Daniel OSullivan: Email & Phone Number

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Lead Software Engineer at Mastercard|Greater Vancouver Metropolitan Area, Canada

Position:

Lead Software Engineer at Mastercard

Location:

Greater Vancouver Metropolitan Area, Canada

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Last updated: 2026-06-18

Updated: 2026-06-18

Found email addresses for Daniel OSullivan:

Business emails:

d**************n@mastercard.com

Personal emails:

d*********************e@gmail.com

Found phones for Daniel OSullivan:

+1-902-***-**45,

+1-306-***-**63,

+1-204-***-**85

A different Daniel OSullivan?

Work Experience 10 years

Lead Software Engineer at Mastercard

Nov 2024 - Current

Senior Software Engineer at Mastercard

Jul 2023 - Nov 2024

Software Engineer at Accela

Nov 2021 - May 2023

Software Engineer at JRI America Inc.

Jun 2019 - Oct 2021

Junior Software Engineer at JRI America Inc.

Jul 2017 - Jun 2019

Software Developer Internship at Continuum Commerce Solutions

Jan 2016 - Apr 2016

Daniel OSullivan started working in 2016, then the employee has changed 3 companies and 4 jobs. On average, Daniel OSullivan works for one company for 1 year 6 months.

Daniel is proficient in English and Irish. Their professional focus is Agile Environment, Agile Methodologies, and Algorithms across 3 core areas.

Education

Bachelor of Science (B.Sc.) at Institute of Technology, Tralee

Frequently Asked Questions

What is Daniel OSullivan's email address?

SignalHire found verified email addresses for Daniel OSullivan, both business and personal. Their business email is d**************n@mastercard.com, and personal emails include d*********************e@gmail.com.

What is Daniel OSullivan's phone number?

SignalHire found multiple verified phone numbers for Daniel OSullivan: +1-902-***-**45, +1-306-***-**63, and +1-204-***-**85.

How do I contact Daniel OSullivan at Mastercard?

You can reach Daniel OSullivan through SignalHire by unlocking their verified email and direct phone number (free signup, no credit card needed). SignalHire is the fastest route if you need their contact details immediately.

What is Daniel OSullivan's professional background?

Daniel OSullivan has 10 years of professional experience. They have held roles including Senior Software Engineer, Software Engineer, and Software Engineer at companies such as Mastercard, Accela, and JRI America Inc.. Their education includes Bachelor of Science (B.Sc.) from Institute of Technology, Tralee.

Is Daniel OSullivan's contact information up to date?

Yes. Daniel OSullivan's SignalHire profile was last updated on 18 June 2026, reflecting their current position as Lead Software Engineer at Mastercard in Purchase, NY, United States.

Daniel OSullivan Namesakes

Name

Company

Position

Dan OSullivan

Barnum Financial Group

Financial Advisor

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Dan OSullivan

The New York Times

Color Services Representative

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Daniel OSullivan

Hays

Recruitment Partner

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