We are seeking a highly skilled Senior Data Scientist with a strong background in Machine Learning and Large Language Models (LLM) to join our growing team.

Work at Exadel – Who We Are

We don’t just follow trends – we help define them. For 25+ years, Exadel has transformed global enterprises. Now, we’re leading the charge in AI-driven solutions that scale with impact. And it’s our people who make it happen – driven, collaborative, and always learning.

About Our Customer

America’s un-carrier delivers an advanced 4G LTE and transformative nationwide 5G network offering reliable connectivity. The brand operates in parts of Europe, but the U.S. is its largest market. The un-carrier’s customers benefit from its unmatched combination of value and quality and unrivaled drive for disruption, creating competition and innovation in wireless and beyond.

Requirements

5+ years of hands-on experience in Data Science with a focus on Machine Learning
Proficiency in LLM applications, including fine-tuning and optimizing models
Strong background working with AI technologies such as OpenAI and earlier versions of GPT
Familiarity with working in large-scale organizations and understanding complex systems and data pipelines
Expertise in improving the accuracy of LLM and driving innovations in language model performance
Strong analytical skills and ability to work with large datasets to derive meaningful insights
Ability to communicate complex technical concepts to non-technical stakeholders
Availability to work until 7 PM CET

English level

Upper-Intermediate

Responsibilities

Apply advanced Machine Learning techniques to design and develop LLM-based applications and enhance performance
Utilize AI technologies such as OpenAI and earlier versions of GPT to improve the accuracy and efficiency of language models
Work with AI solutions to test LLM accuracy, ensuring high-quality model outputs
Evaluate model quality by measuring the percentage of correct responses (accuracy) and identifying areas for improvement
Automate the testing process with a focus on achieving 80% accuracy in model predictions
Collaborate with cross-functional teams to implement innovative solutions and solve complex problems using LLM applications
Conduct research and continuous optimization of LLM models to enhance their overall performance
Work closely with stakeholders to identify business needs and develop data-driven solutions that add value to the organization
Stay current with the latest advancements in AI and Machine Learning technologies, contributing to ongoing improvements and optimizations

Advantages of Working with Exadel

Exadel is a global company, and benefits can vary depending on your location and contract type. Your recruiter will provide specific information about the benefits available to you.