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Founding Senior Mobile Engineer - React Native​/Swift On Site - Start Up

Remote / Online - Candidates ideally in
San Francisco, San Francisco County, California, 94199, USA
Listing for: James Chase
Remote/Work from Home position
Listed on 2026-01-10
Job specializations:
  • Software Development
    App Developer - Mobile/Web, Full Stack Developer, iOS Developer, React.js
Salary/Wage Range or Industry Benchmark: 300000 - 400000 USD Yearly USD 300000.00 400000.00 YEAR
Job Description & How to Apply Below
Position: Founding Senior Mobile Engineer - React Native/Swift - $300k- $400k - On Site - Start Up

Founding Senior Mobile Engineer - React Native/Swift - $300k- $400k - On Site - Start Up

James Chase Solutions is currently looking for an experienced Founding Senior Mobile Engineer
- React Native for my fantastic Start Up client based in San Francisco. You’ll work in small, elite teams alongside colleagues from Product, Design, and Data to achieve the best possible outcomes for the learners and the business.

  • Architect & Build: Design, build, and own the mobile app experience from the ground up, creating the interface that will connect millions of users with our AI engine.
  • Lead Mobile Development: Drive feature development end-to-end, from technical scoping and architecture through implementation and release.
  • Build with React Native & Native Modules: Develop in React Native while integrating with native modules (
    Swift, Kotlin/Java
    ) for advanced functionality and high performance.
  • Engineer for AI & Video: Seamlessly integrate sophisticated AI-powered features and deliver a world‑class video‑first mobile experience
    .
  • Design for Scale: Architect a robust, resilient, and highly available mobile stack capable of reliably scaling to the #1 App Store spot
    .
  • Set the Standard: Mentor other engineers, influence architectural decisions, and set the bar for technical excellence.

You will be a highly experienced Android Engineer with strong experience of:

  • Experience in an early stage start‑up (doesn’t have to be a successful company).
  • Background in consumer social, gaming or other consumer apps
    .
  • Deep expertise in React Native or Swift
    .
  • Must be in‑office 5 days/week
    .

Note – I am not in the office and working from home on my mobile, so will get in touch ASAP if your application is successful.

Should you possess the correct skills and experience for this position, we will be in touch with you within 7 days of the receipt of your CV. Should you not hear from us within this time frame, you have not been successful on this occasion. We wish you every success in your search for suitable employment.

Seniority level

Mid‑Senior level

Employment type

Full‑time

Job function

Information Technology

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Position Requirements
10+ Years work experience
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