Contract Staff Software Engineer – WebCompat & Bug Triage

Canada
Remote
Posted Oct 21, 2026
1 position

Opens an external site

Employment type: Contract
Experience level: Senior · 5+ years
Posting language: English
Working hours: 40 hours per week

Job summary

You will diagnose and verify long-tail WebCompat bugs to reduce the backlog of site-breakage issues. Additionally, you will write interventions and AI-assisted fixes to resolve reported breakages.

Job details

You will help reduce Firefox’s WebCompat bug backlog by finishing or verifying the diagnosis of the long tail of site-breakage bugs, and by writing interventions or simple fixes (often with AI assistance). You turn a large queue of reported breakages into diagnosed, actionable, or fixed bugs. Responsibilities Finish diagnosing, or verify the diagnosis of, long-tail WebCompat bugs. Write WebCompat interventions where appropriate. Write simple fixes (AI-assisted) and land them. Reproduce and triage incoming site-breakage reports. Required qualifications Solid web development (HTML, CSS, JavaScript) and comfort debugging real-world site breakage. Fluent with browser devtools and cross-browser diagnosis. Comfortable using AI tooling to speed up diagnosis and fixes. Preferred Gecko knowledge is a strong plus (but can be taught). Prior WebCompat or web-standards experience.

What you’ll do

You will diagnose and verify long-tail WebCompat bugs to reduce the backlog of site-breakage issues. Additionally, you will write interventions and AI-assisted fixes to resolve reported breakages.

Requirements

Candidates must have solid web development skills in HTML, CSS, and JavaScript, along with experience in browser debugging. Familiarity with AI tooling and prior experience with WebCompat or web standards is highly preferred.