iOS Engineer, Field App

About the role

Build the field app that lives in the truck — offline-first, optimistic sync, and forgiving of bad signal. You will spend real time with technicians and ship to a small device fleet weekly.

Responsibilities

• Own the iOS field app end to end — sync, UI, and crash budget.
• Design the optimistic write path against a queue that resolves on reconnect.
• Instrument battery, network, and rendering on real devices.
• Ride along with technicians at least once a quarter.

Basic qualifications

• 4+ years shipping production iOS apps in Swift.
• Experience with CoreData, GRDB, or an equivalent on-device store.
• Comfort with networking, retries, and conflict resolution.
• Willingness to travel quarterly for field work.

Preferred skills and experience

• Built or maintained an offline-first product at scale.
• Experience with SwiftUI in production.
• Worked on tools used by non-office staff (drivers, technicians).
• Comfort reading TypeScript to debug an API contract.

About Zaras

Zaras is building the operating system for service businesses — one record that carries the business from first call to deposit cleared. Our team is small, hands-on, and field-first. We operate with a flat structure. All employees are expected to contribute directly to the work. Leadership is given to those who show initiative and consistently deliver.

Zaras is an equal opportunity employer.