Senior Fullstack Developer with Ruby on Rails and Javascript - Freelance

Netguru; España; Presencial; EUR 50.000 - 70.000; Jornada completa

Descripción de la vacante

A leading technology company in Spain is looking for a Senior Fullstack Developer to work with Ember.js and Ruby on Rails. The role offers 100% remote work and involves fixing UI issues, improving UX, and collaborating on challenging products across various industries. Candidates should have extensive experience and strong English skills (C1). Join a dynamic team and contribute to exciting projects while developing your skills.

Servicios

100% remote, flexible work

Collaboration with experienced developers

Continuous development of skills

Dev-friendly processes

Formación

• Experience as a Full-stack Developer.
• Experience with Ember.js.
• Experience with Ruby on Rails.
• High seniority in both autonomous and team work.
• Knowledge of English (C1), spoken and written.
• Ability to work cross‑functionally with distributed teams in the CET timezone.

Responsabilidades

• Fix UI issues to match designs in Figma.
• Improve UX when resizing panels, clicking buttons and links, and navigating between different views.
• Create new components or reuse existing ones in other parts of the application.
• Consume and emit events, presenting data from back‑end to end-users.

Conocimientos

Full‑stack Developer

Ember.js

Ruby on Rails

English (C1)

Autonomous work

Team collaboration

Cross‑functional work

Descripción del empleo

Netguru is a trusted partner in digital commerce. The company helps leading brands modernize B2B solutions, marketplaces, and retail ecosystems. Since 2008, it has empowered businesses with cutting‑edge technology, AI‑powered personalization, and world‑class engineering and design teams. A certified B Corporation®, Netguru is trusted by major brands including IKEA, VW, OLX, Delivery Hero, Żabka, Wolt, Careem, and Vinted.

How freelancing works at Netguru?

As a Netguru freelancer, you can choose what works well for you. You decide when, where, and how you work on projects and tasks.

We match you with work that fits your skills. Plus, you have access to various opportunities across different industries and companies. That means you will not only gain more experience, but also develop various skills.

But there's more. Netguru freelancers can benefit from full‑time collaboration and really be a part of the team.

So, are you ready to make an impact? Join Netguru, and let's build beautiful software together.

Currently, we are looking for a (Senior) Fullstack Developer with RoR and Ember.js who possess excellent technical, and soft skills to join one of the ongoing projects.

Location: European Union + Ukraine
Start date: 05.01.2026

Length of the project: 6 months

Full‑time

Salary rate: up to 45 EUR/h (B2B contract)

Language requirement: English (C1)

Working hours: CET

Description: Both Ember.js and RoR are used, but at the moment the biggest gap in capacity is in the front‑end. Occasionally, and depending on the nature of the work stream, there may be a need to contribute to the back‑end as well. Nonetheless, the majority of the work will be with Ember.js.

Apply if you:

• have experience as a Full‑stack Developer.
• have experience with Ember.js
• have experience with Ruby on Rails.
• high seniority both in autonomous and team work.
• have knowledge of English (C1), spoken and written.
• Can work cross‑functionally with distributed teams in the CET timezone.

What are the responsibilities of a Fullstack Developer?

• fixing UI issues to match designs in Figma.
• improving UX when resizing panels, clicking buttons / links and navigating between different views.
• creating new components or reusing existing ones in other parts of the application.
• consuming / emitting events and presenting data from the back‑end to the end‑user.

In return, we offer:

• 100% remote, flexible work.
• work with an experienced team of developers and continuous development of your hard and soft skills.
• dev‑friendly processes such as Continuous Integration, Continuous Delivery, Code Review and bug bashes.
• long‑term collaboration on challenging products (FinTech, B2B software, E‑commerce and more).
  

What will happen next?

• We would like to know you better, so we will invite you for a meeting with our recruiter.
• If everything goes well, you will meet the client at the online interviews.

Looking for a full‑time job? Check out our Career Page and find out more about our open recruitment processes.

If you need any disability‑related adaptation at any step of the recruitment process – simply let the recruiter know! We'd be happy to help.