options with Postmates, Doordash, and Google Maps APIs, connected to a Django REST API. Mentored junior developers in an Agile Scrum environment. Partnered with QA and support to debug issues using Sentry and PaperTrail. Improved design consistency across apps with NativeBase and Material UI for cohesive UI.

Education

Bachelor of Science in Computer Engineering at California State University, Fresno
January 11, 2030 - May 1, 2017

Qualifications

Add your qualifications or awards here.

Industry Experience

Software & Internet, Healthcare, Retail, Professional Services