Staff iOS Platform Engineer: AI-Driven Cross-Team Impact

Block; California City (CA); On-site; USD 264,000 - 395,000; Full time

Job summary

Block is seeking a Staff iOS Engineer on Product Platform to act as a hands‑on technical leader across iOS teams. You will shape architecture, build shared libraries, and drive high‑impact platform initiatives that scale across multiple product groups, including AI-enabled development workflows.

You will lead critical migrations, define standards, and raise the bar for testing, performance, security, and maintainability.

Qualifications

• 12+ years of professional software engineering experience.
• 8+ years in mobile-focused roles, including 4+ years building native iOS apps.
• Deep expertise in modern and legacy iOS frameworks, Swift, and Objective-C.
• Experience creating foundational systems, shared frameworks, or developer tooling.
• Proven record of leading multi-quarter initiatives with broad adoption.
• Ability to connect platform strategy to customer-facing SaaS products.
• Strong systems thinking and technical communication.
• Platform builder mindset with focus on adoption and outcomes.

Responsibilities

• Build and evolve foundational iOS systems, including architecture, navigation, and shared UI foundations.
• Design shared libraries, frameworks, and developer tools used by product teams.
• Lead multi-quarter migrations and foundational initiatives from proposal through adoption.
• Establish durable practices for testing, observability, performance, and security.
• Integrate AI-assisted development tools and verify AI outputs for quality.

Skills

iOS engineering

Swift

Objective-C

Architecture design

Mentoring

Cross-team collaboration

Platform thinking

Tools

SwiftUI

UIKit

Xcode

Build systems

Job description

Block is seeking a Staff iOS Engineer on Product Platform to act as a hands‑on technical leader across iOS teams. You will shape architecture, build shared libraries, and drive high‑impact platform initiatives that scale across multiple product groups, including AI-enabled development workflows.

You will lead critical migrations, define standards, and raise the bar for testing, performance, security, and maintainability.