25 of 25 Permanent Principal Data Scientist Jobs in the South East

Principal Data Scientist - Optimisation Luton/Hybrid When it comes to innovation and achievement there are few organisations with a better track record. Join us and you’ll be able to play a big part in the success of our highly successful, fast-paced business that opens … over 90 million passengers a year, we employ over 14,000 people. Its big-scale stuff and we’re still growing. JOB PURPOSE The Principal Data Scientist role is pivotal in transforming the company into a data-driven organization, responsible for supporting the implementation of the … vision for the company's data science capabilities and ensuring the alignment of data-related projects with easyJet’s overall objectives. This role is focused specifically on operational use cases – such as network planning, crew optimisation, maintenance, and disruption management – and the data science solutions delivered are More ❯

Principal Data Scientist – Financial Services London (Hybrid) Up to £150,000 per annum + bonus & benefits We are seeking a Principal Data Scientist with strong financial services expertise to lead high-impact projects at one of the world’s leading management consultancies. Based in … London, you’ll work with global clients to solve complex problems using advanced analytics, machine learning, and Generative AI. Key Responsibilities: Lead data science initiatives across banking, asset management, and insurance engagements Architect and deliver end-to-end ML/AI solutions for strategic client challenges Provide thought leadership … on the application of GenAI in financial services Mentor junior data scientists and contribute to capability development Collaborate with cross-functional teams, including consultants, engineers, and domain experts Required Experience: 7+ years of data science experience, with significant exposure to financial services Proven track record delivering ML/ More ❯

Principal Data Scientist – Financial Services London (Hybrid) Up to £150,000 per annum + bonus & benefits We are seeking a Principal Data Scientist with strong financial services expertise to lead high-impact projects at one of the world’s leading management consultancies. Based in … London, you’ll work with global clients to solve complex problems using advanced analytics, machine learning, and Generative AI. Key Responsibilities: Lead data science initiatives across banking, asset management, and insurance engagements Architect and deliver end-to-end ML/AI solutions for strategic client challenges Provide thought leadership … on the application of GenAI in financial services Mentor junior data scientists and contribute to capability development Collaborate with cross-functional teams, including consultants, engineers, and domain experts Required Experience: 7+ years of data science experience, with significant exposure to financial services Proven track record delivering ML/ More ❯

Principal Data Scientist London - Hybrid (3 days a week) Up to £125,000 + benefits This is a great opportunity for a Principal Data Scientist to join an exciting marketing consultancy - in an 80% hands-on, 20% technical leadership/management role. THE ROLE … on advanced projects across GenAI and NLP Work closely with an Engineering team, whilst remaining full stack in your projects Report into Head of Data Science Driving commercial value closely with senior stakeholders Have a chance to upskill and mentor/manage, within a strong team of 8 Skills … And Experience Strong Data Science/Statistical fundamental knowledge is required Experience across some of recommenders, forecasting, pricing, churn, marketing etc. - this is a role for a generalist! Exposure to some of GenAI, NLP, Computer Vision is a bonus MSc in a STEM subject (Maths, Physics, Data Science More ❯

Principal Data Scientist London - Hybrid (3 days a week) Up to £125,000 + benefits This is a great opportunity for a Principal Data Scientist to join an exciting marketing consultancy - in an 80% hands-on, 20% technical leadership/management role. THE ROLE … on advanced projects across GenAI and NLP Work closely with an Engineering team, whilst remaining full stack in your projects Report into Head of Data Science Driving commercial value closely with senior stakeholders Have a chance to upskill and mentor/manage, within a strong team of 8 Skills … And Experience Strong Data Science/Statistical fundamental knowledge is required Experience across some of recommenders, forecasting, pricing, churn, marketing etc. - this is a role for a generalist! Exposure to some of GenAI, NLP, Computer Vision is a bonus MSc in a STEM subject (Maths, Physics, Data Science More ❯

The Vacancy Are you a Principal Data Scientist looking to join an organisation where what you do genuinely makes an impact? Where you are empowered, heard and able to think creatively? Then look no further because we are what you have been looking for! We are looking … for a Senior Principal Data Scientist with strong technical skills using either Python or R, experience leading teams and the ability to communicate with both technical and non-technical teams across the business. This role sits within Optum UK Health Analytics team responsible for taking large data … various sources and converting them into meaningful insights on UK healthcare. You will play a key role in developing and implementing Optum UK’s data science capabilities in the UK. Integrated within the UK Product team, you will use artificial intelligence (AI) models to create new and augment existing More ❯

