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John Castillo Email & Phone Number

Director, Technical Solutions Consultant at Fiserv
Location: Houston, Texas, United States 1 work role
1 work email found @fiserv.com LinkedIn matched
✓ Verified July 2026 3 data sources Profile completeness 86%

Contact Signals · 1 work email

Work email j****@fiserv.com
LinkedIn Profile matched
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Current company
Fiserv
Role
Director, Technical Solutions Consultant
Location
Houston, Texas, United States
Company size
36173 employees

Who is John Castillo? Overview

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Quick answer

John Castillo is listed as Director, Technical Solutions Consultant at Fiserv, a with 36173 employees, based in Houston, Texas, United States. AeroLeads shows a work email signal at fiserv.com and a matched LinkedIn profile for John Castillo.

Company email context

Email format at Fiserv

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{first}.{last}@fiserv.com
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AeroLeads found 1 current-domain work email signal for John Castillo. Compare company email patterns before reaching out.

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Profile bio

About John Castillo

John Castillo is a Director, Technical Solutions Consultant at Fiserv. He possess expertise in data center, network engineering, disaster recovery, mpls, it management and 36 more skills. Colleagues describe him as "I worked with John on multiple projects. I always felt he exemplified the kind of colleague I liked to work with. He had a high level of technical, project and interpersonal skills. You could rely on his word. If he said something was going to happen it would either happen on schedule or you would learn early on of any issues while there was still time to stay on track. He was calm and measured when things went astray. He had that rare ability to make tough going as pleasant as it could… Show more"

Listed skills include Data Center, Network Engineering, Disaster Recovery, Mpls, and 37 others.

Current workplace

John Castillo's current company

Company context helps verify the profile and gives searchers a useful next step.

Fiserv
Fiserv
Director, Technical Solutions Consultant
Houston, TX, US
Website
fiserv.com
Employees
36173
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Company profile
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1 role

John Castillo work experience

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

  • Fiserv
    Director, Technical Solutions Consultant
    Fiserv
    Houston, Tx, Us
Team & coworkers

Colleagues at Fiserv

Other employees you can reach at fiserv.com. View company contacts for 36173 employees →

DJ Diana Jacobsen Diana Jacobsen Colleague at FiservOmaha, Nebraska, United States View → BF Brett Fisher Brett Fisher Colleague at FiservPittsburgh, Pennsylvania, United States View → RE Richard Erbes Richard Erbes Colleague at FiservMoorpark, California, United States View → NL Nymisha Lingamgunta Nymisha Lingamgunta Colleague at FiservChennai, Tamil Nadu, India View → ML Michael Lokowich Michael Lokowich Colleague at FiservGreater Minneapolis-St. Paul Area, United States View → CJ Charlie Johnson Charlie Johnson Colleague at FiservCharlotte, North Carolina, United States View → DM Deneen Misbrener Deneen Misbrener Colleague at FiservEnglewood, Colorado, United States View → SC Stephen Caskey Stephen Caskey Colleague at FiservOmaha Metropolitan Area, United States View → JP Jinsi Philip Jinsi Philip Colleague at FiservHunt Valley, Maryland, United States View → MB Matt Blum Matt Blum Colleague at FiservAtlanta Metropolitan Area, United States View →
FAQ

Frequently asked questions about John Castillo

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

What company does John Castillo work for?

John Castillo works for Fiserv.

What is John Castillo's role at Fiserv?

John Castillo is listed as Director, Technical Solutions Consultant at Fiserv.

What is John Castillo's email address?

AeroLeads has found 1 work email signal at @fiserv.com for John Castillo at Fiserv.

Where is John Castillo based?

John Castillo is based in Houston, Texas, United States while working with Fiserv.

What companies has John Castillo worked for?

John Castillo has worked for Fiserv.

Who are John Castillo's colleagues at Fiserv?

John Castillo's colleagues at Fiserv include Diana Jacobsen, Brett Fisher, Richard Erbes, Nymisha Lingamgunta, and Michael Lokowich.

How can I contact John Castillo?

You can use AeroLeads to view verified contact signals for John Castillo at Fiserv, including work email, phone, and LinkedIn data when available.

What skills is John Castillo known for?

John Castillo is listed with skills including Data Center, Network Engineering, Disaster Recovery, Mpls, It Management, Vendor Management, Network Design, and Frame Relay.

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