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Senior Full Stack Developer - Freelancer

Barcelona, ES🌐 Remote💼 Full-time🗓 2026-07-14 → 2026-09-11

Core

Architecting scalable React frontends and robust Ruby on Rails backend services for a multi-brand e-commerce CMS.

Role type

Senior Full Stack Developer (Freelance)

Builds

Multi-brand e-commerce ecosystem, core CMS features, high-performance APIs, and back-office tools.

Domain

E-commerce, Content Management Systems

Deliverable

production ML models | product features

Required skills

Ruby on Rails (v5+), React, RESTful API architecture, Docker, GIT-based workflows

Preferred skills

Hotwire Native, ElasticSearch, Redis, Google Cloud Platform

Responsibilities

Leading technical evolution of the e-commerce ecosystem, architecting scalable frontends and backend services, developing core CMS features with supplier integrations, designing high-performance APIs and back-office tools, ensuring code quality through pull request reviews, collaborating with cross-functional teams to translate business requirements into code.

Seniority

Senior, hands-on IC

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