Jeff Gulbronson
Senior Staff Software Engineer at Skyvern (YC S23)
Canada
Summary
🤩
Rockstar🎓
Top SchoolJeff Gulbronson is a Senior Staff Software Engineer with 12 years of experience building scalable back-end systems and leading migrations from monoliths to services. At Faire he led service splits, launched an inference service with the ML team to streamline model deployment and consolidate a cost-saving Feature Store, and drove international and high-availability launches as an early backend hire. A prolific open-source contributor, Jeff has improved widely used projects like SQLDelight and Square’s Wire—adding cross-dialect SQL features and refining protobuf code generation—demonstrating deep expertise in databases, codegen, and protocol buffers. He combines hands-on coding with strong hiring and mentoring (300+ interviews across roles) and a proven track record of reducing latency and operational cost. Based in Canada, he pairs pragmatic engineering with systems-level thinking and a knack for shipping high-impact infrastructure quietly but repeatedly.
12 years of coding experience
8 years of employment as a software developer
Newmarket High SchoolBachelor of Software Engineering Software Engineering, Bachelor of Software Engineering Software Engineering at University of Waterloo
English
Stackoverflow
11reputation
12kreached
0answers
1question
Github Skills (21)
kotlin10
postgresql10
mysql10
protocol-buffers10
testing10
java10
webservice10
javas10
code-generation10
sql10
sqldelight10
grpc10
query-optimization9
databases9
http9
Programming languages (9)
Github contributions (5)
cashapp/misk
Dec 2017 - Nov 2022
Microservice Kontainer
Role in this project:
Back-end Developer
Back-end DeveloperContributions:10 reviews, 41 commits, 53 PRs in 5 years
Contributions summary:Jeff contributed to the `misk` project by implementing features and improvements related to web services and database integration. Their work includes adding support for HTTP PATCH method, expanding database support to PostgreSQL, and improving action scope functionalities. They also added and refined testing, including tests for PostgreSQL, which indicates a focus on ensuring code quality and robustness.
dockermicroservicemicroservices
square/wire
Mar 2017 - Oct 2018
gRPC and protocol buffers for Android, Kotlin, Swift and Java.
Role in this project:Back-end Developer
Back-end DeveloperContributions:8 reviews, 2 commits, 8 PRs in 1 year 7 months
Contributions summary:Jeff focused on improving the `wire` library, a gRPC and protocol buffers implementation. Their contributions include refactoring code, specifically removing obsolete references, and adding features to the Kotlin code generator. The user also optimized packed scalar list sizes and addressed code generation issues, demonstrating expertise in protocol buffer handling and code generation. They also worked on fixing RealGrpcCall timeouts.
protocol-buffersprotobufgrpcandroidbuffers
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