• Companies
  • News
By technology
  • Python6k
  • AWS4.6k
  • Docker3.6k
  • Kubernetes3k
  • PostgreSQL2.6k
  • C++1.7k
  • Java1.7k
By category
  • Backend Developer9.4k
  • DevOps Engineer2.4k
  • Data Engineer2.2k
  • Machine Learning Engineer2.1k
  • Embedded Engineer1.8k
  • Full Stack Developer1.5k
  • Mobile Developer620
Work mode
  • On-site15.2k
  • Remote6k
  • Hybrid2k
Job type
  • Full-time22.4k
  • Part-time393
  • Contract339
  • Freelance122
  • internship5
  • seasonal1
Experience
  • Entry level
  • Mid level
  • Senior
  • Staff+
  • Engineering management

The job board for developers. Find your next role at companies that value great engineering.

© 2023-2026 . All rights reserved.

Logos provided by Logo.dev
All jobs

Contract Staff Software Engineer-Bug Burndown

Mozilla · Remote Germany

Extracted from the posting

Base
Not stated
Remote
Remote
Stack
C++, JavaScript, Firefox, Gecko

Diagnose and fix Firefox WebCompat bugs in a large backlog using web development skills (HTML, CSS, JavaScript) and AI-assisted tools. Work with browser devtools to triage site-breakage reports and write interventions.

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.

Technologies

C++JavaScriptFirefoxGecko
Mozilla
Mozilla

Job details

TypeContract
Work ModeRemote
LevelMid Level
LocationRemote Germany
PostedOct 20, 2026
Apply Now

Related jobs

Voyager Technologies, Inc.

Systems Engineer II – Systems

Voyager Technologies, Inc.
🇺🇸 Folsom, CA +1On-site · Full-timeLinux · Python · C++
Upstart

Senior Engineering Manager, Borrower Experience

Upstart
United States | RemoteRemote · Full-timeAI
Samsara

Director, GTM AI Engineering

Samsara
Remote - USRemote · Full-timeIoT · cloud platforms · data analytics