Senior Data Scientist

Gallagher
London
1 week ago
Applications closed

Related Jobs

View all jobs

Senior Data Scientist

Senior Data Scientist - Operational Research & Optimisation

Senior Data Scientist

Senior Data Scientist

Senior Data Scientist

Senior Data Scientist

Introduction

Join us at Gallagher Re, the trailblazers of the reinsurance world, where every day brings new opportunities to shape the future. We empower our clients with cutting-edge analytics and insights, providing them the confidence to make strategic decisions that transform industries. As a team member, you'll be at the forefront of innovation, translating data into impactful solutions and taking the reins of your career like never before.

We believe that every candidate brings something special to the table, including you! So, even if you feel that you’re close but not an exact match, we encourage you to apply.


Overview

We are seeking a talented Senior Data Scientist to join our Data Science team at Gallagher Re and help lead our Data Science work. You will be joining a newly established Data Science & AI Centre of Excellence within our Digital Products team.

We are looking for expertise in Python and Azure Machine Learning to develop data-driven solutions to address business challenges and create innovative digital products. The role is commercially focused and you will work alongside a team of experienced actuaries, brokers, data scientists, and product and delivery managers to create value for our client insurers through creation of innovative analytics and digital products.

This role is based from our London City office and we offer hybrid working and the expectation is to be in office two days per week.

How you'll make an impact

  • Develop and implement machine learning models using Python and Azure Machine Learning.
  • Migrate and operationalise models for flood, quake, climate, and hurricane predictions.
  • Support the development of our Cyber Technographic Insight Discovery Engine (TIDE).
  • Utilise classical machine learning techniques to build explainable models.
  • Contribute to our AI strategy and enhance internal data science capabilities.
  • Collaborate with cross-functional teams to drive data-driven innovation.
  • Write well-documented, tested, and readable code.
  • Conduct data analysis, cleaning, and visualisation to uncover insights.
  • Communicate findings effectively to both technical and non-technical audiences.

About You

  • Proven track record in data science at a senior level.
  • Strong Python programming skills and experience with Azure Machine Learning.
  • Understanding of classical machine learning and deep learning techniques.
  • Commercially focused with an interest in reinsurance and risk.
  • Excellent problem-solving, analytical, and communication skills.
  • Degree in Computer Science, Data Science, or related field, or equivalent experience.
  • Familiarity with cloud platforms, particularly Azure is preferred however experience with AWS and GCP will also be considered.
  • SQL knowledge is preferred.
  • Experience with deep learning frameworks and image analysis.
  • Knowledge of insurance industry, particularly pricing and risk selection.

Compensation and benefits

On top of a competitive salary, great teams and exciting career opportunities, we also offer a wide range of benefits.

Below are theminimum core benefitsyou’ll get, depending on your job level these benefits may improve:

  • Minimum of 25 days holiday, plus bank holidays, and the option to ‘buy’ extra days
  • Defined contribution pension scheme, which Gallagher will also contribute to
  • Life insurance, which will pay 4x your basic annual salary, which you can top-up to 10x
  • Income protection, we’ll cover up to 50% of your annual income, with options to top up
  • Health cash plan or Private medical insurance

Other benefits include:

  • Three fully paid volunteering days per year
  • Employee Stock Purchase plan, offering company shares at a discount
  • Share incentive plan, HMRC approved, tax effective, stock purchase plan
  • Critical illness cover
  • Discounted gym membership, with over 3,000 gyms nationally
  • Season ticket loan
  • Access to a discounted voucher portal to save money on your weekly shop or next big purchase
  • Emergency back-up family care
  • And many more…

We value inclusion and diversity

Inclusion and diversity (I&D) is a core part of our business, and it’s embedded into the fabric of our organisation. For more than 95 years, Gallagher has led with a commitment to sustainability and to support the communities where we live and work.

Gallagher embraces our employees’ diverse identities, experiences and talents, allowing us to better serve our clients and communities. We see inclusion as a conscious commitment and diversity as a vital strength. By embracing diversity in all its forms, we live out The Gallagher Way to its fullest.

Gallagher is Disability Confident Committed. We have pledged to make sure our recruitment process is inclusive and accessible, in addition to supporting our existing employees with any long-term health conditions or disabilities.

Should you require reasonable adjustments to your application, please get in touch with . If you’d prefer to speak on the phone, please request a call back, leaving details, so we get in touch.

Our employing entity, Arthur J. Gallagher Services (UK) Limited, is proud to be accredited as a Living Wage employer with the Living Wage Foundation. We are committed to diversity and opportunity for all and are opposed to any form of less favourable treatment on the grounds of gender or gender identity, marital status, civil partnership status, parental status, race, ethnicity, colour, nationality, disability, sexual orientation, religion/ belief, age and those with caring responsibilities.

Gallagher believes that all persons are entitled to equal employment opportunity and prohibits any form of discrimination by its managers, employees, vendors or customers based on race, color, religion, creed, gender (including pregnancy status), sexual orientation, gender identity (which includes transgender and other gender non-conforming individuals), gender expression, hair expression, marital status, parental status, age, national origin, ancestry, disability, medical condition, genetic information, veteran or military status, citizenship status, or any other characteristic protected (herein referred to as “protected characteristics”) by applicable federal, state, or local laws.

