Remote AI-Driven Full-Stack Engineer for E‑commerce

Jumpseller; Porto; Hybrid; EUR 40,000 - 65,000; Full time

Job summary

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.

Qualifications

• 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.

Responsibilities

• 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.

Skills

Ruby backend

React frontend

AI/ML interest

Analytical thinking

Portuguese (native)

English (professional)

Team player

Communication

Education

Master's in Computer Science/Engineering

Job description

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.