178 Senior Data Scientist jobs in the United Kingdom

Role Purpose:To lead data science projects from initial problem statement, through to data exploration, transformation, and the application of enhanced analytics to our existing business processes. In addition, support the Commercial team in transforming the capabilities of data analytics, data engineering and data science. Being a part of the central data team as a dedicated resource to the commercial team, you will drive a new data culture, best working practice, and advanced data methodologies to build, improve and automate solutions to drive commercial excellence in decision-making.
Accountabilities

• Use a flexible, analytical approach to design, develop, and evaluate predictive models and advanced algorithms that lead to optimal value extraction from the data.
• Maintain reproducible model building workflows, document experimental designs and track model performance.
• Create solutions across Commercial, Operations and Overheads to influence business strategy and decision-making.
• Effectively partner with commercial managers across Pricing, Sales, and Ecommerce, to develop long-term strategic growth initiatives, and be a critical team member on project implementation.
• Apply knowledge of statistics, machine learning, programming, data modelling, simulation, and advanced mathematics to recognise patterns, identify opportunities, pose business questions, and make valuable discoveries, leading to prototype development and product improvement.
• End-to-end implementation of data science pipelines.

Experience and QualificationsKnowledge/Skills

• Expertise in tools such as SQL, Azure Data Factory, Azure Databricks, Azure Synapse, R, Python and Power BI.
• Exceptional ability to communicate strategic and technical concepts to a diverse audience and translate business needs into technical requirements
• Experience of liaising effectively with Data Engineers and a thorough understanding of modern software development practices and tools (e.g. testing, containerisation and Azure cloud technologies).
• Working in an agile methodology through the use of Jira and Confluence (Sprints and project management)
• Comfortable challenging stakeholders to migrate flat file data into a consolidated environment, improving data integrity and overall accessibility

Hays Specialist Recruitment Limited acts as an employment agency for permanent recruitment and employment business for the supply of temporary workers. By applying for this job you accept the T&C's, Privacy Policy and Disclaimers which can be found at (url removed)

Data Scientist - GCP | 500-550 per day (Inside IR35)
2 Days Onsite - Isleworth, West London | 6-Month Contract (Extendable)

83zero are partnered with a global leader in media and broadcasting, looking for an experienced Data Scientist to support a business-critical project. You'll be joining a collaborative team of data scientists and engineers to build and refine machine learning models that deliver genuine commercial impact.

What You'll Be Doing:

• Work closely with fellow data scientists to explore how AI/ML can unlock insights and improve decision-making.

• Perform advanced analysis on large, complex datasets using statistical and modelling techniques.

• Build, test, and tune ML models (especially NLP or computer vision) using Python and modern ML libraries, all within Google Cloud Platform (GCP) .

• Optimise models for accuracy and performance, ready for product integration.

• Stay up-to-date with the latest developments in data science and AI to drive innovation.

• Present insights, results, and model performance clearly to both technical and non-technical stakeholders.

• Ensure your workflows are reproducible and well-documented, including experiment tracking and model lineage.

What You'll Bring:

• 3+ years' experience building and deploying ML models, ideally in NLP or computer vision domains.

• Expert-level Python and SQL, with solid experience using libraries like Pandas, Scikit-Learn, TensorFlow, etc.

• Proven experience working with BigQuery and big data pipelines on GCP .

• Deep understanding of statistics, machine learning algorithms, and data modelling.

• Strong analytical mindset with a knack for turning data into actionable business insight.

• Excellent communication skills and a strong sense of ethics around data and AI.

This is a fantastic opportunity to contribute to an industry-leading team, solving real-world problems with cutting-edge tools over an initial 6-month contract .

I have 2 new Data Science roles for a client in the medical sector.

500 per day Inside IR35 - Fully remote

Looking for experience in the following:
- Python
- R
- Power BI
- Athena
- Oracle DB
- C++
- PL/SQL

Candidates must be UK based and eligible for a BPSS check.

