Senior Frontend Engineer

Job Title: Senior Frontend Engineer

About the Role

Were looking for a Senior Frontend Engineer to play a pivotal role in our Marketplace web rewrite initiative. Youll lead the rebuild of our highest-traffic user journeys and establish the frontend architecture patterns and standards that will be used across the entire platform for years to come.

This is a senior-level role with Staff-level scope and impact. Were growing our engineering levels thoughtfully and we expect the right candidate to naturally progress into a Staff Engineer position as they expand their influence and ownership across teams.

Location: In-person at our NYC headquarters (4 days/week Monday-Thursday)
Compensation: 170000 - 210000 base salary equity (commensurate with experience)

What Youll Do

• Own major initiatives end-to-end starting with high-impact surfaces like Search Results (SRP) and Product Details (DLP) with clear success metrics around Core Web Vitals SEO and conversion.
• Lead technical design for complex projects (RFCs/design docs) drive alignment with Product and Design and make pragmatic high-quality tradeoffs.
• Define and champion reusable frontend patterns in a modern App Router codebase including routing data fetching caching component architecture error boundaries and analytics.
• Raise the overall engineering quality bar through code reviews standards and hands-on mentorship for a junior-leaning team.
• Improve developer velocity by enhancing tooling and practices (Playwright testing Datadog observability CI/CD hygiene etc.).
• Collaborate closely with backend engineers to shape efficient API contracts that unlock better frontend performance and faster iteration.

Tech Stack

• Frontend: (App Router) React TypeScript Tailwind CSS shadcn/ui
• Testing: Playwright
• Observability: Datadog
• Backend: Ruby on Rails on AWS (Postgres MongoDB)

Qualifications

Wed love to hear from you if you have:

• 7 years of experience building production-scale web applications (or equivalent senior-level impact).
• Deep expertise in React and modern frontend architecture particularly with (SSR App Router).
• Proven track record leading major rewrites or migrations of high-traffic web experiences with measurable improvements in Core Web Vitals SEO conversion and reliability.
• Strong technical judgment and comfort leading ambiguous high-impact projects from ideation through rollout and measurement.
• A high engineering bar disciplined testing observability-first mindset and passion for maintainable scalable code.
• Excellent communication and mentorship skills with the ability to elevate the entire team.

We encourage you to apply even if you dont meet every single requirement. We value potential strong problem-solving skills and cultural fit.

Growth Path

This role is designed for growth. Youll start by owning critical surfaces (SRP/DLP) and evolve into setting organization-wide frontend standards influencing adjacent teams and leading multiple high-impact initiatives as our rewrite program expands.

Required Skills:

Engineers