Principal Data Scientist

Principal Data Scientist (Management Level)

Location: London (Hybrid) | Practice Area: Data & Analytics | Type: Permanent

The Role

We are seeking a Principal Data Scientist to join our growing UK Data & Analytics team.

You will take a leading role in designing and implementing advanced data science solutions across a range of industries, including financial services. This position offers the opportunity to build intelligent systems that drive measurable business and customer outcomes — while mentoring others and collaborating in a dynamic, multi-disciplinary environment.

What You’ll Do

• Lead the end-to-end delivery of data science initiatives, from proofs of concept and MVPs to production-scale deployments
• Design, develop, and prototype machine learning models to solve complex business problems using modern techniques and technologies
• Work closely with engineers, domain experts, and business stakeholders to translate analytical requirements into impactful solutions
• Guide and mentor data science teams, supporting technical development and solution design
• Act as a subject matter expert on ML architecture, model calibration, and productionisation

What We’re Looking For

• 10+ years of hands-on experience in data science or applied machine learning
• Proven track record of building and deploying data science solutions using Python and associated ML libraries
• Strong background in applied machine learning, model development, and data engineering
• Experience working with cloud platforms (Azure, AWS, or GCP) and big data tools such as Spark, Hive, or Redshift
• Demonstrated leadership in managing cross-functional teams and mentoring junior data scientists
• Excellent communication skills, with the ability to simplify complex technical concepts for non-technical audiences

Bonus Points For

• Participation in data science competitions (e.g., Kaggle)
• Experience implementing MLOps practices, including CI/CD, model monitoring, and DevOps integration
• Familiarity with NLP frameworks such as spaCy or Transformers
• MSc or PhD in a numerate discipline
• Industry experience in financial services, energy, or technology

Why Join

• Deliver high-impact data and technology solutions for leading organisations
• Collaborate in a flat, open, and entrepreneurial consulting culture
• Access continuous learning, professional certifications, and tailored training programs
• Contribute to projects shaping the future of digital transformation across industries

Our Benefits

We offer a comprehensive, people-first benefits package designed to support every aspect of your wellbeing:

Core Benefits: Competitive salary and bonus, pension scheme, health insurance, life insurance, and critical illness cover.

Wellbeing: Access to a range of mental health and wellbeing support services.

Family-Friendly: Enhanced maternity, adoption, and shared parental leave, alongside paid leave for sickness, pregnancy loss, fertility treatment, menopause, and bereavement.

Family Care: Complimentary backup care sessions for emergency childcare or eldercare.

Holiday Flexibility: Five weeks of annual leave, with options to buy or sell additional days.

Continuous Learning: Minimum 40 hours of annual training through workshops, certifications, and e-learning, plus a personal business coach from day one.

Healthcare Access: Online GP and virtual health consultations.

Extra Perks: Gym membership discounts, travel insurance, dining discounts, season ticket loans, Cycle to Work, and dental insurance.

Research indicates that men will apply to a role when they meet only 50–60% of the requirements, while women and other underrepresented groups often look for a 90–100% match. If this role excites you but you don’t check every box, we still encourage you to apply.