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 environment
* C1+ level in either English or Spanish (fluency in either is acceptable)
* Будет плюсом: Cassandra or graph databases are a plus; Search systems or information retrieval is a nice to have; Builders at heart: hackathons, side projects, open-source contributions, active GitHub are all highly appreciated Условия
* Competitive salary
* Stock options
* Hybrid model: 3 days per week onsite
* New office on Gran Via (Barcelona), with a full dedicated space.
* Adaptable benefits covering transport, meals, and health insurance. #J-18808-Ljbffr

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