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Sierra

Web Developer, Marketing Site

San Francisco, CA$230k–$290kfulltimemidAdded today

About this role

Sierra is seeking a web developer to own the frontend across their product and marketing surfaces, building customer-facing experiences and content infrastructure using modern tools like React and Sanity CMS. You'll balance growth-focused features with performance and accessibility, partnering closely with marketing, design, and content teams to scale the platform.

What you'll do

  • Develop and maintain frontend for both product interface and marketing website, ensuring consistent UX across touchpoints
  • Build and optimize Sanity CMS infrastructure with self-serve tooling and content models for non-technical teams
  • Implement analytics, experimentation, and A/B testing to drive growth and measure business impact
  • Optimize Core Web Vitals, media performance, and diagnose rendering and loading issues
  • Design and implement internationalization and localization infrastructure for multilingual support
  • Ensure WCAG compliance, semantic markup, and accessibility standards across all frontend code

What they're looking for

  • JavaScript/TypeScript and React (or similar modern framework)
  • Headless CMS experience, preferably Sanity
  • Web performance optimization and Core Web Vitals
  • Web accessibility (WCAG, semantic HTML, screen readers)
  • Analytics and A/B testing platforms
  • Internationalization (i18n) and localization workflows
  • UI/UX design sensibility and attention to detail
  • Cross-functional collaboration with non-technical stakeholders
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Sierra

Sierra builds production-grade AI agents for enterprise clients in insurance, financial services, and other industries, enabling companies to automate complex business processes and enhance customer experiences. The company is hiring Software Engineers to design and deploy mission-critical AI systems, develop platform infrastructure, and work directly with enterprise customers on agent development and optimization.

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Likely interview questions

  • Walk us through a specific project where you optimized web performance—what metrics did you target and how did you measure success?
  • Describe your experience with headless CMS platforms and how you've structured content models for non-technical users.
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