Experienced Data Scientist - AdTech

About Voodoo

Founded in 2013, Voodoo is a tech company that creates mobile games and apps with a mission to entertain the world. Gathering 800 employees, 7 billion downloads, and over 200 million active users, Voodoo is the mobile publisher worldwide in terms of downloads after Google and Meta. Our portfolio includes chart-topping games like Mob Control and Block Jam, alongside popular apps such as BeReal and Wizz.

Team

Voodoo Ad-Network is an autonomous product of around 30 people that carries the ambitious mission of providing ad network services. One goal is to leverage Voodoo's first-party data to improve Voodoo's monetisation. Moreover, the product is growing through new ventures like opening up to external inventory, reaching the external-advertisers market and social-network monetisation through BeReal's recent acquisition. Thanks to promising results, our ambition is now to scale up the team to support growth.

The product is composed of top-tier software engineers, infrastructure engineers, data engineers, mobile engineers, and data scientists.

The Models team is a core element of the targeting performance. It leverages machine learning and a strong business understanding to directly impact the product's financial performance. It's composed of mostly senior Data Analysts, Analytics Engineers, Data Engineers and Data Scientists/ML Engineers who iterate together on finding and building the next performing iteration.

This position is hybrid and requires 2-3 days per week in the office based in Paris.

Our Stack

• Python Pandas Scikit learn LightGBM Pytorch Spark SQL Airflow DBT Athena Amazon Web Services Tableau

Role

• Improve existing models or propose new approaches to our current install rate and LTV estimation models

• Build and deploy scalable ML systems.

• Swiftly tackle incidents and strive to make the system robust

• Work closely with product managers and other engineers to ensure that incremental ML performance translates into significant business impact

• Discuss state-of-the-art ML topics with other data scientists, share ideas and challenge existing systems

• Gain an understanding of and engage in developing a variety of essential components to build an advertising network, including A/B testing systems, budget management, creative selection, performance monitoring, campaign optimization, app profiling, and user profiling

• Regularly examine the performance of the ad network to detect anomalies or propose new data-driven ideas.

Profile

• 3-5 years of experience building machine learning systems

• Prior experience working in dynamic, production-focused environments

• You're excited by the latest deep learning advancements but also familiar with the ins and outs of gradient boosting

• You like to deep-dive into complex topics to squeeze the last bit of performance

• You enjoy working in a team, learning new things, sharing knowledge

• Excellent communication in English is mandatory, French is a nice-to-have

• Strong achievements on Kaggle will be valued

Benefits

• Competitive salary

• Comprehensive relocation package (including visa support)

• Premium healthcare (SideCare) for you and your family 100% borne by Voodoo

• Swile Lunch voucher

• Gymlib (100% borne by Voodoo)

• Wellness activities in our Paris office

• Unlimited vacation policy

• Remote days

• Child daycare facilities (Les Petits Chaperons rouges)