Machine Learning Engineer, Advertising

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What you do

Our Advertising teams are home to ambitious product owners, data analysts/designers, software engineers and other data scientists, who all work together to maximize our advertising potential for customers and advertisers. You help deploy machine learning models such that they can deliver in the real‑time, high‑traffic context of Bol, where you employ your technical expertise to make the most out of these models, while adhering to business requirements.

You work with software engineers and data scientists from the advertising teams to build solid bridges between data and personalized ads for customers. This is where your expertise makes all the difference. How can we take a new model into production? How do we facilitate refinement thereafter? We encourage you to propose your own ideas for innovations. The focus is on:

• Enhancing bol as an advertising platform for customers and advertisers
• Displaying the right ad in the right place at the right time
• Automating recommendations for advertisers that want to spend more effectively
• Developing and supporting underlying software systems
• Identifying valuable new innovations, experiments, and advanced methods

Qualifications

Because you’re a genius in conceptualizing, designing, developing and implementing machine learning models on CPU and GPU, you have extensive experience with web development, databases, MLOps tooling, and low‑latency service development. You are excited about experimenting with Rust, Go, Java, or C++. You embrace a hypothesis‑driven approach, testing and validating models, and working with stakeholders across domains. Continuously learning and exploring new terrain is part of your daily routine.

3 Reasons Why This Is (Not) For You

• You’re not into tooling – FastAPI / Kubernetes / MLFlow is terra incognita
• You’re a soloist – you’ve never worked with software engineers and don’t look forward to the experience
• You don’t deviate from the path – you prefer staying on the beaten path, perhaps out of comfort
• You have a strong track record in data and bring 5+ years of engineering experience to the table, especially in data‑driven, personalized solutions
• You love lab settings – you enjoy experimenting, innovating, and getting colleagues on board for the ride
• You go from concept to realization – translating complex questions into scalable models and algorithms is your specialty

Where You’ll Work

You’ll land in the Advertising tech fleet, one of our engineering departments that focuses on the different advertising products. We develop innovations and technical tools to present advertisers with limitless opportunities to showcase their products/services on our platform. We zoom in on strategic topics, such as sponsored products and display advertising, as well as on audiences and the data we can make available to our advertisers.

Seniority level

• Mid‑Senior level

Employment type

• Full‑time

Job function

• Analyst, Information Technology, and Engineering
• Retail, Transportation, Logistics, Supply Chain and Storage, and IT Services and IT Consulting

We take pride in our B Corp certification and strive for continuous improvement every day. Our annual bonus is tied to sustainability goals, and we are committed to equality and equal opportunities for all.

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