Full-Stack Engineer – Headless Commerce

Jobtailor; San Francisco (CA); On-site; USD 150,000 - 210,000; Full time

Job summary

Jobtailor in San Francisco, CA is seeking a frontend engineer focused on React and TypeScript to build and maintain Hydrogen templates and CMS-driven modules. You will leverage AI coding tools daily and integrate third‑party SDKs to accelerate delivery.

You will ensure accessibility and performance, participate in feature flag rollouts, and collaborate with Marketing/Ops for rapid content iteration. A strong track record of production Deploys is expected.

Qualifications

• Proficient in React and TypeScript with production experience.
• Experience building CMS-driven templates and components; accessibility-first approach.

Responsibilities

• Build and maintain Hydrogen page templates and CMS-driven modules.
• Implement A/B test variants and feature-flag rollouts (Statsig).
• Maintain accessibility (WCAG AA) and Core Web Vitals on PRs.
• Integrate third-party SDKs (Klaviyo, Refersion/Impact, Yotpo).
• Collaborate with Marketing/Ops for rapid content iteration and post-cutover monitoring.
• Triage and fix bugs across the Hydrogen storefront.

Skills

React fluency

TypeScript fluency

AI coding tools experience

HTML/CSS knowledge

Git workflow proficiency

A/B testing

Accessibility WCAG AA

Core Web Vitals optimization

Tools

Claude Code

Cursor

Copilot

Statsig

Klaviyo

Refersion

Impact

Yotpo

Contentful

Job description

• Page & Module Implementation


• Build and maintain Hydrogen page templates, CMS-driven modules, design system components


• Implement A/B test variants and feature-flagged rollouts (Statsig)


• Maintain test coverage, accessibility (WCAG AA), and Core Web Vitals on every PR


• Vendor SDK Integration


• Integrate third-party SDKs (Klaviyo, Refersion / Impact, Yotpo) per architecture set by Senior FS


• Maintain attribution parity in dual-tracking phases (M5-M8)


• Build CMS-driven content modules (Contentful authoring)


• AI-Augmented Velocity


• Use Claude Code / Cursor / Copilot as primary development tools every day


• Ship 2-3× the volume of a non-AI-augmented engineer at comparable quality


• Be the team's reference point for AI-workflow patterns and tooling improvements


• Operational Excellence


• Triage and fix bugs across the Hydrogen storefront


• Partner with Marketing and Ops on rapid content iteration


• Contribute to post-cutover monitoring and incident response

Requirements

• React + TypeScript fluency


• Demonstrated daily use of AI coding tools (Claude Code, Cursor, Copilot) — please bring concrete examples to interview


• Working knowledge of HTML, CSS, accessibility (WCAG) basics


• Comfortable with Git workflows, code review, and shipping to production


• At least one production deploy in the last 12 months.

Core Competencies

Demonstrates expertise in React and TypeScript for building and maintaining CMS-driven modules and page templates, while ensuring accessibility and performance standards are met. Proficient in integrating third-party SDKs and utilizing AI coding tools to enhance development efficiency.

Highest-signal resume keywords

• React Fluency


• TypeScript Fluency


• AI Coding Tools Experience
  
• HTML/CSS Knowledge


• Git Workflow Proficiency

Hard Skills

• React


• TypeScript


• HTML


• CSS


• A/B Testing


• Accessibility (WCAG AA)


• Core Web Vitals


• Vendor SDK Integration


• Contentful Authoring


• Bug Triage and Fixing

Soft Skills

• Collaboration


• Problem-Solving


• Rapid Content Iteration

Industry Keywords

• CMS


• Attribution Parity


• Operational Excellence


• Post-Cutover Monitoring
  
• Incident Response

Tools & Technologies

• Claude Code


• Cursor


• Copilot


• Statsig


• Klaviyo


• Refersion


• Impact


• Yotpo