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Senior Software Engineer, Performance / Ingénieur(e) Logiciel(le) Senior, Performance

Montreal💼 Full-time🗓 2026-09-10 → 2026-09-30

Core

Senior backend engineer owning performance as a production engineering discipline for a multi-CSP platform, profiling live systems and shipping fixes to ensure low latency and high throughput.

Role type

Senior IC backend software engineer (performance)

Builds

Multi-CSP API platform normalizing CAMARA Network APIs for enterprise customers

Domain

Telecom infrastructure, Cloud Service Providers (CSP), Distributed Systems

Required skills

Go, Java, Python, Node, distributed systems, concurrency, caching, HTTP/REST API performance, eBPF profiling, flame graph analysis, production observability, CI/CD integration, capacity modeling

Preferred skills

SRE background, chaos engineering, high-volume API platforms, telecom integrations, CAMARA standards

Technologies

eBPF, New Relic, Datadog, Kubernetes, gRPC, Kafka, PostgreSQL

Responsibilities

Profile and root-cause performance issues in production using flame graphs and distributed tracing; Ship performance fixes to production code covering concurrency, connection management, and caching; Drive tail-latency (P90/P99) optimization; Own error budgets and performance SLOs; Design load-generation and failure-injection infrastructure; Integrate automated performance-regression detection into CI/CD; Model and forecast capacity for multi-CSP API traffic; Lead post-incident reviews to produce architectural fixes.

Seniority

Senior, hands-on IC

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