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Urgent! Full Stack Developer (Hybrid/Remote) Job Opening In Barcelona – Now Hiring MarsBased

Full Stack Developer (Hybrid/Remote)



Job description

MarsBased is a

development agency

from Barcelona offering end‑to‑end web & mobile apps built with

Ruby on Rails

,

React

and

JavaScript

.

We believe in

remote work

,

clean code

, and

delivering quality over quantity

We’re looking for a

senior

full-stack engineer

to join our Martian team, with strong knowledge of

Node.js

and

React

.

You’ll be joining a small, senior, and highly-collaborative team that values

autonomy

,

quality

, and

transparency

.

If you love elegant code, solving complex problems, and being part of a kind and experienced remote team, this might be your next orbit.

Build and maintain modern, scalable web applications using Node.js, React, and Next.js.

Collaborate closely with clients and teammates in a friendly, remote-first environment.

Use AI-assisted coding tools to improve development speed and quality.

GENERAL SKILLS

Strong self-management skills for remote work.

Proactive and able to work independently on self-managed projects.

Experience using AI agents or AI code editors to assist in coding tasks.

Fluent in written and spoken Spanish.

Fluent in written and spoken English.

5+ years of production experience building Node.js and React applications.

~ Production experience with Next.js, the App Router, and Server Components is required.

~ Experience with React Router or Remix (nice to have).

~ Strong JavaScript and TypeScript knowledge, both frontend and backend.

~ Solid understanding of relational databases and SQL.

~ Production experience deploying and maintaining Node.js applications.

~ Familiar with Docker and containers in both development and production environments.

~ Experience with testing frameworks such as Jest or Cypress.

~ Ability to build scalable and maintainable software over time.

~ Strong writing and documentation skills, we value clarity in your code and solutions.

Work from home or from a coworking space.

Flexible working hours.

Transparency and quality-oriented culture.

We’re a boutique agency, not a factory.

You’ll be part of a senior team where your voice matters and your work has a real impact.

Join us and help us build software that lasts — from Mars, or anywhere you call home ❤️


Required Skill Profession

Other General



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