Senior Data Scientist

3 weeks ago


Sheffield, United Kingdom DigiTech Resourcing Full time

Senior Data Scientist - Experimentation/CausalContract Length: 6 monthsRate: £650pd (Inside iR35 if UK based)Location: Fully RemoteStart: ASAP – ability to deliver impact from Week 1 requiredDigitech 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:Quasi Experimental TechniquesA/B testsDifference-in-differencePre-/post-analysisLow-power and constrained-randomisation experimentationPartner 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.Working 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.


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