About Us

HTI Labs was established five years ago with the intention of bringing new perspectives to challenges both within finance and other industries. The common theme was innovation and taking best of breed solutions in an industry and taking those concepts in to new areas.

The Directors come from an investment banking background and were building front office risk systems that handled very large data sets and massive calculation farms. It's fair to say that we were working on ‘Big Data’ and 'Cloud' challenges before the terms were invented. Since then the team has grown with experience across industries.

We have worked on initial idea generation, architecture and through the entire development life-cycle. We've experienced substantial growth over the last year and have successfully delivered results on all the projects we have been engaged in.


Where we work

We are London based but have worked internationally for substantial periods. Working with us can be both onsite with clients and/or offsite in our facilities. Increasingly clients have been confident in our reliable delivery approach and have asked us to carry on development whilst giving some of their desks back!

If you're not sure whether we can help please contact us and we'll be in touch to discuss it with you.

Meet the team

Darren Harris


During his twelve years at Credit Suisse Darren was Vice-President as well as a member of the IT Derivatives Management team and the EMEA IT Developer Oversight Committee. Prior to this he spent nine years leading development teams on the building of Risk and P&L applications for the Interest Rate and Equity Derivatives front office trading divisions.

In 2009 he was asked jointly to accept the Banking Technology Magazine award for “Best Trading System Achievement” on behalf of Credit Suisse for his team’s contribution to the globally strategic risk system.

Darren holds a BSc (Hons) degree in Computer Science from the Sussex University. He also happens to own a 1981 DeLorean which he converted with a friend to an exact replica of the DeLorean time machine from the film Back To The Future.

Jonathan Glass


Prior to co-founding HTI Labs and Schematiq, Jonathan enjoyed five years with Credit Suisse where he rose to Vice-President and was critical to the transformation of the interest rate trading and risk management systems from a spreadsheet-based cottage industry into a highly scalable, regulatory-compliant platform.
This was preceded by three years as an analyst with Merrill Lynch Investment Managers followed by a spell at BNP Paribas, where he worked with the Equities business and the bank’s interest rate exotics platform.
Jonathan holds an MEng from Cambridge University and is also a Chartered Financial Analyst (CFA) Level 3. He rowed with the Cambridge University Boat Club and as a keen cyclist once biked from John O’Groats to Land’s End in six days after deciding his original target of seven was a bit soft.

Guy Barnes

Head of Advisory

Guy has experience in the Energy & Commodities industry where he worked for over ten years with some of the industry leading energy trading companies including Gazprom, Cargill and EDF Energy.  In the early part of his career, he worked as a fundamental analyst in a market intelligence group producing gas and power market forecasts and subsequently gained the GARP Energy Risk Professional (ERP) qualification.
A Lean expert, Guy has subsequently worked with companies across many different industries to transform business processes to optimise and improve the accuracy of their reporting and analytical capabilities.
Guy holds a Physics and Philosophy degree from Kings College, London.

Mark Jefford

Director - Product Owner

Mark is a versatile and experienced technologist with 24 years' experience in the finance sector. He is an enterprise architect, project manager and hands-on implementer.

He has led multiple agile proofs-of-concept of big-data technologies for the analysis of market and credit risk, as well as for financial crime and fraud detection. He has worked for Credit Suisse (as a Director), HSBC and SunGard.

In his spare time he always seems to be running marathons!

Jonathon Davies

Principal Consultant

Jon is a highly regarded developer with a background in complex logic development, especially within Excel. Jon has been involved in the Schematiq product from the start and continues to develop it as new opportunities arise.

Prior to joining HTI Labs Jon worked for Credit Suisse and as a wind tunnel systems engineer. He holds an MEng from Cambridge University. In his spare time, Jon rows competitively to a high standard.

Neil Talbott

Senior Consultant

Neil is a software developer and data analyst. He holds an MA in Mathematics (Pure and Applied) from Cambridge University and is a voracious problem solver with a background in flying fast jets and helicopters for the Royal Air Force.

Neil loves nothing better than running over and through (almost) impossible terrain such as Saharan deserts and Lakeland fells.

Kevin Crooks


Kevin was HTI's first graduate employee and has become an accomplished developer and great asset to the development team. Kevin has a PhD in Mathematics from Cambridge University and also an MMath in Mathematics from Warwick University.

Kevin is a keen rock climber and skier and with his rowing heritage and passion for solving problems is a perfect fit for the team.

Marcus Nielsen


Marcus is our newest HTI employee and already a valuable contributor to the Schematiq code-base.

Marcus has a BA with MMath in Mathematics from Cambridge University and achieved the highest national score in Further Maths (Additional) A-Level.

A keen footballer, Marcus played for Cambridge University 1st XI and was also scouted for the Wycombe Wanderers FC academy.

Zara White

Business Support

Zara joined HTI Labs to industrialise the Schematiq quality assurance and software release process as well as to provide administrative support to the team.

Zara holds has an MA in Natural Sciences from Cambridge University and is also a qualified GP. She enjoys competing in triathlons, Scandinavian crime drama and single malt whisky.

Energy Trading Workbench

When one of the world's largest power companies needed help with their front-office risk architecture, they knew whom to ask.