Personal details

Jose C. - Remote mobile app developer

Jose C.

Based in: 🇺🇸 United States
Timezone: Eastern Time (US & Canada) (UTC-5)

About

Senior Full-Stack & Mobile Engineer | React Native, TypeScript, Node.js & AI Integration

Senior Full-Stack and Mobile Software Engineer with 8+ years of experience building and scaling applications across staffing, logistics, travel, healthcare, and EdTech. I specialize in React Native, TypeScript, React, Node.js, and AI-powered application development.

I've built products from the ground up, modernized existing architectures, and delivered applications serving thousands to millions of users. My experience spans mobile development, backend APIs, multi-tenant platforms, third-party integrations, and technical leadership.

Most recently, I developed AI-powered recruiting workflows for a staffing platform, including an AI recruiter processing approximately 3,000 candidates monthly and an AI supervisor monitoring more than 1,000 active jobs daily. I also launched a workforce-management mobile application used by thousands of people to track approximately 32,000 working hours each week.

My AI experience includes OpenAI integrations, prompt engineering, RAG, embeddings, and LLM-powered workflows. Beyond AI, I've helped improve mobile revenue contribution, developed white-label applications, and established frontend architectures adopted across multiple products.

I enjoy working closely with product and engineering teams to turn complex requirements into reliable, intuitive applications, balancing user experience, maintainability, and business impact.

Work Experience

Founding Senior Software Engineer
Pikl.ai | Jan 2025 - Jul 2026
Ruby on Rails
PostgreSQL
Heroku
Sidekiq
React Native
Sentry
GraphQL
Next.js
Expo
New Relic
OpenAI
RAG
Pgvector

Led full-stack and mobile development for a staffing platform, building workforce-management products and AI-powered workflows supporting recruiting and operational processes.

  • Built an AI recruiter workflow that interviews and processes approximately 3,000 candidates monthly.
  • Developed an AI supervisor monitoring 1,000+ active jobs daily, identifying issues related to candidate progression, requirements, and workforce availability.
  • Launched a React Native workforce-management application from scratch, including time tracking, timesheets, geofencing, and clock-in/out functionality.
  • Scaled the mobile application to thousands of daily users tracking approximately 32,000 working hours weekly.
  • Developed backend services and AI integrations using Ruby on Rails, PostgreSQL, OpenAI, RAG, and pgvector.

Technologies: React Native, Expo, Ruby on Rails, PostgreSQL, Sidekiq, GraphQL, Next.js, OpenAI, RAG, pgvector

Senior Software Engineer
Proxify | Apr 2024 - Dec 2024
Node.js
Firebase
React Native
Next.js
Contentful CMS
Express.js

Delivered full-stack and mobile applications across healthcare, education, and location-based products through multiple client engagements.

  • Built a healthcare patient portal supporting more than 3,000 users across web and mobile.
  • Developed DecipherInk, an educational platform teaching genealogical document literacy through interactive exercises and CMS-driven content.
  • Built Pin Drop, a mobile pipeline feature allowing premium users to organize projects across multiple locations.
  • Developed frontend and backend functionality using React Native, Next.js, Node.js, Express, and Firebase.
  • Integrated Contentful CMS to support dynamic content management and application workflows.

Technologies: React Native, React, Next.js, Node.js, Express, Firebase, Contentful CMS

Projects

Petdoor
2023
Node.js
Firebase
React
Next.js
Contentful CMS
Petdoor was a pet-tech project, that wanted to help the pet community uploading post and recommendations, most of this post were from professionals or pet owners experiences. Also Petdoor connect with some pet-shops to give them visibility through its platform

Education

Coder House
Degree in Cloud Computing (AWS)・Engineering
Mar 2023 - May 2023
Universidad Autonoma de Occidente
Bachelor's degree・Engineering
Jul 2011 - Nov 2017