Lead Data Scientist

At Cotality, we are driven by a single mission—to make the property industry faster, smarter, and more people-centric. Cotality is the trusted source for property intelligence, with unmatched precision, depth, breadth, and insights across the entire ecosystem. Our talented team of 5,000 employees globally uses our network, scale, connectivity and technology to drive the largest asset class in the world. Join us as we work toward our vision of fueling a thriving global property ecosystem and a more resilient society.

Cotality is committed to cultivating a diverse and inclusive work culture that inspires innovation and bold thinking; it's a place where you can collaborate, feel valued, develop skills and directly impact the real estate economy. We know our people are our greatest asset. At Cotality, you can be yourself, lift people up and make an impact. By putting clients first and continuously innovating, we're working together to set the pace for unlocking new possibilities that better serve the property industry.

Job Description:

As a Lead Data Scientist at Cotality, you will be the technical authority responsible for solving our most complex predictive modelling challenges. You will guide the technical strategy for our core data products, which are used by major financial institutions across the UK, and will have the opportunity to make your mark on a new, ambitious data platform.

This role is about driving innovation and mentoring a talented team of data scientists to build best-in-class models. You will:

• Lead the design and implementation of advanced predictive models, applying sophisticated statistical and machine learning techniques to solve high-stakes business problems.
• Provide technical leadership and mentorship to fellow data scientists, elevating the team's capabilities and fostering a culture of excellence.
• Own the end-to-end model lifecycle, from initial R&D and prototyping through to deploying robust, scalable models into production pipelines.
• Partner with senior stakeholders across Product, Sales, and Leadership to translate complex business needs into elegant, effective analytical solutions.
• Champion best practices in model development, validation, and maintenance to ensure the quality and integrity of our analytical outputs.

Job Qualifications:

We are seeking an exceptional technical leader. We strongly encourage applications from candidates with a background in any industry that involves large-scale, complex predictive modelling.

Essential Experience:

• Extensive Data Science Experience: A proven track record (typically 8+ years) of developing and deploying high-impact machine learning models in a commercial environment.
• Deep Modelling Expertise: Expert-level knowledge of statistical analysis, predictive modelling, and a variety of ensemble techniques (e.g., Gradient Boosted Trees, Random Forests).
• Core Technical Proficiency: High proficiency in Python for data science (including libraries like Pandas, Scikit-Learn, XGBoost/LightGBM) and SQL.
• Large-Scale Data Expertise: Demonstrable experience working with very large, complex, and sometimes messy datasets to build effective models. Experience with geospatial data is a significant advantage but not required.
• Technical Leadership & Mentorship: Proven ability to act as a senior technical guide, mentor other data scientists, and lead the technical direction of complex projects.
• Strong Communication Skills: The ability to explain complex technical concepts to non-technical stakeholders and influence strategic decisions.

Desirable Experience:

• Domain Knowledge: Experience in PropTech (Property Technology), FinTech (Financial Technology), or the financial services/lending industry.
• AVM Experience: Specific, hands-on experience developing or deploying Automated Valuation Models for the property market.
• Regulatory Environment: Familiarity with model validation, performance benchmarking, and compliance metrics within a regulated industry.

• Time Away: Generous paid leave, 8 bank holidays, plus dedicated days for wellbeing and volunteering.
• Family Support: Up to 16 weeks of fully paid parental leave, along with a baby bonus to help you get started.
• Health & Wellbeing: Company-paid private medical cover, with mental health and wellness resources included.
• Retirement: Pension scheme with employer contributions.
• Financial Perks: £375 annual wellbeing allowance.
• Extras: Recognition rewards, referral bonuses, exclusive discounts, and more!

Cotality's Diversity Commitment:​

Cotality is fully committed to employing a diverse workforce and creating an inclusive work environment that embraces everyone’s unique contributions, experiences and values. We offer an empowered work environment that encourages creativity, initiative and professional growth and provides a competitive salary and benefits package. ​ We are better together when we support and recognize our differences.

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Equal Opportunity Employer Statement:​

Cotality is an Equal Opportunity employer committed to attracting and retaining the best-qualified people available, without regard to race, ancestry, place of origin, colour, ethnic origin, citizenship, creed, sex, sexual orientation, record of offences, age, marital status, family status or disability. Cotality maintains a Drug-Free Workplace. ​

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Please apply on our website for consideration.​

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By providing your telephone number, you agree to receive automated (SMS) text messages at that number from Cotality regarding all matters related to your application and, if you are hired, your employment and company business. Message & data rates may apply. You can opt out at any time by responding STOP or UNSUBSCRIBING and will automatically be opted out company-wide.