Senior Staff iOS Engineer — Remote Platform Architect

Socket.dev; California (MO); On-site; USD 264,000 - 395,000; Full time

Benefits offered by this job

Remote work

Medical insurance

Flexible time off

Retirement savings plans

Modern family planning

Job summary

Block is seeking an senior iOS architect to define direction for iOS architecture, performance, reliability, security, and developer experience across multiple teams. You will start by tackling important, unowned problems, then create interfaces, documentation, and leaders to enable broad adoption.

You will lead strategic, multi‑quarter initiatives, build prototypes and reference implementations, and mentor senior engineers to establish an ownership model that scales beyond your role.

Qualifications

• 12+ years of professional software engineering experience.
• 8+ years in roles where mobile engineering was a primary responsibility, including 4+ years building native iOS products.
• Deep expertise across modern and legacy iOS frameworks, Swift, and Objective‑C.
• Experience creating foundational systems, shared frameworks, or developer tooling used across multiple teams.
• A record of leading strategic, multi‑quarter initiatives with broad adoption and durable impact.
• Experience connecting platform strategy to customer‑facing and multi‑tenant SaaS products that support business operations.
• Strong systems thinking, technical communication, mentoring, and organizational influence.

Responsibilities

• Set direction for iOS architecture, performance, reliability, security, and developer experience.
• Lead multi‑quarter migrations and foundational initiatives through broad adoption.
• Develop senior engineers and create an ownership model that does not depend on you as a permanent bottleneck.
• Define strategy, architecture, standards, and measures of success across teams and applications.
• Establish durable practices for quality, testing, observability, release safety, and maintainability.

Skills

Software engineering

Mobile engineering

Native iOS development

Swift

Objective‑C

System architecture

Mentoring

Leadership

Tools

Xcode

Instruments

SwiftUI

UIKit

Swift Concurrency

Protocol Buffers

Bazel

Job description

Block is seeking an senior iOS architect to define direction for iOS architecture, performance, reliability, security, and developer experience across multiple teams. You will start by tackling important, unowned problems, then create interfaces, documentation, and leaders to enable broad adoption.

You will lead strategic, multi‑quarter initiatives, build prototypes and reference implementations, and mentor senior engineers to establish an ownership model that scales beyond your role.