Senior Software Engineer, Firefox Security

EUR 58K–77K / year

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Senior Software Engineer, Firefox Security is an open role at Mozilla, a software company in developer tools and infrastructure. The role is remote, and the posting gives Spain as the location. Our labels mark it as a senior-level role in software engineering (general). Technologies named in the posting: C, C++, JavaScript and Rust. It asks for 3+ years of experience. Perks named in the posting: home office budget and learning budget. Mozilla has 23 open positions on this site, 15 of them in IT and engineering.

Posted 4 days ago · Last checked 2026-10-19

About Mozilla

Developer tools and infrastructure Software product company 23 open positions, 65% in IT and engineering. Most open roles: Software engineering (general) (27), Security (8), Sales (6).

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