> Markdown version of [/jobs/ext/4703789-mobile-app-developer](https://www.wearedevelopers.com/jobs/ext/4703789-mobile-app-developer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md).

---

# Mobile App Developer

- **Company:** THE FIND LLC
- **Location:** Los Angeles, CA, United States
- **Contract:** Permanent contract
- **Skills:** Amazon Web Services, Design of User Interfaces, Mobile Application Software, Node.Js, Systems Integration, TypeScript, Data Processing, Cloud Platform System, Large Language Models, Prompt Engineering, React Native, Restful APIs
- **Published:** November 13, 2026
- **Apply:** https://www.nettemps.com/us/en/W208FB168836CC2A192.ntap

## About the Role

* Strong proficiency in React Native, TypeScript, Node.js, and RESTful APIs.
 * Experience integrating LLM APIs or on-device/cloud voice models.
 * Familiarity with AWS or cloud environments for cost-efficient scaling.
 * Startup mindset-passionate about early-stage building, speed, and rapid iteration.
 * High empathy for health-tech and improving quality of life for seniors.

## Description

* Build, optimize, and scale our cross-platform mobile application using React Native/Expo (iOS & Android).
 * Integrate and fine-tune voice processing and LLM pipelines (TTS/STT, prompt engineering, session adaptation).
 * Manage scalable Back End infrastructure (Node.js/Express, AWS) and ensure secure user data handling.
 * Implement dynamic session algorithms combining balance moves with cognitive prompts.
 * Champion accessible, senior-friendly voice-first UI/UX standards.