Published: Mon, 01 Sep 2025 22:50:14 GMT
Position: Staff Software Engineer
Company: Linus Health
Location: Boston, MA
Overview:
Linus Health is a leading digital health company based in Boston, dedicated to transforming brain health globally. Our mission is to utilize cutting-edge neuroscience, clinical expertise, and AI to advance early detection and intervention for cognitive and brain disorders, empowering individuals to live longer and healthier lives. With a team of over 100 members and growing, we are entering an exciting phase of rapid growth and are seeking top talent to help shape our future.
Role:
We are seeking a highly skilled Staff Software Engineer to lead our mobile app development for both iOS (Swift) and React Native. In this role, you will set the technical direction, design and build reusable component libraries, and ensure high quality, performance, and accessibility standards. Additionally, you will champion AI-assisted engineering to accelerate development and integrate AI-powered visualizations to aid clinicians and patients in understanding complex brain health data. This cross-functional role is crucial to our mission and offers the opportunity to make a significant impact.
Responsibilities:
– Lead the mobile architecture for iOS (Swift/SwiftUI/UIKit) and React Native, with a focus on modularity, performance, security, and observability
– Develop and maintain reusable mobile component libraries, including design-system alignment, theming, accessibility, localization, and dark mode
– Integrate AI-enabled features that visually display insights (such as charts, plots, and progressions) in a responsible manner, adhering to privacy-by-design principles and ensuring auditable outputs
– Set high engineering standards for testing (unit/snapshot/e2e), CI/CD for mobile, OTA strategies, release automation, crash analytics, and telemetry
– Mentor and support team members, driving clear design documentation, ADRs, and code reviews, and collaborating closely with Product, Design, Data Science/Medical, and Security teams
– Lead cross-team initiatives focused on performance, reliability, offline/edge patterns, network/data sync, app startup time, and bundle size reduction
– Promote AI-assisted workflows to increase delivery speed and quality, utilizing intentional prompts, verification practices, and secure usage guidelines
– Collaborate with Data Science/Medical teams to safely and clearly integrate model outputs into the UI, including uncertainty and context visualization
Requirements:
– 10+ years of software engineering experience, with significant experience in mobile development
– 5+ years of experience building and shipping iOS apps in Swift
– 3+ years of experience with React Native at scale
– Expertise in Swift/SwiftUI (and/or UIKit), Xcode tooling, Instruments, and Apple platform fundamentals
– Strong understanding of React Native fundamentals, including bridge/native modules, performance profiling, Hermes, Metro/bundling, OTA, and navigation
– Proven track record of designing reusable component systems, including design tokens, accessibility, theming, and API ergonomics
– Hands-on experience utilizing AI to accelerate coding and productizing AI in-app
– In-depth knowledge of mobile data flows, offline-first sync, error handling, and app state management
– Quality mindset, with experience in unit/UI/e2e testing, monitoring, crash analytics, and metrics/SLOs
– Familiarity with security and privacy principles in healthcare contexts
– Excellent technical communication skills, including design documentation, ADRs, and tradeoff analysis
Nice to Have:
– Experience in digital health or clinical workflows, with knowledge of regulated environments
– Data visualization skills and the ability to communicate uncertainty effectively
– Familiarity with native Android development (Kotlin) or cross-platform build/release expertise
– Previous experience owning design systems or component libraries used across multiple apps/teams
– Experience with on-device ML or efficient edge inference patterns
– Experience in architecting B2B and consumer-facing applications
Values:
At Linus, we live by our values: Be Real, Be Wise, Be Noble, Be a Team, Be Masters of Our Craft, Think Big and Act Bold. In this role, you will embody these values by:
– Being real: communicating tradeoffs, risks, and results candidly and regularly
– Being wise: making evidence-based decisions and selecting architectures and AI use cases with clear mitigations
– Being noble: prioritizing privacy, safety, and clinical trust in every feature we ship
– Being a team: elevating others through mentoring, helpful code reviews, and excellent documentation
– Being masters of our craft: setting high standards for mobile quality, performance, and maintainability, including AI-assisted workflows
– Thinking big and acting bold: leading step-change initiatives with staged rollouts and measurable outcomes
Linus Health is an equal opportunity employer and is committed to fostering a diverse and inclusive workplace. All qualified applicants will receive consideration for employment without regard to race, religion, color, national origin, sexual orientation, gender, gender identity or expression, age, genetic information, disability, or any other characteristic protected by law. We believe that diversity is crucial to the growth of our company and understand the importance of creating an environment where everyone has a voice. We are also committed to providing reasonable accommodations for candidates with disabilities during the recruitment process. If you require assistance due to a disability, please contact us. Apply link