Eternis is building systems for a world with highly capable AI.
We envision a world where everyone has a digital twin that understands your preferences, evolves with you, makes millions of decisions daily, and coordinates seamlessly with other twins. While power over AGI and resources consolidates into the hands of a few, we're building a different future—one where billions of digital twins govern powerful multi-agent systems with access to capital, physical resources, and real-world agency.
🧠 Eternis’ founding team consists of repeat-founders and operators who have held senior roles at Binance, Spectral, Dfinity and Google. We're a well-funded startup ($30M raised) based in SF.
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❇️ What we're building:
- A beautiful + seamless iOS app Enchanted to run any open-source AI models
- Digital twins for everyone
- Secure execution environments for verifiable execution, private storage, and autonomous operation
- Protocols for large-scale coordination between intelligent agents
- Memory architectures, open-source, self-hosted infrastructure
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Ideal candidate Is at a point in their life where they want to make an impact on a world scale, believes this is truly possible by leveraging AI, and wants to work alongside a highly motivated team to make it happen. Has a deep sense of urgency and wants to solve problems at high speed. You must use AI tools daily.
Role description
Entrepreneurial and self-motivated engineer with a focus on backend
Able to both hack projects quickly and scale up existing projects, motivated by product / users in addition to the engineering work itself
Drive prototyping / MVP development with a fast-paced and experimental process, maintaining the goal of learning from technical obstacles and user feedback, and iterating quickly.
You will:
- Lead the ongoing development of our iOS / macOS / visionOS app Enchanted and extend it further across Apple ecosystem (wCatchOS). Follow best patterns to allow seamless integration and state syncing across devices.
- Implement new features to improve the user experience for users and stay up-to-date with the latest open-source models and utilise them across text, speech and vision.
- Optimize application performance, cross-device compatibility and new integrations.
Requirements
- Experience across Apple development ecosystem - UIKit, AppKit, Swift and SwiftUI. You follow the latest improvements across Apple ecosystem and know exactly what came out in the last WWDC
- Very comfortable with complex animations and transitions. You actively try to improve (follow KavSoft or similar sources for inspiration and ideas)
- As a reference problem - you should be able to build efficient implementation of Apple Photos pinch zoom transition
- Familiarity with concurrency, performance optimization, and memory management
- Strong problem-solving skill and attention to detail
- When encountering problems with external packages you should feel confident to fork a project and fix the problem
- Familiarity with building a single application for iOS/macOS/visionOS/watchOS