Sr. Data Scientist
Apply Job ID 2567 Date posted 08/01/2025When the world throws technology challenges at us, we eat them up. And then we ask for more. Welcome to life on the technology team. Here, you'll work on our scalable, evolving platform, face tremendous software challenges, and work on projects for Fortune 100 clients. You'll be part of a fiercely collaborative technology team charged with creating digital solutions that are transforming the way employers and job seekers connect. Developing next-generation applications and products for some of the most recognized brands in the world. And actively supporting our diverse suite of best-in-class technologies. All this in an environment that constantly challenges you to push beyond boundaries and enhance your expertise-with the support of a global team of industry experts. Sound like a fit for your talent and passion?
What does a Sr. Data Scientist do?
We run hundreds of thousands of campaigns generating millions of clicks each month. The Data Science team for advertising has expertise in optimization, regression, classification, and NLP principles to develop world class strategies for performance advertising that yield the most important results for our customers: hiring the best employees.
Requirements:
- Deep understanding of statistical and machine learning models (logistic regression, decision trees, SVMs, etc.) and clustering and classification techniques
- Proven experience building models and placing models into production
- Experience in optimization problems, and solving those problems at scale
- Well versed in statistical programming languages such as R, Python
- Familiarity with relational databases such as Postgres and Amazon Redshift, and accessing data via SQL
- Degree in a technical field such as computer science, artificial intelligence, engineering
- Graduate work in machine learning a plus, or relevant work experience
- Experience in "Ad Tech" data science principles a huge plus
- Data driven leader, ready to provide technical direction to a team from Day 1
- Knows and loves the startup world - quick thinking and acting with minimal/no supervision
- Self-driven, independent, creative and eager to learn new skills
- Ability to work effectively with incomplete information
- Great communication skills
- Embraces the remote nature of the future of work
Locations
Join us in one of our four locations in the heart of Europe
Customer care centres are in four vibrant cities, spanning three countries, in the very heart of Central Eastern Europe! Find out a little more about each one.
Brno, Czechia
Brno is the second largest city of the Czech Republic and is popular with students and young people due to its excellent universities, culture, and nightlife. While it retains excellent transport links with Vienna and Prague it is regarded as one of the most liveable cities in Europe and boasts a quality of life and affordability that makes it a destination of choice for many people seeking an adventure in the heart of Europe.
Katowice, Poland
Katowice is the largest city in the historical Silesia region of Poland. It’s also one of the greenest, boosting an abundance of forests and parks for rest and recreation. A journey to European capitals such as Berlin and Budapest can take just a few hours and is one of the best-connected locations in Poland thanks to high-speed rail.
Bratislava, Slovakia
Bratislava is the dynamic capital of Slovakia and less than an hour from Vienna. It is surrounded by vineyards and the countryside provides perfect opportunities to explore nature. The historical old town is known for its lively bars and cafes. Local residents enjoy year-round cultural and social events, great international cuisine and all the buzz of a capital city.
Košice, Slovakia
Košice is the economic and cultural centre of eastern Slovakia and is home to several universities and boasts an abundance of museums, galleries, and theatres. Its thriving historical city centre is lined with boutiques, cafes, and restaurants. Košice is close to the mountains and is home to the second largest urban forest in central Europe for rest and recreation.