Senior Backend Software Engineer (Python) - Remote (Poland)

About this role

WELCOME TO OLX
We're building
marketplace sustainable ecosystems
that millions of people depend on every month - to buy and sell cars, find homes, land jobs, and trade secondhand goods. It's commerce that matters:
safe, smart,
and
environmentally responsible.
We do this with
courage
to innovate,
commitment
to outcomes,
collaboration
across 50+ nationalities and 7 markets, and a
customer-led
approach that puts real people first. Add a
desire to win
- and you get a culture that's ambitious, fast-moving, and built on trust.


Our brands - including AutoTrader, OLX, Otomoto, Property24, and more - are loved by millions. And we're backed by Prosus, one of the world's largest tech investors.


Join OLX And See How Far You Can Go.
We design, build, and run the internal data platforms that keep the company moving. Our systems power the metrics, experiments, and tools that every team uses to make decisions.


Here are some of the practical projects we drive:


Tracking ecosystem:
we handle the flow of tracking data from millions of users across many countries. This data is the backbone of the company’s main metrics and helps everyone make informed decisions.


Change Data Capture service
: we built our own CDC system to capture and replicate database changes in near real-time. It keeps data fresh and consistent wherever it’s needed.


Experimentation platform
: we run the in-house A/B testing and feature flag system. It supports 40+ experiments every month, helping teams test ideas and improve the product.


Console
: we maintain the internal self-service platform that brings together UI and backend tools in one place, so employees can easily access and manage data products and internal systems.


We’re an experienced team that takes ownership from design to release. We keep quality high but stay pragmatic: we help each other out, share knowledge openly, and raise issues early to keep thi...