Nicolas Janin
Freelance Software Engineer at NJ dev
Nogent-sur-Marne, Île-de-France, France
Summary
👤
Senior🎓
Top SchoolNicolas Janin is a seasoned freelance software engineer based near Paris with eight years in consulting and over two decades of professional experience across embedded, telecom, medical, finance, and instrumentation domains. He delivers high-performance systems in Kotlin, Rust, Java, Python and C++, including sole maintenance of a 100kLOC C++ codebase for a high-speed catenary wear measurement system and a privacy-preserving patient-matching algorithm used in cancer research. As a former CTO and project leader, he combines hands-on coding with architecture design, team leadership and roadmap ownership, having led teams up to 15 engineers and defined real-time, quality-driven software platforms. Comfortable from firmware to distributed backends, he has repeatedly balanced performance, safety and regulatory constraints (medical and military projects) while optimizing architectures for hard realtime needs. Based in Nogent-sur-Marne, he prefers complex, mission-critical problems and is known for turning legacy, large-scale codebases into reliable, maintainable systems.
9 years of coding experience
22 years of employment as a software developer
Baccalauréat C, Baccalauréat C at Lycée Gabriel FauréDEA (~M. Sc.), Physics, DEA (~M. Sc.), Physics at Université Paris Sud (Paris XI)Exchange program, Physics, Exchange program, Physics at The University of KentUniversity of Kent
French, English, German
Stackoverflow
37reputation
11kreached
3answers
8questions
Github Skills (39)
python8
numerical-methods8
numerical-integration8
linear-algebra7
calculator7
calc7
machine-learning7
gpu7
deep-learning7
lu-decomposition7
error-correction6
database-design6
data-integrity6
apache-spark6
hadoop-yarn6
Programming languages (5)
Github contributions (5)
NJdevPro/Behaviour-Tree
Jul 2017 - Nov 2022
Contributions:13 commits, 18 pushes, 1 branch in 5 years 4 months
NJdevPro/Closure-Table
Mar 2019 - Nov 2022
Contributions:15 commits, 14 pushes, 1 branch in 3 years 8 months
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