Skill needed: Architecture, Node.js, Infrastructure, Cloud.
Employer: haddock
haddock is the first Point of Control (POC) SaaS solution designed for restaurants in Europe to manage every aspect of their business from one platform, enhancing control and operational efficiency.Our mission 👉 To inspire and empower millions of restaurateurs, boosting their business to the next level.Our vision 👉 To be the market leaders, innovate, and build long-term relationships with our clients to become their tech strategic partners in the success of their business.👀 Have you ever been in an Airbnb? haddock has been part of the program offered by the best accelerator in the world, Y Combinator. Companies like Airbnb or Twitch have grown with the teachings of Silicon Valley, and haddock is on the same rocket. In addition, investors such as JME, Decelera, Extension Fund, Wayra or Zone2Boost are backing us.About the role 💼We're looking for a backend engineer who wants to own core integrations, shape our infrastructure, and push the boundaries of reliability and scalability.This isn’t just another backend role — it’s your chance to lead a mission-critical area of our platform from day one.What You’ll Own 📝You’ll be the technical lead for our POS integrations — architecting, scaling, and operating the backend systems that power haddock’s growth. Your work will directly impact how restaurants connect their systems and manage their business. You’ll:Design and implement new integrations with external POS providers and servicesExtend and maintain existing connectors with an eye toward robustness and reuseDrive infrastructure improvements for scalability, observability, and securityCollaborate with the rest of the team on architecture and deploymentSet standards for integration quality, reliability, and performanceWhat We're Looking For 📚Product mindset – you empathize with users (e.g., restaurants), prioritize impactful work, and communicate clearly across teamsBackend focus – strong skills in server‑side development (TypeScript/Node, Python, Go, etc.) and database modelingInfrastructure expertise – experience managing services in cloud environments (GCP or AWS or Azure, Docker, CI/CD, monitoring/logging)Integration know‑how – comfortable with REST APIs, webhooks, and async patterns (message queues, retries)Ownership mentality – proactive, resourceful, and comfortable leading technical decisionsExperience – 2–5+ years building and operating backend systems at scaleLanguages – fluency in Spanish, and comfortable with English (projects and incidents are written in English, and we work with some international clients).Extras we love⚡️️Experience working with POS systems or in the restaurant/HORECA sector or accounting softwareFamiliar with domain‑driven design or microservicesBackground in incident response, SRE practices, or service-level objectivesWhy You'll Love It ⭐You’ll join a team that values curiosity, resilience, and growth. We’re building something big at haddock, and we want someone who’s ready to grow with us, take ownership, and play a pivotal role in our success.Ownership from day one – lead this mission-critical area as we expandFast‑growing impact – integrations are core to scaling haddock into new marketsCross‑functional influence – work with product, customer success, and engineering to shape flow and experienceCareer growth – shape team practices, mentorship opportunities, and future technical strategyCompetitive salary in the range of €35-50k gross/yearThis role is based in Barcelona, and we’d love to have you in the office at least two days per week to collaborate and connect with the team.Barrefit, LoveCycle, Lapso Studios, Trib3 and much more! With Urban Sports you can go to the gym whenever you want. Have you never tried yoga at 105 ºF? With haddock you can do it.Privileged location. Having a coffee in the morning with La Pedrera in the background is priceless. This role is based in Barcelona,and we’d love to have you in the office at least two days per week to collaborate and connect with the team.Our Process 🫱🏻🫲🏼We move fast (1 week!) while keeping it friendly and respectful:Intro call (~30 min) with a co-founder.Technical interviews (~2 hr) — integration and infra design deep dive + live backend/infrastructure task.