Founding iOS Software Engineer
Founding iOS engineer who owns the iPhone client of an early-stage AI assistant startup: building a production-grade Swift/SwiftUI app where AI interactions (streaming responses, retries, fallbacks) are central, optimizing performance, memory and battery, and collaborating with backend/ML engineers on API design.
- Compensation
- Not disclosed
- Location
- Not listed
- Work setup
- Not specified
- Seniority
- Not specified
- Employment
- Not specified
- Experience
- Not specified
- Category
- Mobile
- Posted
Skills
Must have
- Build and maintain iOS applications using Swift and SwiftUI
- Integrate AI-powered features through backend APIs
Nice to have
- Hands-on experience integrating AI-powered features into mobile apps
- Strong understanding of async/await, concurrency, and background tasks
- Solid iOS performance and memory optimization skills
- Experience shipping and maintaining production iOS apps
- Comfort designing for latency, partial failure, and non-deterministic AI behavior
- Exposure to CoreML or light on-device ML
- Familiarity with feature flags or remote configuration systems
- Strong intuition for AI UX patterns and user trust considerations
Full description
COMPANY OVERVIEW:
There are over 5 billion users using basic applications today such email, notes, tasks that are not AI-native. This company's mission is to build a proactive smart assistant for everyday users to bring intelligence to conversations, errands, organizing and workflows, with minimal prompting.
Their product focuses on achieving high reliability for long-running workflows, persistent context, and real-world task completion. The system must handle multi-step reasoning, interact with external tools, and remain reliable despite non-deterministic model behavior. The objective is to help users complete tasks daily enjoyable with over ~90%* reduced time.
The best products today in the world were built by small, world class teams. This is a high talent density and hands-on team. They make decisions collectively, move at rapid speed, striking a balance between shipping high quality work and learning. Joining the team requires the ability to bring structure, exercise judgment, and execute independently. The goal is to put in hands of users a truly magical product.
POSITION OVERVIEW:
As an iOS Software Engineer, you own the iOS client experience, how AI feels, responds, and performs in users’ hands. This is not a thin integration role. You will build a production-grade iOS application where AI interactions are central to product experience, and performance, reliability, and user trust are critical.
RESPONSIBILITIES:
- Build and maintain iOS applications using Swift and SwiftUI.
- Integrate AI-powered features through backend APIs.
- Design UX patterns for AI interactions, including loading states, streaming responses, retries, and fallbacks.
- Optimize performance, memory usage, and battery efficiency.
- Capture user signals and feedback to support AI evaluation and iteration.
- Collaborate closely with backend and ML engineers on API design and system behavior.
- Maintain high App Store quality, stability, and production reliability.
PREFERRED PROFILE:
- Hands-on experience integrating AI-powered features into mobile apps.
- Strong understanding of async/await, concurrency, and background tasks.
- Solid iOS performance and memory optimization skills.
- Experience shipping and maintaining production iOS apps.
- Comfort designing for latency, partial failure, and non-deterministic AI behavior.
- Exposure to CoreML or light on-device ML.
- Familiarity with feature flags or remote configuration systems.