Senior Full Stack Engineer, Website Development

This is a fully remote position, open to applicants in United States.

📋 Description

• Create, develop, and sustain high-performing, responsive, and accessible web experiences utilized by millions of users.

• Take ownership of projects from start to finish, encompassing discovery, technical design, implementation, testing, deployment, measurement, and refinement.

• Develop scalable frontend architecture, reusable components, and content models.

• Establish and maintain integrations across web applications, CMS, analytics and experimentation platforms, APIs, and other Calendly systems.

• Collaborate with Marketing, Content, SEO, Design, Product, and Engineering teams to translate business and customer requirements into scalable technical solutions and efficient publishing workflows.

• Implement technical SEO and Answer Engine Optimization best practices to enhance content visibility across traditional search and AI-driven experiences.

• Monitor and enhance Core Web Vitals, site performance, accessibility, reliability, and overall web quality.

• Influence the technical direction of Calendly’s public web platform through architectural improvements, developer-experience enhancements, technical design, testing, code reviews, documentation, and mentorship.

⛳️ Requirements

• Over 7 years of professional software development experience, with substantial expertise in building and managing production web applications at scale.

• Strong command of modern JavaScript and TypeScript, contemporary frontend frameworks, HTML, and CSS.

• In-depth understanding of browser behavior, responsive design, accessibility, caching, and web performance.

• Experience in designing scalable frontend systems and reusable component architectures.

• Proven experience in integrating web applications with APIs, content management systems, analytics platforms, experimentation systems, and other services.

• Familiarity with technical SEO, including crawlability, indexing, metadata, structured data, site architecture, redirects, canonicalization, and performance.

• Awareness of Answer Engine Optimization (AEO) and AI-driven discovery.

• Experience in measuring and enhancing performance, accessibility, and quality of high-traffic web applications.

• Strong engineering principles emphasizing clean, maintainable code, rigorous testing, and incremental delivery.

• Excellent communication and collaboration skills; capability to independently drive technical solutions from concept to production.

• Authorized to work legally in the United States of America; Calendly does not participate in immigration sponsorship.

• Preferred: Experience with Payload CMS or another modern headless CMS.

• Preferred: Familiarity with Astro or similar modern web frameworks and static/server-rendered architectures.

• Preferred: Experience with internationalization and localization across extensive web properties.

• Preferred: Background in experimentation, conversion optimization, SEO, growth marketing, or content teams.

• Preferred: Experience with structured content or content APIs utilized by AI assistants or search systems.

• Preferred: Experience in modernizing or migrating large websites, CMS platforms, or frontend architectures.

🏝️ Benefits

• Equity awards for all full-time (30 hours/week) employees.

• Competitive benefits package.

• Occasional travel for company events, team collaboration, or offsite meetings.