Equal employment opportunity will be extended in all aspects of the employer-employee relationship, including, but not limited to, recruitment, hiring, training, promotion, transfer, demotion, compensation, benefits, layoff, and termination. In addition, Gallagher will make reasonable accommodations to known physical or mental limitations of an otherwise qualified person with a disability, unless the accommodation would impose an undue hardship on the operation of our business.

  • Proven track record in data science at a senior level.
  • Strong Python programming skills and experience with Azure Machine Learning.
  • Understanding of classical machine learning and deep learning techniques.
  • Commercially focused with an interest in reinsurance and risk.
  • Excellent problem-solving, analytical, and communication skills.
  • Degree in Computer Science, Data Science, or related field, or equivalent experience.
  • Familiarity with cloud platforms, particularly Azure is preferred however experience with AWS and GCP will also be considered.
  • SQL knowledge is preferred.
  • Experience with deep learning frameworks and image analysis.
  • Knowledge of insurance industry, particularly pricing and risk selection.
  • Develop and implement machine learning models using Python and Azure Machine Learning.
  • Migrate and operationalise models for flood, quake, climate, and hurricane predictions.
  • Support the development of our Cyber Technographic Insight Discovery Engine (TIDE).
  • Utilise classical machine learning techniques to build explainable models.
  • Contribute to our AI strategy and enhance internal data science capabilities.
  • Collaborate with cross-functional teams to drive data-driven innovation.
  • Write well-documented, tested, and readable code.
  • Conduct data analysis, cleaning, and visualisation to uncover insights.
  • Communicate findings effectively to both technical and non-technical audiences.

#J-18808-Ljbffr

Get the latest insights and jobs direct. Sign up for our newsletter.

By subscribing you agree to our privacy policy and terms of service.

Industry Insights

Discover insightful articles, industry insights, expert tips, and curated resources.

AI Jobs at Newly Funded UK Start-ups: Q3 2025 Investment Tracker

Over the last decade, the United Kingdom has firmly established itself as one of Europe’s most significant technology hubs. Thanks to a vibrant ecosystem of venture capital, government-backed initiatives, and a wealth of academic talent, the UK has become especially fertile ground for artificial intelligence (AI) innovation. This growth is not just evident in established tech giants—new start-ups are emerging every quarter with fresh ideas, ground-breaking technologies, and a drive to solve real-world problems. In this Q3 2025 Investment Tracker, we take a comprehensive look at the latest AI start-ups in the UK that have successfully secured funding. Beyond celebrating these companies’ milestones, we’ll explore how these recent investments translate into exciting new job opportunities for AI professionals. Whether you’re an experienced machine learning engineer, a data scientist, or simply hoping to break into the AI sector, this roundup will give you insights into the most in-demand roles, the skills you need to stand out, and how you can capitalise on the current AI hiring boom.

Portfolio Projects That Get You Hired for AI Jobs (With Real GitHub Examples)

In the fast-evolving world of artificial intelligence (AI), an impressive portfolio of projects can act as your passport to landing a sought-after role. Even if you’ve aced interviews in the past, employers in AI and machine learning (ML) are increasingly asking candidates to demonstrate hands-on experience through the projects they’ve built and shared online. This is because practical ability often speaks volumes about your suitability for a role—far more than any exam or certification alone could. In this article, we’ll explore how to build an outstanding AI portfolio that catches the eye of recruiters and hiring managers, including: Why an AI portfolio is crucial for job seekers. How to choose AI projects that align with your target roles. Specific project ideas and real GitHub examples to help you stand out. Best practices for showcasing your work, from writing clear READMEs to using Jupyter notebooks effectively. Tips on structuring your GitHub so that employers can instantly see your value. Moreover, we’ll discuss how you can use your portfolio to connect with top employers in AI, with a handy link to our CV-upload page on Artificial Intelligence Jobs for when you’re ready to apply. By the end, you’ll have a clear roadmap to building a portfolio that will help secure interviews—and the AI job—of your dreams.

AI Job Interview Warm‑Up: 30 Real Coding & System‑Design Questions

In today's competitive AI job market, nailing a technical interview can be the difference between landing your dream role and getting lost in the crowd. Whether you're looking to break into machine learning, deep learning, NLP (Natural Language Processing), or data science, your problem-solving skills and system design expertise are certain to be put to the test. AI‑related job interviews typically involve a range of coding challenges, algorithmic puzzles, and system design questions. You’ll often be asked to delve into the principles of machine learning pipelines, discuss how to optimise large-scale systems, and demonstrate your coding proficiency in languages like Python, C++, or Java. Adequate preparation not only boosts your confidence but also reduces the likelihood of fumbling through unfamiliar territory. If you’re actively seeking positions at major tech companies or innovative AI start-ups, then check out www.artificialintelligencejobs.co.uk for some of the latest vacancies in the UK. Meanwhile, this blog post will guide you through 30 real coding & system-design questions you’re likely to encounter during your AI job interview. This list is designed to help you practise, anticipate typical question patterns, and stay ahead of the competition. By reading through each question and thinking about the possible approaches, you’ll sharpen your problem-solving skills, time management, and critical thinking. Each question covers fundamental concepts that employers regularly test, ensuring you’re well-equipped for success. Let’s dive right in.