1 to 25 of 35 Permanent Principal Data Scientist Jobs

.Senior Principal Data Scientist page is loaded## Senior Principal Data Scientistlocations: UK - London (London Wall): Londontime type: Full timeposted on: Posted Todayjob requisition id: R107535**Senior Principal Data Scientist****About the Business**At Cirium our goal is to keep the world connected. … solutions, and scale products that deliver meaningful value to customers. Our environment supports autonomy, learning, and inclusive collaboration.**About the Role**As a **Senior Principal Data Scientist**, you will contribute deep technical expertise while helping shape best practices across the data science community. This ...

Principal Data Scientist About the Business At Cirium's goal is to keep the world connected. We are the industry leader in aviation analytics; helping our customers understand the past, present, and predicting what will happen tomorrow. Our mission is to transform the aviation industry by enabling … ideas, test solutions, and scale products that deliver meaningful value to customers. Our environment supports autonomy, learning, and inclusive collaboration. Our Tech Stack Big Data: Databricks, AWS, Snowflake, Azure Programming: Python, SQL, PySpark Frameworks: PyTorch, LangChain About the Role As a Principal Data Scientist, you will ...

Principal Data Scientist page is loaded## Principal Data Scientistremote type: Hybridlocations: London, United Kingdomtime type: Full timeposted on: Posted Todayjob requisition id: R0020855## What You'll Do* Lead high-impact data science initiatives end-to-end, including problem framing, methodology selection, experiment development, implementation … Drive scalable experimentation with A/B and Multi-armed bandit testing frameworks, power analysis, variance reduction, and online-offline alignment.* Work together with Data Engineering, MLOps, and Game Tech teams to guarantee dependable data foundations, feature accessibility, and model deployment pathways.* Build internal data products ...

Principal Data Scientist You’ll be part of the Operations Delivery Intelligence (ODI) directorate, leading the delivery of high‐value data science products that support and automate decision‐making across critical business areas. This team plays a vital role in unlocking value from data, driving … optimisation and enabling evidence‐based decisions across the airline. What you’ll do: Lead the end‐to‐end delivery and lifecycle management of data science products and initiatives Scope and frame ill‐defined business problems and define data science solutions aligned with business goals Manage and coach data ...

Role overview The Principal Data Scientist will lead significant data science work across AWTG and client programmes, shaping technical direction, standards and delivery approaches. The role requires deep expertise in data science, strong leadership and the ability to turn advanced analytics into organisational impact. … will work with multidisciplinary teams across data, AI, software engineering, product, QA and delivery to create practical outcomes for clients and end users. Key responsibilities Lead the scoping, design and delivery of complex data science products, models and analytical solutions. Set standards for modelling, validation, reproducibility, coding, documentation ...

Principal Data Scientist The closing date is 03 June 2026 Main Duties of the Job In this role, you will act as a senior technical authority, shaping and assuring complex analytical work that informs decision‐making across health systems, research and innovation partners. You will lead … development of analytical and data engineering standards, support the evolution of ICHP’s RWE offer, and provide hands‐on technical input to priority and high‐risk projects. For example, large‐scale linkage of NHS data with non‐healthcare resources (e.g. HMRC or Department for Education datasets ...

Build a brilliant future with Hiscox. As a Principal Data Scientist you will be an integral part of a dynamic technical team, strategically focused on leveraging data science across our diverse business functions. Your expertise will transform underwriting capabilities and extend through the entire insurance value … chain, championing a multi-disciplinary approach to complex problem‐solving. You will lead the end‐to‐end delivery of our most significant and complex data science initiatives, driving technical strategy, architecture, and best practices. You will mentor and coach junior and mid‐level colleagues, elevate the overall team capability ...

