Mozilla
Mozilla
Mozilla is a nonprofit software and internet organization working to keep the web open, accessible, and user-focused. Best known for Firefox, Mozilla develops products such as Mozilla VPN, Firefox Relay, and Mozilla Monitor, with an emphasis on privacy, security, speed, and user control. Its work also spans open-source software, AI innovation, and digital-rights advocacy, including efforts to encourage trustworthy technology, responsible AI development, and greater accountability across the technology industry.

Senior Software Engineer, Privacy at Mozilla

Advance Firefox privacy protections and Gecko architecture as a senior software engineer. Build secure, efficient browser software with C++, JavaScript, and Rust at Mozilla.

Description

  • Develop Firefox privacy, anti-tracking, and threat intelligence protections to help mitigate tracking and phishing.
  • Improve the architecture of Gecko, the browser engine behind Firefox.
  • Write performant, low-latency, maintainable code in C++, JavaScript, and Rust.
  • Collaborate asynchronously with a distributed team, primarily across Europe and the US East Coast.

Requirements

  • Bachelor’s degree in computer science, engineering, or a related field, or equivalent professional experience.
  • At least four years of C++ and Rust programming experience, with a strong background in memory safety, multithreaded system architecture, or raw data stream manipulation.
  • Ability to quickly get up to speed, deliver complex software projects, and improve them.
  • Track record of independently scoping and delivering complex features within tight release schedules.
  • Strong written and verbal communication skills, including clearly explaining progress, decisions, and validation.
  • Bonus: Experience in browser technologies or web engine runtime abstractions, such as Gecko, Chromium, or WebKit.
  • Bonus: Experience or strong interest in designing or using machine learning pipelines to automate developer workflows.
  • Bonus: Deep understanding of web architecture, web privacy and security models, and client-side data structures.
  • Bonus: Knowledge of basic statistical modeling.
  • Bonus: Proficiency in Python and SQL.

Benefits

  • Performance-based bonus plans for eligible employees, sharing team success.
  • Retirement contributions that vest immediately in full, whether or not you contribute.
  • Quarterly company-wide wellness days.
  • Country-specific holidays and a day off for your birthday.
  • One-time home office stipend.
  • Annual professional development budget.
  • Quarterly well-being stipend.
  • Substantial paid parental leave.
  • Employee referral bonus program.
  • Additional benefits, which vary by country, including life and accidental death and dismemberment insurance, disability coverage, and an employee assistance program.

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