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Playlab Logo Playlab · IT - Software Development

Staff Fullstack Engineer

170000.00 - 210000.00 USD / Year · Job Posted February 21, 2026
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Job Description

Playlab seeks a Staff Fullstack Engineer to join our growing Engineering team. As a Staff Fullstack Engineer you'll be exploring and pushing the boundaries of what AI-native experiences can be - inventing new interfaces for AI interaction, building the tools that let educators create without code, and implementing the systems that help schools deploy at scale.

Job Responsibility

  • Architect and ship subsystems across the full stack - from React/Remix frontend to Node.js backend to integrations with Python AI services
  • Move fast to learn what works - ship small experiments quickly, then invest in productionizing what proves valuable
  • Stay on top of web technologies and best practices - evaluate new tools and patterns that improve the product
  • Work cross-functionally with designers, ML engineers, product, and customers to build experiences that solve real user needs
  • Write comprehensive tests and documentation for the features you build
  • Improve team processes and help drive strategic technical decisions
  • Mentor engineers on fullstack development, design patterns, and app architecture through pairing and reviews

Requirements

  • 7+ years building production web applications across frontend and backend
  • Strong experience with modern React frameworks (we use Remix) and TypeScript
  • Strong experience building backend services with Node and Typescript
  • Strong experience with databases, APIs, and integrations with external services
  • Able to work effectively with designers and translate designs into working features
  • Comfortable working cross-functionally and directly with customers to understand their needs
  • Thrive in high-agency, high collaboration cultures
  • Great communication that makes working remote-first work

Nice to have

  • Experience designing or building AI-powered interfaces
  • Background in real-time collaborative features (WebSockets, CRDTs, etc.)
  • Experience with educational technology or mission-driven organizations
  • Experience with Remix or similar React frameworks
  • Knowledge of accessibility and internationalization best practices
  • Experience integrating with LMS platforms or educational systems
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