inspired to think big and bring your ambition to work every day, which is why, at British Airways the sky is never the limit. Principal Data Scientist You’ll be part of the Operations Delivery Intelligence (ODI) directorate, leading the delivery of high‐value data science … products that support and automate decision‐making across critical business areas. This team plays a vital role in unlocking value from data, driving optimisation and enabling evidence‐based decisions across the airline. What you’ll do: Lead the end‐to‐end delivery and lifecycle management of data science ...

hands-on data scientist with deep expertise in NLP and LLMs, strong Python coding skills, and a track record of deploying models to production? Do you thrive in building real-world AI solutions that are used by actual customers? If so, we'd love to talk … ROLE SUMMARY: As a Principal Data Scientist (individual contributor), you will play a hands-on role in designing, building, and deploying scalable AI solutions that go beyond prototypes and are actively used in production. You'll work closely with collaborative teams to co-develop innovative products ...

AWTG Ltd. is seeking a Principal Data Scientist to lead complex data science projects while shaping technical standards and delivery approaches. This role demands extensive experience in data science solutions, applied statistics, and machine learning. You will guide teams while ensuring ethical practices in data usage. Candidates should excel in stakeholder communication and have a passion for mentoring and continuous improvement in data science capabilities. #J-18808-Ljbffr ...

complex challenges, uncovering insights, and driving innovation with advanced analytics? If so, we could have the perfect opportunity for you! We’re seeking a Principal Data Scientist to join our award-winning digital team at Stantec. You will be working alongside leading Analysts and Data Engineering … High Wycombe or London offices, with hybrid working allowing for a mix of in‐office and home working. What You’ll Be Doing Leading Data Science Initiatives – apply your expertise in data modelling, cleansing, and analytics to create innovative solutions that drive digital transformation. Deriving Powerful Insights ...

complex challenges, uncovering insights, and driving innovation with advanced analytics? If so, we could have the perfect opportunity for you! We’re seeking a Principal Data Scientist to join our award-winning digital team at Stantec. You will be working alongside leading Analysts and Data Engineering … High Wycombe or London offices, with hybrid working allowing for a mix of in-office and home working. What You’ll Be Doing Leading Data Science Initiatives – apply your expertise in data modelling, cleansing, and analytics to create innovative solutions that drive digital transformation. Deriving Powerful Insights ...

Hiscox Underwriting Group Services Ltd (HUGS) is seeking a Principal Data Scientist to lead complex data science initiatives and transform underwriting capabilities. You will mentor junior data scientists and collaborate with various business functions to maximize value across the insurance value chain. The ideal candidate … will have a degree in a quantitative field and substantial experience in data science, particularly in machine learning and statistical modeling. A strong ability to communicate complex findings to diverse audiences is essential, alongside proficiency in Python and SQL. #J-18808-Ljbffr ...

## Principal Data Scientist & Machine Learning ResearcherApplylocations: Gloucester, South Gloucestershire: Manchester, Lancashire: London, Londontime type: Full timeposted on: Posted 30+ Days Agojob requisition id: 01804570**Date Posted:**2026-02-23**Country:**United Kingdom**Location:**Gloucester, South Gloucestershire**Position Role Type:**Unspecified**Gloucester, London or Manchester****Hybrid role … safer and more connected world.**About the role:** This role is within the Strategic Research Group (SRG). The SRG are a team of Data Science, Machine Learning and AI specialists who develop novel AI solutions to mission focussed problems. In this role you will work with high levels ...

## Principal Data Scientist & Machine Learning ResearcherApplylocations: Gloucester, South Gloucestershire: Manchester, Lancashire: London, Londontime type: Full timeposted on: Posted 30+ Days Agojob requisition id: 01804570**Date Posted:**2026-02-23**Country:**United Kingdom**Location:**Gloucester, South Gloucestershire**Position Role Type:**Unspecified**Gloucester, London or Manchester****Hybrid role … safer and more connected world.**About the role:** This role is within the Strategic Research Group (SRG). The SRG are a team of Data Science, Machine Learning and AI specialists who develop novel AI solutions to mission focussed problems. In this role you will work with high levels ...

