Location
madrid, comunidad de madrid, Spain
Posted
June 14, 2026
Job Description
One of the fastest-growing AI-native startups that collaborates with Joppy is looking for a Senior Backend/Full-Stack Engineer (primarily backend) to help build our conversational, agentic AI platform, integrations and APIs. You'll architect and scale production-grade systems supporting hiring, onboarding, and employee experiences in real enterprise environments, working with LLMs and autonomous agents as part of the stack.
What You'll Do:
- Build and scale production-grade backend systems
- Implement end-to-end features
- Make pragmatic technical decisions balancing innovation with reliability
- Collaborate with product and business stakeholders
- Ship reliable software that performs at scale
Technical Skills:
- Testing, logging, monitoring, performance optimization
- Data storage (SQL and NoSQL) and async message queues (Celery + RabbitMQ / Redis)
- High-throughput, low-l...