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Senior mobile app developer with 10+ years shipping production apps, fluent across Flutter and React Native/Expo, and experienced delivering native iOS and Android when needed. Deep expertise in Bluetooth Low Energy (BLE) integrations, native background services, and end-to-end lifecycle ownership from architecture through CI/CD and store releases. Known for performance-focused delivery (reduced API latency and infrastructure costs), building reliable cross-platform navigation and native-module bridges, and integrating healthcare-grade device streaming across 20+ medical devices. Experienced with large-scale production systems, API design, and automation using AI-assisted development workflows.…Senior mobile app developer with 10+ years shipping production apps, fluent across Flutter and React Native/Expo, and experienced delivering native iOS and Android when needed. Deep expertise in Bluetooth Low Energy (BLE) integrations, native background services, and end-to-end lifecycle ownership from architecture through CI/CD and store releases. Known for performance-focused delivery (reduced API latency and infrastructure costs), building reliable cross-platform navigation and native-module bridges, and integrating healthcare-grade device streaming across 20+ medical devices. Experienced with large-scale production systems, API design, and automation using AI-assisted development workflows.

Pratik Gautam

App Developer, Back-End Developer, Full Stack Developer, +1

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Senior mobile app developer with 10+ years shipping production apps, fluent across Flutter and React Native/Expo, and experienced delivering native iOS and Android when needed. Deep expertise in Bluetooth Low Energy (BLE) integrations, native background services, and end-to-end lifecycle ownership from architecture through CI/CD and store releases. Known for performance-focused delivery (reduced API latency and infrastructure costs), building reliable cross-platform navigation and native-module bridges, and integrating healthcare-grade device streaming across 20+ medical devices. Experienced with large-scale production systems, API design, and automation using AI-assisted development workflows.…Senior mobile app developer with 10+ years shipping production apps, fluent across Flutter and React Native/Expo, and experienced delivering native iOS and Android when needed. Deep expertise in Bluetooth Low Energy (BLE) integrations, native background services, and end-to-end lifecycle ownership from architecture through CI/CD and store releases. Known for performance-focused delivery (reduced API latency and infrastructure costs), building reliable cross-platform navigation and native-module bridges, and integrating healthcare-grade device streaming across 20+ medical devices. Experienced with large-scale production systems, API design, and automation using AI-assisted development workflows.

Available to hire

Senior mobile app developer with 10+ years shipping production apps, fluent across Flutter and React Native/Expo, and experienced delivering native iOS and Android when needed. Deep expertise in Bluetooth Low Energy (BLE) integrations, native background services, and end-to-end lifecycle ownership from architecture through CI/CD and store releases.

Known for performance-focused delivery (reduced API latency and infrastructure costs), building reliable cross-platform navigation and native-module bridges, and integrating healthcare-grade device streaming across 20+ medical devices. Experienced with large-scale production systems, API design, and automation using AI-assisted development workflows.

Skills

Experience Level

Expert

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Language

English

Advanced

Work Experience

Senior Mobile Software Engineer - Contract at Mayt IInc. / Not clearly specified

March 1, 2025 - May 1, 2026

Shipped cross-platform mobile features in both React Native/Expo and Flutter, including navigation, native module integration, EAS Build/Submit pipelines, OTA updates, and coordinated App Store/Play Store releases. Built a shared design-system UI across React Native and web (React/Next.js), and tuned mobile performance with list virtualization, memoization, and native-driven animations. Led full lifecycle mobile product development from MVP to 10,000+ active users. Designed high-performance REST APIs reducing average response time from 4s to 200ms, and reduced infrastructure costs by ~40% for systems handling millions of requests per day. Used Cloud Code workflows for feature scaffolding, multi-file factors, AI-assisted code review, and test generation; built internal tooling and integrated MCP servers to automate repetitive development tasks, shortening iteration cycles.

Senior Mobile Software Engineer - Contract at YaMai Inc.

March 1, 2024 - August 1, 2024

Built cross-platform Flutter healthcare app streaming real-time biometric data from smart garments and connected medical devices to iOS and Android. Engineered BLE modules and native background services on iOS/Android for continuous 24/7 biometric streaming, and bridged Flutter to native platforms via native modules and platform channels to access device capabilities not exposed by the framework. Delivered data-visualization components surfacing 10+ vital metrics (heart rate, sleep, body temperature, posture) to improve engagement and clinical usability. Migrated a legacy Flutter codebase to the latest version with full null-safety support, collaborating daily with designers, backend engineers, and data scientists in an Agile environment.

Senior Full-Stack Software Engineer - Contract at Not specified

October 1, 2023 - Present

Shipped cross-platform mobile features in React Native/Expo and Flutter, implementing navigation, native module integration, EAS build/submit and OTA update flows, and coordinating App Store/Play Store releases. Built design-system UI spanning React Native and web using React/Next.js. Tuned mobile performance (virtualization, memoization, native-driven animations) and led mobile product development from MVP to 10,000+ active users. Designed REST APIs to reduce average response time from 4s to 200ms and cut infrastructure costs by ~40%. Used AI-assisted workflows (Cloud Code, AI code review, test generation) and built internal tooling (custom sub-agent and MCP integrations).

Senior Mobile Engineer at Finz

June 1, 2022 - January 1, 2024

Led development of a fintech mobile app in Flutter using Riverpod for state management and integrated multiple third-party APIs to expand product functionality. Owned app publishing and CI/CD for both app stores, and built a companion WearOS app extension for wearable devices. Self-managed delivery as a contract engineer.

Senior Software Engineer (Independent Consulting) at Self-Employed (Upwork)

January 1, 2015 - Present

Built cross-platform mobile apps in Flutter and React Native/Expo, including end-to-end navigation, state management, native modules, push notifications, payments, and App Store/Play Store releases for 30+ international clients. Acted as Lead Engineer and Technical Consultant across 50+ engagements, owning architecture with Node.js, Django, React, and AWS, and scaling products from MVP to millions of users. Owned UI/UX for clients without designers via Figma prototyping and design-to-code, and hardened apps with OAuth, HTTPS, JWT, and encryption. Published 20+ production apps on App Store and Google Play, including an app with 1M+ downloads.