Senior Python developer

About the role

Our stack: Python 3.12 (asyncio, FastAPI, Django), Docker, PostgreSQL, GitLab, Apache Avro, Kubernetes, AWS, RabbitMQ, C/C++/Rust

We're Quantlane, a proprietary trading firm built for traders. Our goal is to create a best-in-class ecosystem that helps traders unlock their full potential. At the heart of it is our own trading platform — software that enables both manual and algorithmic trading.

👨‍💻 How we work

Our development team has 16 people. We work in an agile environment, develop iteratively, and take testing seriously. We currently have three specialized product sub-teams — Execution, Data, and Infrastructure — each focused on developing and running their core domain.

📊 Who we're looking for

This role is for our Execution Platform team, where we have three experienced Python developers. We tackle challenging backend problems here — performance and platform optimization, scalability, and system robustness.

🔥 Want to help build a platform that has a real impact on our traders' success? Come join us! 🚀

What your day-to-day will look like: -

Building backend applications in Python (asyncio, FastAPI, Django, RabbitMQ)

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Maintaining and shipping new features to our internal execution platform

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Evaluating and integrating third-party solutions

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Deploying applications to production (Kubernetes + Argo CD)

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Talking to traders and analysts — your internal customers — about the features they need

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Taking turns with the rest of the team on platform support

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Joining SCRUM ceremonies — but don't worry about pointless meetings where you wonder why you're there. For us, it's all about handling business priorities efficiently, not following SCRUM by the book.

What we offer: -

Snacks, 5 weeks of vacation, 5 sick days, and a Multisport card

- Brand new, modern offices in Karlín

- Hybrid setup — ideally 3 days on-site

- Regular sessions with a company therapist / coach

- English lessons with a native speaker

- Internal training and contributions toward technical conferences

A bit about you: -

You have backend development experience, ideally in Python or one of the compiled languages (C/C++/Rust)

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You know SW development best practices (Git, testing, KISS, DRY, YAGNI)

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You're into high-performance applications, but you're equally comfortable with standard Python backends

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You care about more than just writing code — you can give feedback to teammates, and you're open to taking ownership of a project

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You think about the architecture of what you're building, you're not afraid to share your opinion in team discussions, but you're also open to other people's perspectives