RemoteLeaf Logo
Log in Sign up

Senior Software Engineer, Firefox Security

1 month, 4 weeks ago
Finland
Full-time
Senior
Software Engineer
Software Development
Encryption Rust
Apply Now
Mozilla

Mozilla

Mozilla, the maker of Firefox, is a non-profit organization ensuring an open, safe, and accessible internet for all users worldwide.

Internet Software & Services
251-1K
Founded 2005
$2M raised
View All Jobs 29

Description

  • Advance Firefox’s security architecture and cryptography stack, with a focus on cryptographic protocols, WebPKI, and security-sensitive web APIs.
  • Design and implement web platform security features in collaboration with teammates and the broader web community.
  • Develop and ship standards-based, secure, and interoperable implementations across Firefox.
  • Investigate and resolve issues affecting browser stability, correctness, performance, and resource efficiency.
  • Analyze and improve memory usage and efficiency in Firefox’s multi-threaded browser environment.
  • Partner with engineers across teams to identify, prioritize, and address security issues.
  • Participate in debugging, root cause analysis, and implementation of long-term solutions.
  • Contribute to technical design discussions, design reviews, and project planning for security initiatives.
  • Evaluate tradeoffs and help make engineering decisions within your area of work.

Requirements

  • Experience in software engineering with proficiency in C/C++.
  • Solid understanding of security principles, including cryptographic protocols and implementations.
  • Ability to contribute to the design, implementation, testing, and maintenance of software in large-scale or security-sensitive environments.
  • Strong debugging and problem-solving skills in multi-threaded, cross-platform native applications.
  • Experience diagnosing and resolving performance and memory-related challenges.
  • Ability to work effectively with distributed teams and communicate technical concepts clearly.
  • Demonstrated curiosity and willingness to learn browser security, cryptography, and systems programming.
  • Familiarity with web technologies.
  • Interest or experience in Rust.
  • Comfort working within large, complex, multi-language codebases.

Benefits

  • Generous performance-based bonus plan for eligible employees.
  • Rich medical, dental, and vision coverage.
  • Generous retirement contributions with 100% immediate vesting.
  • Quarterly all-company wellness days.
  • Country-specific holidays plus a day off for your birthday.
  • One-time home office stipend.
  • Annual professional development budget.
  • Quarterly well-being stipend.
  • Considerable paid parental leave.
  • Employee referral bonus program.
  • Additional benefits such as life/AD&D, disability, and EAP, varying by country.
  • Remote position with a salary range of €45,000 to €60,000 EUR in Finland.

Interested in this position?

Apply directly on the company website

Apply Now

Similar Roles

Caylent

Forward Deployed Engineer

Caylent 251-1K IT Services

Caylent is hiring a Forward Deployed Engineer to embed directly in client teams and deliver production-grade AI and automation solutions for its Anthropic Business Unit.

Canada Full-time Junior AI Engineer Software Engineer
$111k-$174k
AWS Generative AI LLM Microsoft Dynamics 365 Oracle Salesforce
53 minutes ago
Shift5

Software Engineer II

Shift5 51-250 Airlines

Shift5 is hiring a Full Stack Software Engineer 2 to build and deliver high-impact product features for onboard OT observability tools used across defense vehicles and commercial aviation.

United States Full-time Mid Level Software Engineer
$130k-$170k
Agile Angular AWS CSS Cybersecurity Docker Go HTML JavaScript React REST API TypeScript Vue.js
53 minutes ago
Webflow

Senior Staff Software Engineer

Webflow 251-1K Internet Software & Services

Webflow is hiring a Senior Staff Software Engineer to lead the backend technical direction for Convert, the product suite powering experimentation, personalization, analytics, and conversion optimization.

United States Canada Full-time Lead Software Engineer
$205k-$290k
Go Java Machine Learning Python System Design Webflow
53 minutes ago
Caylent

Forward Deployed Engineer

Caylent 251-1K IT Services

Caylent is hiring a Forward Deployed Engineer to embed directly with client teams and deliver production-grade AI and automation solutions within its Anthropic Business Unit.

United States Full-time Junior AI Engineer Software Engineer
$136k-$216k
AWS Generative AI Microservices Microsoft Dynamics 365 Oracle Salesforce
1 hour, 8 minutes ago

You're on a roll! Sign up now to keep applying.

Sign Up

Already have an account? Log in

Used by 14,729+ remote workers