FullStack Developer

Jumpseller; Porto; Híbrido; EUR 40 000 - 65 000; Tempo integral

Resumo da oferta

Jumpseller in Porto, Portugal is seeking an analytical, product-driven Full-Stack Engineer to join our team. We build a scalable e-commerce platform used by merchants worldwide, with Ruby on the backend and React on the frontend.

You will write clean, modular code, design features from specs, run tests, and collaborate with Customer Support to resolve issues. Take ownership of your work in a fast-growing startup with an international team.

Qualificações

• Master’s in Computer Science, Computer Engineering, or related quantitative field.
• Strong backend with Ruby and frontend with React.
• Hands-on AI/ML focus with scalable ecommerce experience.
• Portuguese native and English professional proficiency.
• Based in Porto with hybrid/remote flexibility.

Responsabilidades

• Work in an informal environment for a global market.
• Write clean, modular, scalable code handling millions of records.
• Design new features from ground-up from given specs.
• Build automated tests and maintain current test sets.
• Collaborate with Customer Support to resolve issues and improve service.
• Take ownership, autonomy and responsibility of your work.

Conhecimentos

Ruby backend

React frontend

AI/ML interest

Analytical thinking

Portuguese (native)

English (professional)

Team player

Communication

Formação académica

Master's in Computer Science/Engineering

Descrição da oferta de emprego

Jumpseller is a SaaS solution for small business to manage their online business. We focus on making e-commerce easier for everyone, so businesses can focus on what they do best: building and selling their products. Today, merchants use the Jumpseller platform to manage every aspect of their online business — from products to orders to customers, selling with an online store, on mobile, on social networks and through different e-commerce channels.

At Jumpseller you will find a startup environment in which your contributions matter and you are enabled to grow professionally. We have 2 offices, one in Porto, Portugal, and another in Santiago, Chile, and our working culture is international. We allwork fully remote.

The role

We are looking for an analytical, product-driven Full-Stack Engineer to join our team. We look for skilled & dedicated people who share our passion for building a product that millions of people use.

You will

• Work in an informal environment, for a global market;
• Strive to write clean, modular, flawless and scalable code responsible to handle millions of records;
• Design new features from ground-up, from a given set of specs;
• Build automated tests for your code while help improving and maintaining our current test set;
• Be in contactwith our Customer Support Team, resolving technical issues and understand how to improve our service;
• Take responsibility, autonomy and ownership of your work.

The Recruitment Process

• We will review all the CVs & Cover Letters received;
• First interviews - 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 aCase Study. Not more than 4 to 6 invitations will be sent;
• Finally, a last interview - lasting 45 to 60 minutes - to review the resolution Case Study & focus deeper on your main professional project/achievement;
• Offer letter.

Requirements

• Master’s in Computer Science, Computer Engineering, or a related quantitative field;
• Strong proficiency in backend development using Ruby, coupled with frontend experience in React;
• Hands-on experience or academic focus in AI/Machine Learning, with an interest in building scalable e-commerce solutions;
• Analytical / Maths / Strong Tech Profile. Analytical / engineer minded profile;
• Native proficiency in Portuguese and professional working fluency in English (both written and verbal);
• Based in Porto, Portugal. We have a strong preference for candidates in the northern region (hybrid/remote flexibility);
• Team Player;
• AI-native mindset: Uses AI as a core part of the development process, not just as a coding assistant, leveraging multiple parallel agents to build features faster, solve complex problems, and dramatically multiply individual engineering productivity;
• Being communicative, having initiative and being transparent;
• Generally interested in developing e-commerce platforms.