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Senior Data Scientist



Posted over 30 days ago...

Transform the Insurance Landscape as a Senior Data Scientist at Marshmallow


icon Salary

No salary declared 😔

icon Location

London, UK

icon Nomad Friendly?

In-person- London United Kingdom

icon Expires

Expires at anytime

Organisation summary

Marshmallow is a dynamic and innovative insurance company that challenges the status quo, focusing on providing fair insurance prices for individuals relocating to the UK. The company champions those often overlooked by traditional financial services by creating tailored solutions that make a significant impact on people's lives. Working at Marshmallow means being at the forefront of solving meaningful problems and backing those who dare to be different.

Role Summary

  • Enhance customer acquisition and retention strategies.
  • Optimize product presentation and pricing for new sign-ups.
  • Develop initiatives to increase customer loyalty and retention rates.
  • Collaborate with cross-functional teams to become a subject matter expert.

Role Requirements

  • Commercially minded with a focus on impactful delivery.
  • Effective communication skills across technical disciplines.
  • Proficiency in building scalable data models and analytics products.
  • Experience in developing ML models for specific business cases.
  • Strong coding skills in Python and SQL, with expertise in handling large data sets.
  • A minimum of 3-4 years of commercial experience.


  • Flexible office environment and benefits budget.
  • Personal development budgets for books and training.
  • Mental wellbeing support and company equity.
  • Private health care and medical cash plan.
  • Generous tech scheme and holiday allowance.
  • Pension, cycle to work scheme, and regular social events.

About Marshmallow We started Marshmallow when we found out how unfair insurance prices are for people who move to the UK. We saw an opportunity to do things differently, so we made it our mission to back the ones who step outside the norm. We serve people that are often overlooked by financial services companies, solving important problems for people who need it most.

The Role We’re looking for a Senior Data Scientist to help us push our acquisition and retention tribes to the next level. You will be improving how we present and price our different products when new customers are signing up, and working on how we can retain those customers for longer to drive up retention. You will work within a cross-functional team and become an expert in your area.

Job Requirements You have a commercial mindset, focused on delivering impact to the business as quickly as possible. You can communicate clearly with people of all technical levels and disciplines. You have experience building future-proof data models and analytics products, driving business action and impact from data-driven insights, and developing ML models to answer business cases. You have strong coding ability in Python, SQL and the ability to manipulate large data sets. You have at least 3-4 years commercial experience.

Benefits We offer a flexi-office working environment, a flexible benefits budget, personal budgets for books and training courses, mental wellbeing support, equity in Marshmallow, private health care, a medical cash plan, and a tech scheme. Plus all the rest; 33 days holiday (including bank holidays), pension, cycle to work scheme, monthly team socials and company-wide socials every month!


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