Backend Engineer, AI Integrations — Madrid

Cacheflow; Madrid; Híbrido; EUR 70.000 - 100.000; Jornada completa

Descripción de la vacante

Vic.ai in Madrid, Spain, is seeking a Senior Backend Engineer to own the integration platform that connects our customers' ERP systems to Vic.ai and push results back at scale. We’ll build and operate backend services with TypeScript/Node.js, Elixir/Phoenix, and Python, deployed on AWS, focusing on reliability and performance for a high-scale AI product.

You’ll join a venture-backed, product-driven team and contribute to architecture, tooling, and faster onboarding for new clients, while

Formación

• Bachelor's or Master's degree in Computer Engineering, Computer Science, or a related field.
• 2+ years building and operating production backend systems, primarily in TypeScript/Node.js, Elixir/Phoenix, Python.
• Experience building on top of LLMs.
• Experience integrating with third-party APIs (REST, SOAP, OData, OAuth2, webhooks).
• Solid grasp of queue-based and distributed systems: idempotency, retries, dead-lettering, and backpressure.
• Proven experience taking systems from development to production and operating them using best practices.
• Strong understanding of performance monitoring, logging, observability, and operational reliability.

Responsabilidades

• Build and operate integrations moving data bidirectionally between ERP systems and Vic.ai.
• Develop backend services in TypeScript/Node.js (HTTP APIs, queue-based workers, PostgreSQL).
• Design integrations against third-party APIs (REST, SOAP, OData, OAuth2) with typed contracts.
• Make jobs idempotent and replay-safe, including retries, rate limiting, dead-lettering, and correlation/audit logging.
• Own services from development through production, including deployment on AWS, monitoring, and issue resolution within defined SLAs.
• Contribute to the AI-assisted tooling that speeds up customer onboarding.
• Support adjacent backend domains as needed (Public API and core services in Elixir/Phoenix, plus Python services).
• Contribute to architectural decisions and long-term platform scalability.
• Identify, troubleshoot, elevate, and resolve issues related to performance, accuracy, and system stability.

Conocimientos

TypeScript/Node.js

Elixir/Phoenix

Python

LLMs integration

API integrations (REST/SOAP/OData/OAuh

Distributed systems

AWS/Docker/Kubernetes

SQL databases

Educación

Bachelor’s or Master’s in CS/Engineering

Herramientas

RabbitMQ

Oban

BullMQ

PostgreSQL

Docker

Kubernetes

GitHub Actions CI/CD

Descripción del empleo

Vic.ai in Madrid, Spain, is seeking a Senior Backend Engineer to own the integration platform that connects our customers' ERP systems to Vic.ai and push results back at scale. We’ll build and operate backend services with TypeScript/Node.js, Elixir/Phoenix, and Python, deployed on AWS, focusing on reliability and performance for a high-scale AI product.

You’ll join a venture-backed, product-driven team and contribute to architecture, tooling, and faster onboarding for new clients, while