The goal is to make AI practical, controlled, and truly embedded in how modern organizations operate. To accelerate our growth, we're looking for a talented Software Engineer to join our Engineering team and help us build an innovative product that will make a real impact on how thousands of users work every day. As a Backend Engineer, you'll work on the core infrastructure that makes our AI platform fast, reliable, and scalable.

This is a role for someone who thrives at the intersection of backend engineering and applied AI, thinking about latency, reliability, and model behavior all at once.

LLM integration: integrating and tuning new LLMs into a production-grade backend, with a focus on security, guardrails, and evaluation (latency, response quality) Data ingestion & export: building robust pipelines and services to handle a variety of file formats reliably and at scale Context & token optimization: designing strategies to maximize LLM efficiency, manage context windows, and keep costs in check Infrastructure & observability: designing scalable APIs,



automating deployment pipelines, monitoring, and testing to keep the platform reliable and performant 5+ years of experience with Node.js + TypeScript stack ~ NestJS/React and PostgreSQL are a plus ~ Solid understanding of backend architecture, scalability, and security best practices ~ Experience with databases, authentication, and cloud platforms (AWS) ~ Familiar with CI/CD, Git workflows, and agile methodologies ~ Bonus: familiarity with other backend programming languages applied to AI (Python, Go...) Agile mindset focused on product and business value Balance between code quality and delivery speed Technical English required Health insurance provided by the employer Adaptable working hours Hybrid remote work Daily use of English through close collaboration with teams in the US and France Our office is situated in a lively innovation hub, offering access to local meetups, events, and a strong professional community.

📌 Remote Back End Software Engineer (Madrid)
🏢 Goodweek
📍 Madrid