Leading experts in data science training solutions.

Jumping Rivers has delivered quality data insights from day 1. Based in Newcastle and founded in 2016, the company is bringing a fresh approach to the world of data analytics. Our trainers and consultants come with over 40 years combined experience in R, Python, Stan, Scala and other programming languages. We have worked with some of the largest (and smallest) companies in the world.


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Esther Gillespie


Esther makes Jumping Rivers tick. Her goal is to help clients plan for the future. This means ensuring that what happens now, fits into their big picture.

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Dr Colin Gillespie

Project Manager

Colin has been using R since 1999. He's the author of a number of R packages and has published the book Efficient R Programming with O'Reilly.

Dr Jamie Owen

Lead Trainer

Jamie Owen has been teaching R since 2011. He has taught courses at a variety of Universities, government agencies and some of the largest UK companies.

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Theo Roe

Data Scientist

Theo holds a 1st Class Honours MMathStat in Mathematics & Statistics from Newcastle University. He is the author of many of the Jumping Rivers courses and works with a range of clients.

Sebastian Mellor

Data Engineer

Sebastian has a 1st Class Honours MMathStat in Mathematics & Statistics from Newcastle University. He has multiple publications on machine learning, sensor deployments and infrastructure, and data visualisation.

Dr Rhian Davies

Data Scientist

Rhian loves using statistics to help people make data driven decisions. As a data scientist, she has worked closely with varied domain experts including physicists, psychologists, game designers and engineers.

Anmol Hussain

Finance Officer

Anmol holds a BA hons in Accounting and Financial Management, with ACCA and CIMA exemptions and a degree in Msc International Financial Analysis. He takes responsibility for the company's financial administration, whilst interacting with clients

Deborah Washington

Project Operation Manager

Deborah is responsible for Jumping Rivers' office support. As Admin Manager, Deborah works across the organisation, to deliver customer requirements and assist the team's daily objectives.

Jack Walton

Data Scientist

Jack is working towards a PhD in mathematics at Newcastle University. He is devoted to sharing his knowledge and is a regular contributor on Stack Overflow. In addition, Jack enjoys creating insightful visualisations.

John McIntyre

Data Scientist

John holds a 2:1 Statistics degree from Newcastle University. He is a Data Scientist who uses statistical methods in computer programs such as R, to help clients benefit from the data they possess.

Andrew Patterson

Data Engineer

Andrew has gone from studying Maths and Physics at university, to network and server engineering, to a programmer role and then into DevOps and automation work.

Jack Hannah

Data Scientist

Jack has a degree in Statistics from the University of Glasgow. He previously worked as a data analyst within the public sector and is interested in using R to replace repetitive tasks with reproducible processes.

Liam Kalita

Data Engineer

Liam holds a Computer Science degree from Northumbria University. He has worked within junior DevOps and Web Development roles since 2018. He is currently studying towards an Msc in Cyber Security.