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TextNow

SIM-based unlimited calling and texting

iOS Software Developer

Mobile EngineeringConfirmed live in the last 24 hours
Full-timeSan Francisco, CA, USAHybrid

About the Job

Requirements

  • Deep experience building production iOS applications with Swift and SwiftUI.
  • Personally owned and operated a consumer iOS app at significant scale, such as 1 million or more monthly active users or comparable, across many release cycles.
  • Daily, fluent use of AI coding tools in real production work, with the ability to allow AI to generate most code while owning correctness, architecture, and quality.
  • Deep command of modern Swift concurrency, including async/await and actors, and Objective-C interoperability within a large, long-lived codebase.
  • Technical leadership across multiple teams, including ownership of major system or module architecture, setting technical direction, and mentoring senior engineers.
  • Hands-on ownership of production reliability for mobile clients, including SLOs/SLIs, instrumentation and telemetry pipelines, on-call rotation, and incident triage.
  • A track record of measurable performance, reliability, or user-impact improvements personally driven.

Responsibilities

  • Design, develop, and sustain high-performance iOS applications in Swift, SwiftUI, and Objective-C, using AI tooling throughout the workflow.
  • Own the full lifecycle of systems, including feature ideation, API design, instrumentation, CI/CD deployment, live-traffic monitoring, unit/UI/e2e testing, telemetry and data analysis, A/B experiment design, and continuous iteration.
  • Lead architectural modernization by decomposing monoliths, building shared libraries and frameworks, improving modularization, and enabling reuse across iOS, Android, and Web.
  • Evaluate new Apple platform capabilities, including operating-system releases, device types, form factors, and architectures, and lead their rollout.
  • Build and extend the internal AI harness, including agents, automation frameworks, evaluation pipelines, and guardrails; continuously improve AI usage and engineering standards.
  • Define observability standards, telemetry pipelines, and fault-tolerance strategies for production-grade mobile systems.
  • Partner with product, design, backend, and data teams; drive technical discussions, mentor developers, and influence strategic direction across mobile.

About the Company

TextNow

SIM-based unlimited calling and texting

TextNow provides low-cost mobile communication by offering a SIM card that delivers unlimited nationwide calling and texting over 5G with free essential data at no monthly fee. Revenue comes from selling data passes (hourly, daily, or as-needed) and optional premium features. It operates in the United States and Canada, targeting individuals, families, and small businesses seeking affordable options. Distinguishing factors include a zero-monthly-cost model for core services, a simple pay-as-you-go data-passing structure, and a focus on accessibility and inclusivity. The company aims to make affordable, reliable communication available to everyone, expanding access while maintaining budget-friendly plans.

Company size
201-500
Company stage
Grant
Total funding
$3.4M
Headquarters
Waterloo, Canada
Founded
2009

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