Daniel O'Brien
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Daniel O'Brien Email & Phone Number

Senior Vice President at Citi
Location: United Kingdom 9 work roles 1 school
1 work email found @citigroup.com 3 phones found area 224, 212, and 800 LinkedIn matched
✓ Verified July 2026 4 data sources Profile completeness 100%

Contact Signals · 1 work email · 3 phones

Work email d****@citigroup.com
Direct phone (224) ***-****
LinkedIn Profile matched
3 free lookups remaining · No credit card
Current company
Role
Senior Vice President
Location
United Kingdom
Company size

Who is Daniel O'Brien? Overview

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Quick answer

Daniel O'Brien is listed as Senior Vice President at Citi, a with 201877 employees, based in United Kingdom. AeroLeads shows a work email signal at citigroup.com, phone signal with area code 224, 212, 800, and a matched LinkedIn profile for Daniel O'Brien.

Daniel O'Brien previously worked as Senior Manager at Deloitte Uk and Manager at Deloitte Uk. Daniel O'Brien holds Master Of Arts (M.A.), English Literature (British And Commonwealth), 2:1 from The University Of Glasgow.

Company email context

Email format at Citi

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{first}.{last}@citigroup.com
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AeroLeads found 1 current-domain work email signal for Daniel O'Brien. Compare company email patterns before reaching out.

Profile bio

About Daniel O'Brien

Daniel O'Brien is a Senior Vice President at Citi. He possess expertise in customer service, microsoft office, microsoft word, powerpoint, research and 8 more skills.

Listed skills include Customer Service, Microsoft Office, Microsoft Word, Powerpoint, and 9 others.

Current workplace

Daniel O'Brien's current company

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Citi
Citi
Senior Vice President
new york, new york, united states
Website
Employees
201877
AeroLeads page
9 roles

Daniel O'Brien work experience

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

Senior Vice President

Current

London, England, United Kingdom

Jun 2022 - Present

Senior Manager

London, United Kingdom

- Libor Contract Management Central Team Lead for a Tier 1 investment bank (March 2020-June 2022)- Libor Repapering Negotiation Support Team Manager for a Tier 1 investment bank (Jun 2019-March 2020)

Sep 2019 - Jun 2022

Manager

London, United Kingdom

- Brexit Repapering and On-Boarding Project Outreach Manager for a Tier 3 investment bank (Dec 2017-May 2019)- MiFID II Project Outreach Manager for a Tier 3 investment bank (Jun 2017-Dec 2017)- EMIR, Dodd Frank CBR, SFTR, FinfraG, and Bilateral Margin Project Outreach Manager for a Tier 2 investment bank (Mar 2016-Jun 2017)

Sep 2017 - Sep 2019

Assistant Manager

- MiFID II Project Outreach Manager for a Tier 3 investment bank (Jun 2017-Dec 2017)- EMIR, Dodd Frank CBR, SFTR, FinfraG, and Bilateral Margin Project Outreach Manager for a Tier 2 investment bank (Mar 2016-Jun 2017)

Mar 2016 - Sep 2017

Risk Architecture

London, United Kingdom

Firm-wide risk architecture project to map Risk and Finance data and eliminate discrepancies.Investigated Citi's products and their Risk Sub-Instruments and Sub-Types, Finance Enterprise Standard Products and Market Risk Permitted Product Lists and derived the correct mapping relationship between them. Identified and consolidated Sub-Instruments and Sub-Types where necessary.Analysed duplicate products and worked with source systems' technology teams to implement changes in trade data within the Trading and Banking Books.Led communication and conference meetings with senior client relationship managers and teams worldwide.Drove discussions around proposals, negotiated alterations, consolidated feedback, and devised action plans. Tracked project timelines and managed delays and ad-hoc issues relating to the project.Liaised with other project teams and provided updates to management on progression with the project.Conducted extensive testing to make sure trade data that was sent to technology teams was implemented correctly.Built associated business processes, detailed mapping documents for both Banking and Trading Book, and individual tracking documents for all Approving Units affected by Sub-Instrument/Sub-Type consolidation to ensure that that this method of mapping identification and maintenance is retained.AchievementsCompleted all necessary data analysis and mapping in time for planned implementation timelines.Gained extensive exposure to and further understanding of many products within Commodities, Equities, FX and Fixed Income.Worked exclusively with senior members of the firm in terms of negotiating changes with global client relationship representatives, meetings with the heads of the other project teams.

