Senior Data Scientist: LLM & MLOps in Production

H & M Hennes & Mauritz Gbc AB; Stockholms kommun; On-site; SEK 900,000 - 1,300,000; Full time

Benefits offered by this job

25% staff discount

Pension and life insurance

Wellness benefit 4000kr/year

HIP program

Job summary

H&M Group is seeking a Senior Data Scientist to solve complex business and product problems using data and ML. You will own data science initiatives end-to-end, build and deploy models in production, and design LLM-powered tools with monitoring and continuous improvement.

Collaboration across product, engineering, and analytics will be essential for measurable impact. You’ll work with cross-functional teams, apply stats and ML methods, and ensure high-quality, scalable solutions.

Qualifications

• Bachelor's or Master's degree in Statistics, Engineering, Computer Science, or a related field.
• Strong theoretical and practical knowledge of statistics and machine learning.
• Proven experience developing and deploying ML models in cloud environments beyond notebook-based work.
• Hands-on experience building and deploying LLM-based applications, including fine-tuning, retrieval pipelines, and prompt engineering.
• Strong proficiency in Python and ML frameworks such as PyTorch, TensorFlow, LangChain, or similar.
• Practical experience with MLOps practices, CI/CD pipelines, and model monitoring, ideally in a cloud environment.

Responsibilities

• Own and contribute to data science initiatives end to end, from understanding problem statements and exploring data to building, deploying, and maintaining models in production.
• Design, deploy, and operate LLM-powered tools and workflows in production, with responsibility for evaluation, monitoring, and continuous improvement
• Apply statistical methods, machine learning, and advanced analytics to support product and business decisions.
• Develop, test, and improve models and data-driven solutions with a strong focus on quality, scalability, and long-term maintainability.
• Take responsibility for solutions after deployment, including monitoring, troubleshooting, and iterative improvements.
• Perform exploratory and ad hoc data analysis, and present insights in a clear and structured way.
• Communicate closely with stakeholders to translate business needs into analytical approaches and explain outcomes in an accessible manner.
• Contribute to technical standards, best practices, and knowledge sharing within the data science community.

Skills

Statistics

Machine learning

Python

SQL

Communication

Education

Bachelor or Master's degree

Tools

PyTorch

TensorFlow

LangChain

CI/CD

MLOps

Job description

H&M Group is seeking a Senior Data Scientist to solve complex business and product problems using data and ML. You will own data science initiatives end-to-end, build and deploy models in production, and design LLM-powered tools with monitoring and continuous improvement.

Collaboration across product, engineering, and analytics will be essential for measurable impact. You’ll work with cross-functional teams, apply stats and ML methods, and ensure high-quality, scalable solutions.