Senior Fullstack Engineer (Observability)

TL;DR

Senior Fullstack Engineer (Observability): Building and evolving fullstack features for Real User Monitoring (RUM) with an accent on high-volume telemetry ingestion, columnar storage, and real-time data exploration. Focus on designing performant query layers, optimizing high-cardinality data indexing, and creating intuitive visualization interfaces for debugging user behavior.

Location: Must be based in the US or Canada

Salary: $164,490 - $197,389 USD

Company

hirify.global is a remote-first, open-source powerhouse providing observability tools used by over 20 million users worldwide.

What you will do

• Build and evolve fullstack features for RUM, spanning backend services, APIs, storage systems, and frontend user experiences.
• Design systems that ingest, store, and query high-cardinality, high-volume telemetry data using columnar/analytical databases.
• Develop performant query layers and APIs that power real-time exploration of user sessions, traces, and events.
• Contribute to frontend applications that visualize RUM data to help users debug performance issues and understand behavior.
• Optimize data modeling and indexing strategies to ensure low-latency, cost-efficient analytics at scale.
• Collaborate with SDK engineers and cross-functional teams to deliver cohesive observability workflows.

Requirements

• 5+ years of fullstack engineering experience with strong backend fundamentals.
• Proficiency in Go (preferred), TypeScript, and React.
• Experience building or operating distributed systems in production (e.g., Kafka, ClickHouse, Cassandra, Postgres).
• Familiarity with cloud-native systems (Docker, Kubernetes, AWS, GCP, Azure).
• Experience working with high-throughput, high-cardinality data (logs, metrics, traces, events).
• Must be based in the US or Canada.

Nice to have

• Experience with browser or mobile instrumentation (RUM SDKs, telemetry collection).
• Mobile development experience (iOS or Android) or familiarity with mobile performance.
• Contributions to OpenTelemetry or other observability open-source projects.
• Experience building developer-facing platforms or observability products.

Culture & Benefits

• 100% remote, global collaborative culture with high trust and low ego.
• Competitive compensation including Restricted Stock Units (RSUs).
• Global annual leave policy of 30 days, including 3 company shutdown days.
• Company-funded budget for modern AI coding assistants and access to frontier models.
• Transparent communication, autonomy, and defined career growth pathways.
• In-person onboarding for new hires to facilitate integration.