Aug 2015 - Jan 2016

Credit Risk Operations

Glasgow, United Kingdom

Overseeing the coding of reconciliation breaks by vendors - highlighting errors and communicating new concepts.Reviewing vendor metrics reports, running calls with a view to resolve the breaks and tracking SLAs.Ownership of technical and IT issues.Responding to regulatory enquiries put to the team.Producing multiple reports which were distributed to high level stakeholders and validating reports created by the vendor, such as Reg W.Investigation and subsequent adjustment of high volumes of trade notionals which were incorrect in risk systems, ranging from simple to complex and were high-value in nature. Meaning that potential errors had significant regulatory implications.

May 2014 - Apr 2015

Trader Mandate Operations

Glasgow

Provided monitoring as well as accurate and concise reporting of Trader Mandate exceptions to our key stakeholders.Daily exporting and enriching of fixed income derivatives and equity exception data for the purpose of inclusion in a multitude of tracking documents and reports; ensuring said reports are delivered to meet specific SLAs.Responding to exception queries from stakeholders, the majority of whom held very senior positions within the firm.Hosting conference calls on technical issues and conducting project progress overviews with other members; updating documentation to satisfy legal requirements.Reviewed and overhauled related documentation and reports in response to gathering feedback from stakeholders and own initiative to improve general readability and overall delivery of content.

Dec 2013 - May 2014

Assistant Officer

Glasgow, United Kingdom

Gained extensive experience in data analysis and client-facing functions through my work in multiple HMRC business streams.Required to exercise sound judgement and make decisions in challenging situations which produced end results that were often undesirable to the client.Had to have the confidence to deliver such unpalatable information clearly while safeguarding HMRC's commercial interests.Identified gaps in procedures, took ownership of escalating them through the proper channels, and ultimately saw them through to implementation at a national level.I performed back-office functions which aided the development of my already well-rounded technical abilities, particularly in ExcelCases required me to draw upon tax-specific financial knowledge to reconcile personal and business tax records.Margin for error was non-existent as mistakes would negatively impact the client, or HMRC itself, financially.Appointed to the position of Quality Advocate for my team as a result of exemplary record, meaning I held responsibility for handling queries from colleagues.Communicated complex solutions to team members with lower skill levels combined with maintaining approachability in relation to high performers with more difficult questions.Managed own case workload while remaining available for consultation and still easily exceeding targets for call times and cases completed across all three business streams.Responsible for liaising with the central quality team:Communicating quality team guidelines to work group as well as raising work group concerns with quality team.Performed HMRC Pacesetter duties – tracking team stats for reference when trying to improve performance.Work group achieved position of most productive in the UK during the PAYE Reconciliation project.

Mar 2011 - Dec 2013

Customer Representative

Glasgow, United Kingdom

Involved using Nationwide's own banking software to handle transactions, perform administrative tasks, and identify products that could be beneficial to members and up-sell them.

Aug 2010 - Oct 2010
Team & coworkers

Colleagues at Citi

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1 education record

Daniel O'Brien education

FAQ

Frequently asked questions about Daniel O'Brien

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

What company does Daniel O'Brien work for?

Daniel O'Brien works for Citi.

What is Daniel O'Brien's role at Citi?

Daniel O'Brien is listed as Senior Vice President at Citi.

What is Daniel O'Brien's email address?

AeroLeads has found 1 work email signal at @citigroup.com for Daniel O'Brien at Citi.

What is Daniel O'Brien's phone number?

AeroLeads has found 3 phone signal(s) with area code 224, 212, 800 for Daniel O'Brien at Citi.

Where is Daniel O'Brien based?

Daniel O'Brien is based in United Kingdom while working with Citi.

What companies has Daniel O'Brien worked for?

Daniel O'Brien has worked for Citi, Deloitte Uk, Morgan Stanley, Hm Revenue & Customs, and Nationwide Building Society.

Who are Daniel O'Brien's colleagues at Citi?

Daniel O'Brien's colleagues at Citi include Karen H., Sam Rosenberg, Sol Rendón, Choudhari Varsha, and Pricilla Joy.

How can I contact Daniel O'Brien?

You can use AeroLeads to view verified contact signals for Daniel O'Brien at Citi, including work email, phone, and LinkedIn data when available.

What schools did Daniel O'Brien attend?

Daniel O'Brien holds Master Of Arts (M.A.), English Literature (British And Commonwealth), 2:1 from The University Of Glasgow.

What skills is Daniel O'Brien known for?

Daniel O'Brien is listed with skills including Customer Service, Microsoft Office, Microsoft Word, Powerpoint, Research, Microsoft Excel, Risk Operations, and Investment Banking.

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