React Native Developer — Security & UX Hardening Job in Remote | Yulys
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Job Title: React Native Developer — Security & UX Hardening

Company Name: Iris Light Within App
Salary: USD 40.00
-
USD 50.00 Hourly
Job Industry: Program Development
Job Type: Full time
WorkPlace Type: remote
Location: Remote, United States
Required Candidates: 1 Candidates
Skills:
AJAX
Debugging
Performance Optimization
Job Description:

Title: React Native Developer — Security & UX Hardening

Type: Contract · Part-time

Location: Remote

Hours: 10–15 hrs/week

Pay: $40–$50/hr

About the Role

We’re looking for an independent React Native developer to harden and polish a live, deployed lifestyle companion app.

This is not a greenfield build — the app is already functional. Your role is to strengthen what’s already there, improve reliability, and elevate the user experience.

What You’ll Do

  1. Harden authentication and user-facing security flows
  2. Identify and resolve gaps in auth systems and RBAC implementation
  3. Improve UX across critical screens without redesigning the system
  4. Ensure clean, production-ready execution — no partial fixes

Tech Stack

  1. React Native (Expo)
  2. FastAPI (7 microservices)
  3. Railway
  4. JWT
  5. WebAuthn / Passkeys
  6. SAML 2.0
  7. RBAC

What We’re NOT Looking For

  1. No building from scratch
  2. No full redesigns or product ownership
  3. No candidates looking for a blank canvas

This is a refinement and hardening role, not a creation role.

Ideal Candidate

  1. Strong experience with authentication systems and security best practices
  2. Comfortable working within an existing codebase
  3. Detail-oriented with a focus on stability and edge cases
  4. Able to work independently and ship clean solutions

Growth Potential

High performers may transition into a long-term part-time role supporting ongoing maintenance, improvements, and future feature enhancements.

Pay: $40.00 - $50.00 per hour

Work Location: Remote

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