Senior Next.js Full-Stack Engineer - Remote + Unlimited PTO

Ruby Labs Ltd; Turkey; Remote; TRY 350,000 - 520,000; Full time

Benefits offered by this job

Remote work environment

Unlimited PTO

Paid holidays

MacBook provided

Independent Contractor agreement

Job summary

Ruby Labs Ltd in CET timezone is seeking a disciplined Middle Next.js Developer to own features end-to-end for our D2C subscription product. You will work on a TypeScript monorepo with a Next.js App Router client, a Fastify + Payload CMS API on PostgreSQL, and Cloudflare edge workers.

You will own tasks from break-down to release, maintaining quality and observability. Expect maximum autonomy within a sprint, proactive risk communication, and architectural input directed to senior engineers.

Qualifications

• 2+ years commercial React experience, including 1+ year with Next.js (App Router, Server Components, route handlers, rendering and caching strategies) and solid TypeScript
• Node.js backend experience on a typed HTTP framework (Fastify, Nest, or Express) with PostgreSQL — REST API design, schema migrations, integrations over REST and webhooks
• Hands‑on with modern client stack: TanStack Query, Zustand, React Hook Form + Zod, Tailwind CSS, and a React component library such as HeroUI, MUI, or shadcn/ui
• Experience with a code‑first headless CMS on PostgreSQL (Payload, Strapi, Directus, or equivalent) — collections, access control, generated types, migrations
• Testing and delivery discipline: e2e tests (Cypress or Playwright) and unit/integration tests (Vitest or Jest), Git flow, code review, working with CI
• Daily use of AI development tools (Claude Code or equivalents), including configuring them for a project — context, instructions, rules, MCP/integrations — with full ownership of the quality, security, and correctness of generated code
• English — B1+

Responsibilities

• Build features across the Next.js client and the Fastify + Payload CMS backend according to product requirements
• Write code that follows the team's Feature-Sliced Design layering, naming, and import conventions
• Ship changes behind feature flags and A/B experiments, fully localized across every supported locale
• Integrate third-party providers — billing, email/CRM, analytics — over REST APIs and webhooks
• Cover functionality with unit, integration, and e2e tests at the level the team expects
• Run a thorough self-review before code review, and review teammates' code with the same rigour
• Fix bugs and perform root‑cause analysis for recurring issues
• Optimize page and endpoint performance — rendering and caching strategy, database queries, bundle size

Skills

React

Next.js

TypeScript

REST APIs

Web security basics

CI/CD

AI development tools

English (B1+)

Tools

TanStack Query

Zustand

React Hook Form

Zod

Tailwind CSS

HeroUI

MUI

shadcn/ui

Payload CMS

PostgreSQL

Job description

Ruby Labs Ltd in CET timezone is seeking a disciplined Middle Next.js Developer to own features end-to-end for our D2C subscription product. You will work on a TypeScript monorepo with a Next.js App Router client, a Fastify + Payload CMS API on PostgreSQL, and Cloudflare edge workers.

You will own tasks from break-down to release, maintaining quality and observability. Expect maximum autonomy within a sprint, proactive risk communication, and architectural input directed to senior engineers.