Data Scientist LLM

• Master's degree (or equivalent) in Computer Science, Statistics, Applied Mathematics, Artificial Intelligence, or a related discipline; 

• Mid-level: 3+ years / Senior: 5+ years of experience delivering production-ready data science solutions in a commercial or public environment, with a strong focus on NLP and LLMs; 

• Advanced proficiency in Python and experience writing production-ready code; 

• Thorough knowledge of LLMs and embeddings (such as GPT, BERT) and their applications; 

• Familiarity with deep learning frameworks such as TensorFlow or PyTorch; 

• Experience with NLP-specific tools and libraries (e.g., LangChain, HuggingFace, spaCy); 

• Proficient in working with containerization and orchestration tools (e.g., Docker, Helm, Kubernetes); 

• Strong understanding of CI/CD practices and version control systems (e.g., Git); 

• Demonstrable experience with data preprocessing and feature engineering for NLP tasks; 

• Knowledge of model optimization techniques and deployment strategies; 

• Excellent problem-solving skills and a constructive approach to challenges; 

• Strong communication skills and the ability to explain complex concepts to both technical and non-technical audiences; 

• Fluent in Dutch and English, both spoken and written, at a professional level; 

• Passion for continuous improvement, knowledge sharing, and staying ahead in the rapidly evolving field of data science. 

At Sopra Steria, we ensure that you can do your work with pleasure and in balance. Therefore, we offer an attractive and flexible package of employment terms:

• A permanent contract and a gross monthly salary between €4000 and €6000 based on full-time employment (40 hours per week);
• At Sopra Steria, we believe equal pay for equal work is important. Therefore, we determine your salary based on objective criteria such as experience, knowledge, competencies, and responsibilities. This allows us to ensure fair and transparent compensation that matches your background and the impact of your role.
• Holiday allowance of 8%;
• A profit-sharing scheme with a target payment of 8% of the gross (part-time) annual salary, depending on company results;
• A mobility scheme with a choice between an electric lease car or an alternative transport arrangement, suited to your situation;
• 27 vacation days, with the possibility to buy or sell non-statutory vacation days;
• Flexible hybrid working conditions: at home, at the office, or at the client, depending on the role and the possibilities within assignments;
• A home office package including a laptop, phone, and a monthly internet allowance;
• Plenty of opportunities for professional and personal development through training, certifications, knowledge sessions, and inspiring events;
• Various social activities with colleagues, from informal drinks to sporty and substantive events;
• Opportunities for tax-friendly repayment of your student debt;
• An extensive range of benefits via our cafeteria model, including a bicycle scheme, sports subscriptions, solar panels, and collective insurance;
• A pension scheme with an employer contribution and the possibility to realize voluntary additional pension accrual.

A bright future for everyone—that is what we are working towards at Sopra Steria. With more than 51,000 colleagues in nearly 30 countries, we are one of the largest providers of digital solutions in Europe. We believe that technology alone does not drive transformation. But that people form the core of change. That is why people are central to everything we do, and you can excel with us both individually and in a team.

The world is how we shape it. Let’s shape it together.

In this role you will: 

• Design, develop, and implement advanced machine learning models, focusing on LLMs and NLP applications; 

• Collaborate with multidisciplinary teams to solve complex business problems using a data-driven approach; 

• Conduct research into state-of-the-art LLM techniques and contribute to the development of new algorithms; 

• Prepare large textual datasets and engineer features for NLP tasks; 

• Optimize and implement machine learning models in production environments; 

• Mentor junior team members and provide technical support for NLP and LLM projects; 

• Stay up to date with the latest developments in LLMs and GenAI, and share insights with the team and clients; 

• Contribute to the continuous improvement of our data science processes and methodologies. 

We are looking for an innovative and experienced Data Scientist specializing in Large Language Models (LLMs) to strengthen our dynamic team in Nieuwegein. In this role, you will be at the forefront of developing and implementing advanced Natural Language Processing (NLP) solutions, bridging the gap between new technologies and concrete business needs. 
 
For a mid-level profile, we typically look for someone with 3+ years of relevant, practical experience; for a senior profile, 5+ years. Regardless of these numbers, we also invite excellent candidates with strong technical expertise, impactful projects, and demonstrable depth of knowledge to apply, regardless of the exact number of years of experience.