Protofire logo

Mobile Developer (iOS + Android)

Protofire
Department:iOS Developer
Type:REMOTE
Region:EU
Location:Portugal
Experience:Mid-Senior level
Estimated Salary:€45,000 - €80,000
Skills:
IOSANDROIDSWIFTKOTLINREACT NATIVEFLUTTERMOBILE DEVELOPMENTBLOCKCHAINDEFIEVMWEB3APISSTATE MANAGEMENTPERFORMANCE OPTIMIZATIONSECURITY
Share this job:

Job Description

Posted on: January 20, 2026

Protofire is looking for a Mobile Developer to build a consumer mobile app (iOS + Android) focused on seamless onboarding and DeFi credit flows. You'll work closely with product and backend teams to deliver an MVP with a strong UX and production-grade security. Requirements

  • 5+ years of professional mobile development experience
  • Strong experience with iOS and/or Android (native Swift/Kotlin) or cross-platform (React Native / Flutter)
  • Proven experience shipping production mobile apps
  • Solid understanding of wallets, key management, self-custody, and blockchain transaction flows
  • Hands-on experience with EVM / Web3 SDKs, DeFi interactions, signing, and security best practices
  • Comfortable working with APIs, state management, and mobile performance optimization
  • English B2+ (spoken and written)

Nice to have

  • Experience integrating embedded wallet providers (e.g., Privy, Dynamic, Web3Auth, Turnkey)
  • Experience with KYC/card providers and card lifecycle flows
  • Experience building fintech apps (payments, credit, lending)
Originally posted on LinkedIn

Apply now

Please let the company know that you found this position on our job board. This is a great way to support us, so we can keep posting cool jobs every day!

RemoteITJobs.app logo

RemoteITJobs.app

Get RemoteITJobs.app on your phone!