Dennis: Email & Phone Number

C12-Assistant Vice President - (Database, CyberArk, Mainframe ,Midrange, UNIX) at Citi|Taguig, National Capital Region, Philippines

Position:

C12-Assistant Vice President - (Database, CyberArk, Mainframe ,Midrange, UNIX) at Citi

Location:

Taguig, National Capital Region, Philippines

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Last updated: 2026-09-07

Updated: 2026-09-07

Found email addresses for Dennis:

Business emails:

**@citigroup.com

Personal emails:

d**************r@gmail.com

Found phone for Dennis:

+63-***-***-4633

A different Dennis?

Work Experience 8 years

C12-Assistant Vice President - (Database, CyberArk, Mainframe ,Midrange, UNIX) at Citi

Jul 2026 - Current

C11-Manager-ISA-(Mainframe-TSS,RACF|Midrange-STRATUS,UNISYS,TANDEM,AS400|UNIX) at Citi

Jan 2025 - Jul 2026

C10-Assistant Manager-ISA-(Mainframe-TSS,RACF|Midrange-STRATUS,UNISYS,TANDEM,AS400|UNIX) at Citi

Nov 2022 - Dec 2024

C09-Officer-Information Security Administrator Analyst 1- (GCG/GF/TPAM/Encryption) at Citi

Mar 2021 - Nov 2022

Software Engineer at Xorcas Corporation

Jan 2019 - Jul 2019

Software Engineer at Xorcas Corporation

Sep 2018 - Dec 2018

Dennis started working in 2018, then the employee has changed 1 company and 4 jobs. On average, Dennis works for one company for 1 year.

Their professional focus is Access Control, Administration, and Artificial Intelligence (AI) across 3 core areas.

Dennis holds Blockchain Technologies, ADG Verified in Adopt, and Broadcom Top Secret® for z/OS - Administrator - Foundations certifications.

Education

Bachelor of Science in Information System at De La Salle-College of Saint Benilde

Frequently Asked Questions

What is Dennis's email address?

SignalHire found verified email addresses for Dennis, both business and personal. Their business email is **@citigroup.com, and personal emails include d**************r@gmail.com.

What is Dennis's phone number?

SignalHire found a verified phone number for Dennis: +63-***-***-4633.

How do I contact Dennis at Citi?

You can reach Dennis 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 Dennis's professional background?

Dennis has 8 years of professional experience. They have held roles including C11-Manager-ISA-(Mainframe-TSS,RACF|Midrange-STRATUS,UNISYS,TANDEM,AS400|UNIX), C10-Assistant Manager-ISA-(Mainframe-TSS,RACF|Midrange-STRATUS,UNISYS,TANDEM,AS400|UNIX), and C09-Officer-Information Security Administrator Analyst 1- (GCG/GF/TPAM/Encryption) at companies such as Citi, Citi, and Citi. Their education includes Bachelor of Science in Information System from De La Salle-College of Saint Benilde.

Is Dennis's contact information up to date?

Yes. Dennis's SignalHire profile was last updated on 7 September 2026, reflecting their current position as C12-Assistant Vice President - (Database, CyberArk, Mainframe ,Midrange, UNIX) at Citi in New York, New York, United States.

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