Lead Data Scientist

MCS Group are delighted to be working with an established AI and data science organisation delivering real-world machine learning systems across complex, high-impact environments. The team works on applied AI problems including large language models, computer vision, signal processing, and advanced analytics - building production systems rather than dashboards or proofs of concept. The Belfast office is growing and playing a key role in shaping the company's future technical capability.

Role Overview

This is a senior, hands on Lead Data Scientist role combining technical delivery, mentorship, and team leadership. You'll take ownership of complex ML programmes, guide technical direction, and support the development of a growing data science team while remaining deeply involved in building and deploying real world systems.

What You'll Need

• 8+ years' experience in data science, machine learning, or applied AI
• Strong track record delivering ML systems into production
• Experience mentoring or leading other data scientists (formal management not required)
• Practical experience with LLMs / GenAI
• Background in at least one of: computer vision, NLP, or statistical modelling

Whats in it for you

• Heavy focus on LLMs, GenAI, and real world AI systems
• Work across diverse problem spaces including signal data, computer vision, and large scale analytics
• Strong balance of hands on technical work and leadership
• Opportunity to help shape and grow a data science function in Belfast
• Meaningful, applied work - not dashboards or experimentation only projects

To speak in absolute confidence about this opportunity please contact Rachael Walker, IT Recruitment Manager at MCS Groupor click the apply button below.

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