Gary Sieling
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Gary Sieling Email & Phone Number

Principal Software Engineer at Pinnacle 21 - Certara at Certara
Location: Ambler, Pennsylvania, United States 10 work roles 1 school
1 work email found @certara.com 4 phones found area 610 LinkedIn matched
✓ Verified May 2026 4 data sources Profile completeness 100%

Contact Signals · 1 work email · 4 phones

Work email g****@certara.com
Direct phone (610) ***-****
LinkedIn Profile matched
3 free lookups remaining · No credit card
Current company
Role
Principal Software Engineer at Pinnacle 21 - Certara
Location
Ambler, Pennsylvania, United States

Who is Gary Sieling? Overview

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Quick answer

Gary Sieling is listed as Principal Software Engineer at Pinnacle 21 - Certara at Certara, based in Ambler, Pennsylvania, United States. AeroLeads shows a work email signal at certara.com, phone signal with area code 610, and a matched LinkedIn profile for Gary Sieling.

Gary Sieling previously worked as Principal Software Engineer at Certara and Senior Staff Software Engineer at Certara. Gary Sieling holds Bachelor Of Science, Computer Science from Rochester Institute Of Technology.

Company email context

Email format at Certara

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{first}.{last}@certara.com
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AeroLeads found 1 current-domain work email signal for Gary Sieling. Compare company email patterns before reaching out.

Profile bio

About Gary Sieling

Product focused principal engineer

Listed skills include Software Development, C#, Databases, Sharepoint, and 42 others.

Current workplace

Gary Sieling's current company

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

Certara
Certara
Principal Software Engineer at Pinnacle 21 - Certara
Princeton, NJ
Website
AeroLeads page
10 roles

Gary Sieling work experience

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

Principal Software Engineer

Current

Radnor, Pennsylvania, US

Oct 2024 - Present

Senior Staff Software Engineer

Radnor, Pennsylvania, US

Work on strategic product initiatives

Nov 2021 - Oct 2024

Staff Software Engineer

Current

Blue Bell, Pennsylvania, US

Work with product team to shape and bring forth new productsE.g: https://www.certara.com/pressrelease/certara-introduces-update-of-pinnacle-21-enterprise-and-new-pinnacle-21-data-exchange-module/Note: acquired by Certara

May 2020 - Present

Senior Software Engineer

Element 84

- Leveraged CloudFormation, Docker, and Python to create reproducible, testable, and scalable deployment automation for remote sensing data pipelines.- Leveraged S3 to enforce compliance and access controls to high volume, mission critical scientific data.- Deployed Elasticsearch clusters and custom Cloudwatch dashboards to monitor environment end to end.

Apr 2019 - May 2020

Senior Software Architect

Wingspan, A Quintilesims Company

Team lead for software engineering team that builds and supports life sciences SaaS products.Notes* Interview dozens of Software Engineers, DevOps, Project Management, and Graphic Design candidates * Provide engineering leadership during rapid growth* Research & Make technology decisions for IQVIA content management platform* Evaluate and recommend.

Mar 2017 - Apr 2019

Software Architect

Wingspan Technology
Dec 2012 - Apr 2019

Senior Software Engineer

Wingspan Technology

Work on almost all Wingspan products, reporting to Wingspan CTO, using a wide range of technology: Sharepoint and Documentum integration products, and custom verticals for regulated industries.Responsibilities, at different times:* Responsible for on-time project delivery of several consulting projects* Team lead for multiple consulting engagements ranging.

Feb 2009 - Mar 2017

Software Engineer

Toronto, ON, CA

Software developer on a web application to help law firms do research for marketing.Worked on a C#/VB.NET application which used SQL Server Reporting Services + Oracle to render custom business intelligence reports across the legal industry.Responsibilities/accomplishments:* Took ownership of a legacy codebase feared by senior engineers* Significantly.

Mar 2006 - Feb 2009

Software Engineer

Toronto, ON, CA

Worked on desktop client Bankruptcy software - team of two, as an intern, then full time.* Worked to fix client tickets in large codebase* Tested/quality improvements to e-filing for bankruptcy in most states* Developed a system for automated testing against a complex form printing process

Mar 2005 - Aug 2005

Software Engineer

Toronto, ON, CA

Intern for Jury Instruction Software project* Quickly learned a new language (Delphi) * Responsible for fixing many defects reported by clients* Rewrote a custom library which generated RTF files to remove many customer tickets

Mar 2004 - Aug 2004
Team & coworkers

Colleagues at Certara

Other employees you can reach at certara.com. View company contacts →

1 education record

Gary Sieling education

  • Rochester Institute Of Technology
    Rochester Institute Of Technology
    Computer Science
FAQ

Frequently asked questions about Gary Sieling

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

What company does Gary Sieling work for?

Gary Sieling works for Certara.

What is Gary Sieling's role at Certara?

Gary Sieling is listed as Principal Software Engineer at Pinnacle 21 - Certara at Certara.

What is Gary Sieling's email address?

AeroLeads has found 1 work email signal at @certara.com for Gary Sieling at Certara.

What is Gary Sieling's phone number?

AeroLeads has found 4 phone signal(s) with area code 610 for Gary Sieling at Certara.

Where is Gary Sieling based?

Gary Sieling is based in Ambler, Pennsylvania, United States while working with Certara.

What companies has Gary Sieling worked for?

Gary Sieling has worked for Certara, Pinnacle 21, Element 84, Wingspan, A Quintilesims Company, and Wingspan Technology.

Who are Gary Sieling's colleagues at Certara?

Gary Sieling's colleagues at Certara include David Morton, Jaap Mandema, Todd Dumas, Nethra Vathi, and Lhea Angolluan-Oblima.

How can I contact Gary Sieling?

You can use AeroLeads to view verified contact signals for Gary Sieling at Certara, including work email, phone, and LinkedIn data when available.

What schools did Gary Sieling attend?

Gary Sieling holds Bachelor Of Science, Computer Science from Rochester Institute Of Technology.

What skills is Gary Sieling known for?

Gary Sieling is listed with skills including Software Development, C#, Databases, Sharepoint, Javascript, Java, Web Applications, and Postgresql.

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