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Joppy

Mid/Senior Full Stack Product Engineer (45K€ - 55K€) · 💰 €40–55k/year

EU

October 4, 2026 at 9:23 AM

✨ AI summary

💰 €40–55k/year

Location

  • Greater Barcelona Metropolitan Area

Programming Languages

  • TypeScript

Frameworks

  • React
  • React Router
  • Fastify

Cloud Services

  • Google Cloud Platform

Databases

  • PostgreSQL
  • MongoDB

Experience Level

  • At least 3 years

We're looking for a proactive and driven Product Engineer for one of our clients to build and deliver impactful features that make a real difference for restaurant operations.


🎯 Responsibilities

  • Design, build, and maintain a full-stack platform and AI Agents
  • Focus on delivering outcomes and overcome challenges
  • Architect scalable solutions to support rapid growth
  • Contribute to process improvement, evolving from scrappy solutions to smarter approaches
  • Mentor team members and help shape the team culture
  • Share maintenance responsibilities such as bug fixing, monitoring, and dependency management within a rotating support squad


Example objectives in your first months might include:

  • Enhance automation so our AI agent handles more administrative work for customers
  • Enable effortless purchase orders for customers directly within the platform
  • Develop AI workflows to automate operational tasks for restaurants
  • Build dashboards and reporting features that help customers track their business health
  • Streamline internal operations with AI-powered tools for cross-team collaboration


🛠️ Requirements

  • At least 3 years of engineering experience working on SaaS applications in Agile environments
  • Proven ability to build products end to end, including discovery, infrastructure, backend, frontend, and testing
  • Familiarity with TypeScript, React, and Node
  • Experience designing and implementing architectures using services, databases, external APIs, caches, queues, and events
  • Experience working with Microservices or related service-oriented architectures
  • Hands-on experience developing with AI and strong judgment in applying AI effectively
  • Fluency in Spanish and comfortable communicating in English (documentation and projects are in English, day-to-day conversations are often in Spanish)


➕ Nice to have

  • Direct experience building AI workflows for production use


🤗 We offer

  • Competitive salary (€40–55k gross/year), with growth potential
  • Bright modern office in Barcelona (Poblenou) with hybrid work model (minimum two days per week onsite, remaining remote for focused work)
  • Access to a wide range of AI tools for experimentation
  • Subsidized Urban Sports Club membership
  • Additional benefits through Playflow for optimized spending of part of your salary


⚙️ Tech Stack

  • TypeScript, React, React Router
  • Fastify, PostgreSQL, MongoDB
  • Google Cloud Platform, Langfuse, PostHog
  • Various AI integrations
  • Primarily serverless architecture with a combination of microservices and a main service


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