Senior iOS Engineer

webAI•Austin, TX

About The Position

webAI is pioneering the future of artificial intelligence by establishing the first distributed AI infrastructure dedicated to personalized AI. We recognize the evolving demands of a data-driven society for scalability and flexibility, and we firmly believe that the future of AI lies in distributed processing at the edge, bringing computation closer to the source of data generation. Our mission is to build a future where a company's valuable data and intellectual property remain entirely private, enabling the deployment of large-scale AI models directly on standard consumer hardware without compromising the information embedded within those models. We are developing an end-to-end platform that is secure, scalable, and fully under the control of our users, empowering enterprises with AI that understands their unique business. We are a team driven by truth, ownership, tenacity, and humility, and we seek individuals who resonate with these core values and are passionate about shaping the next generation of AI. About the role We’re hiring a Senior iOS Engineer to build and ship core product experiences on iOS, especially chat, memory, conversations, and group experiences. You’ll work closely with the design team to deliver polished, high-performing UI that feels effortless. This is a highly hands-on role for someone who cares about craft, speed, and product outcomes and who can take a feature from idea to launch with minimal oversight.

Requirements

5+ years of professional iOS development experience, with meaningful ownership of shipped features.
Strong proficiency in Swift and SwiftUI, including building complex, interactive UI.
Excellent understanding of iOS fundamentals: concurrency, data flow/state, networking, persistence, and debugging.
Demonstrated ability to deliver high-quality UI and animations and to collaborate effectively with designers and motion specialists.
Solid performance instincts: comfortable with Instruments, profiling, and systematically eliminating UI jank and memory issues.
Experience designing robust client behavior in real-world conditions (spotty networks, backgrounding, app restarts, state restoration).
Strong communication and collaboration skills; reliable feature ownership from spec → implementation → launch.

Nice To Haves

Experience with offline-first architectures (local-first data models, sync engines, conflict resolution patterns).
Experience with on-device ML via CoreML and/or MLX, including model integration and optimization.
Familiarity with Metal or GPU/performance concepts for advanced rendering or compute-heavy workflows.
Experience improving product metrics (activation, retention, engagement) through iterative UI/UX improvements.

Responsibilities

Own end-to-end features across the iOS app, including: Chat experiences (composer, streaming updates, attachments, latency-sensitive UI)
Memory and personalization flows (capture, edit, display, privacy-minded UX)
Conversation experiences (threading, search, navigation, state restoration)
Group experiences (shared contexts, multi-user UX patterns, real-time-ish interactions)
Build high-fidelity Swift/SwiftUI UI with clean architecture, strong state management, and thoughtful component design.
Work tightly with design to implement nuanced interaction details—gestures, transitions, micro-animations, haptics, while still preserving performance.
Be performance-obsessed: profile and optimize frame rate, startup time, memory usage, and network/UI concurrency; eliminate stutters and regressions.
Contribute to offline-first reliability: design resilient local persistence, caching, and sync behaviors so core experiences work under poor connectivity.
Support on-device ML experiences (as needed): integrate CoreML/MLX-driven features and help optimize inference pipelines for latency, battery, and thermal constraints.
Ship with quality: write tests where valuable, set guardrails against regressions, and partner with QA/release stakeholders to ensure stable releases.
Collaborate cross-functionally: work with product and backend partners to scope, de-risk, and deliver features; communicate tradeoffs and options clearly.
Bring strong product instincts: identify UX friction, propose improvements, and make pragmatic decisions that improve user outcomes and not just code elegance.