Data Scientist

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Role: AI/ML and Data Science Developer

Job Type: Permanent

Number of hours: 40 hours per week – full time

Are you looking for an exciting opportunity as an AI/ML? Are you passionate about Data Science?

We have an exciting role for you - AI/ML and Data Science Developer

TCS is a purpose‑led transformation company, built on belief. We do not just help businesses to transform through technology. We support them in making a meaningful difference to the people and communities they serve - our clients include some of the biggest brands in the UK and worldwide. For you, it means more to make an impact that matters, through challenging projects which demand ambitious innovation and thought leadership.

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• Build strong relationships with a diverse range of stakeholders.
  
• Gain access to endless learning opportunities.
  
• Work closely with the range of teams within the business to bring products to life.
  

As a AI/ML and Data Science Developer, you are required to design, develop, and deploy AI/ML models and solutions, including LLMs and GenAI. You will also be responsible for the end‑to‑end design, development, and deployment of AI/ML models, as well as implementing advanced data science techniques to solve complex problems and drive innovation. In this role you will collaborate with stakeholders to understand business and technical requirements and translate them into scalable AI/ML and data‑driven solutions.

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• Design, develop, and deploy AI/ML models and solutions, including LLMs and GenAI.
  
• Perform feature engineering and selection to optimize model performance.
  
• Select and implement appropriate AI/ML algorithms, including supervised, unsupervised, and reinforcement learning models.
  
• Deploy models to production environments, ensuring robustness and scalability.
  
• Monitor model performance and define strategies for identifying drift; retrain or refine models as needed.
  
• Collaborate with cross‑functional teams to integrate AI/ML models with business applications and systems.
  
• Train, evaluate, and optimize models using machine learning and statistical techniques.
  
• Conduct extensive data exploration, analysis, and preprocessing to ensure data quality for AI/ML applications.
  
• Develop and apply data science methodologies to extract insights from large‑scale structured and unstructured datasets.
  
• Utilise predictive analytics, time series forecasting, and statistical models to drive business decision‑making.
  
• Stay updated on the latest advancements in AI/ML and data science technologies.
  
• Develop and maintain comprehensive documentation for AI/ML pipelines, data workflows, and analytical processes.
  

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• Good experience in AI/ML development and data science.
  
• Strong understanding of AI/ML algorithms and techniques, including LLMs, GenAI, and automated AI systems.
  
• Experience with machine learning frameworks (e.g., TensorFlow, PyTorch) and data science libraries (e.g., NumPy, pandas, scikit‑learn).
  
• Proficiency in Python, R, or other relevant programming languages.
  
• Proficiency in working with large datasets, data wrangling, and data preprocessing.
  
• Experience in data science, statistical modelling, and data analytics techniques.
  
• Experience with data analysis and visualization tools (e.g., Matplotlib, Seaborn, Tableau).
  
• Ability to work independently and lead projects from inception to deployment.
  
• Experience with big data technologies (e.g., Hadoop, Spark) and cloud platforms (e.g., AWS, GCP, Azure) is desirable.
  

TCS is consistently voted a Top Employer in the UK and globally. Our competitive salary packages feature pension, health care, life assurance, laptop, phone, access to extensive training resources and discounts within the larger Tata network.

Tata Consultancy Services UK&I is committed to meeting the accessibility needs of all individuals in accordance with the UK Equality Act 2010 and the UK Human Rights Act 1998.

We believe in building and sustaining a culture of equity and belonging where everyone can thrive. Our diversity and inclusion motto is ‘Inclusion without Exception’. Our continued commitment to Culture and Diversity is reflected across our workforce implemented through equitable workplace policies and processes.

You’ll find a welcoming culture and many internal volunteering and social networks to join (these are optional). Our diversity, inclusion and social activities include 12 employee networks such as gender diversity, LGBTQIA+ & Allies, mental health, disability & neurodiversity inclusion and many more, as well as health & wellness initiatives and sports events and we sponsor the London Marathon.

We welcome and embrace diversity in race, nationality, ethnicity, disability, neurodiversity, gender identity, age, physical ability, gender reassignment, sexual orientation. We are a disability inclusive employer and encourage disabled people to apply for this role.

If you are an applicant who needs any adjustments to the application process or interview, please contact us at with the subject line: “Adjustment Request” or call TCS London Office to request an adjustment. We welcome requests prior to you completing the application and at any stage of the recruitment process.

Due to a high volume of applications, we will be unable to contact each applicant individually on the status of their application. If you have not received a direct response within 30 days, then it should be deemed unsuccessful on this occasion.

Join us and do more of what matters. Apply online now.

Associate

Full-time

Information Technology

IT Services and IT Consulting

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