Описание
One of the companies we work with at Joppy is looking for a Backend Engineer to join the team. We're looking for an experienced backend engineer with depth. You'll come from a Backend Engineering background - Python, APIs, distributed systems - but what matters most is your motivation to build across layers and solve complex problems end-to-end. Backend is your anchor, but this is a high-impact engineering position for someone who enjoys working with multiple parts of the system rather than in a narrow specialization. You'll work closely with our core team to design, build, and scale the backend systems that power large-scale AI-driven information verification and representation.
Задачи
- Design and build backend services using Python (FastAPI)
- Architect data storage and retrieval systems using SQL and NoSQL technologies (Postgres, Redis, Cassandra, graph databases)
- Develop and maintain scalable pipelines (batch and streaming)
- Work with cloud infrastructure on AWS and containerized environments (Kubernetes)




- Experiment with emerging AI engineering tooling (coding agents, MCP ecosystems, etc.)
- Collaborate on system design and cross-functional architectural decisions
- Contribute to a culture of clean, pragmatic, high-quality engineering

Требования
- Strong background in: Backend Engineering (Python, APIs, distributed systems)
- Technical stack we commonly work with: Python FastAPI or similar frameworks AWS Kubernetes SQL and NoSQL databases (Postgres, Redis; Cassandra or graph databases are a plus)
- DevOps practices
- 4+ years of hands-on backend engineering experience, with real depth - you've gone deep, not wide and shallow
- Able to reason about and justify your technical decisions: pros, cons, why A over B
- Curious about how things work end-to-end, including the parts adjacent to your own - infrastructure, data, the systems your code runs on
- Curious about the AI ecosystem and modern developer tooling
- Comfortable in a fast-moving startup e

📌 Backend engineer python in AI (Barcelona)
🏢 Joppy
📍 Barcelona