Founder
Current
Dec 2021 - Present
AeroLeads people directory · profile
Patrick Grenning Email & Phone Number
Founder
at
OptionCharts
1 work email found
@fiserv.com
5 phones found area 847 and 630
LinkedIn matched
✓ Verified Jul 2026
4 data sources
Profile completeness 100%
Who is Patrick Grenning? Overview
A concise factual answer block for searchers comparing this professional profile.
Quick answer
Patrick Grenning is listed as Founder at OptionCharts, based in Greater Chicago Area, United States. AeroLeads shows a work email signal at fiserv.com, phone signal with area code 847, 630, and a matched LinkedIn profile for Patrick Grenning.
Patrick Grenning previously worked as Senior Software Development Engineer at Fiserv and Software Development Engineer at Fiserv. Patrick Grenning holds Bachelors Of Science, Economics from Purdue University.
Company email context
Email format at OptionCharts
This section adds company-level context without repeating Patrick Grenning's masked contact details.
{first}.{last}@fiserv.com
86% confidence
AeroLeads found 1 current-domain work email signal for Patrick Grenning. Compare company email patterns before reaching out.
Profile bio
About Patrick Grenning
Patrick Grenning is a Founder at OptionCharts. He possess expertise in software engineering, ruby, sql, software development, web development and 20 more skills.
Listed skills include Software Engineering, Ruby, Sql, Software Development, and 21 others.
Current workplace
Patrick Grenning's current company
Company context helps verify the profile and gives searchers a useful next step.
6 roles
Patrick Grenning work experience
A career timeline built from the work history available for this profile.
Senior Software Development Engineer
Implemented payment methods and features for CommerceHub, Fiserv’s global omnichannel payments platform, utilizing the Java/Spring stack.
Apr 2021 - May 2024
Software Development Engineer
Jul 2019 - Apr 2021
Software Development Engineer
Developed features and support for payments gateway. Built software to support digital wallets and other payment methods.
Mar 2018 - Jul 2019
Software Engineer
Developed and maintained software for Bluepay's KPI and reporting systems as a member of the Operational Engineering Team.
Apr 2015 - Mar 2018
Product And Marketing Manager
At Hydro Flow Products I directed marketing operations and managed software projects. I spearheaded the redesign of the company's e-commerce website, hosemonster.com, and the launch of Fire Pump Tester Software™ - a web application for fire pump testing data collection and reporting.
Mar 2010 - Jul 2014
2 education records
Patrick Grenning education
Bachelors Of Science, Economics
Purdue University
Education record
Dev Bootcamp
FAQ
Frequently asked questions about Patrick Grenning
Quick answers generated from the profile data available on this page.
What company does Patrick Grenning work for?
Patrick Grenning works for OptionCharts.
What is Patrick Grenning's role at OptionCharts?
Patrick Grenning is listed as Founder at OptionCharts.
What is Patrick Grenning's email address?
AeroLeads has found 1 work email signal at @fiserv.com for Patrick Grenning at OptionCharts.
What is Patrick Grenning's phone number?
AeroLeads has found 5 phone signal(s) with area code 847, 630 for Patrick Grenning at OptionCharts.
Where is Patrick Grenning based?
Patrick Grenning is based in Greater Chicago Area, United States while working with OptionCharts.
What companies has Patrick Grenning worked for?
Patrick Grenning has worked for Optioncharts, Fiserv, First Data Corporation, Bluepay Processing, and The Hose Monster Company.
How can I contact Patrick Grenning?
You can use AeroLeads to view verified contact signals for Patrick Grenning at OptionCharts, including work email, phone, and LinkedIn data when available.
What schools did Patrick Grenning attend?
Patrick Grenning holds Bachelors Of Science, Economics from Purdue University.
What skills is Patrick Grenning known for?
Patrick Grenning is listed with skills including Software Engineering, Ruby, Sql, Software Development, Web Development, Test Driven Development, Object Oriented Design, and Technical Writing.
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