Who we are

Christian Nentwich PhD

Chief Executive Officer

Christian Nentwich is co-founder and CEO of Duco, a true disruptor in the data quality and reconciliation market. A lifelong technologist with a relentless passion for simplifying complex data using augmented machine learning and AI automation, Christian has led Duco from a few lines of code five years ago to an award winning global enterprise. He has a proven track record of building successful businesses and leadership teams that deliver transformational experiences to clients. Prior to Duco, Christian founded Systemwire, which exited to Message Automation and further to Broadridge. He holds a BSc and PhD in Computer Science from University College London and is a winner of its Faculty Medal in Mathematical and Physical Sciences.

Peter Sobiloff

Non-Executive Board Member

Peter is currently managing director of Insight Venture Partners. Alongside Duco he serves on the board of directors at Achieve3000, DrillingInfo, Fenergo, Filmtrack, Kinnser Software, Kony Solutions, Syncsort, Mediaspectrum and Workforce Software. Before Insight, Peter was President of Think Systems, an Insight portfolio company focused on supply chain management. Prior to that, he was President of Datalogix, a vendor of enterprise application software for process manufacturers. He also held senior executive roles at Ross Systems, a provider of financial application software.

Cristobal Conde


Cris is the former President and CEO of SunGard, and brings a wealth of experience following a 24-year distinguished career at the firm. He grew SunGard to become a Fortune 500 Company and the largest privately held software and services company in the world, employing over 26,000 staff. Prior to President and CEO of SunGard, Cris held various senior roles at the company including Executive Vice President and COO.

Spencer Lake

Non-Executive Board Member

Spencer is an experienced former investment banker, now focused on helping technology platforms digitise financial services and minimise the cyber risk inherent in this process. In addition to his Duco board seat, Spencer has several other roles - Vice Chairman, Board of Directors at Fenergo (client onboarding and lifecycle management, AML/KYC compliance and client data management); Board member and adviser at nCino (cloud bank operating system); Board member and advisor at Nivaura (platform for tokenising all forms of capital raising); Chairman of Inforalgo Information Technology (data management); and Chairman of Advisory Board at Callsign (digital identity authentication).

Mireille Dyrberg

Chief Operating Officer

Mireille Dyrberg is Duco’s Chief Operating Officer with responsibility for customer success, all administrative functions, finance and legal. She was previously Chief Operating Officer of TriOptima, a post-trade services firm providing trade reconciliation, portfolio compression, risk analytics and margin services. Earlier in her career, Mireille was the Global Business Manager for Rates at Dresdner Kleinwort, before which she held a series of Operations leadership roles both in London and Frankfurt. She holds a BA from the University of Kent at Canterbury and a double MA degree with Distinction from Exeter University and the Uniwersytet Jagiellonski w Krakowie, specializing in macroeconomics.

Julian Trostinsky

VP Global Client Services

Julian has over 20 years of professional experience in assisting large financial services organizations with evaluating their operational and technology infrastructures. He has built and operated Reconciliation Centers of Excellence at firms including Citi and BNY Mellon. Prior to Duco, Julian was at SmartStream Technologies, where he was in charge of their Global Operations and Client Services division. As one of his last initiatives at SmartStream, Julian built and managed a Global Managed Service organization that offered implementation and maintenance services related to reconciliation best practices.

Danielle Price

Head of Finance & Operations

Danielle is Duco’s Head of Finance & Operations with responsibility for the HR, legal, finance and administrative functions. Danielle previously held numerous senior leadership roles at NEX Group, latterly as the Global Head of Finance Operations where she was responsible for the design and delivery of the finance transformation programme. Earlier in her career Danielle held a variety of commercial finance roles across numerous sectors, including investment banking, insurance and engineering. Danielle is a CIMA member and holds a BA in Accounting & Finance from Nottingham Trent University.

