Senior FullStack Engineer – Real User Monitoring, RUM

. Build and evolve fullstack RUM features spanning frontend user experiences, backend services, APIs, and storage systems .

Posted 9/25/2026full-timeRemote • CanadaSenior💰 CA$164,490 - CA$197,389 per yearWebsite

Tools & technologies

ApacheAWSAzureCassandraCloudDistributed SystemsDockerGoogle Cloud PlatformKafkaKubernetesPostgresReactTypeScriptGo

Key responsibilities & impact

Build and evolve fullstack RUM features spanning frontend user experiences, backend services, APIs, and storage systems
Design and implement systems that ingest, store, and query high-cardinality, high-volume telemetry data using columnar/analytical databases
Develop performant query layers and APIs for real-time exploration of user sessions, traces, and events
Contribute to frontend applications that visualize RUM data and help users debug performance issues and understand user behavior
Work on data modeling, indexing strategies, and query optimization for low-latency, cost-efficient analytics at scale
Collaborate with browser and mobile SDK engineers on data ingestion and schema evolution
Own projects from design and implementation through deployment, monitoring, and iteration
Break down complex problems into incremental deliverables and iterate based on feedback
Ensure quality through testing, system observability, documentation, and smooth upgrade paths
Collaborate with backend, frontend, product, and solutions engineering teams
Support teammates, participate in technical design discussions, and help shape the RUM roadmap

What you’ll need

5+ years of fullstack engineering experience with strong frontend fundamentals
Frontend experience with TypeScript and React
Backend experience; Go is preferred
Experience building or operating distributed systems in production, such as Kafka, WarpStream, Apache Pinot, ClickHouse, Cassandra, or Postgres
Familiarity with cloud-native systems: Docker, Kubernetes, AWS, GCP, or Azure
Experience working with high-throughput, high-cardinality data, including logs, metrics, traces, or events
Strong understanding of data modeling, query optimization, and performance tradeoffs
Experience designing and building APIs and distributed services
Experience building data-heavy UIs, such as dashboards, query tools, or debugging interfaces
Familiarity with observability concepts and/or OpenTelemetry
Strong communication skills and ability to work in a remote, distributed team
Pragmatic, self-driven, and comfortable navigating ambiguity
Customer-focused mindset with a passion for developer experience

Comp & perks