Mozilla

4 weeks ago

Senior Software Engineer, Firefox Security

✓ Verified Job

Canonical indexed version, validated from employer's careers page.

Source: Company careers pageValidated by: Fursa AI

Last checked: 5 hours agoStatus: Live

Job Summary

Join Mozilla as a Senior Software Engineer focused on Firefox security. You’ll advance security architecture and cryptography, design and implement web platform security features, improve browser reliability and performance in a multi-threaded environment, collaborate across teams on security initiatives, and contribute to technical design and planning for security-related projects.

Location: Netherlands

Workplace: Remote

Employment Type: Full time

Job Function: Software Engineering

Key Responsibilities

•Advance Firefox's security architecture and cryptography stack by contributing to improvements in core security systems, focusing on cryptographic protocols, WebPKI, and security-sensitive web APIs.
•Design and implement web platform security features by shipping standards-based, secure, interoperable implementations across Firefox in collaboration with teammates and the broader web community.
•Improve browser reliability, performance, and resource efficiency by investigating issues affecting stability, correctness, and memory usage in a complex multi-threaded browser environment.
•Collaborate on security initiatives by partnering with engineers across teams to identify, prioritize, and address security issues, including debugging and root cause analysis.
•Contribute to technical design and planning by participating in design reviews and project planning for security initiatives, evaluating tradeoffs, and informing engineering decisions.

Pay and Benefits

Perks:Health InsuranceDentalVisionHome OfficeLearning BudgetWell-being StipendParental Leave

Key Requirements

•Strong software engineering and security fundamentals with proficiency in C/C++ and a solid understanding of cryptographic protocols and implementations.
•Experience building and maintaining complex software systems in large-scale or security-sensitive environments.
•Strong debugging and problem-solving skills in multi-threaded, cross-platform native applications, including memory-related challenges.
•Collaborative and effective communicator with distributed teams and clear technical communication.
•Growth mindset with willingness to deepen expertise in browser security, cryptography, and systems programming.

Experience:SecuritySoftwareWeb platformBrowser security

Skills:C++RustCryptographyWeb platformMulti-threadingMemory managementDebuggingCommunication

Languages:English

Tech Stack:C++RustCryptographyWebPKIWeb Platform securityMemoryMultithreading

Company Brief

Mozilla

Mozilla is a mission-driven organization that builds open-source internet products (notably the Firefox browser) and advocates for an open, private, and secure web through software, research, and community programs.

Industry: Enterprise Software

Company Size: Large (251 to 1,000 employees)

Growth: Nonprofit & NGO

Headquarters: San Francisco, United States

Founded: 1998

Glassdoor: 2.9

Website LinkedIn Glassdoor

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Mozilla

4 weeks ago

Senior Software Engineer, Firefox Security

✓ Verified Job

Canonical indexed version, validated from employer's careers page.

Source: Company careers pageValidated by: Fursa AI

Last checked: 5 hours agoStatus: Live

Job Summary

Location: Netherlands

Workplace: Remote

Employment Type: Full time

Job Function: Software Engineering

Key Responsibilities

•Advance Firefox's security architecture and cryptography stack by contributing to improvements in core security systems, focusing on cryptographic protocols, WebPKI, and security-sensitive web APIs.
•Design and implement web platform security features by shipping standards-based, secure, interoperable implementations across Firefox in collaboration with teammates and the broader web community.
•Improve browser reliability, performance, and resource efficiency by investigating issues affecting stability, correctness, and memory usage in a complex multi-threaded browser environment.
•Collaborate on security initiatives by partnering with engineers across teams to identify, prioritize, and address security issues, including debugging and root cause analysis.
•Contribute to technical design and planning by participating in design reviews and project planning for security initiatives, evaluating tradeoffs, and informing engineering decisions.

Pay and Benefits

Perks:Health InsuranceDentalVisionHome OfficeLearning BudgetWell-being StipendParental Leave

Key Requirements

•Strong software engineering and security fundamentals with proficiency in C/C++ and a solid understanding of cryptographic protocols and implementations.
•Experience building and maintaining complex software systems in large-scale or security-sensitive environments.
•Strong debugging and problem-solving skills in multi-threaded, cross-platform native applications, including memory-related challenges.
•Collaborative and effective communicator with distributed teams and clear technical communication.
•Growth mindset with willingness to deepen expertise in browser security, cryptography, and systems programming.

Experience:SecuritySoftwareWeb platformBrowser security

Skills:C++RustCryptographyWeb platformMulti-threadingMemory managementDebuggingCommunication

Languages:English

Tech Stack:C++RustCryptographyWebPKIWeb Platform securityMemoryMultithreading

Company Brief

Mozilla

Industry: Enterprise Software

Company Size: Large (251 to 1,000 employees)

Growth: Nonprofit & NGO

Headquarters: San Francisco, United States

Founded: 1998

Glassdoor: 2.9

Website LinkedIn Glassdoor