Senior Front End Software Developer (AI, React, JavaScript) - Remote US

Overview In this role you will build secure, high-performance SPA front-ends and widgets that power Signals Notebook. You will collaborate with cross-functional teams to define priorities, specifications, and features, delivering reusable, testable UI components. You will shape the frontend architecture and ensure cross‑platform consistency while applying design sensibilities. This position offers the chance to work on AI-enabled front-end features within a mission-driven health-sciences company. Compensation / BenefitsMedical, Dental, and Vision Insurance OptionsLife and Disability InsurancePaid Time-OffParental Benefits401k with Company MatchEmployee Stock Purchase Plan ResponsibilitiesCreate secure, performant SPA front-ends and widgets across platformsCollaborate with teammates on priorities, specs and feature implementationWrite well-documented, reusable, and testable codeBuild and maintain high-impact frontend functionality for Signals Notebook Key requirements3-4+ years of professional experience3-4+ years UX and Design knowledge3-4 years JavaScript programming skillsStrong React programming skillsExperience integrating with server-side code to produce dynamic pagesExperience with cross-browser and cross-platform compatibilityAgile software development experienceOwnership mindset and strong work ethicTeamwork-oriented with collaboration across teamsHands-on experience with AI tools for developmentteamwork orientationcollaboration across teamsentrepreneurial mindsetReact (components)JavaScriptTypeScript (preferred)