---
title: 'Senior Software Engineer (Node), JavaScript SDK at Sentry'
canonical: 'https://feeny.ai/job/senior-software-engineer-node-javascript-sdk-sentry-toronto-w2091cd8nyak'
type: 'job'
last_seen: '2026-09-11'
---

# Senior Software Engineer (Node), JavaScript SDK at Sentry

- **Company:** Sentry
- **Location:** Toronto, Canada
- **Employment:** full-time
- **Work type:** hybrid
- **Posted:** 2026-04-24
- **Last confirmed live:** 2026-09-11
- **Apply:** https://jobs.ashbyhq.com/sentry/01e24f35-a936-4dd1-a700-31e872c50da8

## Job description

## About Sentry

Software runs the world and the pace is faster than ever. Sentry helps developers fix errors and performance issues before users notice, so teams can spend less time firefighting and more time building. Trusted by 200,000+ organizations, Sentry is today’s application monitoring standard and our team is building its AI-native future.

## About this role

Are you ready to redefine the future of JavaScript development? Are you a seasoned JavaScript expert who gets a thrill from tackling complex challenges across the entire JavaScript ecosystem? Do you believe that AI can be a powerful partner in crafting elegant, high-impact code? If you're ready to leave the mundane behind and join a team that's shaping the tools used by millions of developers globally, we've got an opportunity for you at Sentry. This isn't your typical Senior Software Engineer position. As a key member of our growing JavaScript SDK team, you'll be at the forefront of innovation, working on everything from our cutting-edge SDKs for Node.js, Bun, Deno, Cloudflare Workers, and other modern server runtimes. You won't just be maintaining code; you'll be pushing the boundaries of what's possible in developer tooling across the rapidly evolving server-side JavaScript landscape.

In this role you will Join our JavaScript SDK team and get ready to build the future. You'll be at the forefront, working on:

- A Universe of JavaScript Challenges: Dive deep into our extensive suite of JavaScript SDKs, with a sharp focus on server-side and edge runtimes — from the battle-tested Node.js ecosystem to cutting-edge alternatives like Bun and Deno, and distributed edge environments like Cloudflare Workers. Your work will directly empower millions of developers to build better, more reliable software, no matter which runtime powers their stack
- End-to-End Ownership: We believe in giving our engineers the autonomy to see their vision through. You'll have the freedom to plan, implement, and ship your code, from writing robust unit and integration tests to crafting crystal-clear documentation that educates both our team and our customers
- The AI-Powered Developer Experience: We're committed to leveraging the latest advancements to work smarter, not harder. You'll utilize AI tools to supercharge your productivity and focus on what truly matters: solving complex problems and delivering exceptional value
- A Voice in the Open-Source Community: We're passionate about open source — it's in our DNA. You'll have the chance to collaborate with influential organizations and committees such as TC39, the Node.js core team, and the OpenTelemetry SIG, representing Sentry and helping to steer the future of JavaScript standards and runtime interoperability
- Direct Impact and Connection: Say goodbye to layers of bureaucracy. You'll be on the front lines, assisting our Customer Operations team to squash critical bugs and interacting directly with our vibrant user base on GitHub and at industry conferences

You'll love this role if you

- Are a craftsperson who takes immense pride in building features that are not only functional but a delight to use
- Are a developer at heart, driven to create exceptional tools for your peers
- Thrive in a modern, fast-paced environment where rapid iteration and shipping code are celebrated
- Are excited about contributing to a globally recognized open-source project full-time
- Flourish in a collaborative setting, surrounded by thoughtful engineers who inspire each other to new heights

## Qualifications

- At least 5 years of experience as a Software Engineer, web developer, or a similar role
- Deep expertise in developing web applications, libraries, or SDKs using TypeScript/JavaScript
- Hands-on experience with Node.js and meaningful exposure to one or more modern server runtimes such as Bun, Deno, or Cloudflare Workers — with a solid understanding of how they differ in module systems, APIs, performance characteristics, and deployment models
- Exceptional written and verbal communication skills in English
- You're based in the Toronto, Canada area or are excited about the prospect of relocating to this thriving tech hub

