Mark Breslin
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Mark Breslin Email & Phone Number

Senior Vice President | Head of Fixed Income (EMEA) Application Support | EMEA Regional PREM Lead at Jefferies
Location: United Kingdom 10 work roles 1 school
1 work email found @capco.com 4 phones found area 312, 212, and 718 LinkedIn matched
✓ Verified Jul 2026 4 data sources Profile completeness 100%

Contact Signals · 1 work email · 4 phones

Work email m****@capco.com
Direct phone (312) ***-****
LinkedIn Profile matched
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Current company
Role
Senior Vice President | Head of Fixed Income (EMEA) Application Support | EMEA Regional PREM Lead
Location
United Kingdom
Company size

Who is Mark Breslin? Overview

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Quick answer

Mark Breslin is listed as Senior Vice President | Head of Fixed Income (EMEA) Application Support | EMEA Regional PREM Lead at Jefferies, a with 5159 employees, based in United Kingdom. AeroLeads shows a work email signal at capco.com, phone signal with area code 312, 212, 718, and a matched LinkedIn profile for Mark Breslin.

Mark Breslin previously worked as Head of Fixed Income (EMEA) Application Support at Jefferies and Managing Principal at Capco. Mark Breslin holds Bsc (Hons), Business Information Systems from University Of Hertfordshire.

Company email context

Email format at Jefferies

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{first}.{last}@capco.com
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Profile bio

About Mark Breslin

Nearly 20years working from NY, Chicago and London in Capital Markets Technology.Experience with a wide range of clients from the large Tier 1 &2 Investment Banks, Hedge Funds, Prop Trading Desks, and small technology firms.The majority of my career I worked for the ISV ION (formerly ION Trading), working on many large and medium scale implementations. Later I worked on product management for ION developing and enriching the US Rates solution, which became the industry standard. I pride myself in having the ability to quickly understand the client perspective, and align with their ideas.I enjoy working in collaborative teams to put together solutions for clients that exceed their requests.Finally and more importantly I never leave the client stuck. Things do go wrong and I have the determination to take on complex problems, and apply technical understanding with practical application.

Listed skills include Electronic Trading, Trading Systems, Business Analysis, Market Data, and 32 others.

Current workplace

Mark Breslin's current company

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Jefferies
Jefferies
Senior Vice President | Head of Fixed Income (EMEA) Application Support | EMEA Regional PREM Lead
new york, new york, united states
Website
Employees
5159
AeroLeads page
10 roles

Mark Breslin work experience

A career timeline built from the work history available for this profile.

Head Of Fixed Income (Emea) Application Support

Current

London Area, United Kingdom

Jun 2024 - Present

Managing Principal

London Area, United Kingdom

Dec 2020 - Jun 2024

Head Of Us Rates Trading

Ion

Greater New York City Area

Responsible for the full client engagement experience for ION's US Rates businessSales• Product demonstrations• Commercial proposal preparation and delivery• Management reportingDelivery• Business analysis• Project management• Implementation analysis, planning and delivery• Team management and reportingCustomer Happiness• Account management• Client support• Technical AnalysisProduct • Market research • Product feedback• Product backlog and roadmap• Hosting and managed services

May 2019 - Dec 2020

Us Rates Client Services Manager

Ion

Greater New York City Area

Management of the client services engagement team for ION’s US Rates customers.The team is responsible for all aspects of the client experience. Covers first and second line support, Business Analysis, and Account Management.Responsible for 22 customers in North America.Provide oversight on and direction into strategic initiatives for ION and customer growth in the US rates trading space.My role encompasses many different responsibilities, some of which are outlined below• Team Management • Resource Planning• Escalation and Mentorship• Senior Management Reporting• Client Retention and Incremental Sales• Pre-Sales preparation• Request for Proposal inputAs the leader of the team, I am the primary point of escalation for increased priority issues. I am also the primary go-to resource within the company when internal teams require client information or market trends.Highlights• Installation of Global 23/5 Trading solution, providing continuous trading through multiple regions, across multiple asset classes.