Please send CVs ASAP to (url removed) and I will be in touch

2X Data Scientist Contract

Core skills: Python ideal, R and SQL

Role 1: Requires: PowerBi, Athena skills
Role 2: Oracle DB, C++, PL/SQL - ideally they need to be able to work their way around Oracle.

Typical outputs that we would expect of these roles are as follows:

• help the project team measure and assess service performance outcomes (for example, what good looks like and how it will be measured)
• applying analysis techniques to relevant contexts
• helping to define and create performance measurements with the wider team, including identifying reporting requirements, advising on tooling, implementation and validation of tools to deliver against these requirements
• present analysis and visualisations in clear ways to both specialist and non-specialist audiences, with support
• give tactical recommendations based on analysis and insight to inform decision making

Inside IR35

Remote

Initial 6 Month Contract

Experience with a health care organisation is essesntial

Please send me a copy of your CV is you're interested

Your new company
You will be working for a leading consultancy who is responsible for providing solutions to the most complex and critical challenges in Defence, Security, Intelligence, and National Infrastructure.

Your new role
In your new role as a Data Scientist, you'll be involved in developing insights from complex datasets using Python, R, SQL. You will design and deploy innovative AI and machine learning solutions across varied projects that will challenge and grow your expertise.

What you'll need to succeed
To be successful in this role, you will need to have previous experience in a similar role, knowledge and demonstrable experience of Python, R and SQL, an understanding of data product life cycles and AI/ML principles. A degree in a relevant field would be an advantage and possess excellent communication and consulting abilities.

What you'll get in return
Flexible working options are available, which include hybrid working and flex on working hours.

What you need to do now
If you're interested in this role, click 'apply now' to forward an up-to-date copy of your CV, or call us now.
If this job isn't quite right for you, but you are looking for a new position, please contact us for a confidential discussion on your career.

Hays EA is a trading division of Hays Specialist Recruitment Limited and acts as an employment agency for permanent recruitment and employment business for the supply of temporary workers. By applying for this job you accept the T&C's, Privacy Policy and Disclaimers which can be found at (url removed)

Role Purpose:To lead data science projects from initial problem statement, through to data exploration, transformation, and the application of enhanced analytics to our existing business processes. In addition, support the Commercial team in transforming the capabilities of data analytics, data engineering and data science. Being a part of the central data team as a dedicated resource to the commercial team, you will drive a new data culture, best working practice, and advanced data methodologies to build, improve and automate solutions to drive commercial excellence in decision-making.
Accountabilities

• Use a flexible, analytical approach to design, develop, and evaluate predictive models and advanced algorithms that lead to optimal value extraction from the data.
• Maintain reproducible model building workflows, document experimental designs and track model performance.
• Create solutions across Commercial, Operations and Overheads to influence business strategy and decision-making.
• Effectively partner with commercial managers across Pricing, Sales, and Ecommerce, to develop long-term strategic growth initiatives, and be a critical team member on project implementation.
• Apply knowledge of statistics, machine learning, programming, data modelling, simulation, and advanced mathematics to recognise patterns, identify opportunities, pose business questions, and make valuable discoveries, leading to prototype development and product improvement.
• End-to-end implementation of data science pipelines.

Experience and QualificationsKnowledge/Skills

• Expertise in tools such as SQL, Azure Data Factory, Azure Databricks, Azure Synapse, R, Python and Power BI.
• Exceptional ability to communicate strategic and technical concepts to a diverse audience and translate business needs into technical requirements
• Experience of liaising effectively with Data Engineers and a thorough understanding of modern software development practices and tools (e.g. testing, containerisation and Azure cloud technologies).
• Working in an agile methodology through the use of Jira and Confluence (Sprints and project management)
• Comfortable challenging stakeholders to migrate flat file data into a consolidated environment, improving data integrity and overall accessibility

Hays Specialist Recruitment Limited acts as an employment agency for permanent recruitment and employment business for the supply of temporary workers. By applying for this job you accept the T&C's, Privacy Policy and Disclaimers which can be found at (url removed)

2X Data Scientist Contract

Core skills: Python ideal, R and SQL

Role 1: Requires: PowerBi, Athena skills
Role 2: Oracle DB, C++, PL/SQL - ideally they need to be able to work their way around Oracle.