Bonus points for:

- Experience working with WinterCG, the Web-interoperable Runtimes Community Group, or other runtime interoperability initiatives
- Familiarity with OpenTelemetry instrumentation in server-side or edge environments
- A history of contributing to or maintaining open-source libraries
- Experience engaging with open-source committees or working groups

If you're ready to make your mark on the developer world, work with cutting-edge technology, and be a part of a company that's as invested in your growth as you are, we encourage you to apply.

The base salary range (or hourly wage range, if applicable) that Sentry reasonably expects to pay for this position is CAD $200,000 to $295,000. A successful candidate’s actual base salary (or hourly wage) amount will be determined by a variety of relevant factors including, without limitation, the candidate’s work location, education, work and other relevant experience, skills, and job-related knowledge. A successful candidate will be eligible to participate in Sentry’s employee benefit plans/programs applicable to the candidate’s position (including incentive compensation, equity grants, paid time off, and group health insurance coverage). See [Sentry Benefits](https://sentry.io/careers/) for more details about the Company’s benefit plans/programs.

## Equal Opportunity at Sentry

Sentry is committed to providing equal employment opportunities to its employees and candidates for employment regardless of race, color, ancestry, religion, sex, national origin, sexual orientation, age, citizenship, marital status, disability, gender identity, veteran status, or other legally-protected characteristic. This commitment includes the provision of reasonable accommodations to employees and candidates for employment with physical or mental disabilities who require such accommodations in order to (a) perform the essential functions of their jobs, or (b) seek employment with Sentry. We strive to build a diverse team, with an inclusive culture where every teammate can thrive. Sentry is an open-source company because we believe that everyone, everywhere, should have the ability and tools to make great software. Software should be accessible. That starts with making our industry accessible. If you need assistance or an accommodation due to a disability, you may contact us at accommodations@sentry.io. Want to learn more about how Sentry handles applicant data? Get the details in our [Applicant Privacy Policy](https://sentry.io/careers/applicantprivacy/).

## About Sentry

## Company Overview
- **One-liner**: Sentry is the leading application performance monitoring and error-tracking platform that helps developers diagnose, fix, and optimize code in real-time.
- **Entity Type**: Private (Series E)
- **Headquarters**: San Francisco, California, USA
- **Founded**: 2012
- **Founders**: David Cramer, Chris Jennings

## Core Business
- **Primary industry**: Application Performance Monitoring (APM) and Error Tracking Software
- **Target customers**: B2B; developers and engineering teams at organizations of all sizes, from startups to large enterprises (200K+ organizations)
- **Mission or purpose**: To give every developer the tools to build better software, faster, by making debugging and performance monitoring accessible and indispensable.

## Products & Services
- **Sentry Error Tracking**: The core product — real-time error monitoring that captures, aggregates, and surfaces software bugs across 100+ coding languages and frameworks. [sentry.io](https://sentry.io/welcome/)
- **Sentry Performance Monitoring**: Traces slow transactions, API calls, and database queries to help developers optimize application speed and reliability. [sentry.io](https://sentry.io/welcome/)
- **Sentry Session Replay**: Video-like replays of user sessions to see exactly what happened before, during, and after an error. [sentry.io](https://sentry.io/welcome/)
- **Sentry Profiling**: Continuous code profiling to identify performance bottlenecks at the function level. [sentry.io](https://sentry.io/welcome/)
- **Sentry Crash Reporting (Cocoa/Android)**: Native SDKs for mobile error tracking and performance monitoring. [sentry.io](https://sentry.io/welcome/)
- **Seer (AI Debugging Agent)**: An AI-powered tool that uses Sentry context (logs, commits, traces) to automatically root-cause issues and generate merge-ready patches. [sentry.io](https://sentry.io/welcome/)
- **Sentry MCP Server**: Integrates with coding agents to bring full debugging context directly into the developer's workflow. [sentry.io](https://sentry.io/welcome/)