Mar 2015 - May 2019

Product Manager

Greater New York City Area

Product Manager for the US Rates solution, overseeing 100+ software components integrated into an inter-connected software solution for Fixed Income trading on US rates markets.Customers are Tier 1, 2 investment banks and Hedge FundsMy role covered product evolution, solution integration and roadmap planning.My specialist focus was electronic trading, with high level of experience in automated, algorithmic trading strategies. • Collection of customer requirements• Analysis and problem breakdown• Data and Trend Analysis• Business requirement definition• Produce detailed specifications, Business requirement documents, and supporting materials.• Software solution definition and oversight• Oversight of prototyping and User Acceptance• Oversight of Quality Assurance cycles, for End-User feedback• Management and planning Software Delivery cycles with Engineering teams • Planning and management of software implementation, to meet the needs of the customer the first time.• Continual collection of end-user feedback on the software solution to build quality back in.• Team Management and mentorship, training the next new me, to be stronger, smarter, and leaner.• Software solution demonstrations.• Roadmap planning and presentation to internal strategic board, and external clients.Highlights• Design and implementation of Flow internalization workflow for 3 Tier 1 Investment Banks• Evolution of order routing within ION infrastructure, across fragment US Treasury benchmark market.• Design and implementation of fast trade notification solution, allowing for faster trade confirms, and associated auto-hedging strategies in US Treasury markets.

Apr 2012 - Mar 2015

Implementation Manager

Greater New York City Area

• Production of Implementation Plans and team scheduling• Maintenance of team skills assessment and training programs.• Focus on internal process improvement, standardization and normalization• Adoption of automation where applicable to improve quality of software deliveryHighlights • Oversight and management of 6 Tier 1 Investment Banks and 2 Proprietary Trading firm installations• Expansion and phased implementation at existing installations.

Apr 2011 - Mar 2012

Implementation Specialist

Greater New York City Area

As a software specialist, on the deployed software solutions, my role included the installation, configuration, testing, training, and user assistance required for a successfully deployed software solution.• Implementation planning• Pre-installation in internal test environment of the planned rollout• Co-ordination with internal teams, for the recommended configurations and versions to meet the particular customers’ requirementsHighlights• Implementations and Project Management of 2 multi-site prop trading firm installations based from Chicago.• Implementations at 6 Tier 1 Investment Banks Global Multi-Asset Market Making installations.

Apr 2009 - Mar 2011

Account Manager

Greater New York City Area

• Oversight of 3 Tier 1 Investment Bank's interaction with ION• Client reporting• Trader Liaison, meeting with End-Users for feedback on their usage of ION• Feedback of feature requests into the ION Development lifecycle• Documentation of High level functional specifications for End-user enhancements

Apr 2007 - Mar 2009

Client Services

Greater New York City Area

• First and second line support of ION software.• Internal and external trainer for ION software solutions.• 6 month rotation to US Rates Trading Floor for front-line support.• Technical analysis of software issues, reporting to remote development teams.• End-user testing, and QA validation of proposed fixes and testing of new versions• End user documentation

Apr 2006 - Mar 2007

Client Services

London, United Kingdom

• First and second line support of ION software.• Internal and external trainer for ION software solutions.• Technical analysis of software issues, reporting to remote development teams.• End-user testing, and QA Validation of proposed fixes and testing of new versions• End user documentation

Jan 2005 - Mar 2006
Team & coworkers

Colleagues at Jefferies

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1 education record

Mark Breslin education

FAQ

Frequently asked questions about Mark Breslin

Quick answers generated from the profile data available on this page.

What company does Mark Breslin work for?

Mark Breslin works for Jefferies.

What is Mark Breslin's role at Jefferies?

Mark Breslin is listed as Senior Vice President | Head of Fixed Income (EMEA) Application Support | EMEA Regional PREM Lead at Jefferies.

What is Mark Breslin's email address?

AeroLeads has found 1 work email signal at @capco.com for Mark Breslin at Jefferies.

What is Mark Breslin's phone number?

AeroLeads has found 4 phone signal(s) with area code 312, 212, 718 for Mark Breslin at Jefferies.

Where is Mark Breslin based?

Mark Breslin is based in United Kingdom while working with Jefferies.

What companies has Mark Breslin worked for?

Mark Breslin has worked for Jefferies, Capco, Ion, and Ion Trading.

Who are Mark Breslin's colleagues at Jefferies?

Mark Breslin's colleagues at Jefferies include Sarah Sindone, Igor Bujenina, Talya Omino, Jeffrey Greenip, and James Bull.

How can I contact Mark Breslin?

You can use AeroLeads to view verified contact signals for Mark Breslin at Jefferies, including work email, phone, and LinkedIn data when available.

What schools did Mark Breslin attend?

Mark Breslin holds Bsc (Hons), Business Information Systems from University Of Hertfordshire.

What skills is Mark Breslin known for?

Mark Breslin is listed with skills including Electronic Trading, Trading Systems, Business Analysis, Market Data, Fixed Income, Integration, Testing, and Low Latency.

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