John Crygier
Sr. Director - Application Development Lead
Lake in the Hills, Illinois, United States
Summary
👤
Senior🎓
Top SchoolJohn Crygier is a seasoned software leader with 20+ years of hands-on development and 11 years in senior roles, currently serving as Sr. Director of Application Development at Gallagher where he led a major migration from SharePoint/SSRS to .NET Core, Angular and embedded PowerBI. He specializes in designing scalable enterprise architectures using open-source frameworks like Spring and .NET Core, and has a track record of introducing new technologies (React/React Native, Docker, SAML2, JWT/OAuth) and DevOps practices across organizations. Comfortable spanning full stack, infrastructure, and identity systems, he has built custom solutions for complex problems—everything from custom DSLs and rule engines to offline-first mobile platforms. A pragmatic architect who learns by reading code and shipping proofs-of-concept, he combines deep technical craftsmanship with product-minded leadership and process governance.
11 years of coding experience
16 years of employment as a software developer
BS, Computer Engineering, BS, Computer Engineering at Purdue UniversityMS, Information Systems, MS, Information Systems at Roosevelt University
Github Skills (23)
jpa10
graphql-java9
graphql9
agent8
distributed-tracing8
apm8
monitoring8
hardware7
nodemcu6
java6
distributed-systems5
javascript4
electron3
redux2
authentication2
Programming languages (2)
Github contributions (5)
jcrygier/graphql-jpa
Sep 2015 - Jun 2018
JPA Implementation of GraphQL (builds on graphql-java)
Contributions:42 commits, 24 PRs, 36 pushes in 2 years 9 months
graphqlgraphql-javajpagraphql-server
jcrygier/NodeMCUSimulator
Feb 2016 - Aug 2016
Simple Java based simulator for the NodeMCU hardware.
Contributions:10 commits, 1 PR, 6 pushes in 6 months
hardwarejavanodemcu
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