Functional Software, Inc. logo

Senior Software Engineer (Frameworks), JavaScript SDK

Job Overview

Location

Toronto, Ontario, Canada

Job Type

Full-time

Category

Software Engineering

Date Posted

April 26, 2026

Full Job Description

📋 Description

  • As a Senior Software Engineer on the JavaScript SDK team at Sentry, you will play a pivotal role in shaping the future of developer tooling by building and enhancing SDKs that empower millions of developers worldwide to write better, more reliable software.
  • Your day-to-day work will involve deep engagement with modern JavaScript frameworks including React, Next.js, Vue, Nuxt, NestJS, and Hono, where you will design, implement, test, and document robust SDK features while leveraging AI tools to boost productivity and innovation.
  • You will join a collaborative, high-impact team at Sentry, a company trusted by industry leaders like Disney, Microsoft, and Atlassian, operating in a hybrid model with in-office anchor days in Toronto to foster meaningful collaboration and innovation.
  • This role offers the opportunity to grow as a technical leader, contribute to open-source standards through engagement with TC39 and OpenTelemetry, and directly influence the evolution of JavaScript development practices while solving real-world problems alongside a passionate engineering team.

Skills & Technologies

JavaScript
TypeScript
React
Vue.js
Next.js
Senior
Hybrid

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About Functional Software, Inc.

Functional Software, Inc. operates the Sentry platform, providing real-time application performance and error monitoring for developers. It tracks crashes, performance bottlenecks, and releases across web, mobile, and server applications, offering stack traces, release health, and alerting to speed debugging. Supporting languages like JavaScript, Python, and Go, it integrates with GitHub, Slack, and major DevOps tools. The company distributes its service as both SaaS and self-hosted open-source software, helping engineering teams improve code quality and user experience.

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