Sr Data Scientist II

Scibids Technology SAS; Paris; On-site; EUR 59,000 - 101,000; Full time

Benefits offered by this job

Bonus potential

Equity

Job summary

Scibids Technology SAS is seeking a Sr. Data Scientist II to shape and strengthen DV Scibids bidding algorithms in Paris.

You will drive automation, translate unaddressed business cases into scalable enhancements, and combine statistical rigor with practical execution to impact our platform. Ideal candidates have 4+ years in data science with Python/C++, strong automation instincts, and a track record of delivering production ML solutions within a DV-like advertising context.

Qualifications

• MS degree in applied mathematics or data science (statistics/ops research).
• 4+ years of professional data science experience with Python and C++.
• Passion for automation and data-driven decisions.

Responsibilities

• Manage projects end-to-end from PoC to production deployment and monitoring.
• Mentor junior developers, conduct code reviews and share best practices.
• Work with massive datasets (billions of impressions/month) and millions of variables.
• Solve non-routine analysis problems not covered by off-the-shelf ML solvers.
• Tackle scaling/engineering challenges as thousands of ML models run daily.
• Collaborate with commercial and customer success to identify new algorithms or improvements.
• Identify and automate repetitive processes, developing AI routines instead of relying on human heuristics.

Skills

Python

C++

Data science

SQL

Education

MS degree in applied mathematics or data science

Tools

Kubernetes

Docker

Github

Google Cloud Platform

Job description

About DV & Scibids

\"DV Scibids\" is a global leader in AI-powered digital campaign activation. Scibids' solutions empower global brands to effectively boost ad performance and outcomes while improving operational efficiency and reducing manual lift. DoubleVerify technology does not rely on digital identifiers such as cookies and can be activated across leading Demand‑Side Platforms such as The Trade Desk, DV360, and Xandr to mention a few. To learn more visit https://doubleverify.com/scibids-ai/. DV Scibids' AI Optimisation technology equips these trading desks with machine learning solutions which use real‑time performance data to discover the optimal amount to bid for each advertising opportunity, thus delivering the final advertisers significant lifts in performance and productivity. The technology developed by Scibids is rooted in a solid scientific and market expertise and now has a team of 30+ Data Scientists based in our Paris office, working alongside DV's global engineering and data science org.

About the Role

The mission of Scibids AI is to provide media buyers with fully automated buying strategies for display campaigns, leading to incomparable performances for a minimum of human work. As a Sr. Data Scientist II, you will help shape and strengthen the Scibids DoubleVerify bidding algorithms — the central intelligence behind our platform. You will drive the evolution of our automation framework, transforming unmet business cases into scalable product enhancements. This role blends rigorous statistical thinking with hands‑on implementation, demanding both intellectual precision and practical execution. This position will combine high development standards, a relentless curiosity, a strong understanding of DV's business priorities and the ambition for your work to become a real game changer!

Responsibilities

• Managing projects end-to-end, taking ownership from the initial proof‑of‑concept phase through to production deployment and monitoring.
• Mentoring junior developers, providing technical guidance, conducting code reviews, and sharing best practices to ensure high code quality.
• Working with massive datasets (billions of ad impressions/month) and millions of variables.
• Solving non‑routine analysis problems (not handled by off‑the‑shelf ML solvers).
• Solving challenging scaling/engineering problems as our system produces thousands of ML models per day.
• Working closely with the commercial and customer success teams to help identify business cases where a new algorithm is needed or existing ones need improvement.
• Identifying and automating any repetitive process taking place at Scibids, including cases where this means developing some AI routines replacing “human common sense.”

Minimum qualifications

• MS degree in applied mathematics or data science (e.g., statistics, probabilities, operations research, machine learning).
• 4+ years of professional experience in Data Science with Python/C++.
• Passion for automation and data‑driven decisions.

Preferred qualifications

• Proven professional experience in a SQL-like language.
• Experience deploying machine learning models into production environments.
• Previous experience leading technical projects or mentoring team members.

Technical stack

• Python
• SQL
• Kubernetes, Docker, Github
• Google Cloud Environment, App Engine Standard, Cloud SQL, Google Cloud Datastore

Other

• Contract type: full-time position (French “CDI”).
• 3 days per week in the office.
• Based in Paris (75008) – Champs‑Elysées.
• Preferred availability: ASAP.

Salary & Benefits

• The successful candidate’s base salary will be determined based on a number of non-discriminatory factors, including qualifications for the role, level, skills, experience, location, and internal equity considerations.
• The estimated salary range for this role based on the qualifications set forth in the job description is between [€59,000 - €101,000].
• This role may also be eligible for bonus or commission (as applicable), equity and benefits.

Company overview

DV provides the industry’s leading Media Effectiveness Platform. Utilizing trusted measurement data and dynamic AI optimization, DV maximizes campaign effectiveness and drives tangible business outcomes for advertisers wherever they run their digital media. DV powers performance for the world’s largest brands, platforms and publishers. We believe this is important work. Why? Because when an ad-supported ecosystem hums, it preserves a free internet for us all. We’re looking for the best and the brightest talent, those who stand for one another and meet challenges with a spirit of ingenuity and invention.