## Market Standing
- **Valuation/Market Cap**: Not publicly disclosed (last known funding round was $217M total raised)
- **Key Metric**: $217M total funding raised across 6 rounds; processes 190B+ events daily; serves 200K+ customers and 4M+ total users across 146 countries [sentry.io](https://sentry.io/about/)
- **Notable Investors/Partners**: Backed by prominent venture capital firms (specific names not listed on the about page, but the company has raised significant capital). Key integrations include GitHub, Slack, Jira, and Linear. [sentry.io](https://sentry.io/welcome/)
- **Growth Signals**: Acquired Codecov in December 2022 to expand into code coverage; processes 790B+ events per month; has 200+ employees across offices in San Francisco, Vienna, Toronto, Amsterdam, New York, and Sydney. [sentry.io](https://sentry.io/about/)

## Competitive Advantages
- **Developer-First DNA**: Built by developers for developers, with an open-source heritage that fosters deep trust and community adoption.
- **Unified Observability Platform**: Uniquely connects errors, logs, session replays, traces, profiles, and metrics under a single trace ID, providing end-to-end context that competitors like Datadog or New Relic offer as separate products.
- **AI-Native Debugging**: Seer, the AI debugger, goes beyond simple alerting to automatically root-cause issues and generate patches, a significant moat in the AI-assisted development space.
- **Massive Scale & Community**: Loved by millions of developers and 200K organizations, with 190B+ events processed daily, creating a powerful network effect and data advantage for AI models. [sentry.io](https://sentry.io/about/)

## Strategic Focus
- **AI-Powered Developer Tools**: Deep investment in AI (Seer, AI code review, AI evals) to move from passive monitoring to proactive debugging and automated fixing.
- **Unified Observability**: Continuing to break down silos between errors, performance, logs, and replays into a single, trace-connected experience.
- **Platform Expansion**: Growing beyond error tracking into a full-stack observability and developer productivity platform, including code coverage (via Codecov acquisition) and AI-assisted development.
- **Enterprise Scale**: Building out capabilities for large organizations (enterprise product marketing, solutions engineering, security compliance) while maintaining a strong developer experience.

## Why Work Here
- **Culture & Values**: Emphasizes "pixels matter" (attention to detail), constructive feedback, iteration, and valuing people from diverse backgrounds. The culture is described as relatively small, fast-growing, and highly influential. [sentry.io](https://sentry.io/careers/)
- **Remote/Hybrid Policy**: Offers roles across multiple global offices (San Francisco, Toronto, Vienna, Amsterdam, New York, Sydney) with a mix of in-office and remote positions. The careers page lists specific locations for each role. [sentry.io](https://sentry.io/careers/)
- **Notable Perks**: Competitive compensation + equity, flexible PTO, paid parental leave, medical/dental/vision insurance, 401k plan (US), commuter benefits, professional development stipend, charitable matching program, and a well-stocked office (including "a minimum of six different brands of sparkling water"). [sentry.io](https://sentry.io/careers/)
- **Engineering Culture**: High ownership and autonomy; engineers influence product, brand, and culture. The company is known for shipping high-quality code and has a strong open-source ethos. [sentry.io](https://sentry.io/careers/)
- **Diversity & Inclusion**: Committed to equal employment opportunity and providing reasonable accommodations. Explicitly states that software should be accessible, starting with making the industry accessible. [sentry.io](https://sentry.io/careers/)

## Sources
1. [sentry.io](https://sentry.io/about/)
2. [sentry.io](https://sentry.io/careers/)
3. [sentry.io](https://sentry.io/welcome/)
4. [jobs.ashbyhq.com](https://jobs.ashbyhq.com/sentry)
5. [greatplacetowork.com](https://www.greatplacetowork.com/certified-company/7024898)

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