Remote opportunity at
MozillaSenior Software Engineer, Firefox Security
Mozilla Corporation operates as a technology enterprise backed by a non-profit foundation, focusing on developing open-source software such as the Firefox browser to serve global internet…
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About This Role
Mozilla Corporation operates as a technology enterprise backed by a non-profit foundation, focusing on developing open-source software such as the Firefox browser to serve global internet users. The organization seeks a Senior Software Engineer for the Firefox Security group to build, test, and release security capabilities while advancing platform architecture across multiple operating systems. This position suits a low-level systems programmer interested in hardening native codebases and addressing complex multi-threaded…
Job Description
Mozilla Corporation operates as a technology enterprise backed by a non-profit foundation, focusing on developing open-source software such as the Firefox browser to serve global internet users. The organization seeks a Senior Software Engineer for the Firefox Security group to build, test, and release security capabilities while advancing platform architecture across multiple operating systems. This position suits a low-level systems programmer interested in hardening native codebases and addressing complex multi-threaded challenges.
In this capacity, the professional will design enterprise security features, establish privilege isolation boundaries, refine cryptographic protocols, and investigate critical vulnerabilities alongside distributed teams. The company provides a remote working arrangement supported by wellness days, home office funds, retirement contributions, and performance-based bonuses.
Responsibilities
- Design and ship security and hardening features for enterprise users
- Drive improvements to core security architecture across multiple operating systems
- Refine security mechanisms including cryptographic protocols, WebPKI, and security-sensitive web APIs
- Investigate security issues, discover root causes, and deliver maintainable fixes
- Resolve stability, performance, correctness, and memory utilization challenges in a complex multi-threaded environment
Requirements
- Minimum of three years of systems programming experience in low-level software engineering
- Strong proficiency in C and/or C++ languages
- Solid understanding of software security fundamentals
- Experience diagnosing and resolving issues in cross-platform native applications
- Familiarity with web technologies such as HTML, CSS, and JavaScript
Qualifications
- Prior interest or experience working with Rust
- Ability to operate effectively inside extensive multi-language codebases
Core Skills
Benefits
- Performance-based bonus plans
- Retirement contributions featuring 100% immediate vesting
- Quarterly all-company wellness days
- Country-specific holidays plus a dedicated day off for birthdays
- One-time home office stipend
- Annual professional development budget
- Quarterly well-being stipend
- Paid parental leave
- Employee referral bonus program
Frequently Asked Questions
Answers are based only on the employer’s listing; where it doesn’t say, neither do we.
Is this position remote?
Yes, the posting lists the remote status as remote.
What are the core technical requirements for this role?
Candidates must have at least three years of low-level software engineering experience, strong proficiency in C and/or C++, and a solid grasp of security fundamentals.
What salary does Mozilla offer for this position?
The general salary is not stated, though the hiring range for remote Germany is specified as €68,000 to €91,000 EUR.
Sample Interview Questions
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