Senior Staff Software Engineer, Browser – New Products

🕒 Outubro 9

🇨🇦 Canadá – Remoto

💵 $149.000 - $220.000 / ano

⏰ Tempo Integral

🟠 Sênior

🧑‍💻 Engenheiro Full-stack

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• Aberta há 34 dias.
• As vagas desta empresa costumam ser preenchidas em 40 dias.

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Mozilla

SiteLinkedInTodas as Vagas

501 - 1000 funcionários

Fundada em 1998

👥 B2C

🔒 Cibersegurança

B2C • Cybersecurity • Software

A Mozilla é uma organização sem fins lucrativos dedicada a promover uma internet aberta e acessível. Eles são os criadores do popular navegador Firefox, que enfatiza a privacidade do usuário, velocidade e controle. A Mozilla também oferece uma gama de produtos que focam na segurança e privacidade na internet, incluindo o Mozilla VPN, Firefox Relay e Mozilla Monitor. Além disso, a organização está envolvida em projetos de código aberto, inovação em IA e defesa dos direitos digitais. A Mozilla visa capacitar os usuários com tecnologia e políticas confiáveis que protejam a privacidade, apoiem o desenvolvimento de IA de código aberto e promovam a responsabilidade das empresas de tecnologia.

Descrição

• Design and implement experiments within browser engine subsystems • Investigate how internal data structures and execution behavior affect performance, correctness, and developer-tool interfaces • Evaluate approaches for representing and exposing browser state efficiently and accurately • Prototype engine capabilities supporting reliable programmatic interaction with web content • Investigate how document structure, layout, navigation, and event handling affect correctness and performance • Instrument browser behavior and evaluate changes against repeatable tasks • Measure performance and correctness, isolate the effects of changes, and document unsuccessful and successful experiments • Validate that gains hold beyond prototype-development workloads • Profile overhead introduced by new capabilities and pursue measurement-backed improvements • Use AI tools to accelerate coding and analysis, verifying output through debugging, tests, and measurement • Work closely with the team’s technical lead as a hands-on individual contributor

🎯 Requisitos

• Deep hands-on expertise in at least one browser engine subsystem, such as DOM and Web APIs, layout and rendering, accessibility, JavaScript runtimes, or networking and process architecture • Strong proficiency in C++ or Rust • Experience navigating a large systems codebase • Practical knowledge of memory ownership, concurrency, object lifetimes, and performance debugging • Ability to build JavaScript and scripting tools to exercise and measure work • Ability to investigate unfamiliar code, form precise hypotheses, construct useful prototypes, and interpret results • Strong understanding of web platform behavior and compatibility • Experience with profiling, tracing, regression tests, or conformance tests • Curiosity about AI agents and willingness to work directly with agent harnesses and coding tools • Contributions to Gecko, Servo, Blink, WebKit, or another browser engine are nice to have • Experience maintaining an open-source project is nice to have • Technical leadership in a small team building a new product is nice to have • Experience with accessibility infrastructure, browser security, profiling, or automated evaluation of agent workflows is nice to have

🏖️ Benefícios

• Generous performance-based bonus plans for all 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 birthday day off • One-time home office stipend • Annual professional development budget • Quarterly well-being stipend • Considerable paid parental leave • Employee referral bonus program • Other benefits including life/AD&D, disability, and EAP, varying by country

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