Lead Data Scientist

Job Title:

Principal Data Scientist
Salary:

£100,000 - £130,000 + bonus + benefits
Location:

London - 3 days p/w in-office
Tech:

Python, AWS, Spark, Dataiku, Airflow, SnowFlake, ML/NLP, Predictive Modelling
*Sponsorship is not on offer for this role

The Company:
Immersum are partnered with a high-growth data company that’s redefining how organisations engage with household and location-level intelligence. Their proprietary datasets and predictive modelling techniques power smarter decision-making across marketing, commercial, and customer functions. With a growing client base and investment in AI/ML innovation, this business is building out a world-class data science function to lead the next phase of its scale-up journey.

The Role Requirements:
This is a unique opportunity to join a small but fast paced company delivering AI and ML solutions at scale. You’ll lead a small but high-performing team, own the technical roadmap, and drive innovation across machine learning, data products, and modelling infrastructure.

What you’ll be doing:
Leading AI/ML strategy and building scalable, production-ready models
Mentoring and growing a strong data science team
Driving the use of predictive analytics in key product and commercial areas
Collaborating cross-functionally with engineering, product and senior leadership
Championing responsible, ethical use of data in line with GDPR and industry standards

What you’ll bring:
10+ years in data science or applied AI/ML roles, including senior leadership
Deep expertise in ML, NLP, predictive modelling, and advanced analytics
Strong programming ability in Python, with experience across cloud and data platforms (e.g. AWS, Spark, Dataiku)
Commercial mindset and strong stakeholder engagement skills
Passion for applying data science to real-world business challenges

Why Join:
High-impact leadership role with real strategic ownership
Shape the future of an ambitious, data-first scale-up
Hybrid working, flat structure, and a leadership team that values innovation
Be part of a business with unique proprietary datasets and real momentum