Senior Quant Developer (Python), Warsaw, hybrid
First seen by Alion on Nov 5, 2026.
We're looking for a Senior Quant Developer for a specialized fintech company that builds front-office software for commodities trade risk assessment. The company was founded in 2015 by alumni of London investment banks and hedge funds. The product is used by traders every day. You would join a developer-driven team that prefers writing new code to maintaining legacy systems. You'd design, build and test core front-office components, data pipelines and market data ingestion tools. This role suits an academically strong engineer who enjoys hard technical problems, and who likes working at a whiteboard with colleagues in the office.
Details
Location: Warsaw (Powiśle), hybrid, with most days in the office
Employment: Full-time
Level: Mid-Senior
What you'll do
Design and develop front-office components used by traders daily
Build and maintain data pipelines and ETL processes
Own market data ingestion: streaming, time-series and high-frequency trade data
Test your own work and contribute to the technical decisions of a small, specialized team
Requirements
5+ years of software engineering experience
Expert-level Python
Proven experience with streaming technologies such as Kafka and Redis
Degree in Computer Science, Mathematics, Physics or a related field
Strong knowledge of data structures and algorithms
Ability to work from the Warsaw office most days (fully remote is not possible)
Tech stack
Python, SQL, NoSQL, Kafka, Redis, ETL, Time Series, AWS / Azure
Nice to have
A PhD
Experience in financial markets or commodities trade risk
Cloud experience (AWS or Azure)
Olympiad achievements (Informatics or Mathematics)
A degree from the University of Warsaw (JSIM, CS, Math, Physics) or a background at Staszic / Matex
Interview process
Informal introduction: a casual chat with the founders
Technical assessment: a practical task to see how you code and solve problems
Team meeting: meet the people you'd be working with