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Virgin Media O2 • London, UK

Senior Data Scientist

Employment type:  Full time
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Job Description


The Senior Data Scientist will play a major role in developing and implementing predictive models and conducting detailed data exploration to maximise business value and growth through advanced data science and AI techniques. A key upcoming focus area will be the development of agentic AI systems leveraging large language models (LLMs) to automate customer call‑centre interactions for basic queries, improving customer experience and reducing operational load.

The models and AI agents you create will feed critical business infrastructure, offering a fantastic platform to hone your machine learning and applied generative AI skills with direct, high‑visibility impact on business outcomes. You will work as part of a high‑performing data science & insight team with ownership across the modelling lifecycle and the wider predictive modelling eco‑system.

The ideal candidate will be experienced in managing and developing a team, while remaining hands‑on and passionate about building state‑of‑the‑art machine learning and LLM‑powered solutions. Strong commercial acumen is essential to ensure every model, agent, and automation initiative maps directly to business goals. You will bring advanced data manipulation skills to unlock the value of our extensive data assets and ensure optimal deployment of production models and agent workflows.

Who we are We’re a flexible-first organisation, because we know people do their best work when they have choice and clarity. To support meaningful collaboration, we ask everyone to spend at least eight days each month connecting in person.

That doesn’t just mean time in the office, it could be team meetings, offsites, volunteering days, cross-functional projects, or away days - anywhere meaningful collaboration happens. What matters is making those moments purposeful, so when we come together, it really counts.

Accessible, inclusive and equitable for all

Virgin Media O2 is an equal opportunities employer and we're working hard to remove bias and barriers for our people and candidates. So, we build equity and inclusion into everything we do, from the policies we craft to the relationships we shape. We support and encourage you to be your authentic self throughout your application journey with us....Less The must haves In order to be considered, you must have the following experience;

  • Hands‑on leadership experience, including managing and developing data science teams
  • Strong mathematics or statistics foundation (MSc/PhD or 5+ years applied experience)
  • Advanced SQL and Python skills, with strong knowledge of core data science libraries
  • Ability to design and manage data science development processes, including model factories, ML ops workflows, and scalable production pipelines
  • Proven ability to apply machine learning, NLP, and generative AI/LLM techniques to real‑world problems
  • Excellent communication skills, able to explain complex approaches to non‑technical partners and drive business impact

The other stuff we are looking for

  • Experience translating consumer and operational problems into analytics, AI agent, or automation use cases

  • Familiarity with conversational AI, LLM fine‑tuning, prompt engineering, and agentic design patterns (call‑centre automation a strong plus)

  • Experienced with A/B testing methodologies and experimentation frameworks

  • Advanced data wrangling, transformation, visualisation, and data storytelling skills

  • Strong commercial awareness, with a proactive, creative, solutions‑oriented mindset

  • Comfortable working in a shipping‑product, continuous‑improvement environment, and committed to staying current with evolving ML and generative AI fields

What's in it for you

Join and you’ll be part of the Virgin Media family. We’re a great place to work – and we offer impressive benefits too! You will get a generous holiday allowance, contributory pension, performance related bonus and, of course, discounts across Virgin Media products and Virgin brands!

Next steps

If we feel like a place where you can belong, we'd love to learn more about you as a person and your experience to date. Once you've submitted an application the next steps of the process, if successful, are likely to include a two stage interview process including competency and technical stages.

When you apply, you'll be asked about any adjustments you might need to support the recruitment process. Let us know, and we'll be sure to discuss it with you.

Please note: Applications will be reviewed, and interviews conducted throughout the duration of this advert, therefore we may bring the closing date forward. We encourage all interested applicants to apply as soon as possible. If you’re offered a job with us, it will be conditional, based on the passing of background checks. All roles require a criminal record check and some roles need a financial probity check. Your recruiter can provide you with more information if needed.

Thanks for your patience and for showing an interest in joining the Virgin Media O2 family.

Apply now

Company benefits

25 days annual leave + bank holidays
Adoption leave – 26 weeks at full pay
Annual bonus
Bike parking
Birthday off
Buy or sell annual leave
Carer’s leave – 5 days paid leave (can be taken as 10 half days)
Chill out zone
Collaboration spaces
Compassionate leave
Critical Illness Insurance
Cycle to work scheme
Dental coverage
Electric Car Salary Sacrifice
Emergency leave
Employee discounts
Enhanced maternity leave – 26 weeks at full pay
Enhanced paternity leave – 14 weeks at full pay
Enhanced pension match/contribution
Enhanced sick pay
Eye Care Support
Faith rooms
Family health insurance
Financial coaching
Hackathons
In house training
Life assurance
Meditation space
Menopause support
Mental health platform access
Mental health support
Neonatal leave
On-site catering
On-site shower
On-site wellness room
Open to job sharing
Open to part time work for some roles
Open to part-time employees
Pregnancy loss leave
Private booths
Professional subscriptions
Referral bonus
Returnship
Shared parental leave
Teambuilding days
Volunteer days – 5 days paid on top of 25 days annual leave plus bank holidays
Neurodiversity assessment
Health insurance
Health assessment
Women’s health support
Men’s health support
Mental health first aiders
Lunch and learns
On-site barista
Life insurance
Mentoring

Working at Virgin Media O2

Company employees:

16,000

Gender diversity (m:f):

63:37

Hiring in countries

United Kingdom

Office Locations

Awards & Accreditations

3rd - Best Employee Wellbeing

3rd - Best Employee Wellbeing

Flexa awards 2026
3rd - Best Work-Life Balance

3rd - Best Work-Life Balance

Flexa awards 2026
2nd - Most Family Friendly Company

2nd - Most Family Friendly Company

Flexa awards 2025
Best Career Progression

Top 5 - Best Career Progression

Flexa awards 2025
Most Flexible Company

Most Flexible Company

Flexa awards 2025
3rd – Large companies

3rd – Large companies

Flexa100 2024
Consumer Goods

Consumer Goods

Industry awards 2023
2nd – Large companies

2nd – Large companies

Flexa100 2023

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