Senior Frontend Engineer

Description

• Build and own the Replika web app and our web growth surfaces — marketing site, conversion flows, account and dashboard surfaces, and the supporting tools around them. • Architect frontend systems that scale. State management, real-time updates, performance budgets, the works. • Ship live, conversational features on the web. Companions that feel responsive, not laggy. Sub-second is the bar. • Work directly with product, design, and backend engineering. No PMs translating tickets at you. You’re in the room. • Wire up analytics and experimentation across web surfaces. We test, we learn, we iterate. Decisions come from data, not vibes. • Set the bar for code quality, performance, and craft. New hires will model what you ship.

Requirements

• 5+ years of commercial frontend experience • Deep expertise in React and Next.js — you’ve shipped production apps with both, not just dabbled. • Rock-solid web fundamentals. HTML, CSS, JavaScript, TypeScript. • Strong opinions on state management. Redux, Zustand, TanStack Query — you’ve used them, you know the trade-offs, you pick the right one for the job. • Comfortable working with REST APIs and WebSockets. • Real-time data flow doesn’t faze you. • You build responsive layouts that actually hold up. CSS Modules, Styled Components, whatever the situation calls for. • Fluent with Git, collaborative workflows, modern build tools (Webpack, Vite), CI/CD pipelines, and linters. • You ship clean, you ship fast. • End-to-end ownership. You take a problem from spec to production and don’t need a project manager hovering. • Strong product and business sense to match. • You use AI development tools (Codex, Claude, Cursor) seriously, and have a view on where they help and where they don’t. • Strong English. Upper-Intermediate or higher.

Benefits

• Competitive compensation • Flexible job schedule and generous vacation policy • Unlimited access to the latest AI coding assistants • No corporate bs • Direct impact on millions of worldwide users • Fully remote

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