Pierre Nespo
Engineering Manager at Fleetio
Saint-Lambert, Quebec, Canada
Summary
🤩
Rockstar🎓
Top SchoolPierre Nespo is an action-biased engineering manager with 15 years of experience building and scaling payments and subscription systems across high-growth SaaS companies. He has grown and led cross-functional teams at Shopify, Recharge, and Fleetio, delivering payment features like 3D Secure, dynamic checkout, and card payments for marketplaces while maintaining strong technical involvement from design to code review. A hands-on leader and coach, he creates psychologically safe teams through timely, actionable feedback and has a track record of hiring, mentoring, and turning small teams into resilient organisations. He is an active maintainer and contributor to the well-known Active Merchant payment library, demonstrating deep domain expertise in gateway integrations and long-term maintainability. Based in Saint-Lambert, Quebec, he pairs practical engineering craft with product-driven roadmap leadership and a preference for shipping industry-standard, testable, and extensible systems. An early career background in teaching and hands-on ops gives him a pragmatic bent for tooling, observability and developer experience that often goes unnoticed.
14 years of coding experience
16 years of employment as a software developer
EpitechAssociate's degree, Computer Science, Associate's degree, Computer Science at CIEFAhigh school degree, Cooking and Related Culinary Arts, General, high school degree, Cooking and Related Culinary Arts, General at École hôtelière de Paris
French, English, Spanish
Github Skills (11)
testing10
apim10
activemerchant10
payment-integration10
payment-gateway10
api10
ruby10
cybersource9
test-unit9
unit-test9
unit-testing9
Programming languages (6)
Github contributions (5)
activemerchant/offsite_payments
Dec 2016 - Jan 2021
A simple and unified API to handle dozens of different offsite payment pages.
Role in this project:
Back-end Developer
Back-end DeveloperContributions:4 releases, 4 reviews, 80 commits in 4 years 1 month
Contributions summary:Pierre primarily contributed to improving the functionality and maintainability of the `activemerchant/offsite_payments` repository. Their work involved modifying existing code to align with payment gateway API changes and addressing specific issues such as updating checksum verification, removing deprecated features, and adding new parameters for payment gateway integrations (e.g., Paytm, BitPay, Realex). These changes demonstrate a focus on maintaining the integration of various payment services and ensuring their ongoing compatibility.
apipaymentspayment-gatewayadyenpayment-processing
activemerchant/active_merchant
Jan 2018 - May 2021
Active Merchant is a simple payment abstraction library extracted from Shopify. The aim of the project is to feel natural to Ruby users and to abstract as many parts as possible away from the user to offer a consistent interface across all supported gateways.
Role in this project:Back-end Developer
Back-end DeveloperContributions:8 releases, 21 reviews, 33 commits in 3 years 4 months
Contributions summary:Pierre primarily contributed to the Active Merchant library by implementing new features and fixing issues related to payment gateway integrations. Their work included adding support for Payflow capture transactions, integrating 3D Secure (3DS) functionality for Orbital, and addressing specific requirements for Cybersource. Furthermore, they updated the library version and made minor fixes to handle edge cases like empty email addresses. These changes involved modifications to the core library, test files, and specific gateway implementations.
ecommerceaimadyenpayment-processingpayment
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