Responsibilities

Engineers at haddock are action-oriented, curious, autonomous, and take full ownership of their work.

- Architect technical solutions
- Build backend and frontend code (80% backend, 20% frontend)
- Engineer AI workflows, balancing latency, cost and accuracy
- Do your own project management, rolling out your initiatives to customers
- Track users, measure interactions and extract conclusions
- Talk to customers to validate ideas and get feedback

Example Work

- Enabling Fina to match bank movements with invoices, finding gaps and reporting them to the suppliers via AI phone call.
- Enabling business data to tell the story of the restaurant to their owners, displaying them financial metrics and insights, and enabling AI agents to work on that data.
- Increasing adoption of inventories to 50% of customers, a crucial part of operations at a healthy restaurant business.
- Building MVPs for traceability, enabling groups of restaurants to comply with food health inspections, and evolving it based on feedback.





Requirements

- 3+ years of engineering experience working on SaaS applications in Agile environments.
- Product Engineering experience: end-to-end from ideation, infrastructure, backend, frontend, testing, etc.
- Experience setting up or working with infrastructure (using services, serverless functions, databases, external APIs, caches, queues, events, etc.).
- Very good use of AI tooling.
- Fluent in Spanish and comfortable in English.
- Previously built AI workflows for production is a plus.

Benefits

- Competitive salary (€40–55k gross/year), with increasing raises.
- Bright modern office in Barcelona, in Poblenou.
- Hybrid work with 2 days at the office.
- All AI tooling for experimentation.
- Subsidized Urban Sports Club membership.
- Benefits for spending part of your salary via Playflow.

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📌 Product Engineer (Senior Full Stack) (Barcelona)
🏢 haddock (YC W22)
📍 Barcelona