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Senior Data Scientist

Knutsford, United Kingdom

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Date live: 09/05/2025

Business Area: Global Security

Area of Expertise: Data & Analytics

Contract: Permanent

Reference Code: JR-0000043442

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Barclays Data and Analytics

A career in Data & Analytics at Barclays is a hub for top talent, from beginners to experts, fostering innovation and excellence. You'll drive business strategy, leverage data potential, and enhance the experience of millions of customers in today’s data-driven world.

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Join us as a Senior Data Scientist at Barclays, where you'll spearhead the evolution of our digital landscape, driving innovation and excellence. You'll harness cutting-edge technology to revolutionise our digital offerings, ensuring unparalleled customer experiences.  In this role, you will be an integral part of our Cyber Fraud Fusion Center, delivering scalable CFFC services to disrupt fraud and protect our customers and clients from economic crime. 

To be successful as a Senior Data Scientist you will need:

Essential Skills/Basic Qualifications: 

  • Experience working as data scientist in global organisation, covering broad spectre of analytical skills from data mining, traditional trend analysis to development of advanced machine learning models. Demonstrated ability to coach Data Scientists to deliver models, including project planning and relationship building with model owners and other stakeholders. 
  • Ability to enrich, transform and analyse large structured and unstructured datasets including but not limited to internal and external intelligence, fraud and business data in support of cybercrime advanced campaign analysis. Minimum requirement practical experience in: Relational and None-Relational databases, Python, Jupyter Notebook, Hadoop, Spark and Rest APIs 
  • Familiar with descriptive and prescriptive analysis, understanding data and distribution machine learning algorithms regression, clustering, bagging boosting, neural networks, confusion matrix, roc-auc curve, type I and type II errors, association analysis, frequent pattern mining, data mining, critical thinking to build KPIs for analysis based on defined problem. 
  • Statistics: probability, confidence interval, hypothesis testing, central limit theorem, t-test, z-test, chi-square and ANOVA 
  • Ability to design and build automated processes interlinking various sources and destinations in batch or real time including but not limited to REST APIs, databases, SFTP and queues. 

Some other highly valued skills include:

Desirable skills/Additional Qualifications: 

  • Experience with fraud detection and prevention systems, translating complex fraudsters modus operandi or behaviours into hypothesis and ML features. 
  • Knowledge of latest social engineering tactics used by cybercriminals, particularly in the scams space 
  • Broad spectrum of fundamental knowledge in web, networks (e.g. Proxies, VPN, DNS, web and mail servers) and cyber security
  • Experience leading Data Scientist teams across multiple locations delivering several concurrent projects.
  • Actively participates in and/or monitors research in data sciences methods, methodologies, developments and tooling.

You may be assessed on the key critical skills relevant for success in role, such as risk and controls, change and transformation, business acumen strategic thinking and digital and technology, as well as job-specific technical skills.

This role will be based out of our Knutsford location.

Purpose of the role

To use innovative data analytics and machine learning techniques to extract valuable insights from the bank's data reserves, leveraging these insights to inform strategic decision-making, improve operational efficiency, and drive innovation across the organisation. 

Accountabilities

  • Identification, collection, extraction of data from various sources, including internal and external sources.
  • Performing data cleaning, wrangling, and transformation to ensure its quality and suitability for analysis.
  • Development and maintenance of efficient data pipelines for automated data acquisition and processing.
  • Design and conduct of statistical and machine learning models to analyse patterns, trends, and relationships in the data.
  • Development and implementation of predictive models to forecast future outcomes and identify potential risks and opportunities.
  • Collaborate with business stakeholders to seek out opportunities to add value from data through Data Science.

Vice President Expectations

  • To contribute or set strategy, drive requirements and make recommendations for change. Plan resources, budgets, and policies; manage and maintain policies/ processes; deliver continuous improvements and escalate breaches of policies/procedures..
  • If managing a team, they define jobs and responsibilities, planning for the department’s future needs and operations, counselling employees on performance and contributing to employee pay decisions/changes. They may also lead a number of specialists to influence the operations of a department, in alignment with strategic as well as tactical priorities, while balancing short and long term goals and ensuring that budgets and schedules meet corporate requirements..
  • If the position has leadership responsibilities, People Leaders are expected to demonstrate a clear set of leadership behaviours to create an environment for colleagues to thrive and deliver to a consistently excellent standard. The four LEAD behaviours are: L – Listen and be authentic, E – Energise and inspire, A – Align across the enterprise, D – Develop others..
  • OR for an individual contributor, they will be a subject matter expert within own discipline and will guide technical direction. They will lead collaborative, multi-year assignments and guide team members through structured assignments, identify the need for the inclusion of other areas of specialisation to complete assignments. They will train, guide and coach less experienced specialists and provide information affecting long term profits, organisational risks and strategic decisions..
  • Advise key stakeholders, including functional leadership teams and senior management on functional and cross functional areas of impact and alignment.
  • Manage and mitigate risks through assessment, in support of the control and governance agenda.
  • Demonstrate leadership and accountability for managing risk and strengthening controls in relation to the work your team does.
  • Demonstrate comprehensive understanding of the organisation functions to contribute to achieving the goals of the business.
  • Collaborate with other areas of work, for business aligned support areas to keep up to speed with business activity and the business strategies.
  • Create solutions based on sophisticated analytical thought comparing and selecting complex alternatives. In-depth analysis with interpretative thinking will be required to define problems and develop innovative solutions.
  • Adopt and include the outcomes of extensive research in problem solving processes.
  • Seek out, build and maintain trusting relationships and partnerships with internal and external stakeholders in order to accomplish key business objectives, using influencing and negotiating skills to achieve outcomes.

