Jerome Magnin
Gérant De Portefeuilles - Associé-Dirigeant at GEFIP
Greater Paris Metropolitan Region France
Summary
👤
Senior🎓
Top SchoolJerome Magnin is a seasoned portfolio manager and partner leading Gefip, a 40-year-old Paris-based asset management firm overseeing €500M and a family of long-running funds including the decades‑strong Gefip Patrimonial. Trained as an engineer at EPITA with a master's in financial engineering from EM Lyon, he blends quantitative research, bespoke software development and hands‑on trading to implement innovative European equity strategies. As Associate-Director he also runs the middle-office, IT and R&D functions, aligning systems and operational controls with portfolio goals. His technical chops extend beyond finance: he is an active contributor to the HAProxy open-source project, improving SSL/TLS, DNS and core stability—an unusual combination that informs robust infrastructure for trading operations. Colleagues know him for turning complex quantitative ideas into pragmatic, auditable tools that serve high-net-worth and institutional mandates.
8 years of coding experience
Ingenieur, Information Technology, Ingenieur, Information Technology at EPITAlycee la rochefoucauldMaster's degree, Ingenierie Financiere, Master's degree, Ingenierie Financiere at EM Lyon
Github Skills (13)
http10
ssl10
load-balancer10
tls1210
cprogramming-language10
haproxy10
tls1310
reverse-proxy9
debug9
proxy9
dns8
high-performance7
high-availability7
Programming languages (3)
Github contributions (5)
haproxy/haproxy
Oct 2019 - Jul 2022
HAProxy Load Balancer's development branch (mirror of git.haproxy.org)
Role in this project:
Back-end Developer
Back-end DeveloperContributions:68 comments, 25 issues in 2 years 9 months
Contributions summary:Jerome primarily contributed to bug fixes and minor enhancements within the HAProxy load balancer project. Their work focused on addressing issues related to SSL/TLS configurations, including the handling of ALPN, and ensuring correct header behavior. They also implemented changes in the core logic, fixing bugs related to DNS resolution and server state management, in addition to adding features to the sampling system. These changes suggest a focus on improving stability and functionality within the core HAProxy codebase.
proxycachingddos-mitigationhttp2ipv6
awslabs/consolidated-organizations-wide-cases-activity
Oct 2023 - Jan 2025
Contributions:13 pushes, 1 comment, 1 issue in 1 year 2 months
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