Douglas Greenwell

Global Head of Sales

Douglas is Duco’s Global Head of Sales, responsible for revenue growth in all territories where the firm operates. Douglas has over 28 years’ sales & marketing experience working for brands such as Reuters, Dow Jones, IBM, American Express & G4S delivering data-driven & systematic growth programmes in a variety of product, marketing & sales roles. Douglas also has experience working with private equity working as the Group Strategy & Marketing Director for Danwood, previously the UK’s largest reseller of managed print services, putting in place the growth turnaround strategy leading to the successful divestment of the company. Douglas graduated from the University of Surrey with a BSc in Physics & Computer Science.

Nico Busch

Head of Product Management

Nico is responsible for product management at Duco. He has more than 10 years of experience in the financial technology space with experience in both engineering and product management. Most recently at Kyriba, where he was in charge of building out their risk management and valuation solution. Previously, he has worked in a number of financial technology companies, including Wallstreet Systems (an ION group company), QSR management (a BNY Mellon company) and Simcorp Treasury Solutions.

Barry Kelly

Chief Architect

Barry drives the company's technology strategy and architecture. Barry has 14 years of experience in software engineering across the full stack, from browser to CPU. Beginning with Irish startup Avaeon Solutions in 2004, he led the development of a framework for data-intensive web applications, including the design and implementation of an in-memory relational database. He then moved on to own Delphi language design for six years at Borland, where he shipped compiler, debugger and runtime library improvements to hundreds of thousands of developers.

Martin Foot

Lead Developer

Martin leads the Platform Team at Duco, focusing on the testing, deployment, and monitoring of the application and the architecture that runs it. He is a strong proponent of best practices throughout the application stack, and is equally at home discussing user requirements, writing code, or administering servers. Martin is particularly focused on developing tooling to empower developer and operational engineering teams to iterate rapidly while maintaining consistent high standards. He has pushed the use of proactive monitoring, data mining, and analytics tools to derive information that can be used throughout Duco to help make informed business decisions.

Matthew Smith

Lead Developer

Matthew was Duco’s first non-founder hire and currently leads the feature development teams for Duco Cube. He has over 10 years’ experience in full stack software development, including at public transport innovators Kizoom. When not advancing the Duco Cube platform, Matthew provides guidance and mentoring to the growing Duco technical teams. A believer in transparency and effective communication, he prides himself on building interdisciplinary bridges across the business. Matthew holds an MSci in Mathematics and Computing, and a Phd in Computing, both from Imperial College London.

Daryl Orts

VP of Engineering

Daryl looks after the Engineering team at Duco, including Product Development, QA, Technical Operations and Research Labs. He has built and led multi-national technology teams for 20 years, across many industries including mobile messaging, business intelligence, social media analytics, translation, and CRM. Most recently, Daryl was VP of Engineering for OpenMarket, a leader in cloud based messaging systems, where he led teams across London, Seattle, Guadalajara and Pune. Daryl is an American ex-pat in London, holding a UK Tier 1 Exceptional Talent visa. He has a B.S. in Computer Engineering from Case Western Reserve University.

Growth Advisory Council

The Growth Advisory Council is a group of leaders in financial services and technology – including senior management of leading global institutions – that has been formed to support Duco on its strategic growth ambitions.

Philippe Buron

formerly of Societe Generale and BNP

Describing himself as ‘a CTO and CIO with a passion for technology transformation, sustainable culture shift and people growth’, Phillipe is an experienced change leader, with a successful track record in the banking and technology industries, holding positions including CIO, Chief Architect and CTO. As an experienced technology professional, he helps drive large-scale transformation and has enterprise-level experience in Agile and Digital transformations.

Don Callahan

formerly of Citi

As the former Global head of operations and technology at Citi, Don played a key role in transforming Citigroup’s geographically diverse and loosely aligned functions into a lean, globally integrated enterprise. A transformative leader with broad experience driving strategic change across large, global organizations, during his 10 years at Citi, he also established globally consistent technology standards and governance and migrated critical functions to an integrated, managed Shared Services model. Prior to joining Citi, Don held senior executive positions at Morgan Stanley, Credit Suisse and IBM Japan.

