iOS & Backend Engineer
Occipital
Twindo is at the forefront of revolutionizing the remodeling, architecture, and interior design industry through cutting-edge AI and computer vision technology. With our LiDAR-enabled iPhone or iPad scans, we capture precise 3D representations of homes in minutes, providing interactive models with accurate-to-the-inch measurements. Our proprietary process then turns these scans into highly detailed, editable, as-built files in industry-standard formats. Our technology was featured at Apple's keynote when the iPhone's LiDAR sensor was introduced, and we now model millions of square feet each month.
As a global virtual-first company, our team members are distributed worldwide, with a concentration in the US and Europe.
Location: Fully remote. We’re prioritizing candidates with solid overlap with US working hours (South America ideal).
We build a camera-heavy iOS app that scans real spaces and turns them into CAD deliverables. It combines ARKit, sensors, and internal CV libraries with standard features such as checkout and subscriptions. We’re hiring a senior engineer to raise quality and improve system design - not just ship more features.
Responsibilities
- Deliver product features end-to-end, with a bias toward shipping.
- Improve app state/data flow and app ↔ backend contracts.
- Drive practical adoption of automated testing: prioritize the networking/data/state layers and push toward “no new code without tests” over time.
- Improve reliability and clarity across complex user journeys (i.e., purchase/subscription flows and feature-flag combinations).
- Debug hard problems: crashes, concurrency/threading, performance, memory/lifecycle.
- Communicate clearly in English (written and spoken) and collaborate well across roles.
Qualifications (Must-haves)
- You’ve shipped and maintained real production iOS apps.
- Strong Swift + iOS fundamentals: networking, persistence, lifecycle, performance.
- Comfortable with Swift Concurrency (async/await) and can reason about threading bugs (GCD familiarity helps).
- UIKit + SwiftUI experience (we’re ~60% SwiftUI / ~40% UIKit), Core Data experience.
- Strong grasp of the realities of distributed systems from a client perspective: retries, idempotency, eventual consistency, and degraded-mode UX.
- Testing discipline: XCTest; architectural testability; UI and snapshot tests are a plus.
Nice-to-haves
- ARKit / camera-heavy apps / sensor-heavy work.
- Designed sync / high-volume networking features with explicit server-load considerations (request budgets, batching/pagination, concurrency limits, retries/backoff).
- Habit of writing mobile designs that include app↔backend contract details: failure modes, rate limiting, and how we validate performance (metrics/tests).
- Experience collaborating with backend to evolve APIs for efficiency (batch endpoints, server-side filtering, etc.), instead of scaling by “more client requests.”
- WKWebView + JS/native boundary debugging.
How we work
- Remote-first, cross-functional team (iOS, Backend, QA, CV, Product/Design).
- AI-assisted coding is encouraged; good judgment is required.
- Release cadence aims for ~2-week TestFlight cycles (subject to change).
