iOS Engineer

6 hours, 46 minutes ago
Full-time
Mid Level
Mobile Development
Twosense

Twosense

Twosense provides innovative Behavioral MFA solutions for contact centers, offering software-based biometric authentication without the need for phones or hard tokens. Enhancing identity security through continuous authentication powered by passive bio...

Internet Software & Services
11-50
Founded 2015
$7M raised

Description

  • Lead development of the iOS application that collects and processes behavioral biometric data in the background.
  • Build secure data collection systems for sensors, user interactions, and other behavioral signals with robust background processing.
  • Create APIs and frameworks that allow other iOS applications and cloud systems to integrate with the authentication platform.
  • Optimize app performance to minimize battery impact while maintaining reliable continuous operation.
  • Build credential management features using the iOS Wallet framework and NFC capabilities for tap-based authentication.
  • Navigate iOS ecosystem constraints including permissions, App Store requirements, and enterprise deployment.
  • Collaborate on product direction and directly shape the authentication experience and technical architecture.

Requirements

  • 4+ years of iOS development experience with apps in production.
  • Experience building native iOS apps using Objective-C and Swift.
  • Deep knowledge of iOS architecture, background processing, and push notifications.
  • Strong understanding of iOS security features and limitations.
  • Excellent problem-solving skills and attention to performance details.
  • Experience with security products or authentication systems such as OAuth/OIDC (preferred).
  • Experience with Core Motion, Core Location, Core Bluetooth, or HealthKit (preferred).
  • Background in behavioral biometrics or continuous data collection (preferred).

Benefits

  • Fully remote work from anywhere.
  • Meaningful equity so you own a piece of what you build.
  • Flexible PTO.
  • Monthly project days to work on something you’re passionate about.
  • Online learning resources including O'Reilly, Pluralsight, and technical books.
  • Company-covered travel for team gatherings and meet-ups.
  • Full tech setup including high-end equipment, VPN, and other resources provided.

Interested in this position?

Apply directly on the company website

Apply Now

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