The Vacancy Are you a Principal Data Scientist looking to join an organisation where what you do genuinely makes an impact? Where you are empowered, heard and able to think creatively? Then look no further because we are what you have been looking for! We are looking … for a Senior Principal Data Scientist with strong technical skills using either Python or R, experience leading teams and the ability to communicate with both technical and non-technical teams across the business. This role sits within Optum UK Health Analytics team responsible for taking large data … various sources and converting them into meaningful insights on UK healthcare. You will play a key role in developing and implementing Optum UK’s data science capabilities in the UK. Integrated within the UK Product team, you will use artificial intelligence (AI) models to create new and augment existing More ❯

The Vacancy Are you a Principal Data Scientist looking to join an organisation where what you do genuinely makes an impact? Where you are empowered, heard and able to think creatively? Then look no further because we are what you have been looking for! We are looking … for a Senior Principal Data Scientist with strong technical skills using either Python or R, experience leading teams and the ability to communicate with both technical and non-technical teams across the business. This role sits within Optum UK Health Analytics team responsible for taking large data … various sources and converting them into meaningful insights on UK healthcare. You will play a key role in developing and implementing Optum UK’s data science capabilities in the UK. Integrated within the UK Product team, you will use artificial intelligence (AI) models to create new and augment existing More ❯

The Vacancy Are you a Principal Data Scientist looking to join an organisation where what you do genuinely makes an impact? Where you are empowered, heard and able to think creatively? Then look no further because we are what you have been looking for! We are looking … for a Senior Principal Data Scientist with strong technical skills using either Python or R, experience leading teams and the ability to communicate with both technical and non-technical teams across the business. This role sits within Optum UK Health Analytics team responsible for taking large data … various sources and converting them into meaningful insights on UK healthcare. You will play a key role in developing and implementing Optum UK’s data science capabilities in the UK. Integrated within the UK Product team, you will use artificial intelligence (AI) models to create new and augment existing More ❯

The Vacancy Are you a Principal Data Scientist looking to join an organisation where what you do genuinely makes an impact? Where you are empowered, heard and able to think creatively? Then look no further because we are what you have been looking for! We are looking … for a Senior Principal Data Scientist with strong technical skills using either Python or R, experience leading teams and the ability to communicate with both technical and non-technical teams across the business. This role sits within Optum UK Health Analytics team responsible for taking large data … various sources and converting them into meaningful insights on UK healthcare. You will play a key role in developing and implementing Optum UK’s data science capabilities in the UK. Integrated within the UK Product team, you will use artificial intelligence (AI) models to create new and augment existing More ❯

The Vacancy Are you a Principal Data Scientist looking to join an organisation where what you do genuinely makes an impact? Where you are empowered, heard and able to think creatively? Then look no further because we are what you have been looking for! We are looking … for a Senior Principal Data Scientist with strong technical skills using either Python or R, experience leading teams and the ability to communicate with both technical and non-technical teams across the business. This role sits within Optum UK Health Analytics team responsible for taking large data … various sources and converting them into meaningful insights on UK healthcare. You will play a key role in developing and implementing Optum UK’s data science capabilities in the UK. Integrated within the UK Product team, you will use artificial intelligence (AI) models to create new and augment existing More ❯

The Vacancy Are you a Principal Data Scientist looking to join an organisation where what you do genuinely makes an impact? Where you are empowered, heard and able to think creatively? Then look no further because we are what you have been looking for! We are looking … for a Senior Principal Data Scientist with strong technical skills using either Python or R, experience leading teams and the ability to communicate with both technical and non-technical teams across the business. This role sits within Optum UK Health Analytics team responsible for taking large data … various sources and converting them into meaningful insights on UK healthcare. You will play a key role in developing and implementing Optum UK’s data science capabilities in the UK. Integrated within the UK Product team, you will use artificial intelligence (AI) models to create new and augment existing More ❯

