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honei
Southern Europe

Fullstack Engineer – Intern

Barcelona, Spain
2026-03-14

Role Description

**Fullstack Engineer – Intern** honei connects payments, cash management, and data so restaurant groups can operate with full control at every location. Integrated payments. Automated closings. Zero discrepancies. Instant reconciliation. Real-time visibility. Every payment also generates customer insights so teams know how to engage with each guest. No forms. No apps. It reflects what customers actually do — not just the 5% who sign up for loyalty programs, but the full 100%. No opinions. No guesswork. Because the data comes from the payment, not from a form. More than 300 restaurant brands in Spain already operate with honei, including Grupo Azotea, Grupo Arzábal, Familia La Ancha, Comess Group, and Pastelería Mallorca. **What you'll do** * Build **internal tools** to improve workflows across engineering, product, and operations. * Develop **fullstack applications** using **Node.js, Angular, and AWS** . * Design and implement **AI-powered processes and automations** to enhance productivity. * Contribute to **backend services and APIs** in a cloud-native architecture. * Participate in **technical discussions, code reviews, and documentation** . * Write **clean, maintainable, and scalable code** following best engineering practices. * Help monitor, troubleshoot, and improve the reliability of internal systems. **What we're looking for** * Currently studying **Computer Science, Software Engineering, or a related field** . * Interest in **fullstack development, backend systems, and AI tools** . * Familiarity with **JavaScript / TypeScript** and modern web development. * Curiosity about **automation, internal tools, and emerging technologies** . * Strong problem-solving skills and willingness to learn. **What we offer** * Experience working on **real products used in production** . * Exposure to **fintech infrastructure, payments, and AI-powered tools** . * Working on a **fast-paced startup** . * Mentorship from experienced engineers. * Hybrid and flexible model of work * Small stipend available depending on the internship agreement. * The opportunity to **own projects and see their impact quickly** . **Interested?** If you want to dive into a fast-growing startup and gain real experience building internal tools, AI-driven processes, and production systems, apply through the LinkedIn listing and attach your CV.

Fullstack Engineer – Intern

honei

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