Warren Van der Mescht

Revenue & Client Operations Leader | Owning Cashflow, Escalations & Cross-Functional Performance | Team Development

United Kingdom

About

I operate at the intersection of revenue, operations, and client management, ensuring that organisations don’t just generate revenue, but successfully realise it. With over a decade of experience across post-sales operations, accounts receivable, and international account management, I specialise in managing the full order-to-cash lifecycle, from client relationships through to cash collection and process optimisation. At Sotheby's, I’ve progressed from post-sales into a senior leadership role overseeing accounts receivable, where I am responsible for: - Managing high-value client portfolios - Leading and developing teams - Acting as the escalation point for complex client and internal issues - Driving collaboration across finance, sales, and operations A core part of my role involves operating in environments where discretion, regulatory compliance, and risk management are critical. Working with high-profile and ultra-high-net-worth clients requires strict adherence to anti-money laundering (AML) regulations, alongside a high level of confidentiality and sensitivity in all interactions and processes. Previously, at The Royal Mint, I managed international accounts across the Americas, Caribbean, and Australasia, working closely with governments and state-owned enterprises. This experience strengthened my ability to navigate complex regulatory frameworks, high-value transactions, and multi-stakeholder environments. My focus is not just on collections, but on removing friction: improving processes, aligning teams, and ensuring both clients and the business achieve the best possible outcomes. I am particularly motivated by roles where I can: - Own cashflow and revenue execution end-to-end - Lead and mentor high-performing teams - Act as a central point of decision-making and escalation Improve efficiency across departments and systems.

Experience

  • Sotheby's (8 yrs 4 mos)
    • Senior Accounts Receivable Manager
      Oct 2024 - Present · 1 yr 9 mos

      - Lead the end-to-end accounts receivable function across ~20 auctions and ~60 private treaty sales annually, overseeing transactions exceeding £400M -Manage and develop a team of coordinators, supporting onboarding, performance, and career progression - Act as the primary escalation point for complex, high-value client and internal issues, unblocking revenue and driving resolution in time-sensitive environments - Oversee a portfolio of high-profile and ultra-high-net-worth clients, balancing relationship management with commercial outcomes and strict confidentiality - Ensure full compliance with anti-money laundering (AML) regulations and internal risk frameworks across all transactions - Partner cross-functionally with specialists, sales, and operations teams to streamline post-sale processes and accelerate cash collection - Identify and implement process improvements to reduce friction, increase efficiency, and enhance collaboration across departments

    • Senior Post-sale Manager
      Apr 2021 - Oct 2024 · 3 yrs 7 mos

    • Manager Post Sales
      Mar 2018 - Apr 2021 · 3 yrs 2 mos

      • Manage exceptional client service for a portfolio of sale: ownership of all post sale activities from the auction through to payment and shipping of works. • Review Bids pre-sale to ensure appropriate financial references are obtained. • Billing of the auction, performing hammer reconciliations as well as handling post auction, private and cancelled sales, and house property. • Proactively closing a sale financially and logistically: collecting all outstanding client debt and resolving all inventory issues and operational charges. • Work with expert departments regarding extended payment terms, debt collection, and skillful dispute resolution collaborating with technical experts. • Perform due diligence checks on all parties that transact at sales.

  • Account Manager | Circulating Coin at The Royal Mint
    Mar 2016 - Dec 2017 · 1 yr 10 mos

    Account Manager for the Americas, Caribbean and Australasia. - Preparation and process of all customer enquiries for circulation and commemorative coins. - Preparation of tender offers and proposals in English or in Spanish. - Analysis of prices and draft of formal contracts. - Assistance in construction and development of Corporate Plan and sales forecast. - Ensure that all orders are processed, authorised and progressed through the factory through to completion using effective management to ensure that all aspects of contractual commitments are met. - Monitor and chase outstanding debts

  • Indra (Alcobendas y alrededores, España)
    • General Services Consultant & Contract Management
      Dec 2012 - Oct 2015 · 2 yrs 11 mos

      Facility and Contract Management of Indra’s Spanish and International offices: - Negotiation of contract terms and renewals with properties for over 80 Spanish offices. Have helped save over €300,000 since February 2014 via contract negotiations. -Market Search and prospection for new offices both in Spain, the UK and USA. -Significant personal contribution towards updating and organizing all of Indra’s 80 office contracts and improving the office efficiency of numerous offices. -Quarterly reports of Indra’s facilities: office efficiency (rent, employee occupancy, usable space) and contact duration, both domestically and abroad. -Frequent contact with office managers of all of Indra’s offices, as well as with property owners of all leased offices.

    • Research and Corporate Strategy Consultant
      Apr 2011 - Dec 2012 · 1 yr 9 mos

      -Market Research and Corporate Strategy consisting in gathering and analyzing macroeconomic data and tendencies as well as IT business intelligence relevant to Indra’s growth strategy. -Analysis of IT competitors quarterly and annual results as well as IT business and investment trends in order to publish monthly macroeconomic and IT bulletins. -Country reports and power point presentations for Indra’s Administrative and Presidential Board.

  • Consultant at Indra B.M.B.
    May 2009 - Apr 2011 · 2 yrs

  • Consultant at Indra Sistemas
    Apr 2008 - May 2009 · 1 yr 2 mos