Mandy DeFilippo

Managing Director and Head of Risk Management for Fixed Income & Commodities, EMEA at Morgan Stanley

Mandy DeFilippo is a Managing Director and Head of Risk Management for Fixed Income & Commodities, EMEA at Morgan Stanley. In her current role, Mandy sits on the regional and global management committees for the Fixed Income Division, and on a number of other governance-related committees in the firm, including Franchise and Risk committees. Mandy is an active participant in industry-wide organisations in the European market, including initiatives to establish market standards for the industry, and has spoken publicly in a number of forums in this connection. She joined the Board of the International Capital Markets Association (ICMA) in 2016 and was elected Chair in May 2018, the first woman to hold the position.

Jonathan Greenwood

Vice Chairman Financial Institution at ABN Amro

Jonathan has 30 years of banking experience and has developed a deep knowledge of financial institutions and capital markets. He is a proven team-builder and has particular expertise in providing strategic advisory for insurance companies, particularly in M&A, capital-raising and hedging. As Vice Chairman Financial Institutions at ABN Amro, he focusses on developing the bank’s international footprint and strategic client dialogue and driving its thought leadership in banking, insurance and asset management.

Doug Hague

formerly of Bank of America

Doug Hague is a global data analytics leader and has advised industry leaders across financial, healthcare, retail, and manufacturing sectors. In 2018, he was named one of the Top 50 Data and Analytics Professionals in the USA and Canada by Corinium Global Intelligence. As Chief Analytics Officer of Bank of America Merchant Services, he was responsible for influencing business and portfolio strategies through data research and analysis. He also designed and executed a new analytical structure that improved quality and access to company data, increasing sales performance and customer profitability.

James Hardy

Executive Vice President and Chief Data Officer at State Street

James Hardy is an executive vice president and chief data officer (CDO) at State Street Corporation, where he leads a regulatory compliance and a data governance and management transformation program. James has more than 25 years of business and technology consulting and management experience within the financial services industry. He has served as chief information officer for Global Markets and, prior to joining State Street in 2003, was a senior executive in a financial technology consulting services company, where he was responsible for sales and delivery.

Ignacio Lopez-Perea

formerly of BBVA

Ignacio is a B2B and finance specialist, with nearly 30 years of professional experience. During 28 years at BBVA, he gained broad experience in capital markets, client coverage, financial planning, investor relations, business development, strategy and internationalization. He focused on the digital transformation of BBVA's B2B business, advancing the digitalization of the distribution and management models and helping shape the transformation journeys of the B2B units groupwide. He also had a specific focus on the digitalization of the person-to-person interactions, and how they should become strongly intertwined with the increasingly crucial do-it-yourself offer and the growing AI capabilities available.

Slava Shafir

Barclays Ventures

Slava is a senior financial services executive with track record in leveraging transformation management, control, and governance into operational strength. Slava currently leads Barclays Venture Exploration Zone and responsible for the partner strategy in support of growth aspirations of the business. In this role, he is responsible for identifying new revenue opportunities, sourcing and development of partnerships, joint-ventures, and co-development opportunities based on understanding the market conditions, current business priorities and risk appetite.

Stuart Sinclair

Board member at Lloyds Banking Group and QBE

During his career, Stuart has gained significant experience in financial services in the UK and overseas having held senior leadership positions in several financial services companies including as Chairman of GE Capital Bank (UK), Chief Executive Officer of Tesco Personal Finance, Director of Virgin Direct and Director of Retail Banking at Royal Bank of Scotland. He is the Senior Independent Non-Executive Director at Swinton Insurance and QBE Europe and a Non-Executive Director at Provident Financial plc and Vitality UK. He is also on the Council of the Royal Institute of International Affairs (Chatham House).

What we believe in


Duco means "I lead' in Latin. This isn't just an empty phrase. Our success is based on fundamental innovation and challenging the status quo.


Everything we do is geared towards making things simpler. For us, for our partners, and for our customers.


We don't just drop a piece of software on our customers then walk away. We listen to their needs, feel their pain and work together to succeed.


Openness forms the bedrock of how we treat colleagues and customers alike. We address issues quickly; no skirting around.


At Duco, we're out to make waves not ripples. So while small details are important, we never lose sight of the bigger picture.