Active3w ago

Contract Staff Software Engineer – WebCompat & Bug Triage

Mozilla·📍 Canada

Employment

Full-Time

Work mode

Remote

Experience

SENIOR LEVEL

Salary

CA$110,000–CA$199,850 / year · Jobiba est.

Market pay estimate

CA$110,000–CA$199,850 / year for comparable Software Engineer roles in Canada. Estimated from 125 similar postings (high confidence) — not stated by the employer.

Salary →

Overview Job pulse Requirements Company Similar jobs

Role overview

Job description

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.

About this listing

Source: Mozilla's official careers site (via Greenhouse) · last confirmed on the source 29 Oct 2026
Posted 6 Oct 2026

Jobiba does not charge job seekers. Never pay to apply or share OTPs, card or bank details.

Is this job safe?How we check jobs Report this job

Role market pulse

How Software Engineer demand looks in Canada

72/100 · rising

Live jobs

281

Posted 30d

106

30d movement

+8.2%

Remote share

30.2%

Salary listed

75.8%

Salary trend 1Y

Not enough history

More Software Engineer jobs →Salary intelligence →Career path →Tailor resume →Compare role demand →

What they are looking for

Skills & requirements

javascript →ai →

Department · Firefox

Hiring company

Mozilla

Technology

The independent browser that has your back. Firefox blocks trackers, has a free built-in VPN, puts you in control of AI, and never sells your personal data.

Company profile →Open jobs →Company site ↗

Related opportunities

Similar active roles

Relevant, currently active roles for this market.

All jobs →

Contract Staff Software Engineer-FireFox Layout

Mozilla

1mo ago

Canada· Remote

Top 25% pay

C$185K – C$217.7K/yr

● Top 25% pay versus similar roles

You will take on the ongoing maintenance and routine engineering work in Firefox’s Layout area (CSS, page layout, APZ, text, images). Working independently at a tech-lead level, you keep the Layout code healthy. Responsibilities Own day-to-day Layout maintenance: fix bugs and…

View role →

Contract Staff Software Engineer - Performance Graphics (C++,Rust, WebGL)

Mozilla

1mo ago

Canada· Remote

Above median pay

C$145.8K – C$186.2K/yr

● Strong current hiring demand for this role

The role You will take on the ongoing maintenance and engineering work in Firefox’s Graphics area (rendering, compositing, images, canvas, WebGL). You help keep the graphics code healthy. Responsibilities Own day-to-day Graphics maintenance: bug fixes, regressions, test upkeep,…

View role →

Staff Software Engineer, Foundations - CAN

Vanta

2mo ago

Toronto, Ontario, Canada· Full-time· Remote

C$110K – C$199.9K/yr · Jobiba est.Estimated from 125 similar postings (high confidence) — not stated by the employer.

● Strong current hiring demand for this role

At Vanta, our mission is to help businesses earn and prove trust. We believe that security should be monitored and verified continuously, and we empower companies to practice better security and prove it with ease. Vanta has a kind and talented team, and while some have prior…

View role →

Senior Staff Software Engineer

Diligent Corporation

23 days ago

Vancouver, British Columbia, Canada

Above median pay

C$151K – C$189K/yr

● Strong current hiring demand for this role

Position Overview As a Senior Staff Software Engineer on Diligent's Platform AI team, based out of our technical center of excellence in Vancouver, you will drive the architecture and technical direction of the services that bring AI research and models into production across…

View role →

Development Director (Contract)

Kabam

1mo ago

Vancouver, BC, Canada· Contract· Hybrid

C$40 – C$50/hr

At Kabam, we’re constantly raising the bar of excellence in free-to-play gaming. We hire for passion and diversity so that we can triumph in our collective skill. Our teams are made up of a fusion of personalities and interests bound together by a collaborative nature,…

View role →

Software Engineer II

Diligent Corporation

3mo ago

Vancouver, British Columbia, Canada· Full-time

Below typical pay

C$90K – C$107K/yr

● Strong current hiring demand for this role

Platform administration isn't the part of the product anyone screenshots for a demo. Nobody's writing a blog post about your identity provisioning flow. But it's the thing every other team at Diligent quietly depends on more than any other dev team in the company and when it…

View role →

🔔 Get job alerts

New Software Engineer jobs in Canada, straight to your inbox.

No spam · Unsubscribe anytime