Staff Data Scientist (AdTech Expert) (f/m/d) at adjoe

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• 🏢 adjoe has 15 jobs here, 15 with visa sponsorship see all
• 🛂 Visa: EU Blue Card. Minimum salary: €50,700 a year guide
• 💡 No salary shown. Ask adjoe if it is above the minimum.

Updated 2026-11-05, from our data and official sources.

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About the role

Responsibilities:
- Lead design and delivery of advanced targeting and relevance models (conversion, user quality, LTV) for real-time bidding.
- Research and implement policy optimization approaches (Bayesian methods, reinforcement learning, meta-learning) to improve bidding and allocation KPIs.
- Architect scalable model training and serving pipelines using distributed compute (Spark, Ray) and ensure rigorous A/B testing and rollout strategies.
- Mentor and upskill engineers and scientists; establish best practices for reproducibility, code quality and experiment design.
- Drive cross-functional collaboration to align ML solutions with product, monetization and privacy constraints.

Requirements:
- 10+ years of experience in machine learning with strong focus on ad tech, bidding algorithms or LTV/prediction systems.
- Deep expertise in modern ML (deep learning, Bayesian methods, RL, meta-learning) and production deployment at scale.
- Practical experience with distributed data processing (Spark, Ray), experimentation platforms and model serving infrastructure.
- Strong software engineering skills in Python, ability to mentor teams and communicate technical trade-offs to stakeholders.
- Track record of shipping impactful ML systems that improve business KPIs in fast-moving production environments.

Responsibilities

Architect and refine relevance models and bidding policies to maximize business KPIs and user engagement. Mentor team members and implement meta-learning frameworks and rigorous A/B testing to optimize ad performance.

Requirements

Requires over 7 years of professional experience with deep machine learning models specifically within the ad tech industry. Must be proficient in distributed data processing tools like Spark or Ray and have a strong background in bidding or LTV prediction algorithms.

Key skills

• Deep Machine Learning — not in any other listing on The Stack
• Ad Tech — in 2 other listings on The Stack
• Bidding Algorithms — in 1 other listing on The Stack
• LTV Prediction — in 1 other listing on The Stack
• AWS Athena — in 5 other listings on The Stack
• Spark — in 54 other listings on The Stack
• Ray — in 7 other listings on The Stack
• Distributed Data Processing — in 6 other listings on The Stack
• Bayesian Methods
• Reinforcement Learning
• Meta-Learning
• A/B Testing
• Software Engineering Best Practices
• Python
• GDCN
• Targeting Models

On The Stack (as of 2026-11-05)

• adjoe has 14 other listings on The Stack, 14 of them marked as offering visa sponsorship.
• 166 visa-sponsored jobs in Germany on The Stack, posted in the last 60 days.
• 68 visa-sponsored data scientist jobs in Europe on The Stack, posted in the last 60 days.

Frequently asked questions about adjoe

Is this Staff Data Scientist (AdTech Expert) (f/m/d) role still open?

It was posted on 2026-04-27. Listings more than 30 days old may no longer be active, so check adjoe's site before applying.

Does adjoe offer visa sponsorship?

This listing is marked as offering visa sponsorship. Eligibility rules are set by the employer, so check the details on adjoe's site.

Where is this role located?

The listing gives the location as Hamburg, Germany. It is marked remote.

What skills does this role ask for?

The listing names: Deep Machine Learning, Ad Tech, Bidding Algorithms, LTV Prediction, AWS Athena, Spark, Ray, Distributed Data Processing, Bayesian Methods, Reinforcement Learning, Meta-Learning, A/B Testing, Software Engineering Best Practices, Python, GDCN, Targeting Models.