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The mSeller team.

A collaboration harnessing the unique expertise of two partners Computoy and Williams Commerce, both specialists in their field.


Robert Williams

Robert Williams

Managing Director - Williams Commerce

Rob worked for Mars and Exxon Mobil before establishing Williams Commerce in 2009.  Rob’s knowledge of ecommerce and mobile app technology helped establish the mSeller infrastructure.

Stephen Langham

Stephen Langham

Managing Director - Computoy

Founder of Computoy in 1996, Steve has over 20 years experience working with sales teams which has led to the creation of the mSeller app and its rich functionality.

Keri Williams

Keri Williams

Marketing Director - Williams Commerce

Over 15 years experience in marketing for Lion Nathan and Diageo plc, Keri co-founded Williams Commerce in 2009 and heads the  marketing & creative department.

Ellis Sharman

Ellis Sharman

Project Manager - Computoy

Ellis, a University of Hertfordshire graduate, joined Computoy in 2011 as project manager, handling designs, support and training front-end users.

Simon Hartley

Simon Hartley

Integration Mgr - Williams Commerce.

Simon joined Williams Commerce in 2012 as a senior Integration Project Manager and has responsibility for systems integration and I.T support.

Krzysztof Janusz

Krzysztof Janusz

Infrastructure - Williams Commerce

Krzysztof joined Williams Commerce as infrastructure analyst and is responsible for management of the data centre and server builds.

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