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Senior Staff Software Engineer, iOS Platform

United States - Denver, CO💼 Full-time🗓 2026-07-28 → 2026-09-26

Core

Architect, build, test, and refine Gusto's iOS app and supporting embedded mobile web views to empower small business owners.

Role type

Senior Staff Software Engineer, iOS Platform

Builds

Gusto's mobile platform, shared services, and foundational infrastructure for iOS apps.

Domain

Fintech / HR Tech / Small Business Services

Deliverable

production ML models | product features | infrastructure

Required skills

Swift, iOS software engineering, mobile software engineering, iOS testing frameworks, platform component development, CI/CD, automated testing, release orchestration, GraphQL, cross-functional collaboration

Preferred skills

Analytics and monitoring tools, mobile infrastructure at scale, diverse tech stack experience, mentoring

Technologies

Swift, iOS, GraphQL, CI/CD, automated testing environments

Responsibilities

Architect and build the iOS app and embedded web views; enhance mobile infrastructure including build pipelines and release processes; build foundational services like push notifications and localization; develop and iterate product features integrating core business functions; collaborate with product, design, and infrastructure teams to solve technical pain points.

Seniority

Senior Staff, hands-on IC with mentorship

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