Lead Data Scientist, Mastercard

Salary not provided
Python
Kafka
Tensorflow
Pandas
Scikit-Learn
Next
Senior and Expert level
London

Office located in Angel Lane, London

Mastercard

Global payments technology company

Job no longer available

Mastercard

Global payments technology company

1001+ employees

FintechB2CB2BBankingPaymentsCredit cards

Job no longer available

Salary not provided
Python
Kafka
Tensorflow
Pandas
Scikit-Learn
Next
Senior and Expert level
London

Office located in Angel Lane, London

1001+ employees

FintechB2CB2BBankingPaymentsCredit cards

Company mission

To connect and power an inclusive, digital economy that benefits everyone, everywhere by making transactions safe, simple, smart, and accessible.

Role

Who you are

  • Your passion is focused on the design of algorithms to solve real, pressing problems using data
  • You will have an interest in the financial services industry and want to tackle financial crime in the wider economy
  • You are excited by building products for clients and are keen to engage in the design processes this involves
  • You can write Python to a high standard and are familiar with the standard data science libraries such as pandas, scikit-learn and networkx
  • You are capable of developing new algorithms in novel situations and can demonstrate previous work to evidence this
  • You are keen to understand the data we work with and have a keen interest in how to model the behaviours it exposes
  • You are able to communicate with non-tech colleagues about technical matters, and you are comfortable putting yourself in other people's shoes
  • You are happy and excited to explore new programming languages, technologies, and techniques
  • You have a can-do attitude, can be pragmatic where necessary, and are excited to work as part of a specialist team. You can engage in constructive criticism and aren't afraid to have your code reviewed

Desirable

  • Practical experience using streaming technologies, including streaming platforms (e.g. Kafka), online algorithms (e.g. stochastic gradient descent), and fixed-memory data structures (e.g. Bloom Filters)
  • Experience using next generation machine learning techniques and tools, including Deep Neural Networks and TensorFlow
  • Exposure to Network Theory, especially social network analysis and graph diffusion analysis. Ability to build custom data visualisations, prototype browser based UX/UI, and the server side microservices to support them

What the job involves

  • As a Data Scientist, you will join one of the first teams in the world looking at payments data in the UK and across the world
  • In the research discipline you will help build systems that expose money laundering and detect fraud as well as work with the other data scientists and clients to understand the underlying behaviours employed by criminals
  • You will be product focused, working in close collaboration with our engineering and operations data scientists as well as the wider sales, consulting, and product teams
  • Perform proof-of-concept projects, engage in product design and build prototypes
  • Use the full range of data science based techniques to develop new and novel algorithms to aid existing and new financial crime products
  • Be able to perform novel research to help us and our clients understand the different criminal behaviours in payments data
  • Think about how derived insights can be turned into new products and services we can offer to external clients
  • Be ready to learn new technologies as required and engage with legacy and future technology stacks, in the UK and internationally
  • Write white papers, patents, and client facing data visualisations
  • Consider the full impact of your work. This means considering privacy, security, and regulation, as well as the performance of your code and the accuracy of your models

Salary benchmarks

Otta's take

Xav Kearney headshot

Xav Kearney

CTO of Otta

Mastercard is in the global payments business, and operates the world's fastest payments processing network. Its products and solutions have become central to everyday commerce across the world, in activities ranging from shopping and travelling to running businesses.

As the economy has become more and more digitised, Mastercard has been a leading player in helping businesses and individuals across the globe embrace card payments and digital banking. One of the world's largest companies, its revenue has seen consistent gain in the last 20 years.

The challenge for modern payments companies is that payments are always changing, as seen in the astronomical rise of contactless payments over the last decade. Mastercard's acquisition of blockchain systems, and an overall focus on leveraging its technology towards a digital economy, has placed the company in good stead to keep up to date with current trends, like cryptocurrency, in the digitised payments world.

Insights

Some candidates hear
back within 2 weeks

21% employee growth in 12 months

Company

Company benefits

  • Gym membership
  • Share purchase options
  • Extra holiday purchase optional
  • Work from home opportunities
  • Health insurance
  • Pension plan
  • 25 days holiday (excl. bank holidays)

Company values

  • Trust - integrity, respect, openness
  • Agility - urgency and value through innovation
  • Partnership - working as one team for the benefit of all
  • Initiative - taking bold and thoughtful actions

Company HQ

Purchase, Harrison, NY

Founders

Michael Miebach

(CEO, not founder)

Has served in a variety of roles at the company, including President and CPO. Currently Board Member at IBM, Accion, the World Resources Institute, the US-India Strategic Partnership Forum, and the Metropolitan Opera. They are also a Trustee of USCIB.


People progressing

Joined as VP in 2008, promoted 4 times in 11 years to their current position of Executive Vice President.

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