Senior Next.js Full-Stack Engineer - Remote

Ruby Labs Ltd; New York (NY); Remote; USD 110,000 - 170,000; Full time

Benefits offered by this job

Remote Work Environment

Unlimited PTO

Paid National Holidays

Company-provided MacBook

Flexible Independent Contractor / gig-

Job summary

Ruby Labs Ltd is seeking a disciplined Middle Next.js Developer to build features for a core D2C subscription product. You will own end-to-end tasks in a TypeScript monorepo, including Next.js App Router, Fastify + Payload CMS API on PostgreSQL, and edge Cloudflare Workers.

Expect high autonomy, thorough testing, and production-grade delivery from task breakdown to release. Collaborate in a layered Feature‑Sliced design, estimate risks, and push robust architectural decisions.

Qualifications

• 2+ years React experience with 1+ year Next.js (App Router, Server Components).
• Strong TypeScript and Node.js backend in typed HTTP frameworks.
• Experience with PostgreSQL, REST APIs, and webhooks.
• Familiarity with TanStack Query, Zustand, and modern client stack.
• Experience with a headless CMS on PostgreSQL (Payload, Strapi, Directus, etc.).
• Testing discipline: E2E and unit tests, Git flow, CI integration.

Responsibilities

• Build features across Next.js client and backend per product requirements.
• Follow Feature-Sliced Design, ensure proper imports and conventions.
• Ship behind feature flags and A/B experiments; locale-aware.
• Integrate billing, email/CRM, analytics via REST/webhooks.
• Write tests, perform self‑reviews, and debug root causes.
• Ensure security best practices and observability in the codebase.

Skills

2+ years React

1+ year Next.js

TypeScript

Node.js backend

PostgreSQL

REST API design

Web security basics

TanStack Query

Zustand

React Hook Form

Tailwind CSS

Payload CMS

CI / Git workflows

AI development tools

English B1+

Tools

Fastify

Nest / Express

PostgreSQL tooling

Payload CMS

CI pipelines

Job description

Ruby Labs Ltd is seeking a disciplined Middle Next.js Developer to build features for a core D2C subscription product. You will own end-to-end tasks in a TypeScript monorepo, including Next.js App Router, Fastify + Payload CMS API on PostgreSQL, and edge Cloudflare Workers.

Expect high autonomy, thorough testing, and production-grade delivery from task breakdown to release. Collaborate in a layered Feature‑Sliced design, estimate risks, and push robust architectural decisions.