Senior Swift Engineer

Giga•San Francisco, CA

1d•$200,000 - $400,000•Onsite

About The Position

Giga is a voice AI startup that has recently raised a $61M Series A. The company is working with Fortune 500 customers to deploy the next generation of customer experience through real-time AI agents that can understand emotion, resolve issues instantly, and scale across the world's largest enterprises. Industry leaders like DoorDash trust Giga with their most complex support and operations workflows across voice, chat, and email, in high-stakes regulated environments where accuracy and compliance matter. Giga is at an exciting inflection point with significant commercial success and ambitions to become the go-to AI platform for all enterprise automation, powered by its voice superintelligence. The work affects millions of people daily, and the team has the autonomy to make a true impact with brilliant founders, a clear path forward, and strong momentum. This role is on-site in San Francisco in the Dogpatch neighborhood.

Requirements

6+ years of native iOS (Swift) engineering experience, with a track record of shipping complex apps or SDKs at scale.
Strong opinions on clean SDK and API design, with deep empathy for external developers integrating the work.
Ability to take a vague product requirement and turn it into a fluid, responsive mobile experience without much guidance.
Deep UX sensitivity, focusing on details like motion, gesture ergonomics, and accessibility.
Understanding of iOS depths and ability to push platform-native capabilities (voice routing, background execution, app extensions) to their limits.
Desire to be hands-on in a role where senior engineers ship code.
Comfortable occasionally crossing the stack (e.g., GraphQL, Go) to unblock oneself and fine-tune end-to-end flows.

Responsibilities

Own our iOS SDKs, which customers use to embed Giga's chat and voice agents into their mobile apps.
Lead the technical direction for how Giga agents appear on mobile, making architectural decisions around UI surfaces, animations, voice interactions, and performance.
Write code, own the iOS infrastructure, and ship features.
Work closely with design and the web frontend team to identify and build next-generation mobile experiences.
Ensure native integrations are considered and cohesive with the core product.
Drive the technical direction for how Giga agents live on mobile devices.
Lead the design, implementation, and evolution of native iOS SDKs, making core architectural tradeoffs for seamless embedding of voice and chat agents.
Push the boundaries of native mobile capabilities for agent interaction with iOS features like voice routing, background execution, notifications, and app extensions.
Focus on UI and performance excellence, including motion, gesture handling, and accessibility, ensuring smooth animations, zero latency, and resilient offline behavior.