Principal ML Engineer - Real-Time AdTech, 4.5-Day Week

Adikteev; France; Hybrid; EUR 130,000 - 150,000; Full time

Benefits offered by this job

Base salary

Quarterly bonus

Longevity bonus

4.5 days work week

Remote-friendly policy

Mental health support

Team events

Parental leave

Job summary

Adikteev, a leading AdTech company, is seeking a Senior ML Engineer to join the Machine Learning team in France. You will own the ML stack from research to production, building scalable models for CTR/CR, VTA, and auction-win probability across display and video inventory.

You will optimize real-time inference, lead MLOps, and mentor senior engineers while partnering with analytics to define ML KPIs. The role requires 8+ years in ML engineering, hands-on adtech experience, and strong software

Qualifications

• 8+ years of ML engineering experience.
• 3+ years building and owning production ML systems at scale.
• Hands-on adtech experience – RTB/DSP, mobile attribution, or real-time bidding.
• Strong command of the modern ML stack: Python, PyTorch or TensorFlow, scikit-learn, MLflow or Weights & Biases, Spark or Flink.
• Experience with real-time serving infrastructure: Triton, TorchServe, Ray Serve, or custom gRPC services.
• Solid software engineering fundamentals and production-grade code.
• Track record of delivering value incrementally with small, frequent increments.
• Clear, concise communicator who translates model performance into business impact.

Responsibilities

• Provide technical leadership and set direction for ML initiatives.
• Design and train predictive models for CTR, CR, VTA, bid shading, and auction-win probability.
• Scale ML platform with feature stores, training pipelines, model versioning, and A/B experiments.
• Drive sub-10ms inference at high QPS with optimized serving and latency-aware architecture.
• Own end-to-end ML workflows from data ingestion to monitoring; manage retraining triggers.
• Translate business objectives into technical strategies and drive cross-functional work.

Skills

ML engineering

Adtech experience

Communication

Production systems

Software engineering

Tools

Python

PyTorch

TensorFlow

scikit-learn

MLflow

Weights & Biases

Spark

Flink

Triton

TorchServe

Ray Serve

Job description

Adikteev, a leading AdTech company, is seeking a Senior ML Engineer to join the Machine Learning team in France. You will own the ML stack from research to production, building scalable models for CTR/CR, VTA, and auction-win probability across display and video inventory.

You will optimize real-time inference, lead MLOps, and mentor senior engineers while partnering with analytics to define ML KPIs. The role requires 8+ years in ML engineering, hands-on adtech experience, and strong software