Jon Hartzler
Staff Software Engineer at Brightside Health
South Bend-Mishawaka Region United States
Summary
👤
Senior🎓
Top SchoolJon Hartzler is a Staff Software Engineer with over 20 years of experience building backend systems, integrations, and scalable web applications. He specializes in AWS-native data integration pipelines using Node and Python, front-end work with React/Gatsby and ElasticSearch, and brings deep Ruby on Rails expertise honed over 12+ years. Jon has led large-scale projects—designing systems to ingest tens of millions of legacy records into centralized GraphQL APIs—and has a track record of turning messy archival and copyright workflows into automated, auditable processes. Comfortable with agile teams and cross-functional collaboration, he excels at requirements gathering with non-technical stakeholders and writes simple, test-driven code. A lifelong learner, he prefers practical, maintainable solutions and has repeatedly modernized development practices and infrastructure in academic and edtech settings.
12 years of coding experience
21 years of employment as a software developer
Bachelor's degree Computer Science, Bachelor's degree Computer Science at Goshen College
Spanish
Github Skills (41)
marble9
aws-serverless9
imgix9
api8
aws-lambda8
image-server8
iiif8
react-redux8
image-processing8
redux7
workspace7
libvips7
collections7
aws-apigateway6
administration6
Programming languages (5)
Github contributions (5)
ndlib/marble-manifest-pipeline
Oct 2018 - Sep 2021
Responsible for building IIIF manifests
Contributions:61 reviews, 257 PRs, 479 pushes in 2 years 11 months
iiifmanifests
ndlib/api
Sep 2019 - Jun 2022
The api.library.nd.edu code base
Contributions:1 review, 4 PRs, 4 pushes in 2 years 9 months
apibase-codeapi-libraryedu
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