David Custer Email & Phone Number

David Custer

Technology Process Specialist: Telephony AV and Authentication Support at ManTech | Washington DC-Baltimore Area

David Custer Socials
About David Custer

David Hollister Custer is a seasoned Technology Process Specialist at ManTech, where he plays a pivotal role in enhancing Telephony AV and Authentication Support systems. With a strong foundation in IT support, David has successfully implemented the Tier 1 Support Team, taking ownership of building comprehensive documentation that streamlines processes and improves service delivery. His expertise in critical thinking and problem-solving has been instrumental in mentoring the next generation of Tier 1 support staff, ensuring they are well-equipped to handle the complexities of authentication and desktop support.

David's journey at ManTech has seen him promoted through the ranks, first to Tier 1 and 2 support roles, and then to his current position focused on IT Service Management (ITSM) optimization. His proficiency in tools such as Google Drive, MS Project, and Visio allows him to manage projects efficiently while fostering effective intercultural communication within diverse teams. David's commitment to customer service is evident in his approach to resolving issues, where he leverages his bilingual skills in English and Spanish to enhance user experience and support.

Currently, David is involved in key projects aimed at optimizing telephony systems and enhancing authentication protocols, ensuring that ManTech remains at the forefront of technological advancements in the industry. His passion for continuous improvement and documentation updates not only contributes to operational excellence but also positions him as a valuable asset in the ever-evolving landscape of IT support. Outside of work, David enjoys painting, cooking, and fitness, reflecting his well-rounded personality and dedication to mindfulness and creativity.

David Custer Work
1 experience icon

Technology Process Specialist: Telephony AV and Authentication Support at ManTech in January 2023 to Present

2 experience icon

Technical Support Specialist at Shipshape IT in June 2022 to November 2022

3 experience icon

Tier 2 Technician at Digital Industry, LLC in April 2019 to November 2022

See more

David Custer Skills

Google Drive

Google Workspace

Google

See more

About David Custer's Current Company
Frequently Asked Questions about David Custer

What is David Custer email address?

Email David Custer at [email protected] and [email protected]. This email is the most updated David Custer email found in 2026.

What is David Custer phone number?

David Custer phone number is +15713091189 and +15408829086.

How to contact David Custer?

To contact David Custer send an email to [email protected] or [email protected]. If you want to call David Custer try calling on +15713091189 and +15408829086.

What is David Custer net worth?

David Custer has an estimated net worth of $750,000 to $999,999

What company does David Custer work for?

David Custer works for ManTech

What is David Custer's role at ManTech?

David Custer is Technology Process Specialist: Telephony AV and Authentication Support

What industry does David Custer work in?

David Custer works in the It Services And It Consulting industry.

David Custer Email Addresses

Email David Custer at [email protected] and [email protected]. This email is the most updated David Custer email found in 2026.

David Custer Phone Numbers

David Custer phone number is +15713091189 and +15408829086.
Not the David Custer you were looking for?

Find personal and work emails for over 250M professionals.

Engage candidates 10x faster

Enjoy unlimited access and discover candidates outside of LinkedIn

Trusted by 1.4M users from 76% of Fortune 500 companies

Microsoft Tenstorrent Merck Rackspace WarnerMedia Societe Generale Yelp Google

The most accurate data ever

CCPA Compliant
GDPR Compliant
150M Personal Emails
200M Work Emails
100M Direct Dials
250M Professional Profiles
40M Company Profiles

Find anyone, anywhere
with ContactOut today

Making remote or global hires? Connecting
with key decision-makers? We can help.

  • 40 emails / month
  • 3 phone numbers / month
  • Works on standard LinkedIn only
  • Work emails, personal emails,
    mobile numbers
* 1 user per company limit

No credit card required

Try ContactOut for Free