Job Description

One of the software development companies we collaborate with at Joppy is looking to hire a Staff Software Engineer for their offices in Barcelona. This is a 100% on-site position.
About the Role
We're hiring Staff Engineers (10+ years of experience) to join our core team in Barcelona.
You'll be solving complex, technical problems and shaping the product and architecture from day one. You should thrive in high-growth startup environments, be fluent in modern Python and async programming and know how to build scalable, event-driven systems. You care about fast, real-time systems and enjoy working at the intersection of performance, AI and great user experience.
If you love solving first-principles problems, navigating ambiguity and want to build a product people love you'll fit right in.
What You'll Work On
Scale a real-time, event-driven backend architecture where milliseconds matter
Design and implement low-latency APIs using FastAPI and Asyncio
Solve engineeri...

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