
Mark Bates
Chief Executive Officer, Co-founder
Mark is the driving force behind all of RDT’s major innovations, its business practices and even its office culture. He is passionate about technology and all things new, and is continually seeking to create different ways for insurers to process data and improve business performance.
Mark graduated in 1984 with a degree in systems analysis and began working for Bank of America as a technical consultant. While there he built one of the first Europe-wide networked document image processing systems. He also defined hardware and software standards for the bank’s European division and led the development of several dealing systems.
Mark co-founded RDT in 1991 with the goal of developing innovative software for the insurance industry. RDT is committed to the Microsoft platform and Mark has sat on numerous Microsoft Advisory Boards.

Holger Hasenstrauch
Co-founder
As a founder, Holger has been at RDT since its inception in 1991, and has wide-ranging and in-depth knowledge of the design and evolution of its products, and of the insurance industry it serves. He uses that experience to provide guidance and inform key decisions on the company’s technology strategy, which encompasses software design, architecture, and development practices, with a particular emphasis on delivering robust, scalable, secure, and highly performant software.
Holger studied BSc Electronic Engineering at Southampton University, and after graduating, he worked as a software engineer, designing and developing data communications software products that were used in some of the world’s largest organisations, before co-founding RDT with Mark and Andy.

Joe O’Connor
Deputy Chief Executive Officer
Joe’s role includes ‘all things client’ ensuring existing and new customers are continuously supported in the most helpful, efficient and cost effective way possible to allow our client’s businesses to prosper and innovate.
He has more than 20 years of experience in sales and marketing in financial services and technology companies. He oversaw impressive international growth at his previous employer Broadridge, a leading provider of technology-based solutions for capital markets, wealth management and asset management firms, where he was the company’s Managing Director of Major Account Sales in EMEA.

Fiona Mason
Chief Human Resources Officer
The heart of RDT is our people – talented professionals with exceptional skills who ensure that our products and services are best in breed. Fiona’s remit is to ensure that we hire and retain the best of the best. She has been with RDT since 2011 and has seen our headcount more than double in that time.
Fiona began her career in the City, having worked at Bank of America for 12 years. After a period of consultancy she chose to join RDT permanently. Fiona is passionate about working creatively with People in Technology and has supported us in our growth by providing interventions around recruitment, performance and learning. By investing in our people we invest in our business.

Jon Mitchell
Chief Operating Officer
Jon Mitchell joined us having run his own consultancy business for seven years where he helped a range of MGAs, Insurers, Brokers to challenge the tech status-quo. This included developing new platforms for trading, data analytics and product development alongside establishing organisational capability. Jon and his colleagues also worked with a number of Private Equity investors providing Due Diligence services, Portfolio reviews and interim C-Suite roles.
Prior to independent life, Jon spent 16 years in a number of senior roles with AXA (as P&C Operations Director), Towergate (Underwriting IT Director) and PowerPlace (Technical Director) having started insurance life in the UK with Aon as an Associate Director for Change.

Sarah White
Director of Finance
Sarah is Director of Finance and on the Executive Team, overseeing the Finance Function with a focus on accounts, audits, payroll, and reporting. A qualified AAT professional currently pursuing her CIMA, Sarah’s career journey includes stints as a Finance Manager for a Telecommunications corporation and as a private accountant. After 12 years dedicated to raising her children, she joined RDT part-time, but Sarah’s dedication and leadership have propelled her to lead the finance department within a successful six years.

Laurence Hudson
Director of IT & Client Services
As RDT’s Director of IT and Client Services, Laurence brings over 20 years of experience in transforming technology, operations, and services. Laurence has a deep expertise in cloud architecture, Information Security, and IT operating model transformations. Laurence has a strong focus on governance and regulatory compliance, he ensures that RDT meets the highest industry standards while continuously driving improvement and innovation across the organisation.

Joanna Takieddin
Director of Product
Joanna is an experienced product leader with over eight years in senior product management roles, specialising in product strategy, design systems, and agile delivery. She has built and led high-performing Product and UX teams across the InsurTech and FitTech sectors, with a strong track record of delivering innovation and driving growth.
Before joining RDT, Joanna was Director of Product Management at My PT Hub (part of Evercommerce and Jonas Software), where she launched a new member app that significantly boosted engagement, introduced agile methodologies, and developed a comprehensive design system.
She previously spent five years at Applied Systems, leading Product Management for the UK and ROI markets. There, she defined and delivered European product roadmaps, supported M&A activities, and recruited senior product leaders to scale the team in line with rapid market expansion. Earlier in her career, Joanna also held consulting roles across a variety of tech businesses.

