Applied Data Scientist III
33825_1764716252
Posted: 02/12/2025
- US$160000 - US$220000 per annum + RSUs
- San Francisco, California
- Permanent
Applied Data Scientist III - Global Ad Tech Business
Industry: Ad Technology / Machine Learning / Optimization
Location: Bay Area (Hybrid)
Salary: $160,000 - $220,000 + RSUs + Benefits
The Exciting Bits
The Company
Join a global ad tech business building one of the highest-scale ad exchanges in the world-processing tens of trillions of decisions every single day. This team is the algorithmic brain behind the exchange, powering auctions, pricing, fraud detection, and traffic shaping.
They're looking for a senior applied scientist who loves building original algorithms from scratch, thrives in fast experimentation cycles, and wants to work alongside world-class scientists and engineers.
Why this company stands out:
Operates at mind-blowing scale-true research-grade challenges in production.
A culture that supports both deep research and real-world deployment.
Opportunity to publish, innovate, and shape the future of programmatic advertising.
The Job
As the Applied Scientist III, your responsibilities will include:
Designing and building new algorithms for auctions, pricing, pacing, bid shaping, and traffic allocation.
Applying online learning, reinforcement learning, bandits, Bayesian modeling, and game theory to dynamic, adversarial environments.
Running ultra-fast, hours-level experimentation cycles to prove ideas in production.
Owning the entire model lifecycle-from research formulation through deployment and long-term system impact.
Partnering closely with engineering and product to ship models that directly influence real-time marketplace behavior.
Identifying unexplored problems and pioneering novel modeling approaches.
Working with massive-scale distributed systems such as Spark and big-data pipelines.
You
You'll be brilliant for this role if you have:
5.5-7 years of applied science or algorithmic research experience with production deployment.
A PhD in CS, Statistics, Math, OR, Physics-or a Master's with exceptional experience.
Deep theoretical grounding in optimization, learning theory, probability, RL, bandits, Bayesian methods, or game theory.
Strong coding experience in Python and scientific computing libraries (NumPy/SciPy, PyTorch/TensorFlow).
Experience working with large-scale data systems (Spark, distributed computing).
A researcher's mindset paired with a drive to ship production models.
Ad tech, marketplace, or dynamic pricing experience is great-but not required.
Apply Now
You can apply for this role of Applied Scientist III now by sending us your CV or by calling us today! Don't forget to register as a candidate too.
Christian Ramirez
Senior Consultant / Sphere Digital Recruitment
Sphere Digital Recruitment currently have a variety of opportunities across the digital ecosystem, so feel free to get in touch to see how we can help you. Please take a look at our website.
Sphere is an equal opportunities employer. We encourage applications regardless of race, ethnic origin, religious beliefs, age, disability, gender, sexual orientation, or any other protected status under applicable law.
Sphere Digital Recruitment currently have a variety of job opportunities across digital so feel free to get in touch with us to find out how we can help you. Please take a look at our website.
Sphere is an equal opportunities employer. We encourage applications regardless of ethnic origin, race, religious beliefs, age, disability, gender or sexual orientation, and any other protected status as required by applicable law.
If you require any adjustments or additional support during the recruitment process for any reason whatsoever, please let us know.