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Senior NodeJS Backend Engineer (Context Engineering)

XAnge · Barcelona, Catalonia, Spain

Imported listingfull-timeabout 1 month ago

About The Role

Join our fast-growing AI startup focused on revolutionizing the insurance industry. As a Senior NodeJS Backend Engineer, you'll have the opportunity to shape the future of insurance by building AI agents that streamline back-office work for brokers. You'll work closely with the founders, have the freedom to decide how things get built, and make a real impact on the company and product.

  • Design, build, and maintain scalable backend systems for AI agent orchestration and real-time data processing.
  • Take full ownership in building new AI agents that take over backoffice work on behalf of the broker.
  • Partner with AI/ML teams to deploy models into production, optimizing APIs and microservices for speed, security, and simplicity.

### **Technical Skills:**

  • 5+ years building backend systems in **NodeJS & Typescript**.
  • **Expertise in cloud-native architectures** (AWS/Azure) & Docker.
  • **Strong experience with RAG** creation & management, **context** engineering and **agentic memory creation**
  • **Strong RESTful API** design experience.
  • **Proficiency with relational** (PostgreSQL) and distributed systems.
  • **Experience in Kubernetes & Infrastructure and infrastructure-as-code** (Terraform) is a plus.
  • **Experience with AI/ML pipelines** (model deployment, MLOps) is a **strong plus**.
  • **Familiarity building with LLMs / agentic workflows would be a plus.**

### **Cultural Fit:**

  • You thrive in a high-performance team that moves fast and appreciates data.
  • You’re hands-on: You do not stop until 100% of the task is delivered
  • You embody “there’s always a solution”. No task is too ambiguous.

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