Personal details

Kristal P. - Remote full-stack developer

Kristal P.

Sr React Native / Full-stack Developer
Based in: 🇺🇸 United States
Timezone: Central Time (US & Canada) (UTC-5)

About

Senior React-native/ Full Stack Developer with 5+ years of experience architecting and delivering scalable web and mobile applications. Skilled in building end-to-end solutions across frontend, backend, APIs, databases, and cloud services using modern JavaScript/TypeScript technologies. Proven ability to lead the entire product lifecycle from Figma mockups and backend architecture to deployment on the App Store, Play Store, and cloud platforms. Published open-source npm packages with active community adoption and a strong focus on performance, scalability, and developer experience.

Work Experience

Senior React-Native / Full-stack Developer
Heliconia Solutions | Aug 2025 - Present
Android
Node.js
TypeScript
Stripe
React
JavaScript
React Native
iOS
Next.js
Expo
RESTful API
Tailwind css
Zustand
Supabase
Express.js
AI
Ai agent
  • Led end-to-end development of full-stack web and cross-platform mobile applications, designing scalable frontend, backend APIs, and databases while deploying production releases to the App Store, Play Store, and cloud environments using CI/CD automation with GitHub Actions.
  • Built and maintained RESTful APIs, authentication systems, and backend services while collaborating closely with engineering, design, and product teams to deliver features on schedule, reducing average feature turnaround time by approximately 20% through improved sprint workflows.
  • Improved application performance across frontend and backend by optimizing rendering, API response times, database queries, caching strategies, and overall system architecture, resulting in faster load times and a better user experience.
  • Developed and maintained type-safe, scalable applications using TypeScript across the full stack, implementing automated testing with Jest, code reviews, and best engineering practices to ensure high code quality, maintainability, and rapid iteration.
React-native/ Full-stack Developer
Qtonz Infosoft Pvt.Ltd | Apr 2023 - Jul 2025
Android
Node.js
TypeScript
Stripe
React
JavaScript
React Native
iOS
Next.js
Expo
RESTful API
Supabase
Express.js
AI
Ai agent
  • Spearheaded end-to-end development of full-stack web and mobile applications, from system architecture and database design to frontend implementation, backend APIs, and production deployment, improving CI/CD pipeline efficiency and reducing release cycle time by approximately 30%.
  • Delivered scalable features across frontend and backend systems that increased user engagement and retention while consistently meeting sprint goals and project deadlines.
  • Translated Figma mockups and product requirements into responsive, reusable React/React Native components and integrated them with secure, high-performance REST and GraphQL APIs.
  • Established engineering standards through code reviews, testing strategies, and technical documentation, reducing production bugs by approximately 40% while improving maintainability and developer productivity.
  • Designed, developed, and maintained scalable backend services, authentication flows, and API integrations, collaborating on API architecture to ensure reliable data flow, comprehensive error handling, and high system availability.

Projects

React Native LinkedIn Login
React
React Native
A React Native library that simplifies LinkedIn login integration using a WebView modal. It provides a ready-to-use component for handling TypeScript-based authentication flows with ease.
Record Social
Node.js
TypeScript
JavaScript
React Native
RESTful API
The Social Music App is the ultimate social platform for music enthusiasts worldwide, The Social Music App has a Home, Profile, Library, Community, and Discovery Tabs, TheSocial Music App tracks user's most-listened-to songs, weekly, monthly, and all-time, Users playlists will sync from Spotify premium account and will be visible on user'sprofile, The Social Music App have stunning user interface and designed to connectwith friends based on the music, and GPS feature allows users to stay on top of musictrends wherever user from school to workplace and beyond. Responsibilities: - Participated in daily meetings with the client to discuss progress, clarify requirements, and align development goals with project milestones. These regular syncs helped maintain clear communication and rapid feedback loops throughout the project. - Designed and developed the user interface from scratch, ensuring that every screen met UI/UX design principles and delivered a clean, intuitive, and modern experience. Focus was placed on seamless navigation, responsive layouts, and maintaining visual consistency across both iOS and Android devices. - Utilized React Native and Context API to efficiently manage global application state, improving performance and enabling personalized user experiences based on dynamic user data. - Integrated custom backend APIs to fetch user-specific data, including profile information, streaming history, and location-based music trends. Handled edge cases and implemented graceful error handling for smooth UX. - Led the Spotify API integration, enabling users to log in with their Spotify Premium account and access their personal music library (songs, playlists, albums) within the app. This feature provided a seamless music streaming experience without needing to switch between apps.

Education

Gujarat Technical University (GTU)
Bachelor's degree・EC
Jun 2018 - Jun 2021
Gujarat Technical University (GTU)
Diploma・EC
Jul 2016 - Jul 2018