Senior Frontend Engineer — Headless Shopify Expert

Mammoth Brands Inc.; New York (NY); On-site; USD 170,000 - 183,000; Full time

Benefits offered by this job

Medical, dental, vision coverage

Equity in Mammoth Brands

Flexible time off

L&D stipend

Sabbatical after 5 years (4 weeks)

Parental leave: 20 weeks

Team events and free products

Job summary

Mammoth Brands is seeking a senior Software Engineer to join the Lume storefront team. You will own moderately complex areas of the headless Shopify architecture, drive technical direction, and deliver end-to-end solutions on a small, high-leverage team.

You will work closely with Product, Growth, Retention, Creative, and Analytics, shaping storefront performance, subscription flows, loyalty, experimentation, and integrations. This role reports to the Lume Head of Technology.

Qualifications

• Experience building and operating production e-commerce applications in a live environment.
• Deep, hands-on experience with Headless Shopify architecture (Storefront API, Remix data loading, routing, caching).
• Experience integrating third-party SaaS via APIs and webhooks; robust data reconciliation and retry handling.

Responsibilities

• Lead projects end to end for storefront initiatives, breaking down work and delivering solutions.
• Maintain a high quality bar with secure, tested, maintainable code and strong documentation.
• Drive technical decisions in a complex domain and translate business needs into technical outcomes.

Skills

Headless Shopify

React Router

Remix

Shopify Hydrogen

APIs & Webhooks

Testing

Observability

Production e-commerce

Communication

Tools

Shopify

Remix

React

GraphQL

Job description

Mammoth Brands is seeking a senior Software Engineer to join the Lume storefront team. You will own moderately complex areas of the headless Shopify architecture, drive technical direction, and deliver end-to-end solutions on a small, high-leverage team.

You will work closely with Product, Growth, Retention, Creative, and Analytics, shaping storefront performance, subscription flows, loyalty, experimentation, and integrations. This role reports to the Lume Head of Technology.