56K–74K EUR / year
Senior Software Engineer, Add-Ons
BackendRemote — belgium
Published on 2026-09-24
These details were extracted automatically from the original listing. They may not be complete or fully up to date — it's worth checking the original job post.
About this role
As a Senior Software Engineer, you will work on improving the Firefox add-ons ecosystem by building robust tools and systems for developers and reviewers. The role emphasizes delivering major features, maintaining engineering standards, and collaborating with various stakeholders. You will have the opportunity to modernize the platform and enhance user experience.
About the company
Mozilla builds open-source products and technologies, including Firefox, that prioritize privacy, security, and an open internet.
The team
Add-ons team
Stack
PythonDjangoMySQLReactTypeScript
What you'll do
- Deliver major features and architectural improvements
- Establish and maintain engineering standards
- Create robust observability systems
- Provide peer feedback and mentorship
- Build and improve deployment systems
What we're looking for
- Experience with Python/Django
- Experience in production software systems
- Strong CI/CD experience
- Knowledge of observability practices
- Ability to debug complex production issues
Nice to have
- Experience with Google Cloud and Kubernetes
- Contributions to open source projects
Benefits
- Generous performance-based bonus plans
- Rich medical, dental, and vision coverage
- Annual professional development budget
- Considerable paid parental leave