Senior Data Scientist

Regional Marketing - Team

Chester

Hybrid

GBP 63,000 - 77,000

Full time

14 days+

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Benefits offered by this job

Annual bonus

33 days holiday

Birthday day off

2 volunteering days

Pension scheme

Health plan

On-site gym

Job summary

Forge Holiday Group in Chester is seeking a Senior Data Scientist to design, build, and ship ML models that drive commercial performance across the group. You will own projects from framing through production, partner with product, commercial, and engineering teams, and ensure solutions are scalable and well-documented.

The role requires strong Python/SQL, hands-on modelling, and the ability to communicate insights to non-technical stakeholders.

Qualifications

Strong hands-on data science and ML experience, end-to-end model design and production deployment.
Advanced Python and SQL skills (including pandas, scikit-learn, XGBoost/LightGBM).
Experience in two or more areas: forecasting, segmentation, recommender systems, ranking, or behavioral modelling.
Proven delivery of ML projects from framing to production deployment.

Responsibilities

Design, build, and ship ML models addressing real commercial problems.
Collaborate with product, commercial, and engineering to scope problems.
Translate business challenges into well-scoped data science work.
Mentor other data scientists and promote code quality and reproducibility.
Maintain production models with monitoring, retraining, and governance.

Skills

Python

SQL

Pandas

Scikit-learn

XGBoost/LightGBM

Tools

Cloud ML

Experiment tracking

Feature stores

Job description

At Forge Holiday Group, we don’t just do holidays, we create memories. With market-leading brands like Sykes Holiday Cottages, Forest Holidays, and Bachcare in New Zealand, we’re 1,700+ strong and powered by four values: One Business One Team, Keep it Simple, Grow & Learn, Sustainable Impact.

What You Need To Know

Salary: Up to £70,000 per annum
Location: Chester HQ, Hybrid working.
Report To: Head of Data Science.
Team: Data Science.
Working Pattern: 37.5 hours (Monday to Friday, 9am until 5:30pm)

About the Senior Data Scientist Role

The Senior Data Scientist is a hands-on technical role responsible for designing, building, and shipping the machine learning models that drive commercial performance across the group. This role takes business problems through the full lifecycle - framing the problem, exploring the data,buildingandvalidatingmodels, and getting them reliably into production. The role combines deep technical delivery with clear communication, partnering with product, commercial, and engineering colleagues to make sure the work is grounded in real outcomes. We are looking for someone technically excellent and commercially aware, who writes high-quality code, makes sound modelling decisions, and helps raise the standard of how the team works.

What You’ll Do

Build & Deliver Impactful Solution

Design, build, and ship machine learning models that address real commercial problems, taking ownership of the work frominitialframing through to a validated solution in production.
Work closely with product, commercial, and engineering colleagues to scope problems well, contributing technical input early so the team commits to work that is bothfeasibleand valuable.
Translate business challenges into clear data science work, defining scope, success measures, and trade-offs in plain language.
Contribute to where data science can add the most value next - pricing, personalisation, forecasting,ownerand guest experience, and bring strong ideas to how those problems are approached.

Collaborate & Lead Technically

Act as a senior technical contributor, setting a high bar for code quality and modelling rigour to helpshape how the team approaches its work.
Communicate your work clearly: write up model behaviour and results, present inroadmapand review forums, and keep colleagues informed and confident in what the team is delivering.
Mentor less experienced data scientists through code review, pairing, and technical guidance, and act as a trusted point of contact for product, engineering, and commercial colleagues working with the team.

Run Reliable Models in Production

Keep the models you build running reliably in production: set up monitoring, alerting, and drift detection, track performance, and manage the retraining cadence that keeps them healthy.
Work to and help uphold the team’s standards for code review, model documentation, reproducibility, testing, and deployment, so quality stays consistent across the function.
Work with data engineering and platform teams onMLOpstooling andinfrastructure, andhelp respond to incidents affecting live models.

What You’ll Bring

Essential

Strong hands-on data science and ML experience, with the ability to design end-to-end models, write production-quality code, and make independent modelling and architecture decisions.
Advanced Python and SQL, including pandas, scikit-learn, and XGBoost/LightGBM.
Experience in at least two of the following: forecasting, segmentation, recommender systems, ranking, or behavioural modelling.
Proven delivery of ML projects end to end, from problem framing and exploratory analysis to production deployment.
Ability to translate business problems into well-scoped data science solutions, prioritising commercial impact over technical novelty.
Strong communicator, able to explain modelsand insights to non-technical stakeholders across product, commercial, and engineering teams.
Experience deploying and maintaining models (monitoring, retraining, MLOps).
Familiar with modern tooling (cloud ML, experiment tracking, feature stores) and scalable engineering practices.

Desirable

Experience in travel, hospitality, marketplace, or consumer platforms.
Familiar with pricing, demand forecasting, recommendations, or CLV modelling.
Practical experience with LLMs, agentic AI workflows, or applied generative AI in a production setting.
Experience with Microsoft Fabric, Azure ML, or equivalent cloud ML tools (e.g. AWS/ Azure).
Interest in responsible AI, explainability, and governance.

Forge Holiday Group Benefits

Annual bonus scheme based on company performance
33 days’ holiday(including bank holidays), plus up to 5 extra with long service.
Option to purchase extra holiday days if you wish.
A day off for your birthday
2 volunteering days per year.
Enhanced parental leave (24 weeks maternity, 3 weeks paternity at full pay).
Pension scheme with employer contributions
Discounted and last-minute stays at Forest Holidays and Sykes Cottages for you, your friends & family.
Special offers and discounts designed to enhance your overall wellbeing.
Health cash plan & life assurance.
Training & development opportunities.
24/7 mental health support.
On-site gym and parking at Chester HQ (near train station).
Employee savings scheme
Long service awards and company events