The Vacancy Are you a Principal Data Scientist looking to join an organisation where what you do genuinely makes an impact? Where you are empowered, heard and able to think creatively? Then look no further because we are what you have been looking for! We are looking … for a Senior Principal Data Scientist with strong technical skills using either Python or R, experience leading teams and the ability to communicate with both technical and non-technical teams across the business. This role sits within Optum UK Health Analytics team responsible for taking large data … various sources and converting them into meaningful insights on UK healthcare. You will play a key role in developing and implementing Optum UK’s data science capabilities in the UK. Integrated within the UK Product team, you will use artificial intelligence (AI) models to create new and augment existing More ❯

The Vacancy Are you a Principal Data Scientist looking to join an organisation where what you do genuinely makes an impact? Where you are empowered, heard and able to think creatively? Then look no further because we are what you have been looking for! We are looking … for a Senior Principal Data Scientist with strong technical skills using either Python or R, experience leading teams and the ability to communicate with both technical and non-technical teams across the business. This role sits within Optum UK Health Analytics team responsible for taking large data … various sources and converting them into meaningful insights on UK healthcare. You will play a key role in developing and implementing Optum UK’s data science capabilities in the UK. Integrated within the UK Product team, you will use artificial intelligence (AI) models to create new and augment existing More ❯

The Vacancy Are you a Principal Data Scientist looking to join an organisation where what you do genuinely makes an impact? Where you are empowered, heard and able to think creatively? Then look no further because we are what you have been looking for! We are looking … for a Senior Principal Data Scientist with strong technical skills using either Python or R, experience leading teams and the ability to communicate with both technical and non-technical teams across the business. This role sits within Optum UK Health Analytics team responsible for taking large data … various sources and converting them into meaningful insights on UK healthcare. You will play a key role in developing and implementing Optum UK’s data science capabilities in the UK. Integrated within the UK Product team, you will use artificial intelligence (AI) models to create new and augment existing More ❯

The Vacancy Are you a Principal Data Scientist looking to join an organisation where what you do genuinely makes an impact? Where you are empowered, heard and able to think creatively? Then look no further because we are what you have been looking for! We are looking … for a Senior Principal Data Scientist with strong technical skills using either Python or R, experience leading teams and the ability to communicate with both technical and non-technical teams across the business. This role sits within Optum UK Health Analytics team responsible for taking large data … various sources and converting them into meaningful insights on UK healthcare. You will play a key role in developing and implementing Optum UK’s data science capabilities in the UK. Integrated within the UK Product team, you will use artificial intelligence (AI) models to create new and augment existing More ❯

The Vacancy Are you a Principal Data Scientist looking to join an organisation where what you do genuinely makes an impact? Where you are empowered, heard and able to think creatively? Then look no further because we are what you have been looking for! We are looking … for a Senior Principal Data Scientist with strong technical skills using either Python or R, experience leading teams and the ability to communicate with both technical and non-technical teams across the business. This role sits within Optum UK Health Analytics team responsible for taking large data … various sources and converting them into meaningful insights on UK healthcare. You will play a key role in developing and implementing Optum UK’s data science capabilities in the UK. Integrated within the UK Product team, you will use artificial intelligence (AI) models to create new and augment existing More ❯

The Vacancy Are you a Principal Data Scientist looking to join an organisation where what you do genuinely makes an impact? Where you are empowered, heard and able to think creatively? Then look no further because we are what you have been looking for! We are looking … for a Senior Principal Data Scientist with strong technical skills using either Python or R, experience leading teams and the ability to communicate with both technical and non-technical teams across the business. This role sits within Optum UK Health Analytics team responsible for taking large data … various sources and converting them into meaningful insights on UK healthcare. You will play a key role in developing and implementing Optum UK’s data science capabilities in the UK. Integrated within the UK Product team, you will use artificial intelligence (AI) models to create new and augment existing More ❯

The Vacancy Are you a Principal Data Scientist looking to join an organisation where what you do genuinely makes an impact? Where you are empowered, heard and able to think creatively? Then look no further because we are what you have been looking for! We are looking … for a Senior Principal Data Scientist with strong technical skills using either Python or R, experience leading teams and the ability to communicate with both technical and non-technical teams across the business. This role sits within Optum UK Health Analytics team responsible for taking large data … various sources and converting them into meaningful insights on UK healthcare. You will play a key role in developing and implementing Optum UK’s data science capabilities in the UK. Integrated within the UK Product team, you will use artificial intelligence (AI) models to create new and augment existing More ❯

