Software Engineer - Query Engines

Amsterdam, Netherlands

About the role

Polars

Polars is the next generation of DataFrames. We don’t take the easy route and build from the ground up, controlling every element allows us to create a superior solution. Our open-source implementation is one of the fastest growing data projects on GitHub and has over 30 thousand stars and 100 million downloads to date.

We believe data processing should be a seamless experience from working locally on your development machine to an enterprise production environment. There should be one framework to learn for data practitioners, removing the need for rewriting code when going to production.

How will you make an impact?

As a member of the compute team your task is to define the characteristics of our query engines (streaming, distributed, in-memory). Together with your team members you’ll define high impact areas and improve the performance, consistency and maintainability of our engines. You switch between designing and implementing our systems with a hands-on approach. You like to ship code to millions of users and like bringing in cutting edge ideas into practice.



  • Familiarity with query execution models (e.g., vectorized execution & pipelining).

  • Familiarity with query optimization techniques

  • Experience with a low level programming language, preferably Rust

  • Strong understanding of computer science fundamentals

  • Ability to work in a small with team with autonomy and ownership

Benefits

  • An important role in a high-growth startup allowing plenty of growth opportunities in diverse directions

  • Chance to work with and learn from a small strong technical team passionate about data processing and software engineering

  • Competitive salary

  • Stock option package

  • Flexible working hours

About Polars

Polars is an open-source, Rust-based DataFrame library and in-memory query engine designed for fast and efficient data manipulation. It provides a DataFrame API with multi-threaded, vectorized, and columnar processing, making it suitable for large-scale analytical workloads. The company, Polars BV, builds a managed compute platform to enable data scientists and engineers to run Polars at any scale without managing distributed infrastructure.

Other roles at Polars

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Job details

Location

Amsterdam, Netherlands

Company

NamePolars
IndustryAI Infrastructure
Team Size2

Funding

Total raised

$25M

Last stage

Series A

Investors

Accel
Bain Capital Ventures

Founders

Chiel Peters

Chiel Peters

Co-Founder

LinkedIn
Ritchie Vink

Ritchie Vink

CEO & Co-Founder

LinkedIn

What happens next.

No applications, no recruiter spam. Just the intro.

01

Confirm the fit

A few questions to make sure this role is the right shape for you. Two minutes.

02

I pitch you to the company

I write the intro, send it to the founder, and handle the back-and-forth.

03

A meeting lands on your calendar

If they’re a yes, I book the chat. You show up — that’s the whole job-hunt.