Software Engineer, Mobile App

Posted Yesterday
Hiring Remotely in United States
Remote
Mid level
Information Technology • Software
The Role
As a Software Engineer for Mobile App, you will develop, test, and optimize the first version of a mobile app using React Native, ensuring quality standards and collaboration with design and backend teams.
Summary Generated by Built In
Position Responsibilities
  • Build, test, and ship the first version of the App in React Native (Expo).
  • Write clean, maintainable TypeScript code that’s optimized for performance and reliability.
  • Collaborate closely with product and design to develop features end-to-end—from API design to UI polish.
  • Integrate third-party and internal APIs, health data systems (e.g., HealthKit), and AI-driven experiences using LLMs and on-device intelligence.
  • Establish engineering standards for code quality, testing, and CI/CD in a new mobile stack.
  • Continuously improve app performance, security, and scalability.
Basic Qualifications
  • 3+ years of experience building and shipping React Native apps (Expo or bare workflow).
  • Fluent in TypeScript, React, and modern React Native tooling (Redux Toolkit, Reanimated, etc.).
  • Strong understanding of API integration, concurrency, and async data flows in mobile environments.
  • Experience collaborating with design and backend teams on complex product surfaces.
  • Demonstrated passion for creating exceptional user experiences — fast, elegant, and data-driven.
Preferred Skills
  • Experience with HealthKit, CoreBluetooth, or wearable integrations.
  • Background in health tech, data visualization, or biometric systems.
  • Exposure to AI/LLM integration (OpenAI, LangChain, on-device inference).
  • Contributions to open-source or notable personal projects.
  • Experience with secure data handling and HIPAA-compliant architectures.

Top Skills

Ai/Llm Integration
Corebluetooth
Expo
Healthkit
Langchain
Openai
React Native
Reanimated
Redux Toolkit
Typescript
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The Company
HQ: Portland, OR
20 Employees
Year Founded: 2016

What We Do

CrackaJack Digital Solutions is an IT company in business since 2016 with offices in Portland, Oregon and Pune, India.

We primarily serve small to mid-sized businesses across the United States to unleash the power of digital transformation. We specialize in several areas of technology with a particular focus on managed IT services, remote infrastructure, recruiting & staffing technical talent, and website development & maintenance.

We pride ourselves on providing practical and effective technology solutions ranging in scope and size.

Our MISSION
Inspire and transform businesses through digital innovations to accelerate long-term sustainable revenue growth.

Our VISION
The Pacific Northwest’s most successful and impactful digital IT transformation service provider.

Our PURPOSE
Listen & seek to understand
Lead with data & insights
Leverage expertise

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