Chief Financial Officer
Sierra Bullets And Barnes Bullets
AeroLeads people directory · profile
John O'Brien Email & Phone Number
Chief Financial Officer
at
Sierra Bullets and Barnes Bullets
1 work email found
@sierrabullets.com
LinkedIn matched
✓ Verified Jun 2026
4 data sources
Profile completeness 100%
Current company
Role
Chief Financial Officer
Location
Greater Columbia, Missouri Area, United States
Who is John O'Brien? Overview
A concise factual answer block for searchers comparing this professional profile.
Quick answer
John O'Brien is listed as Chief Financial Officer at Sierra Bullets and Barnes Bullets, based in Greater Columbia, Missouri Area, United States. AeroLeads shows a work email signal at sierrabullets.com and a matched LinkedIn profile for John O'Brien.
John O'Brien previously worked as Chief Financial Officer at Sierra Bullets, Llc and Multi Plant Controller - U.S. Breakers at Schneider Electric. John O'Brien holds Bachelors, Accounting And Management from Purdue University Daniels School Of Business.
Company email context
Email format at Sierra Bullets and Barnes Bullets
This section adds company-level context without repeating John O'Brien's masked contact details.
{first_initial}{last}@sierrabullets.com
76% confidence
AeroLeads found 1 current-domain work email signal for John O'Brien. Compare company email patterns before reaching out.
Profile bio
About John O'Brien
John O'Brien is a Chief Financial Officer at Sierra Bullets and Barnes Bullets. He possess expertise in manufacturing, supply chain, sap, inventory management, process improvement and 9 more skills.
Listed skills include Manufacturing, Supply Chain, Sap, Inventory Management, and 10 others.
Current workplace
John O'Brien's current company
Company context helps verify the profile and gives searchers a useful next step.
11 roles
John O'Brien work experience
A career timeline built from the work history available for this profile.
Chief Financial Officer
Current
Jan 2019 - Present
Multi Plant Controller - U.S. Breakers
Controller over the US breaker plants for Schneider Electric.
Oct 2017 - Jan 2019
Manufacturing Manager
Manage assembly, fabrication, paintline, toolroom, and maintenance with ~300 employees.
Mar 2015 - Sep 2017
Manufacturing Engineering Manager
Manager of continuous improvement and lean manufacturing of a 400 sqft facility.
Aug 2016 - Mar 2017
Project Manager - Industrial Strategy
Project manager in industrial strategy of manufacturing and warehousing for Global Supply Chain North America.
Aug 2012 - Mar 2015
Senior Financial Analyst Global Supply Chain
Supply chain and logistics inventory analyst for approximately 52 locations in 6 countries as well as supporting a resale group sourcing Schneider Electric facilities outside the US.
Jan 2011 - Aug 2012
Senior Accountant
Sole financial support for a transformer manufacturing facility that went through an SAP implementation. Also was the financial analyst for the 12 standard product plants.
Dec 2009 - Dec 2010
Accountant
Provided financial support for a panel-board manufacturing facility with a specialty in costing.
Jun 2009 - Dec 2009
Intern
Preformed test of controls in the Health industry as well as prepared tax filings.
May 2008 - Aug 2008
Cost Planning
Lead cost planner for a minor model change project and supported large model changes.
May 2007 - Aug 2007
2 education records
John O'Brien education
Bachelors, Accounting And Management
Bachelor Of Business Administration; Bachelor Of Business Administration, Accounting; Management
FAQ
Frequently asked questions about John O'Brien
Quick answers generated from the profile data available on this page.
What company does John O'Brien work for?
John O'Brien works for Sierra Bullets and Barnes Bullets.
What is John O'Brien's role at Sierra Bullets and Barnes Bullets?
John O'Brien is listed as Chief Financial Officer at Sierra Bullets and Barnes Bullets.
What is John O'Brien's email address?
AeroLeads has found 1 work email signal at @sierrabullets.com for John O'Brien at Sierra Bullets and Barnes Bullets.
Where is John O'Brien based?
John O'Brien is based in Greater Columbia, Missouri Area, United States while working with Sierra Bullets and Barnes Bullets.
What companies has John O'Brien worked for?
John O'Brien has worked for Sierra Bullets And Barnes Bullets, Sierra Bullets, Llc, Schneider Electric, Blue & Co., Llc, and Toyota.
How can I contact John O'Brien?
You can use AeroLeads to view verified contact signals for John O'Brien at Sierra Bullets and Barnes Bullets, including work email, phone, and LinkedIn data when available.
What schools did John O'Brien attend?
John O'Brien holds Bachelors, Accounting And Management from Purdue University Daniels School Of Business.
What skills is John O'Brien known for?
John O'Brien is listed with skills including Manufacturing, Supply Chain, Sap, Inventory Management, Process Improvement, Strategy, Continuous Improvement, and Internal Controls.
Find 750M verified contacts
Search by job title, company, industry, location, and seniority. Export verified B2B contact data when you need it.
Start free trialPeople with similar names
Check these profiles if this is not the John O'Brien you were looking for.
View similar profiles
