Léo Dubois

Staff backend — metrics pipelines at scale

Staff Software Engineer, Metrics Backend at DatadogParis, FR · Europe/Paris11 yrs · IC5

ScreeningWarmSourcedOpenUS citizen

AI match score

87/ 100

Strong

Last touched4w ago

OwnerTomás Herrera

Comp expectation$270,000–$360,000

Flight risklow

Current role

Staff Software Engineer, Metrics Backend · Jun 2022—Present (3 yr 10 mo)

Datadog

Observability · enterprise · Team of 11

Owned headcount, roadmap, and delivery for the team.

Shipped the v2 write path for the billing system
33× throughput vs. v1 with tighter SLOs
Rewrote the idempotency layer, moved from a single-writer to a partitioned design, zero revenue loss at cutover.
Authored the RFC and led the migration to event-sourced domain models
36 services migrated in 6 months
Removed a longstanding class of race conditions; improved audit coverage by an order of magnitude.
Onboarded async job infrastructure platform-wide
Handling 71M jobs/day at steady state
Consolidated on Temporal; decommissioned three bespoke queue systems; reduced on-call pages 40%.

DA
Staff Software Engineer, Metrics BackendJun 2022—Present
Datadog · Paris, FR · 3 yr 10 mo
HA
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