Meet The Team

Brad Rees

Chief Executive Officer

I have worked in media, sport and telecoms sectors at local and international levels since day. I founded Mediacells with Steve to enable global companies to deliver against their digital media strategies.

I am a strategic thinker, skilled at delivering practical routes to market for new products, services and campaigns.

I love collaborations and most recently I’ve been engaged with the Visual and Experience Design department of the University of Applied Sciences in Berlin focussing on future visual designs.

I led the roll-out of the Deutsche Telekom MMS Picture Messaging service in the UK, the first network to offer photo sharing to its interconnected customer base. BradCRees

Steve Moss

Chief Operating Officer


I am an information and product development expert with experience of working collaboratively across control systems engineering, mobile telecom operators, service consultancy, medical research start-ups and media organisations at global levels.

My specialism is in product and service design, based on established, emerging and latent user-centric behaviours to maximise commercial potential.

I led One-to-One’s GoalLine & Java Games services the first UK real-time football SMS and mobile games services. Steve has a proven record of recruiting, leading & motivating teams to deliver projects over scope, on time and under budget.

Stephen Nex

Lead Data Scientist


I am an award-winning film and TV drama development executive who decided to transform his media experience to data science.

I have 14 years experience of working in fast-paced, dynamic creative media environments where he had roles as lead script editor at Channel 4 TV and as head of development at independent European film producer, Sigma Films.

While studying Data Science at Stanford University, I produced white papers and data visualisations on Statistical Learning in R and Machine Learning in Matlab.

I hold a first-class honours degree from Leeds University in Chemistry and brings a passion for data analysis, statistical modelling and visualisation as well as a flair for insightful problem solving.

I am Mediacells’ data science lead for statistical modelling, social media listening, OTT metrics, performance analysis and interface design.

Andrew Martyn

Data Architect


My instincts for how emerging technologies can benefit the businesses we work with was formed as a design engineer for Plessey Defense Systems and product development engineer with Siemens Electronics.

My milestone achievement occurred when I acquired a patent on a GPS-guided tourist information system, which is now recognised as the Sat Nav.

I bring analytical expertise in design and development services and 20 years’ experience of working in large, disparate organisations.

Matt Blaker

Transactional Data Specialist


I am an expert coder, specialising in Python, R, SQL, Snowflake & Alteryx languages.

I bring five years experience in banking and real-time transactional analytics to the Mediacells team, having worked as a fraud analyst for the Nationwide Building Society after graduating from Manchester University.

My passion is data science and since working at Mediacells I have obtained a Master’s degree in Computer Science.

I am currently applying my knowledge of sentiment analysis to machine learning techniques as part of a Mediacells-sponsored innovations project.

Neil Morgan


I bring strategic and commercial expertise to Mediacells.

I am also Managing Director of the world’s leading supplier of exhaust systems to Formula 1 and NASCAR, with operations in Oxfordshire, UK and North Carolina, USA.

I am a member of the Silverstone Technology Cluster and I regularly participate at international motorsport events and conferences in the US and Europe.