Guillaume Quintard is a technical director and seasoned software engineer with 13 years of experience building high-performance caching and media systems, now based in Palo Alto. He has deep Varnish expertise—demonstrated by long-term contributions to Varnish Software and upstream work on Magento’s Varnish integration—and a track record of improving core caching behavior for low-latency large-object streaming. His background spans streaming and embedded multimedia (from GStreamer and set-top box middleware to MP4/FLV vmods), combined with hands-on devops and integration work across nginx, Docker, and Ansible. At Netflix and Varnish Software Group he bridged engineering and pre-sales, turning complex architectural requirements into deployable, operational products. Guillaume’s uncommon mix of low-level performance tuning and customer-facing technical leadership makes him adept at solving both code-level bottlenecks and production deployment challenges.
13 years of coding experience
15 years of employment as a software developer
master computer science signal processing networks, master computer science signal processing networks at Telecom Bretagne
Embedded programming specialization embedded multimedia, Embedded programming specialization embedded multimedia at Télécom Paris
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Role in this project:
Back-end Developer
Contributions:5 reviews, 1 commit, 13 PRs in 1 day
Contributions summary:Guillaume primarily contributed to the Magento 2 project by updating Varnish configuration and removing references to outdated Varnish versions. They modified various files to ensure compatibility with Varnish 6, including configuration files, tests, and console commands. The user also added and removed deprecated constants related to Varnish and improved debugging output in the Varnish configuration.
Contributions:3 releases, 56 commits, 4 PRs in 1 year
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Guillaume Quintard - Technical Director at Varnish Software