Offline-First Data & Sync: Build and improve sync, download, and annotation flows that stay correct on poor connectivity, covering concurrent sync modes, accurate progress, durable upload queues, and local state that matches what’s on disk.
Testing & Reliability: Define test strategies and acceptance criteria before implementation, including unit, snapshot, and concurrency-deterministic tests, to ensure graceful degradation and smooth feature flag rollouts.
Observability & Performance: Instrument features with analytics and telemetry. Diagnose main-thread stalls, memory pressure, and crashes using Instruments and crash reports, and fix them at the root cause with measured results.
Technical Clarity & Documentation: Document technical decisions, keep module boundaries and routing conventions consistent, and align with Android and web on shared contracts such as annotation geometry.
Mentorship & Quality: Mentor junior and mid-level engineers through detailed code reviews, architectural guidance, and best practices in modern iOS development.
What We’re Looking For
Experience: 5+ years of professional iOS development in Swift, shipping and maintaining a large production app.
Tech Stack Expertise: Strong UIKit and SwiftUI, deep Core Data knowledge (context and queue discipline, fetched results controllers, batching), and Swift concurrency (actors, Sendable, main-actor isolation) alongside Combine.
Education: Bachelor’s or Master’s degree in Computer Science, a related STEM discipline, or equivalent practical experience.
Engineering Impact: Track record of building offline-first or sync-heavy features, including cancellation, prioritisation, and failure handling, and of improving reliability and performance in a large modular codebase.
Problem Solving & Communication: Strong debugging and profiling skills, and the ability to explain complex designs clearly to cross-functional partners.
Mindset: Adaptable and growth-oriented, comfortable working across legacy and modern code and across product domains.
Preferable: Experience with PDF or document rendering SDKs, canvas or coordinate-space math (rotation, zoom), deep linking and QR scanning, SQLite and full-text search, iPad multi-window layouts, or Objective-C. A background in construction or field-work software is a plus.
