Senior Data Scientist, Associate Director, Digital Innovations

Deloitte (UK); Greater London; Hybrid; GBP 90,000 - 120,000; Full time

Job summary

Deloitte in London is seeking an Associate Director Data Scientist within our Tax Digital Innovation team to lead the design and delivery of advanced analytics, machine learning and Generative AI solutions that modernise tax operations, unlock data-driven insights and respond to a fast-changing digital landscape.

The role blends hands-on data science with stakeholder engagement, technical leadership and delivery from experimentation through to adoption, with a strong emphasis on responsible AI,

Qualifications

• Experience leading Data Science and AI initiatives from concept to production and business adoption.
• Strong stakeholder management skills, with the ability to translate complex technical concepts into business outcomes.
• Proven experience mentoring and providing technical leadership to Data Scientists and AI practitioners.

Responsibilities

• Lead the design and delivery of data science, analytics and AI solutions that support digital innovation across Tax and Legal
• Translate complex client and business challenges into data-driven products, proof of concepts and scalable production solutions
• Oversee the processing, cleansing and validation of data used for analysis, modelling and automation
• Apply advanced statistical modelling, machine learning, deep learning and Generative AI techniques to classify, predict and generate insight from tax and legal data
• Take ownership of models from initial experimentation through to deployment, monitoring, maintenance and continuous improvement
• Champion model performance, interpretability, responsible AI, governance and auditability across delivery work
• Clearly and confidently articulate the value, benefits and risks of analytics and AI projects to clients and senior stakeholders
• Work closely with Tax and Legal SMEs, engineers and product teams to develop innovative digital propositions and proofs of concept
• Mentor and guide data science colleagues, sharing knowledge and helping to raise the technical quality of the team
• Drive automation and optimisation of business workflows, helping clients improve efficiency, control and decision-making

Skills

Data science leadership

Stakeholder management

Mentoring data scientists

Statistical modelling

Python

Azure ML

Responsible AI

Agile delivery

RAG / knowledge graphs

Education

Postgraduate qualification in Data Science or related discipline

Tools

Azure Machine Learning

Azure AI Foundry

Python

Job description

Deloitte’s Tax Digital Innovation team brings together tax, legal, technology, data and AI expertise to create market-leading digital solutions. As part of a multi-disciplinary team, you’ll help shape and scale services that modernise tax operations, unlock data-driven insights and respond to a fast-changing digital landscape.

As an Associate Director Data Scientist in our growing Data & AI team, you’ll lead the design and delivery of advanced analytics, machine learning and Generative AI solutions, turning complex business and tax challenges into scalable, production-ready products and services. The role combines hands‑on data science with stakeholder engagement, technical leadership and delivery from experimentation through to adoption and measurable client impact.

This role suits someone passionate about digital innovation, applied AI and solving complex, high‑value problems with data science. You’ll thrive in a collaborative environment, staying close to emerging AI research while focusing on responsible delivery, robust engineering and practical business outcomes.

Connect to your career at Deloitte

Deloitte drives progress. Using our vast range of expertise, we help our clients' become leaders wherever they choose to compete. To do this, we invest in outstanding people. We build teams of future thinkers, with diverse talents and backgrounds, and empower them all to reach for and achieve more.

What brings us all together at Deloitte?It’show we approach the thousands of decisions we make everyday. How we behave, our beliefs and our attitudes. In other words: our values. Whatever we do, wherever we are in the world, welead the way,serve with integrity, take care of each other ,fosterinclusion, andcollaborate for measurable impact. These five shared values lead every decision we make and action we take, guiding us to deliver impact how and where it mattersmost .

Connect to your opportunity

The team has grown rapidly over the last three years in both size and breadth of services, and we are looking for an Associate Director Data Scientist to help shape the next phase of growth, lead high-impact delivery and develop market-leading digital propositions.

As part of this role your key responsibilities will include:

• Lead the design and delivery of data science, analytics and AI solutions that support digital innovation across Tax and Legal
• Translate complex client and business challenges into data-driven products, proof of concepts and scalable production solutions
• Oversee the processing, cleansing and validation of data used for analysis, modelling and automation
• Apply advanced statistical modelling, machine learning, deep learning and Generative AI techniques to classify, predict and generate insight from tax and legal data
• Take ownership of models from initial experimentation through to deployment, monitoring, maintenance and continuous improvement
• Champion model performance, interpretability, responsible AI, governance and auditability across delivery work
• Clearly and confidently articulate the value, benefits and risks of analytics and AI projects to clients and senior stakeholders
• Work closely with Tax and Legal SMEs, engineers and product teams to develop innovative digital propositions and proofs of concept
• Mentor and guide data science colleagues, sharing knowledge and helping to raise the technical quality of the team
• Drive automation and optimisation of business workflows, helping clients improve efficiency, control and decision-making

