Our Team

Please give us a call or email if you want to talk about any of our services,
or if you like really good coffee and are close by, why not come in and see us?

Photo of Richard Hull

Richard Hull

Managing Director

Richard has a long history of technology innovation and business development. Before co-founding Calvium in 2009, he led pioneering work in locative media and Do-It-Yourself mobile app building at Hewlett-Packard Research Laboratories. Richard holds a DPhil in Computer Science from Sussex University and has authored many publications and patents. Away from work, he is an enthusiastic community choir singer.

Photo of Jo Reid

Jo Reid

Sales & Marketing Director

Jo heads up the consultancy side of Calvium offering expertise in mobile experience design, in particular location and context aware applications. Jo was formerly a senior researcher at Hewlett-Packard Laboratories specialising in mobile location aware experiences or mediascapes. Jo has also previously worked for Texas Instruments and Xerox.
She holds an MBA, a BSc in Computer Science and is currently working on a PhD researching how people make sense of pervasive technologies and environments.

Photo of Ben Clayton

Ben Clayton

Technical Director

Ben has worked as a Research Assistant in the Computer Science department of Bristol University on the Mobile Bristol project. He holds a MEng in Computer Science from Bristol University.

Photo of Tom Melamed

Tom Melamed

Product Director

Tom has been a researcher at Hewlett-Packard Laboratories, a Research Assistant at Bristol University and an engineer for a smart card solutions provider and was one of the developers of mscape and Mobile Bristol. He specialises in mobile client development, sensor development and integration, and occasionally talks at tech-events like openMIC. He holds an MSc in Computer Science and a BSc in Physics.

Photo of Charlotte Harman

Charlie Harman

Marketing & Operations Manager

Charlie has a wealth of knowledge in both digital and more traditional marketing practices. She specialises in blogging, copywriting and social media management and holds a first class degree from The University of The West of England and is an active member of CIM. Also head of operations, Charlie oversees much of the office admin and acts as a first point of contact for many of our clients.

Photo of Chris Price

Chris Price

Graphic Designer

Chris is equipped with an array of skills ranging from motion, interactive and web design to illustration, book making and screen printing. Well practised in designing for mobile, he has provided the graphics for many of the apps that Calvium has produced, including; Boardwalk Stories, Jeg Er Nørrebro and The City of London AppTrail.

Photo of Pablo Carrillo

Pablo Carrillo

iOS Developer

Pablo has been working in mobile development for a number of years, focusing on iOS platforms and REST API. He holds a 5 year degree in Telecommunication Engineering, focused on telematics, from the Universidad de Sevilla in Spain. He has a special interest in mobile communications, networking and devices.

Photo of Matt Votsikas

Matt Votsikas


Matt has extensive knowledge of both frontend and backend web development, with proficiency in technologies such as PHP, JavaScript and Node. At Calvium, he is responsible for ensuring the company’s web-based platforms like AppFurnace provide great services for users. He holds a First Class BSc in Web Development from Staffordshire University, where he also ran his own company developing web sites and services.

Photo of Kieron Gurner

Kieron Gurner

Website and Mobile Developer

Kieron’s worked as a freelance web designer and developer in Bristol for five years, working primarily with clients in the creative industries. Kieron works on hybrid app development, the Calvium and AppFurnace websites and provides support to AppFurnace users. His skills include HTML, CSS, JavaScript, PHP & MySQL, Photoshop, InDesign and Illustrator

Join our team

We're currently seeking to fill the following positions:

Android Developer

iOS Developer

JavaScript (Mobile) Developer

Get in Touch

If you're interested in hearing more about how co-creation builds a better app, give us a call or email us and we'll get right back to you