iOS Engineer
twinmind aiMenlo Park, CA
iOS Engineer
twinmind aiMenlo Park, CALead L6
Software DevelopersComputer Systems Engineers/ArchitectsComputer and Information Research Scientists
iOS Engineer - TwinMind - Capture Memories, Ask AI Anything Nov 1, 2025 Fulltime / Internship
About the job:
*We're Building Something Extraordinary*Imagine an AI that remembers every conversation, every idea, every moment that shaped your thinking. Not to replace your mind, but to amplify it. To help you connect dots you never saw before and whisper the perfect insight just when you need it most. We're TwinMind, and we're creating the world's first AI "second brain"—one that captures everything you see and hear, building a perfect digital memory that makes you superhuman at being you. Our founding team has shipped moonshots at Google X, generated $1B+ revenue on Wall Street, contributed to Nobel Prize-winning discoveries, and grown startups to millions of users. We're backed by Silicon Valley's top VCs—the same visionary investors behind Facebook, Robinhood, and Zapier.
Job Overview:
- At TwinMind, you’ll be working alongside with experts in AI research, engineering, design, product, and marketing. You will be expected to experiment boldly, explore innovative solutions, and contribute to cutting-edge product development in a fast-paced, high-impact environment. We want to hire self-starters who want to get their hands dirty, learn whatever it takes, and produce results fast.* Build the iOS app that captures and processes audio/visual input in real-time* Create intuitive SwiftUI interfaces for searching and browsing personal memories* Implement efficient local storage and cloud sync for large datasets* Optimize for battery life and performance while running continuous background processing* Work directly with our AI team to integrate on-device language models
What We're Looking For:
- Strong experience in iOS development in Swift* Skilled at building beautiful frontends with SwiftUI following Figma designs* Familiar with data storage and synchronization with SwiftData, SQLite, CloudKit, etc.* Knowledge of iOS best practices for performance optimization and battery efficiency* Passion for creating clean, efficient, and well-documented code* Ability to work in a fast-paced startup environment and adapt quickly to changing requirements
Bonus Skills:
- Experience with natural language processing or speech recognition systems* Familiarity with Core ML, MLX, and on-device AI
Ready to Build the Future?Exceptional candidates will have the chance to join TwinMind full-time as one of the first ten founding members with significant equity.
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