Staff Engineer - Platform Frontend

The role

You will own the architecture of the platform front-end UI, which every other team builds on. You will set technical direction across multiple teams and lead multi-quarter migrations, staying hands-on with code.

What you will do

• Design so a broken or slow remote degrades one surface, not the whole application
• Own deployment and versioning for independent releases, including contract testing, staged rollout and fast rollback
• Reduce bundle size and dependency-graph bloat through code splitting, shared chunks, preloading and caching
• Reduce main-thread cost, re-render cost and memory leaks, and handle production-only regressions
• Define performance metrics, instrument them in real-user monitoring and enforce budgets in CI
• Set and enforce accessibility (WCAG 2.2 AA), internationalization and cross-browser support through automated checks
• Write proposals, review designs and code, and mentor senior and mid-level engineers across the organization
• Lead the target front-end architecture and its migrations, agreed across teams
• Own the application shell and its contracts: bootstrapping, routing, auth-aware navigation, error boundaries and cross-application state
• Own the module federation topology, shared dependencies and version skew between remotes

Required qualifications

• 9+ years of front-end development experience
• Expert-level JavaScript, TypeScript, HTML and CSS, with a deep understanding of the browser
• Deep production experience with a modern component framework; primarily Vue 3 (Composition API), with strong React, Angular or Svelte experience welcome if willing to go deep on Vue
• Demonstrated architectural ownership of a front-end architecture and migrating a real codebase
• Hands-on production experience with micro-frontends or module federation, including failure modes; equivalent experience decomposing a monolith also considered
• Proven track record optimizing large-scale web applications, with a specific example and numbers
• Experience with modern build tooling at scale (Vite, Webpack, Rspack, Turborepo or Nx)
• Working knowledge of accessibility as an engineering discipline, including screen reader testing
• Strong written communication
• A track record of mentoring engineers and driving change across teams you do not manage

Nice to have

• Familiarity with Node.js, server-side rendering and open-source contributions

Before you apply

• Vue experience is a plus; strong React, Angular or Svelte backgrounds are welcome

About the company

HighLevel is an AI-powered business operating system serving over 1 million businesses in 150+ countries, with more than 2,000 team members across 10+ countries. It operates as a global, remote-first organization.