The Vacancy Are you a Principal Data Scientist looking to join an organisation where what you do genuinely makes an impact? Where you are empowered, heard and able to think creatively? Then look no further because we are what you have been looking for! We are looking … for a Senior Principal Data Scientist with strong technical skills using either Python or R, experience leading teams and the ability to communicate with both technical and non-technical teams across the business. This role sits within Optum UK Health Analytics team responsible for taking large data … various sources and converting them into meaningful insights on UK healthcare. You will play a key role in developing and implementing Optum UK’s data science capabilities in the UK. Integrated within the UK Product team, you will use artificial intelligence (AI) models to create new and augment existing More ❯

The Vacancy Are you a Principal Data Scientist looking to join an organisation where what you do genuinely makes an impact? Where you are empowered, heard and able to think creatively? Then look no further because we are what you have been looking for! We are looking … for a Senior Principal Data Scientist with strong technical skills using either Python or R, experience leading teams and the ability to communicate with both technical and non-technical teams across the business. This role sits within Optum UK Health Analytics team responsible for taking large data … various sources and converting them into meaningful insights on UK healthcare. You will play a key role in developing and implementing Optum UK’s data science capabilities in the UK. Integrated within the UK Product team, you will use artificial intelligence (AI) models to create new and augment existing More ❯

The Vacancy Are you a Principal Data Scientist looking to join an organisation where what you do genuinely makes an impact? Where you are empowered, heard and able to think creatively? Then look no further because we are what you have been looking for! We are looking … for a Senior Principal Data Scientist with strong technical skills using either Python or R, experience leading teams and the ability to communicate with both technical and non-technical teams across the business. This role sits within Optum UK Health Analytics team responsible for taking large data … various sources and converting them into meaningful insights on UK healthcare. You will play a key role in developing and implementing Optum UK’s data science capabilities in the UK. Integrated within the UK Product team, you will use artificial intelligence (AI) models to create new and augment existing More ❯

Principal Data Scientist X3 days a week in office Xcede are delighted to be working an organisation who have a truly global reach within their field. The company deal with a wealth of both structured and unstructured data in order to help their clients understand their … millions of customers better. The organisation builds impactful Data Science and Machine Learning tools for these clients, too. The company have a pre-established Data Science & Machine Learning unit headed up by a very experienced Head of Data Science, and they are continuing to expand their team … with the hire of another Principal Data Scientist. Preferred skills and expertise include: Recommendation Systems, Segmentations, Forecasting, Casual AI, MMM (Media Mix Modeling), NLP, Computer Vision, LLMs, RAG, etc. Responsibilities Build and deploy effective statistical and machine learning models. Advise on proper Model Deployment infrastructure. Mentor and guide More ❯

Principal Data Scientist X3 days a week in office Xcede are delighted to be working an organisation who have a truly global reach within their field. The company deal with a wealth of both structured and unstructured data in order to help their clients understand their … millions of customers better. The organisation builds impactful Data Science and Machine Learning tools for these clients, too. The company have a pre-established Data Science & Machine Learning unit headed up by a very experienced Head of Data Science, and they are continuing to expand their team … with the hire of another Principal Data Scientist. Preferred skills and expertise include: Recommendation Systems, Segmentations, Forecasting, Casual AI, MMM (Media Mix Modeling), NLP, Computer Vision, LLMs, RAG, etc. Responsibilities Build and deploy effective statistical and machine learning models. Advise on proper Model Deployment infrastructure. Mentor and guide More ❯

Lead/Principal Data Scientist London – Hybrid (3 days a week) £90,000 - £115,000 + Benefits Our client is a precision marketing agency, leveraging data, technology, and creativity to fuel client growth. As part of their Marketing Sciences Data Science Team, you’ll play … a pivotal role in revolutionising marketing strategies through cutting-edge Data Science and Machine Learning solutions. This is still a largely hands on role, with around 20% team leadership. What You’ll Do Oversee data science projects, guide junior team members, and drive innovation. Build predictive models for … Pandas, and PyTorch. Expertise in cloud platforms (AWS, Databricks, Snowflake) and containerisation tools (Docker, Kubernetes). Strong leadership skills with experience mentoring and managing data science teams. Deep knowledge of media measurement techniques, such as media mix modelling. Experience with advanced AI techniques, including NLP, GenAI, and CausalAI. Familiarity More ❯