Senior Data Scientist - Experimentation

DigiTech Resourcing; United Kingdom; Hybrid; GBP 70,000 - 90,000; Full time

Job summary

A tech recruitment partner in the UK is seeking a highly experienced Senior Data Scientist for a 6-month contract. The role involves driving experimentation and insights, working autonomously, and collaborating with senior stakeholders. The candidate should possess over 6 years of experience, deep knowledge of experimentation, and proficiency in Python or R. Strong communication and problem-solving skills are essential. This opportunity offers a chance to deliver significant business impact quickly while mentoring junior team members.

Qualifications

• 6+ years of experience in Data Science or related analytical roles.
• Deep expertise in experimentation and real-world constraints.
• Proficient in Python or R, with statistical modelling experience.
• Strong knowledge of SQL for data manipulation.
• Exceptional communication skills for engaging stakeholders.

Responsibilities

• Lead the design, execution, and analysis of experiments.
• Mentor and support junior analysts/data scientists.
• Deliver meaningful business impact quickly.
• Work cross-functionally to ensure actionable data science outputs.

Skills

Data Science

Experimentation

Python

R

SQL

Communication

Problem-solving

Job description

Overview

Digitech are partner with a globally recognised tech brand, with unicorn status, who are seeking a highly experienced Senior Data Scientist to join on a 6 month contract and drive experimentation, insights, and strategic decision-making across the business.

This role requires someone who can hit the ground running, operate autonomously, and communicate effectively with senior stakeholders.

You will work across a variety of complex analytical problems, owning experimentation end-to-end—even when ideal conditions such as user randomisation or high statistical power are not present.

Responsibilities

• Lead the design, execution, and analysis of experiments, including A/B tests, difference-in-difference, and pre-/post-analysis.
• Low-power and constrained-randomisation experimentation.
• Partner closely with senior non-technical stakeholders to translate business needs into analytical solutions.
• Communicate complex concepts clearly, in person, in writing, and through well-structured analytical code.
• Mentor and support junior analysts/data scientists.
• Deliver meaningful business impact quickly by identifying opportunities, prioritising effectively, and executing with speed.
• Apply strong problem-solving and critical-thinking skills to uncover insights and guide decision-making.
• Work cross-functionally to ensure data science outputs are actionable, practical, and aligned with business priorities.

Required Skills

• 6+ years of experience in Data Science or related analytical roles.
• Deep expertise in experimentation, including advanced techniques and real-world constraints (e.g., no randomisation, low-power scenarios).
• Proficient in Python or R, with strong hands-on experience in statistical modelling and experimentation frameworks.
• Strong knowledge of SQL for data extraction and manipulation.
• Exceptional communication skills, with the ability to engage senior non-technical stakeholders.
• Proven ability to work autonomously, deliver impact quickly, and manage competing priorities.
• Strong analytical mindset with high attention to detail and a pragmatic approach.
• Demonstrated ability to think creatively and translate ambiguous business questions into clear analytical approaches.
• Experience coaching or leading junior team members.