Connect to your skills and professional experience

• Experience leading Data Science and AI initiatives from concept to production and business adoption.
• Strong stakeholder management skills, with the ability to translate complex technical concepts into business outcomes.
• Proven experience mentoring and providing technical leadership to Data Scientists and AI practitioners.
• Strong understanding of statistical modelling, machine learning, GenAI and model evaluation.
• Proficiency in Python and modern Data Science frameworks.
• Experience with Azure AI services, including Azure Machine Learning and Azure AI Foundry.
• Strong understanding of Responsible AI, model governance and interpretability.
• Experience working with structured and unstructured data in Agile delivery environments.
• Ability to translate emerging technologies and R&D into practical business solutions.
• Experience shaping Data & AI strategy, roadmaps and technical standards.
• Experience building reusable AI assets, frameworks or products.
• Strong understanding of ML/LLMOps, CI/CD, model monitoring and production deployment.
• Experience with agentic AI, RAG and knowledge-based systems.
• Experience operating within regulated or risk-controlled environments.
• Exposure to data engineering and modern data platforms.
• Relevant postgraduate qualification (MSc, PhD) or equivalent in Data Science, AI or related discipline.

Connect to your business – Tax

Innovation and tax consultancy may not seem to go together, but that’s exactly what you’ll find at Deloitte. We’re constantly seeking the new and working together to push the limits of what’s possible. Discover a new kind of tax career that you can make your own.

Tax

Our comprehensive range of services encompasses everything from the completion of tax returns (corporation tax self‑assessment) to complex consultancy assignments and strategic tax planning. We advise on corporate and general tax, international M&A, stamp tax, cross‑border transfer pricing, reorganisations and reconstructions, and competent authority negotiations.

Personal independence

Regulation and controls are standard practice in our industry and Deloitte is no exception. These controls provide important legal protection for both you and the firm. We are subject to a number of audit regulations, one of which requires that certain colleagues abide by specific personal independence constraints (e.g., in relation to any financial interests and employment relationships). This can mean that you and your "Immediate Family Members" are not permitted to hold certain financial interests (shares, funds, bonds etc.) with audit clients of the firm, and also prohibitions on certain employment relationships (e.g., you are not permitted to hold a secondary employment role with SEC audit clients of the firm whilst being employed by the firm). The recruitment team will provide further detail as you progress through the recruitment process or you can contact the Independence team upon request.

Connect with your colleagues

“I thoroughly enjoy the opportunities and the people I engage with: they enrich my day immensely. Every week throws up new challenges, new risks to assess, new plans to develop." - Montine, Tax

“At Deloittewe work with some of the world’s biggest and most prestigious businesses, because we’re recognised for our expertise and insight. Every challenge, issue or opportunity has tax considerations - and so we give insightful and proactive advice to help clients navigate risk, complexity, and business-critical decisions." - Oliver, Tax

Our hybrid working policy

You’ll be based in London with hybrid working.

At Deloitte we understand the importance of balancing your career alongside your home life. That’s why we’ll support you to work flexibly through our hybrid working policy. Depending on the requirements of your role, you’ll have the opportunity to work in your local office, virtual collaboration spaces, client sites and remotely. You’ll get the chance to meet face to face when needed, while you collaborate and learn from colleagues, share your experiences, and build the relationships that will fuel your career and prioritise your wellbeing. Please check with your recruiter for the specific working requirements that may apply for your role.

Our commitment to you

Making an impact is more than just what we do: it’s why we’re here. So we work hard to create an environment where you can experience a purpose you believe in, the freedom to be you, and the capacity to go further than ever before.

We want you. The true you. Your own strengths, perspective and personality. So we’re nurturing a culture where everyone belongs, feels supported and heard, and is empowered to make a valuable, personal contribution. You can be sure we’ll take your wellbeing seriously, too. Because it’s only when you’re comfortable and at your best that you can make the kind of impact you, and we, live for.

Your expertise is our capability, so we’ll make sure it never stops growing. Whether it’s from the complex work you do, or the people you collaborate with, you’ll learn every day. Through world-class development, you’ll gain invaluable technical and personal skills. Whatever your level, you’ll learn how to lead.

Connect to your next step

A career at Deloitte is an opportunity to develop in any direction you choose. Join us and you’ll experience a purpose you can believe in and an impact you can see. You’ll be free to bring your true self to work every day. And you’ll never stop growing, whatever your level.

Discover more reasons to connect with us, our people and purpose-driven culture at deloitte.co.uk/careers