About this role
Developers who enjoy combining interface craft with marketing infrastructure and take pride in building polished web experiences will thrive in this role at Sierra. The engineering team builds customer-facing AI agents for major global brands, and this position focuses squarely on the marketing site and web frontend. The person in the role will own frontend surfaces, build content infrastructure using headless CMS tools like Sanity, champion growth experiments, and ensure performance and accessibility standards remain high.
Sierra operates primarily as an in-person company based in San Francisco, with growing offices across North America, Europe, and Asia. The role exists to bridge the gap between engineering, marketing, and design, empowering non-technical teams with self-serve tooling while maintaining a rigorous technical bar for speed and accessibility.
What you will do
- Own frontend development across both product interfaces and customer-facing marketing web pages to ensure a cohesive user experience.
- Develop content infrastructure using Sanity to provide marketing and content teams with self-serve tooling, structured models, and preview workflows.
- Partner with marketing, sales, and operations teams to implement analytics and enable growth experimentation.
- Support localization and internationalization efforts by building the underlying infrastructure for multilingual content and translation workflows.
- Own Core Web Vitals, media asset optimization, and the diagnosis of performance issues including layout shifts and render timing.
- Maintain high accessibility standards through semantic markup, keyboard navigation, screen-reader support, and WCAG-compliant component design.
What you need
- Demonstrated experience working on marketing or growth-facing web properties with a solid understanding of business funnels, conversion, SEO, analytics, and A/B testing.
- Strong frontend fundamentals with fluency in modern JavaScript, TypeScript, and React or a comparable framework.
- Concrete, demonstrable experience improving web performance and accessibility in production environments.
- Familiarity with structured content models and headless content management systems.
- Strong cross-functional collaboration skills with the ability to translate non-technical goals into technical tasks and vice versa.
Nice to have
- Prior experience with Sanity CMS
- Localization and i18n implementation experience
- Depth in web analytics and experimentation platforms
- Experience integrating third-party services like video hosting or error monitoring into content workflows
Benefits
- Flexible unlimited paid time off
- Medical, dental, and vision benefits for employees and families
- Life insurance and disability benefits
- Parental leave and fertility and family building benefits through Carrot
- Free lunch, snacks, and coffee at the office
- Discretionary benefit stipend
Skills and tech stack
Questions candidates ask
Where is the team located?
Sierra is primarily an in-person company based in San Francisco, with growing offices across North America, Europe, and Asia.
What tools and technologies will I use?
The tech stack includes modern JavaScript, TypeScript, React or similar frameworks, and Sanity as a headless CMS.
What kind of background is required for this role?
Candidates need a background in marketing or growth-facing web development, strong frontend fundamentals, and familiarity with structured content, with an emphasis on practical skills over years of experience.