Machine Learning Engineer

Want to Make Waves in Tech? GBT Solutions Is the Place to Be!🐝

About Us: GBT Solutions is a Portuguese technology company founded in 2018, part of the HFA Group established in 1995. With a focus on delivering cutting-edge solutions across various industries, we are committed to fostering a diverse and inclusive work environment and are proud to be recognized for our commitment to excellence and innovation.

Position: Machine Learning Engineer/Data Science

Location: Lisbon | Hybrid

What You’ll Do

• Design & Deploy: Build, train, and deploy machine learning models and AI solutions into production.
• Innovate: Fine-tune and extend Large Language Models (LLMs), working with both open-source and commercial models.
• Optimize: Implement Retrieval-Augmented Generation (RAG) techniques to improve model efficiency and accuracy.
• Analyze: Perform exploratory data analysis (EDA) and feature engineering to unlock better model performance.
• Build Generative AI: Develop advanced AI solutions for content creation, process automation, and innovation.
• Apply Traditional ML: Use decision trees, SVMs, neural networks, and other ML algorithms to solve diverse problems.
• Collaborate: Work closely with data engineers, product managers, and business stakeholders.
• Quality Assurance: Ensure high-quality AI solutions through rigorous testing, validation, and monitoring.
• Document & Share: Maintain clear technical documentation to support knowledge sharing and reproducibility.

About You

• Bachelor’s or Master’s degree in Computer Science, Data Science, Machine Learning, or a related field.
• 3+ years of experience in Machine Learning and AI development.
• Strong experience with Generative AI, including model training, fine-tuning, and deployment.
• Hands-on experience with open-source and commercial LLMs.
• Proficient in Python and frameworks such as PyTorch, TensorFlow, and Hugging Face.
• Solid understanding of Natural Language Processing (NLP) techniques.
• Familiar with traditional ML approaches (decision trees, SVMs, neural networks, etc.).
• Experience deploying ML solutions on cloud platforms (AWS, GCP, or Azure).
• Strong problem-solving skills, analytical mindset, and excellent communication abilities.
• Fluent in English (French is a plus).

Nice to Have

• Knowledge of Reinforcement Learning from Human Feedback (RLHF).
• Experience with prompt engineering.
• Understanding of ethical AI, fairness, and model interpretability.

Equal Opportunity: GBT Solutions is an equal opportunity employer and values diversity. We do not discriminate based on age, ethnicity, sexual orientation, gender, disability, or any other factor other than merit.