Full-Time

Principal Data Scientist

Posted on 11/23/2025

Hiscox

Hiscox

1,001-5,000 employees

Specialized insurer for high-net-worth risks.

No salary listed

London, UK + 1 more

More locations: York, UK

In Person

Category
Data & Analytics (1)
Requirements
  • Bachelor's/Master's degree in a quantitative field (e.g., Computer Science, Statistics, Mathematics, Physics, Engineering) or equivalent
  • Extensive professional experience in data science, with a proven track record of technically leading and successfully delivering complex, impactful, and production-grade data science solutions
  • Demonstrated capacity for independent, high-quality research and exploratory data analysis, with the ability to develop and apply novel methodologies to solve ill-defined and challenging business problems
  • Proven ability to design, implement, and maintain robust technical frameworks for evaluating commercial impact
  • Proven ability to technically mentor data scientists, fostering best practices, elevating technical standards, and contributing to the overall technical growth of the team
  • Strong understanding and practical experience with Agile development methodologies and software engineering best practices (e.g., version control, comprehensive testing, modular code) relevant to data science product delivery
  • Ability to articulate complex technical findings and methodologies into clear, concise, and actionable insights for diverse audiences, effectively influencing technical and non-technical stakeholders to drive data-driven decision-making and solution adoption
  • Demonstrable experience collaborating effectively with cross-functional teams (e.g., engineering, product, business stakeholders) to translate business challenges into robust technical requirements and ensure seamless delivery
  • Key Technical Skills: Exceptional proficiency in Python (and R) for data science, coupled with SQL capabilities for data manipulation and extraction
  • Key Technical Skills: Demonstrable mastery in a wide range of machine learning and statistical modelling techniques, from classical linear models and tree-based methods to advanced deep learning architectures
  • Key Technical Skills: Practical experience with, or demonstrable capability for, applications of Generative AI, Large Language Models (LLMs), and related areas such as Natural Language Processing (NLP) or Computer Vision, relevant to business solutions
  • Key Technical Skills: Solid understanding of foundational statistics and experimental design
  • Key Technical Skills: Familiarity with or experience on cloud platforms
  • Desirable: Background in data science within finance or insurance is advantageous but not required
  • Desirable: Opportunities for informal or formal guidance of team members development, potentially leading to line management responsibilities down the line
Responsibilities
  • Utilise industry standards, emerging methodologies, and empirical research to develop critical business inputs and assist leaders in innovating their approaches
  • Technically lead the end-to-end delivery of our most complex data science initiatives, encompassing:
  • Strong understanding of intricate business challenges and translation into technical problem statements
  • Working with diverse datasets, both internal and external
  • Expert application and development of advanced machine learning or statistical modelling techniques to generate actionable insights and deliver measurable impact
  • Provide hands-on technical mentorship and guidance to junior and mid-level data scientists, fostering best practices, elevating technical standards, and cultivating advanced skill development within the team. As the team grows and matures, this role may also offer opportunities for informal or formal guidance of team members development, potentially leading to line management responsibilities down the line
  • Engage closely with other members of the data and analytics community at Hiscox to deliver value through various analytics techniques, sharing advanced knowledge and driving the adoption of robust analytical capabilities
  • Design, implement and maintain robust technical frameworks for monitoring, evaluating and quantifying the commercial impact and efficiency of data science solutions, ensuring continuous value demonstration
Desired Qualifications
  • Background in data science within finance or insurance is advantageous but not required
  • Opportunities for informal or formal guidance of team members development, potentially leading to line management responsibilities down the line

Hiscox is a specialized insurer that focuses on high-net-worth individuals and complex, niche risks (including fine art, kidnapping, and other unconventional coverages). It underwrites and issues insurance policies through its global operations, built on Lloyd's heritage and expanded after re-domiciling to Bermuda to operate in 13 countries. Its products work by assessing and underwriting tailored insurance contracts for specific, often hard-to-place risks, with coverage and claims handling aligned to the insured’s needs. The company differentiates itself from competitors by concentrating on specialized, hard-to-place risks rather than mass-market insurance, maintaining independence, and leveraging deep underwriting expertise and a global footprint. Its goal is to grow as a focused, independent specialist insurer that serves ambitious clients worldwide and expands its geographic reach and capabilities.

Company Size

1,001-5,000

Company Stage

IPO

Headquarters

London, United Kingdom

Founded

1901

Simplify Jobs

Simplify's Take

What believers are saying

  • Attracted $1B ILS capital in Q1 2026, growing AUM to $2.4B in catastrophe bonds.
  • Retail premiums rose 10.2% to £1.7B in Q1 2026, driven by 8% US and UK growth.
  • Acquires US insurtech Vouch and launches Cargo API on June 30, 2025 for digital underwriting.

What critics are saying

  • Softening cat reinsurance rates cut net premiums 5.6% in Q1 2026, eroding Hiscox Re margins.
  • Pen-Zurich-Hiscox partnership floods UK non-standard home capacity, slashing quirky property premiums.
  • Vouch acquisition triggers regulatory delays and integration failures within 3-6 months.

What makes Hiscox unique

  • Hiscox specializes in insuring complex risks like fine art and kidnapping since 1970s.
  • Roots in Lloyd's of London since 1901 enable underwriting non-standard marine and specialty lines.
  • Focuses on high-net-worth quirky UK homes via April 2026 Pen-Zurich partnership.

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Benefits

Flexible Work Hours

Hybrid Work Options

Company News

Yahoo Finance
Feb 25th, 2026
Hiscox posts record profit of $733M as retail segment drives growth with 7.5% customer increase

Hiscox reported record profitability for 2025, with group insurance contract written premiums rising 5.9% to $275 million year-on-year. The insurer's undiscounted combined ratio improved to 87.8%, its best in a decade, driving a record insurance service result of $614 million. Profit before tax reached a record $733 million, up 6.9%, whilst operating return on tangible equity stood at 20.9%. Investment results hit $443 million, supported by strong yields and higher assets under management. Retail premiums grew 6.3% in constant currency to over $2.6 billion, driven by 7.5% customer growth rather than pricing. The London Market returned to growth with premiums up 1.6%, maintaining its undiscounted combined ratio in the 80s for the sixth consecutive year. Management emphasised underwriting discipline and product innovation across the diversified portfolio.

Hiscox
Aug 14th, 2025
Hiscox appoints new Group Head of Technical Claims

London, UK (14 August 2025): Leading global specialist insurer, Hiscox, today announces the appointment of Matthew Budd to the newly created role of Group Head of Technical Claims.

Insurance Journal
Aug 6th, 2025
Hiscox Agrees to Acquire US Specialist Insurtech

As part of the transaction, Hiscox is acquiring Corix Insurance Services LLC and Vouch Insurance Company from Vouch Inc. subject to customary conditions and regulatory approvals.

Hiscox
Jun 30th, 2025
Hiscox launches Cargo API for small cargo and stock throughput risks

London, UK (30 June 2025): Leading global specialist insurer, Hiscox, has launched a new Cargo API (application programming interface) based solution, available through broker partners for underwriting small cargo and stock throughput risks.

Reinsurance News
Jun 16th, 2025
Hiscox appoints Harriet Hanna as COO of Lloyd's managing agent HSL

Based in London and reporting to Hiscox London Market CEO Kate Markham, Hanna succeeds Adam Rushin, who is retiring after more than 25 years of distinguished service with Hiscox.

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