Team Criton

At Criton you will meet a friendly and professional team, on hand to support you throughout your journey with us.  Meet some of Team Criton below!


Julie Grieve

Founder & CEO

Julie's mission in life is to help independents embrace guest facing technology which can revolutionise their guest experience and their operations, reducing cost and increasing revenue.

Cedric Clain

Head of Engineering

In search of a new challenge, Cedric joined Criton after completing his Masters in Artificial Intelligence at the University of Edinburgh. He loves technology, music, and is an aspiring pianist.

Susan Russell Criton's Head of Marketing

Susan Russell

Head of Marketing

Susan leads the marketing team in driving Criton's global ambitions.  She has over fifteen years experience in marketing roles including promoting Edinburgh’s Festivals and at VisitScotland.

Steven Sibbald Criton's Head of Commercial

Steven Sibbald

Head of Commercial

Steven joined Criton as P/T Head of Commercial. Steven is an entrepreneurial senior exec with a proven track record of delivering profitable commercial growth & digital leadership in tech startups.

Ron Crawford Criton's Talent Acquisition & Operations

Ron Crawford

Talent Acquisition & Operations

Ron made the move to internal recruitment having spent 11 years recruiting for a number of agencies in Edinburgh. In his first year with the business he has helped grow the team from 6 staff to over 30.

Innes Chambers Criton's CFO

Innes Chambers

Chief Finance Officer (P/T)

Experienced finance director, Innes Chalmers worked with Coopers & Lybrand, Dell Computers and Abbey Business Centres managing the companies’ large budgets. He also worked as a freelance finance director with clients in the property and hospitality sector.

Jo Wilson Criton's Head of Sales

Jo Wilson

Business Development Manager - England

Before joining Criton Jo ran her own Business Development company and brings a wealth of experience in the Hospitality industry with her. 

Sadiah Mir Criton's Business Development Manager

Sadiah Mir

Business Development Manager - Scotland

Eager to join the start up community, Sadiah joined in January 2018 having working with a number of technology companies.

Karina Ogunyemi Criton's Business Development Manager

Karina Ogunyemi

Business Development Manager - London

Karina joined Criton in January 2018 after 3 years of working in hospitality and travel technology events. It is here where she found her passion for the industry.

Louis Pernet Criton's Marketing Executive

Louis Pernet

Senior Marketing Executive - Digital

Louis joined Criton in February 2017 and deals with creating content for users and visitors. Prior to that, he worked for a French startup in New York. Louis is also passionate about tennis.

Valerie Lederer Criton's Marketing Executive

Valerie Lederer

Marketing Executive - Campaigns

Valerie is responsible for integrated marketing campaigns.  She previously worked for an Engineering & Manufacturing start-up and has a background in the IT & Hospitality industry.

Stefano Modica Ragusa Criton's Marketing Executive

Stefano Modica Ragusa

Marketing Executive - PR & Events

With a strong background in marketing & PR roles, Stefano’s focus is to maximise opportunities for brand exposure and raise the company profile through events attendance & PR activity. 

Christian Dixon

Customer Success Executive

Christian joined from Amazon in search of a new challenge. With a background in hospitality management & customer tech support roles, he is enjoying the challenge of learning new design skills to get ideas developed.

Alan Hannah

Development Manager

Alan joined Criton in March 2018 after four and a half years as a software developer at a digital marketing agency in search of a new and exciting challenge. Alan loves to cook when he isn't programming. 

Craig Parker

Tech Operations Lead

Craig is a hands-on Operations/Infrastructure architect with over 20 years experience. He has a passion for scalability & high availability and is here to make sure the site is up and running.

Rob Gathergood

Product Owner

Rob is the Product Owner for the integrations team, working with 3rd party technologies to improve Criton’s product offering. Rob joined in June 2018 as a Junior Software Developer. He previously worked in the Aerospace industry as a Project Manager.

Manfredi Pumo

UX/UI Designer

Manfredi joined Criton in September 2018 as a Product Designer, after having worked as an UX/UI Designer for several companies. He likes to solve complex problems, and thinks that design can be a pretty good way to do that!

Connor McGill

Tech Lead - App

Connor is a Senior Software Developer who has worked in a number of sectors for the last decade or so. From designing, project managing and building data entry systems for clinical trials at the University of Edinburgh to bespoke websites and apps for a marketing and design company. He also a wise but cruel Game Master for his tabletop roleplaying group in his free time.

Andy Barratt

Tech Lead - CMS

Andy joined with nearly six years of experience working as a front-end developer with a background in UX, by night, however, he’s an amateur political cartoonist and though he can’t play the piano particularly well, that doesn’t stop him trying.

Michal Dacko

Software Developer

Michal started in November 2017. Before working at Criton, he was a mechanical engineering student with a passion for developing software.

Gordon McIntyre

Software Developer

Gordon joined Criton in November 2017 after graduating from CodeClan and then spending 1 year as the mobile developer for a local Web Development company.

James Wood

Software Developer

James started at Criton in February 2018. He loves music, especially when it’s live, and plays the ukulele in his spare time.

Sibin Bhasuran

Software Developer

Sibin has been developing diverse web applications in Microsoft technologies for variety of clients over 12 years. He previously worked in an offshore development centre in India for a New York based software development company. Other than programming he is really into badminton and also interested in drawing.

Rachel Johnson

Software Developer

Rachel joined Criton in June 2018 as a junior software developer following a decision to seek out a new and exciting career in tech following 5 years working as a pensions actuary. When Rachel's not playing about with code, she enjoys playing korfball and netball and walking in Scotland's beautiful countryside.

Daniel Peet

Software Developer

Before joining Criton, Dan was a scientist who researched bio-molecular motors and wrote code to automate tasks around the lab. He's a fan of obstacle course racing and ultimate frisbee.

Zsolt Podoba-Szalai

Software Developer

After 2,5 years of working as an instructor at CodeClan, Zsolt joined Criton seeking new challenges. Prior to moving to Scotland from Hungary, he used to be a radio DJ, high school teacher and also worked in the oil industry.

Joseph Liu

Software Developer

Joseph is a senior software engineer in the integration team. He is interested in everything about writing the code and contributing to the open source project. At the moment, he is the maintainer of the python implementation of a probabilistic model called Pybloom (open resource). When he is not coding, he is doing maths - he is primarily interested in the operational research.

Seppo Tamminen

Software Developer