Principal Mobile Engineer

Tranzeal Incorporated; Los Angeles (CA); On-site; USD 180,000 - 260,000; Full time

Job summary

Tranzeal Incorporated seeks a Principal Mobile Engineer to lead architecture and development of AI-enabled iOS apps with strong Android knowledge. The role is hands-on leadership (~50% coding) focusing on mobile architecture, system design, and performance.

You will own architecture decisions, drive scalable mobile solutions, and collaborate with Product, Design, Backend, QA, Data, and AI teams, influencing roadmaps and senior stakeholders.

Qualifications

• 10+ years of mobile development.
• Strong hands-on iOS experience with architecture ownership.
• Experience with CI/CD and production releases.

Responsibilities

• Own mobile architecture and strategy while contributing to production engineering.
• Lead architecture discussions and drive scalable, secure mobile designs.
• Collaborate with Product, Design, Backend, QA, Data, and AI teams to align roadmaps.
• Ensure accessibility and mobile usability standards are met across apps.

Skills

Swift

SwiftUI

UIKit

Combine

Android/Kotlin

REST APIs

OAuth2

Mobile architecture

System design

CI/CD

Git

TDD/Automated testing

Security

AI/ML awareness

Tools

Datadog

Adobe Analytics

Azure DevOps

Fastlane

Firebase

Job description

We are seeking a Principal Mobile Engineer to lead the architecture and development of modern, AI-enabled mobile applications. This is a hands-on technical leadership role (~50% coding) focused primarily on iOS, with working Android knowledge.

Required:

• Principal/Staff-level mobile engineering experience with 10+ years of mobile development and strong recent hands-on iOS experience
• Expert Swift, SwiftUI, UIKit, Combine; working knowledge of Android/Kotlin
• Datadog, Adobe Analytics, and Azure DevOps — mandatory
• Strong ownership of mobile architecture, system design, scalability, performance, security, and engineering standards
• Experience with CI/CD, Git, Fastlane, Firebase, automated testing/TDD, and App Store/Google Play releases
• REST APIs, OAuth2, cloud-connected mobile architecture (Azure/AWS), mobile analytics, crash monitoring, and production observability
• Knowledge of WCAG/ARIA and accessible mobile development
• Experience partnering with Product, Design, Backend, QA, Data, and AI teams, influencing roadmaps, and communicating technical decisions to senior stakeholders
• Familiarity with AI/ML capabilities and AI-assisted development workflows

Preferred:

• Fintech, payments, banking, or consumer-facing mobile experience
• Identity verification, push notifications, or mobile payment platforms
• Open-source contributions or technical publications

Ideal candidate:

A hands-on technical leader who can own mobile architecture and strategy while remaining deeply involved in production engineering.