Baptiste Pernet-mugnier
Senior Software Developer at Upgrade, Inc.
Montreal, Quebec, Canada
Summary
🤩
Rockstar🎓
Top SchoolBaptiste Pernet-mugnier is a senior software developer based in Montreal with 14 years of hands-on experience building high-availability distributed systems, full-stack applications, and production-ready services. He has led architecture and migrations at scale at companies like Amazon and Stellar Labs and now contributes to core systems at Upgrade, blending Java/SpringBoot, AWS, and both SQL and NoSQL databases. Equally comfortable in embedded and real-time contexts as in microservices and web front-ends, he pairs deep technical breadth (C/C++, Python, NodeJS, Angular/Vue) with pragmatic engineering practices around testing, CI/CD, and code review. Known for mentoring teams and evangelizing best practices, he drives sustainable architecture choices that reduce operational risk and complexity. An unconventional thread in his background is extended world travel and early robotics research, which shaped his curiosity for systems that must operate reliably in unpredictable environments.
14 years of coding experience
14 years of employment as a software developer
Master, electronics and informatics, Master, electronics and informatics at Télécom Paris
French, English, Spanish, Japanese
Stackoverflow
3,354reputation
1.8mreached
94answers
47questions
Github Skills (101)
swagger10
annotation-processor10
openapi10
jackson10
oai10
json-api10
java10
springfox10
spring-data-rest10
spring-boot10
jackson-databind10
spring10
jsonlines10
jupyterlab10
streaming-api9
Programming languages (8)
Github contributions (5)
sp4ce/jsonlines
Jun 2023 - Nov 2025
Documentation for the JSON Lines text file format
Contributions:1 review, 1 PR, 42 pushes in 2 years 5 months
sp4ce/javascript-lcs
May 2012 - Mar 2015
Contributions:8 commits, 2 pushes in 2 years 10 months
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