All colleagues will be expected to demonstrate the Barclays Values of Respect, Integrity, Service, Excellence and Stewardship – our moral compass, helping us do what we believe is right. They will also be expected to demonstrate the Barclays Mindset – to Empower, Challenge and Drive – the operating manual for how we behave.

Barclays welcomes applications from all candidates and is committed to ensuring reasonable adjustments (accommodations) are put in place to allow for a fair and inclusive recruitment process. For more information and how to request one, please review Adjustments to the recruitment process.

We’re a global, vital and highly respected financial organisation with an inspiring Purpose. Operating in 39 countries and employing around 100,000 people across the world, we help communities, individuals and businesses thrive. And we’ve created financial solutions and technology that the world now takes for granted. A career with us can offer incredible variety, depth and breadth of experience, and the chance to learn from some of the best minds in technology and finance.

To find out more about Barclays' strategy please click here.

We are an equal opportunity employer and opposed to discrimination on any grounds. It is the policy of Barclays to ensure equal employment opportunity without discrimination or harassment on the basis of race, colour, creed, religion, national origin, alienage or citizenship status, age, sex, sexual orientation, gender identity or expression, marital or domestic/civil partnership status, disability, veteran status, genetic information, or any other basis protected by law.

Barclays is required by law to confirm that you have the Legal Right to Work in any role that you apply for. If you currently hold a work visa sponsored by Barclays, or you would require sponsorship from Barclays, you must declare this as part of your application. Sponsored visas are role and entity specific and any changes must be reviewed. It is important that you ensure you are working on the correct visa at all times. Failure to accurately disclose your visa status or Legal Right to Work may result in your application or any employment offer being withdrawn at any time.

This is Barclays Manchester

Barclays Knutsford is a world-class campus in the heart of the Cheshire countryside, and at the centre of our global operations. The place where it all happens. The place where we deliver the technology, security and customer care that our personal and corporate banking customers rely on 24/7/365.

Our redeveloped campus offers state-of-the art, collaborative workspaces set within 64 acres of lush gardens and surrounded by wildlife.

To ensure our campus is accessible to everyone, we offer a shuttle bus from the local bus, tram, and train stations on weekdays.

There are endless opportunities to socialise, pursue personal interests, visit the onsite gym, or join one of our many clubs and groups.

We run amazing experiences, from firework displays to gigs, diverse celebrations and art & crafts sessions. There’s something for you.

This is Barclays Manchester

Barclays Knutsford is a world-class campus in the heart of the Cheshire countryside, and at the centre of our global operations. The place where it all happens. The place where we deliver the technology, security and customer care that our personal and corporate banking customers rely on 24/7/365.

A workplace like no other

Our redeveloped campus offers state-of-the art, collaborative workspaces set within 64 acres of lush gardens and surrounded by wildlife.

Your commute

To ensure our campus is accessible to everyone, we offer a shuttle bus from the local bus, tram, and train stations on weekdays.

Much more than work

There are endless opportunities to socialise, pursue personal interests, visit the onsite gym, or join one of our many clubs and groups.

Immersive events

We run amazing experiences, from firework displays to gigs, diverse celebrations and art & crafts sessions. There’s something for you.

Multicultural ERGs at Barclays

Be you. Be valued. Belong.

We celebrate the unique perspectives and experiences each individual brings, believing our differences make us stronger and drive success.

You can learn more about our commitment to our colleague on our Inclusion and Opportunities page.

Learn more

Application Process

Your application

We’ll ask for information about you, your CV and cover letter.

1

Your assessment

Covering your behaviours and ability at work.

2

Your interview

Exploring your past experiences and skills.

3

Next step

We’ll request additional information so that you can complete our screening process

4
How to ApplyRead our FAQ's
Barclays

Working flexibly

We’re committed to providing a supportive and inclusive culture and environment for you to work in. This environment recognises and supports your personal needs, alongside the professional needs of our business. If you'd like to explore flexible working arrangements, please discuss this with the hiring manager. Your request will be reviewed in-line with the requirements of the role/business needs of the team.

Hybrid working

We have a structured approach to hybrid working, where colleagues work at an onsite location on fixed, ‘anchor’, days, as set by the business area. Please discuss the working pattern requirements for the role you are applying for with the hiring manager. Please note that working arrangements may be subject to change on reasonable notice to ensure we meet the needs of our business.

Barclays is built on an international scale.

Our geographic reach, our wide variety of functions, businesses, roles and locations reflect the rich diversity of our worldwide customer base. All of which means we offer incredible variety, depth and breadth of experience.
And the chance to learn from a globally diverse mix of colleagues, including some of the very best minds in banking, finance, technology and business. Throughout, we’ll encourage you to embrace mobility, exploring every part of our operations as you build your career.

Find more information

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Multicultural ERGs at Barclays

Be you. Be valued. Belong.

We celebrate the unique perspectives and experiences each individual brings, believing our differences make us stronger and drive success.

You can learn more about our commitment to our colleague on our Inclusion and Opportunities page.

Learn more