Typical outputs that we would expect of these roles are as follows:

• help the project team measure and assess service performance outcomes (for example, what good looks like and how it will be measured)
• applying analysis techniques to relevant contexts
• helping to define and create performance measurements with the wider team, including identifying reporting requirements, advising on tooling, implementation and validation of tools to deliver against these requirements
• present analysis and visualisations in clear ways to both specialist and non-specialist audiences, with support
• give tactical recommendations based on analysis and insight to inform decision making

Inside IR35

Remote

Initial 6 Month Contract

Experience with a health care organisation is essesntial

Please send me a copy of your CV is you're interested

Your new company
You will be working for a leading consultancy who is responsible for providing solutions to the most complex and critical challenges in Defence, Security, Intelligence, and National Infrastructure.

Your new role
In your new role as a Data Scientist, you'll be involved in developing insights from complex datasets using Python, R, SQL. You will design and deploy innovative AI and machine learning solutions across varied projects that will challenge and grow your expertise.

What you'll need to succeed
To be successful in this role, you will need to have previous experience in a similar role, knowledge and demonstrable experience of Python, R and SQL, an understanding of data product life cycles and AI/ML principles. A degree in a relevant field would be an advantage and possess excellent communication and consulting abilities.

What you'll get in return
Flexible working options are available, which include hybrid working and flex on working hours.

What you need to do now
If you're interested in this role, click 'apply now' to forward an up-to-date copy of your CV, or call us now.
If this job isn't quite right for you, but you are looking for a new position, please contact us for a confidential discussion on your career.

Hays EA is a trading division of Hays Specialist Recruitment Limited and acts as an employment agency for permanent recruitment and employment business for the supply of temporary workers. By applying for this job you accept the T&C's, Privacy Policy and Disclaimers which can be found at (url removed)

Data Scientist - GCP | 500-550 per day (Inside IR35)
2 Days Onsite - Isleworth, West London | 6-Month Contract (Extendable)

83zero are partnered with a global leader in media and broadcasting, looking for an experienced Data Scientist to support a business-critical project. You'll be joining a collaborative team of data scientists and engineers to build and refine machine learning models that deliver genuine commercial impact.

What You'll Be Doing:

• Work closely with fellow data scientists to explore how AI/ML can unlock insights and improve decision-making.

• Perform advanced analysis on large, complex datasets using statistical and modelling techniques.

• Build, test, and tune ML models (especially NLP or computer vision) using Python and modern ML libraries, all within Google Cloud Platform (GCP) .

• Optimise models for accuracy and performance, ready for product integration.

• Stay up-to-date with the latest developments in data science and AI to drive innovation.

• Present insights, results, and model performance clearly to both technical and non-technical stakeholders.

• Ensure your workflows are reproducible and well-documented, including experiment tracking and model lineage.

What You'll Bring:

• 3+ years' experience building and deploying ML models, ideally in NLP or computer vision domains.

• Expert-level Python and SQL, with solid experience using libraries like Pandas, Scikit-Learn, TensorFlow, etc.

• Proven experience working with BigQuery and big data pipelines on GCP .

• Deep understanding of statistics, machine learning algorithms, and data modelling.

• Strong analytical mindset with a knack for turning data into actionable business insight.

• Excellent communication skills and a strong sense of ethics around data and AI.

This is a fantastic opportunity to contribute to an industry-leading team, solving real-world problems with cutting-edge tools over an initial 6-month contract .