Julien Billon is a Senior Software Engineer based in Nice, France, with roughly 6 years of senior-level experience and a long history at Amadeus before joining Datadog in 2021. He has progressed through roles spanning enterprise service bus work to revenue accounting and inventory systems, indicating deep expertise in large-scale, mission-critical backend systems for travel and observability domains. Julien combines pragmatic engineering with system design chops gained from more than a decade working on complex enterprise platforms, making him comfortable across distributed systems and data-intensive applications. His career shows both stability and upward mobility, moving from hands-on developer roles into principal and senior engineering positions. Fluent in navigating large organizations, he brings institutional knowledge of legacy integration alongside modern cloud-native practices at Datadog.
6 years of coding experience
13 years of employment as a software developer
École de technologie supérieure (ÉTS)
Engineer's degree, Engineer's degree at Université de Technologie de Compiègne (UTC)
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Julien Billon - Senior Software Engineer at Datadog