Full Stack Developer - Remote Aug 2025

Jumpseller is an e-commerce platform for fast-growing businesses. We focus on making online commerce easier so that companies can concentrate on what they do best: selling their products. Today, merchants use our platform to manage every aspect of their online business—from products and orders to shipping and customers—selling through an online store, chat, mobile, integrated marketplaces, and other sales channels. Although our company has been around for over 10 years, you’ll find a startup-like structure here, where your ideas and contributions truly matter, and there’s extensive room for career growth.

Our team is made up of a very diverse group of people from different countries and backgrounds, making us a multicultural company. Although we are a remote-first company, we have two offices: one in Santiago, Chile, and another in Porto, Portugal.

The role

We are looking for a Full Stack Developer to join our growing team. We look for skilled & dedicated people who share our passion for building a product that millions of people use.

This is a full-remote position open to candidates across Portugal.

You will

• Work in an informal environment, for a global market;

• Strive to write clean, modular, flawless and scalable code responsible for handling millions of records;

• Design new features from the ground-up, from a given set of specs;

• Build automated tests for your code while helping improve and maintain our current test set;

• Be in contact with our Customer Support Team, resolving technical issues and understand how to improve our service;

• Take responsibility, autonomy and ownership of your work.

Your Day

Some projects and activities that we have been working on to give you a sense of what you’ll be doing day-to-day.

• Work along a team of developers, designers and product owners to build a Multi-location Inventory;

• Help complete one of our recurrent Meta Security Assessments;

• Create an Import / Export tool, in CSV, to quickly manage stock;

• Implement a bar code scan in React Native for our Mobile App;

• Work closely with our Design Team and set up the infrastructure for our UI Design System;

• Spend a day working directly with our client-based and Support Team, triaging and fixing production issues;

• Model in UML a new database structure for our upcoming Gift Cards feature.

The Recruitment Process

• We will review all the CVs & Cover Letters received;

• First interviews in August - lasting 30 minutes. This is an introductory meeting with our People Department, so that you get to know Jumpseller and present yourself;

• Top candidates will be invited to participate in a Case Study, which will be done at their own pace and should not take over 4 hours. Not more than 4 to 6 invitations will be sent. This should happen around August / September.

• Finally, a last interview - lasting 45 to 60 minutes - to review the resolution Case Study & focus deeper on your main professional project/achievement; This should happen in September.

• We expect to send you an offer by September/October.

All candidates will be notified by us once the process is concluded. Those on the last interview stage can request brief feedback about their application.

You are

• A bachelor/master in Informatics (or related);

• Proven professional experience in OO programming and web development;

• Experienced in Ruby or Ruby and Rails (the right candidate will be considered without this experience)

• Experienced in React or React Native

• Attentive to details, delivering quality code which is maintainable, efficient and reliable;

• Experienced in MySQL, or other relational databases;

• Familiar with automated testing tools;

• Used to work in JSON/XML/CSV formats and have no issues with HTML/CSS;

• Familiar with AI coding tools (e.g. GitHub Copilot, ChatGPT, Claude, etc.) to enhance productivity and code quality.

• Good in English communication and teamwork.