Lorraine Minett
Director of Marketing
Lorraine joined in 2023 and heads up the Marketing function at RDT, bringing with her a wealth of experience and a genuine passion for understanding consumer behavior. With over 15 years in Sales and Marketing, she’s become an expert in crafting marketing strategies that truly connect with audiences. She immerses herself in the intricate dynamics of market trends and industry insights to uncover the driving forces behind purchasing decisions on a deeper level.
In her role at RDT, Lorraine is dedicated to driving meaningful connections with clients through transparent communication and innovative marketing initiatives. She believes in giving partners and customers all the information they need to make confident decisions. Lorraine’s mission is to revolutionise the way RDT engages with its audience, one compelling campaign at a time.

Luke Mardell
Client Relationship Manager
Luke joined RDT with 15 years of experience in Personal and Commercial Lines Insurance. He gained experience working for AXA UK and The AA, during which he held Claims Management roles where he was responsible for running large scale teams and managing a number of the company’s key Supplier Relationships.
Luke has a long history of successfully engaging with senior leaders and business partners to develop processes using technology and adoption of digital solutions. In his previous roles, he has successfully delivered solutions to optimise the motor claims experience, specifically in the end-to-end repair and total loss journey.
In this customer facing role Luke will focus on developing RDT’s relationships with existing clients, while also assisting in new customers to join us.
Our people, their stories

Alex Askew
Associate Software Engineer (Graduate Programme)
Prior to RDT, I studied Computer Science at the University of Greenwich where my true love for the field was fully ignited. After graduating from university in 2022, I wanted to apply this passion to real and impactful problems. Following a stint of working night shifts at a supermarket and completing coding bootcamp, I applied to work at RDT and the rest is history. During my time working here, I can safely say that I have never felt more respected or fulfilled in a role, and I get to do what I love all day with great people.
As an associate software engineer at RDT, I am responsible for adhering to RDT’s software development lifecycle. My role involves writing the CI/CD scripts, developing the frontend, backend, and database, reviewing code, and contributing ideas alongside potential solutions, with the goal of meeting our project’s requirements in a timely manner.
My favourite thing about working at RDT is the people, especially those in my team. Not only are they great company in and out of work, but they are also reliable and always willing to help. Another key aspect I appreciate about working at RDT is the respect and autonomy the company gives its employees, which makes the work much more fulfilling as you feel invested in a company that is invested in you. The work itself is also rewarding because it is challenging – every morning presents a new problem to solve and every evening I go home having overcome one.
Outside of work and programming, my current passion is learning the guitar. It is simultaneously rewarding and humbling. Some of RDT’s other musicians and I are planning to get together outside of work to relax, socialise, and play some music together. I am also attempting to learn a second language. Curiously, it would seem that both my work and hobbies share a similar foundation in the balance between challenge and reward.
As mentioned above, RDT is a company that respects its employees and understands that happy staff lead to greater productivity. This is one of many ways in which I feel supported at RDT. Another example is the dynamic I have with my manager as I feel comfortable approaching them at any time to discuss any issues I have, as well as, having bi-monthly meetings where we can sit down and review progress. Furthermore, RDT has also supported me by providing the resources to obtain Microsoft certifications which are relevant to the work I do here and also beneficial for future career growth.

Joe Hayes
Software Engineer (Graduate Programme)
Before RDT, I went to Cardiff University to do a Computer Science degree, after I finished I worked on my own for while helping clients through friends and family with websites or process automation. However, I really wanted to gain more experience as a software developer, and after connecting with RDT through their Assessment Day it resulted in me being offered a Associate Software Engineer role.
As an Associate Software Engineer, I’ve gotten exactly what I was looking for as I am constantly presented with new topics to learn and understand. I apply this knowledge on given projects, where often I find myself collaborating in our the team for the best solution. In my day to day, I can find myself with in code, pipelines or cloud resources… giving me a nice range of contexts to explore!
One of my favourite things about working at RDT is the culture, it makes my work here that much more enjoyable, its a really friendly and fun environment where I feel I can push myself whilst being able to ask any question. This is what I appreciate the most, as I want to learn/improve as much as I can and being in an environment that supports this is exactly what I was looking for.
I am most passionate about trying new things, I love to try different programming languages and frameworks. Its interesting to me to see how one process can be done in many different ways and which one is the most efficient.
RDT has really supported me and our team with supports like flexible starting times and work from home arrangements. Our team members have longer commutes than normal, so having this flexibility really helps when it comes to making the most out of my day.




