Our Team


David Field

Founder and Managing Director

The Field Effect was founded and is led by David Field, an acknowledged expert in clearing and collateral management. With over 20 years financial services consulting experience, David has led many clearing and collateral advisory projects across buy-side, sell-side, CCPs and custodians, spanning strategy, target operating model and technology. He speaks at numerous industry conferences and is frequently quoted in financial services media.

Before founding The Field Effect, David was a main board member and shareholder of Rule Financial. Joining in 2004 as MD he helped grow Rule to become the leading investment banking consultancy with over 800 people, until its acquisition by GFT in 2014. Prior to Rule Financial, David spent 12 years at TCA Consulting where he served the board as head of the wholesale & investment banking practice.

Ian Weavers

Co-founder and Product Director

Ian Weavers joined The Field Effect after 35 years working in technology and financial services. He specialises in helping clients develop and plan the implementation of strategic change to achieve their business vision. He has developed a client focused business operating model and planning design process that has been executed over 60 times in 20 financial institutions, most recently in clearing, collateral management and securities finance for sell-side, buy-side, and industry utilities.

Prior to joining TFE Ian held senior roles at Standard Chartered, UBS, Prudential and two consulting firms, Terence Chapman Associates (TCA) and Rule Financial (now GFT Financial).

Julian Eyre

Head of Business Development

With a broad background across Investment Banking, Commodities and Corporate sectors Julian has extensive experience working with clients to support innovation and business solutions across the enterprise. Julian is a successful Sales and Business Development Manager seeking to build long standing customer relationships founded on trust and business engagement, working proactively to identify key business needs and the solutions necessary to meet tactical and strategic requirements.

Prior to TFE Julian has spent over 15 years across Investment Banking and Capital Markets enterprise technology software vendors. Julian has direct experience across front, middle and back office founded in the financial sector and enterprise technology solution sales.

Mark Barnard

Securities Finance Practice Lead

Mark joined The Field Effect with over 20 years senior executive experience in securities finance. Most recently Mark was Managing Director of Equity Finance, Liquidity Finance & Derivatives at RBS. Prior to RBS Mark spent 16 years at Morgan Stanley.

Mark will be leading the Securities Financing practice at The Field Effect. His specialisms include; collateral management, securities finance, prime brokerage, regulation & liquidity management.

Paul Chlapik

Enterprise Architect

Paul is an Enterprise Architect and senior consultant well versed in The TFE methodology. Paul spent 15 years working for JP Morgan, 10 of which as an enterprise architect. He has worked on projects for a major collateral utility provider and developing an operating model/roadmap solution for a clearing house. Prior to joining TFE, Paul worked for Rule Financial (now GFT).

Stuart Drysdale

Subject Matter Expert / Senior Consultant

Stuart is a Senior Treasury professional with over 20 years experience, primarily at RBS/NatWest, where he worked in Treasury functions in the Head Office, Retail Banking and Investment Banking Divisions. Stuart’s areas of expertise include capital management, market risk (primarily Interest Rate and Forex) management, Liquidity Risk management and transfer pricing. Stuart has also worked on Prudential Regulatory Policy design and implementation including most recently around Initial Margin rules.

Simon Davies

Senior Consultant

Simon Davies joined The Field Effect after nearly 20 years working in Investment Banking, with experience in securities finance and collateral management, prime brokerage and depositary banking, including process change, outsourcing, client and relationship management, and business development roles. Simon has particular expertise in designing customer on-boarding, most recently with OTC derivative clearing and collateral utility services

Prior to joining TFE Simon worked for Morgan Stanley, Deutsche Bank and Fortis.

Neelam Rathod

Senior Consultant

Neelam originally worked with David Field & Ian Weavers at Rule Financial (now GFT). After leaving Rule, Neelam joined Capco but jumped at the opportunity to work with David & Ian again. Neelam’s expertiese lies in delivering regulatory driven projects for tier 1 banks. She is particularly familiar with; Dodd-Frank, EMIR, UCITS V and AiFMD.

Tim Derville

Senior Consultant

Tim has over 20 years experience in investment banking operations most significantly in control and collateral functions. Prior to joining TFE Tim worked as a director in collateral operations at UBS for 8 years.

Expertise includes: Operational risk & Control, Collateral, portfolio reconciliation, outsourcing, global team management, RtB and tactical change management

David Young

Programme Manager

David is a programme manager with 30+ years experience of delivering high impact projects to FS clients.

David specialises in programme management, planning, delivery and has excellent stakeholder management skills.

André Freitas

Front-End Developer

André is a Front-End developer with wide-ranging experiences in web-development technologies including JavaScript, Angular, HTML5 and PHP. André joins The Field Effect from a Spanish software company where he spent his time as a software developer

Farhaan Sameja

Business Analyst

Farhaan is a Business Analyst with extensive experience in mathematical and quantitative analysis, data analytics, SQL/ Stata and Testing. Farhaan joins The Field Effect from DHL group where he spent his time as a pricing and market analyst.