Collections & Recoveries

Our Team

Extensive Expertise

Arum’s reputation is for working closely with clients to help them deliver success in the long term. Our culture comes from our team of strong credit management professionals who have extensive expertise plus strategic, technical, and operational experience across all areas of debt collections and recoveries. Our practitioners are able to understand our clients’ particular business challenges because many have previously held similar responsibilities.

Arum is unique both in terms of our independence from any collections and recoveries software vendor and in our depth of domain experience. Our team has hundreds of man years of experience in collections and recoveries both from an industry practitioner and from a software vendor perspective. The range of experience – from senior thought leaders with an average of 30 years’ experience to consultants with less than 10 years’ experience – means that we can offer teams tailored to clients’ needs.

As well as outstanding subject matter experts in debt collection and recoveries, the Arum team possess a range of other skills and experience that add significant value to the Company and our clients.  These include multi-lingual capability and experience of working in over 50 countries.

We are a growing business and are always looking for new talent, so please keep an eye on our social media channels to see which roles we’re currently hiring for or send your CV to On our Careers page you can also hear directly from some of our newer recruits about what it’s like to work for Arum.


Jamie Waller - Chairman


Jamie Waller is a British entrepreneur, philanthropist and investor. He has worked in financial services since 1998 and previously built, managed and sold many businesses in the credit and debt space. Jamie lead the acquisition of Arum in 2017.

Mark Johnston - Chief Executive

Chief Executive

Mark has both operated and led in every area of business, from FTSE 100 to SME, across markets and sectors and with a diverse portfolio of people and product. Managing multiple and complex large-scale and trail-blazing transformation and change programmes across sectors, Mark has experience in areas of health, tech innovation, telecoms, engineering, enforcement, banking and many more markets, across both private and public sector.

Andy Pritchard - Director of Professional Services

Director of Professional Services

Andy has completed successful collection assignments in a large number of major organisations across Europe. Formerly with FICO/London Bridge he provides best practice consultancy and training to major organisations and is responsible for the development of Arum’s much respected Systems consultancy team. Andy is also the creator of our highly effective Debt Manager Systems HealthCHECK.

Jonathan Dunn - Director of Business Development and Marketing

Director of Business Development and Marketing

Jonathan heads up Arum’s Account Management, Business Development and Marketing functions across all of Arum’s business streams – Systems Consulting; Strategy, Operations & Training; Data & Analytics; Software & Products.  A key focus and skillset of Jonathan’s is partnering with clients and prospective clients to understand their objectives, strategy and pressure points, to identify collaboration areas where Arum can provide substantial business benefits for clients.  Through Arum and prior roles, Jonathan has had a successful career in business development across a number of sectors, industries and geographies.

Kaska Haczek - Financial Controller and Head of Corporate Services

Financial Controller and Head of Corporate Services

Kaska’s role encompasses the accounting, monitoring and implementation of financial controls in Arum. Before joining Arum, Kaska worked in various accounting roles in Poland, Denmark and the UK. She is currently responsible for the preparation of management accounts, forecasts and budgets as well as overall control of Arum finances.