Remote Senior Frontend Engineer — Marketing & AI Growth

Devconnectplatform; Northern (KY); Remote; USD 120,000 - 150,000; Full time

Benefits offered by this job

PTO 5 weeks

Winter holiday break

4-day week option

Parental leave

Sabbatical

Health insurance

Job summary

Close is seeking a Senior Frontend Engineer – Marketing to own and evolve the marketing site for speed, accessibility, and AI-powered insights. You’ll work with Marketing and Engineering to ship page builds, experiments, and features that improve traffic and conversions.

You will leverage a modern stack (Astro) and a headless CMS (Sanity) to deliver world-class experiences while measuring performance and SEO impact at scale.

Qualifications

• 5+ years of experience building marketing websites with a strong focus on conversions.
• Built beautiful, conversion-focused sites and optimized for speed, SEO, and AI readouts.
• Familiar with a modern stack (Astro) and a headless CMS (Sanity).
• Skilled in measurement: cookies, analytics, experimentation tooling via Segment/Amplitude/Customer.io.

Responsibilities

• Build and continuously improve Close's marketing website for speed, interactivity, and polish.
• Own performance, technical SEO, and visibility to search engines and AI agents.
• Instrument site measurement and collaborate on experiments and data pipelines.

Skills

Frontend engineering

Marketing websites

Performance optimization

Tools

Astro

Sanity CMS

Vercel

Segment

Amplitude

Customer.io

Job description

Close is seeking a Senior Frontend Engineer – Marketing to own and evolve the marketing site for speed, accessibility, and AI-powered insights. You’ll work with Marketing and Engineering to ship page builds, experiments, and features that improve traffic and conversions.

You will leverage a modern stack (Astro) and a headless CMS (Sanity) to deliver world-class experiences while measuring performance and SEO impact at scale.