## Principal Data Scientist & Machine Learning ResearcherApplylocations: Gloucester, South Gloucestershire: Manchester, Lancashire: London, Londontime type: Full timeposted on: Posted 30+ Days Agojob requisition id: 01804570**Date Posted:**2026-02-23**Country:**United Kingdom**Location:**Gloucester, South Gloucestershire**Position Role Type:**Unspecified**Gloucester, London or Manchester****Hybrid role … safer and more connected world.**About the role:** This role is within the Strategic Research Group (SRG). The SRG are a team of Data Science, Machine Learning and AI specialists who develop novel AI solutions to mission focussed problems. In this role you will work with high levels ...

growing team An exciting opportunity to work for a leading company with a significant presence globally as part of a growing London-based Data Science team. The company is known for their specialization in complex fields and they have built a reputation for using data science and analytics … decision‐making across the whole organisation. The role You will be an integral part of a skilled technical team with a focus on leveraging data science to support a wide range of business functions. As a Principal Data Scientist, you will be responsible for leading ...

Stantec Consulting International Ltd. is looking for a Principal Data Scientist to join their team in High Wycombe or London. The role involves leading data science initiatives, developing data-driven insights, and mentoring junior colleagues. Candidates should excel in Python, machine learning, and cloud solutions. ...

leading analytics company in London is seeking a Senior Principal Data Scientist to provide technical leadership in advanced analytics and machine learning. This role involves mentoring fellow data scientists and collaborating with cross-functional teams to deliver data-driven solutions, with a focus … aviation sector. Ideal candidates will have expertise in data management, strong programming skills in Python and SQL, and the ability to communicate complex ideas effectively. This position offers generous company benefits and opportunities for personal growth. #J-18808-Ljbffr ...

hiring a Principal Data Scientist in the City of Westminster, responsible for leading complex analytical projects and ensuring high standards of data governance. Applicants should have significant experience in data science and technical oversight, expertise in R and Python, and knowledge of large datasets. … salary ranges from £88,250 to £100,355 per year, and the role entails providing hands-on technical input and influencing health data use for better population outcomes. #J-18808-Ljbffr ...

leading gaming company in London is looking for a Principal Data Scientist to lead high-impact data science initiatives. The role involves building machine learning solutions that drive player engagement and retention. Candidates should have a PhD or MSc and over 5 years of experience delivering … data products in the gaming industry. The position offers a hybrid work model and opportunities for professional growth in a supportive environment. #J-18808-Ljbffr ...

opportunity for meaningful innovation and are proud to set the gold‐standard for marrying technical excellence with safe deployment. About the role As a Principal Data Scientist at Faculty, you will serve as a technical leader and domain expert who owns and drives the delivery … most technically complex, high‐impact projects and programmes for our most important clients. You also will set the technical direction for the data science team, mentor, and develop them so our data scientists remain best in class. This position focuses on deep individual contribution and technical excellence, influencing ...

Stantec Consulting International Ltd. is seeking a Principal Data Scientist to join their digital team in the UK, focusing on innovative solutions for the water sector. The position offers hybrid working from their High Wycombe or London offices. The ideal candidate will excel in Python, data visualisations, and have experience with machine learning and cloud deployment. This role requires leadership in data science projects and collaboration with clients to deliver impactful results. #J-18808-Ljbffr ...

Principal Data Scientist – AI London, United Kingdom Posted 11 months ago Tech Stack TypeScript Java Artificial Intelligence Python Requirements Proficiency in Python, with experience building and maintaining AI systems, not just analyses. Experience working in Java or TypeScript environments beneficial. Experience with Claude, OpenAI, Bedrock is nice ...

leading analytics firm in London seeks a Senior Principal Data Scientist to drive advanced analytics in the aviation sector. This pivotal role emphasizes mentorship, technical leadership, and hands-on development of innovative data-driven solutions. Ideal candidates should be proficient in Python and SQL, experienced ...