Senior Data Scientist, AI Platform — Hybrid + Equity

Praxy; Helsinki; Hybrid; EUR 90,000 - 150,000; Full time

Benefits offered by this job

Inclusive culture

Global impact

Wellbeing focus

Equity options

Hybrid workplace

Job summary

Smartly is seeking a Senior Data Scientist to join the AI Platform Team in Helsinki. You will own ML projects end-to-end, from data exploration to production monitoring, and work across image, video, audio, text, and structured data to power advertising experiences.

You will collaborate with data scientists, ML engineers, and software engineers to productionize AI/ML apps, while driving maintainability, observability, and scalability. This is a hybrid role based in Helsinki.

Qualifications

• 5+ years of experience in data science or applied machine learning.
• 2+ years of experience with cloud infrastructure (AWS or GCP).
• Strong foundation in linear algebra, statistics, and calculus.
• Fluent in Python; C++ or Java a plus.
• Hands-on experience with PyTorch or TensorFlow.
• Knowledge of MLOps: MLflow, Kubeflow.
• Experience in feature engineering, model design, evaluation, diagnostics, and monitoring.
• Excellent written and verbal communication in English.

Responsibilities

• Implement, build, and deploy scalable ML models for advertising experiences.
• Own projects end-to-end from problem framing to monitoring in production.
• Work with diverse datasets (image, video, audio, text, structured data).
• Analyze large-scale datasets to uncover insights and inform product strategy.
• Collaborate with data scientists, ML engineers, and software engineers to productionize AI/ML apps.
• Contribute to team planning, retrospectives, and process improvements.
• Communicate findings to both technical and non-technical stakeholders.

Skills

Python

Machine Learning

Cloud AWS/GCP

PyTorch/TensorFlow

MLOps

Data analysis

Communication

English

Education

MSc in relevant field

Tools

MLflow

Kubeflow

Job description

Smartly is seeking a Senior Data Scientist to join the AI Platform Team in Helsinki. You will own ML projects end-to-end, from data exploration to production monitoring, and work across image, video, audio, text, and structured data to power advertising experiences.

You will collaborate with data scientists, ML engineers, and software engineers to productionize AI/ML apps, while driving maintainability, observability, and scalability. This is a hybrid role based in Helsinki.