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Senior Software Engineer (Node), JavaScript SDK

Toronto, Ontario, Canada💼 Full-time💰 $200,000–$200,000🗓 2026-07-19 → 2026-07-22

Core

Building and maintaining JavaScript SDKs for Node.js, Bun, Deno, and Cloudflare Workers to empower developers with application monitoring tools.

Role type

Senior Software Engineer (JavaScript SDK)

Builds

JavaScript SDKs for modern server and edge runtimes

Domain

Developer tooling / Application monitoring / Server-side JavaScript

Deliverable

production ML models | product features

Required skills

TypeScript/JavaScript, Node.js, Bun, Deno, Cloudflare Workers, unit and integration testing, technical documentation, open-source collaboration

Preferred skills

WinterCG experience, OpenTelemetry instrumentation, open-source library maintenance, open-source committee engagement

Technologies

Node.js, Bun, Deno, Cloudflare Workers, TypeScript, OpenTelemetry

Responsibilities

Develop SDKs for various JavaScript runtimes, plan and ship code with end-to-end ownership, utilize AI tools for productivity, collaborate with open-source committees, assist customer operations with critical bugs

Seniority

Senior, hands-on IC

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