Dustin Haefele-tschanz
Senior Software Engineer at Spreedly
Athens-Clarke County Unified Government, Georgia, United States
Summary
🤩
Rockstar🎓
Top SchoolDustin Haefele-tschanz is a Lead Site Reliability Engineer with seven years of engineering experience who drives operational uptime and scalable infrastructure at Spreedly. Transitioning from a chemical/process engineering background, he blends hands-on cloud expertise (AWS Certified Developer) and GraphQL proficiency with a practical, data-driven approach honed in manufacturing. He led Spreedly through a critical database migration and stronger observability practices while managing senior engineering teams to improve long-term application stability. An active contributor to payment tooling—having extended the well-known ActiveMerchant library to support multiple gateways—he brings real-world payments integration experience to reliability work. Dustin’s uncommon mix of PLC/robotics optimization and modern SRE practice makes him adept at solving both hardware-adjacent and cloud-native reliability challenges.
7 years of coding experience
10 years of employment as a software developer
Bachelor of Science (B.S.) Chemical Engineering, Bachelor of Science (B.S.) Chemical Engineering at University of Nebraska-LincolnFull Stack Web Development, Full Stack Web Development at Thinkful
Stackoverflow
1reputation
0reached
0answers
0questions
Github Skills (8)
testing10
unit-testing10
payment-integration10
payment-gateway10
test-unit10
unit-test10
ruby10
api-design9
Programming languages (6)
Github contributions (5)
activemerchant/active_merchant
Jun 2021 - Jul 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:
Backend Developer
Backend DeveloperContributions:1 release, 165 reviews, 4 commits in 1 month
Contributions summary:Dustin's contributions focused on enhancing the `active_merchant` library, a Ruby-based payment abstraction layer. The commits primarily involve adding support for new features and fields related to specific payment gateways like Mercado Pago, usaEpay, and Mundipagg. The changes include modifications to existing gateway logic, test cases, and configuration options to accommodate the new functionalities. These updates improve the library's integration capabilities with different payment processors.
ecommerceaimadyenpayment-processingpayment
thinkful-ei-dragonfly/stay-informed-api
Aug 2019 - Aug 2019
Contributions:44 commits, 21 PRs, 27 pushes in 16 days
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