# Web Developer, Marketing Site at Sierra > Onsite · United States · Unspecified · Software engineering · open. Source: https://alderhq.app/jobs/ashby%3ASierra%3A3f6911c0-b49b-4d8e-a434-4064df2cde44 (read 2026-11-06). ## Facts (observed) - Company: [Sierra](https://alderhq.app/companies/sierra) - Location text: San Francisco, CA - Where it can be done from (inferred): Onsite · United States (evidence: "Location: San Francisco, CA") - Posted: 2026-09-16 (51 days ago) - First seen by alder: 2026-11-02 · last verified: 2026-11-04 - Reposted: 0 times · edited: 0 times - Apply on the employer's site: https://jobs.ashbyhq.com/Sierra/3f6911c0-b49b-4d8e-a434-4064df2cde44 - Skills listed (inferred): TypeScript, JavaScript, React ## Pay and sponsorship - Posted pay: not posted - Market band for similar posted roles (SF Bay Area, n 1752): p25 $161k, median $200k, p75 $239k ## Description (the employer's text) ### About us Sierra is the leading platform for customer-facing AI agents, working with many of the world's biggest brands — including The GAP, Rocket Mortgage, SoFi, Sutter Health, and SoftBank — to transform how they serve customers and grow their businesses. We are primarily an in-person company based in San Francisco, with growing offices across North America, Europe, and Asia. We are guided by a set of values that are at the core of our actions and define our culture: Trust, Customer Obsession, Craftsmanship, Intensity, and a commitment to balancing Family along the way. These values are the foundation of our work, and we are committed to upholding them in everything we do. Our co-founders are Bret Taylor and Clay Bavor. Bret currently serves as Board Chair of OpenAI. Previously, he was co-CEO of Salesforce (which had acquired the company he founded, Quip) and CTO of Facebook. Bret was also one of Google's earliest product managers and co-creator of Google Maps. Before founding Sierra, Clay spent 18 years at Google, where he most recently led Google Labs. Earlier, he started and led Google’s AR/VR effort, Project Starline, and Google Lens. Before that, Clay led the product and design teams for Google Workspace. ### What you’ll do Own frontend across product and marketing surfaces: You will work across both our core product interface and customer-facing web pages, ensuring a cohesive, polished user experience across all touch points. This includes building features in the web app and also collaborating on our website to keep branding and user experience consistent and high-quality. Build content infrastructure that unblocks the team: You'll develop our CMS (we use Sanity) to give content and marketing teams self-serve tooling, structured content models, and preview/staging workflows, so routine changes don't depend on engineering. You'll design content schemas and editing experiences that let non-engineers move quickly and confidently. Champion growth: You'll partner with marketing, sales, and operations to implement analytics and enable experimentation, turning business goals into shipped, instrumented features so we always know what's actually working. Make localization first-class: You'll support localization and internationalization — multilingual content, translation workflows, and the infrastructure behind them, so non-English experiences are genuinely first-class rather than afterthoughts. Treat performance as a feature: You'll own Core Web Vitals, media and asset optimization, and the diagnosis of the subtle issues: layout shift, lazy-loading, video quality, render timing. You care about speed, and you measure it. Hold a high bar for accessibility: You'll champion semantic markup, keyboard navigation, screen-reader support, and WCAG-minded component design, ensuring the site is usable by everyone who visits it. ### What you'll bring Marketing and growth fluency: You've worked on marketing or growth-facing web before, and you understand the business context — funnels, conversion, SEO, analytics, and A/B testing—not just the code. We care about this more than years of experience or exact seniority. Strong frontend fundamentals: You're fluent in modern JavaScript and TypeScript and React (or a similar framework), with a real sense for UI/UX craft and an instinct for getting the small details right. A genuine commitment to performance and accessibility: You care about both deeply and can point to specific, concrete things you've done to improve them in production. Comfort with structured content: You've worked with a headless CMS and structured content models before. Sanity experience is a plus. Strong cross-functional collaboration: You work well with non-engineers — designers, content writers, and marketers — and can translate their goals into technical work, and technical tradeoffs back into terms they can act on. Even better... Localization and i18n experience: You've worked with internationalization systems and translation tooling before. Analytics and experimentation depth: You're familiar with web analytics and experimentation platforms and know how to use them to drive decisions. --- Data: alder (https://alderhq.app). Cite https://alderhq.app/jobs/ashby%3ASierra%3A3f6911c0-b49b-4d8e-a434-4064df2cde44 and the date you read it. Observed facts come from the employer's own listing; location reach, level, family and skills are inferences.