Christian Pelczarski is a Senior Web Application Engineer with 14 years of hands-on experience building Ruby on Rails applications, specializing in PostgreSQL and Hotwire. He founded Minimul in 2005 and now applies his product and integration expertise at BLDUP, Inc., often rescuing complex QuickBooks integration projects and bringing apps to the Intuit Marketplace. A prolific open-source contributor, he extended the popular quickbooks-ruby library to support QuickBooks Online V3 entities, auto-document numbering, and transaction-level tax—demonstrating deep domain knowledge of accounting APIs. Based in Nelson, New Hampshire, he combines entrepreneurial grit with practical engineering discipline, able to translate accountant workflows into reliable, auditable integrations.
14 years of coding experience
18 years of employment as a software developer
B.S., B.S. at Millersville University of Pennsylvania
Contributions:66 commits, 22 PRs, 17 pushes in 3 years 2 months
Contributions summary:Christian primarily focused on enhancing the `quickbooks-ruby` library to support the QuickBooks Online REST API V3. They implemented support for new entities like `Vendor`, `Employee`, and `CreditMemo`, adding the necessary model definitions, validations, and service methods for creating, querying, and updating these entities. They also introduced features such as auto-document numbering for invoices and transaction-level tax support, demonstrating a strong understanding of the QuickBooks API and Ruby development.
Contributions:94 commits, 62 pushes in 10 years 9 months
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Christian Pelczarski - Senior Web Application Engineer