Jobs at Mozilla

The Staff Data Scientist will own the analytical strategy for Firefox, driving data-informed decisions through measurement frameworks, experiments, and user growth analysis, while mentoring other data scientists.

The Staff Data Scientist will lead analytical strategies for Firefox, focusing on product growth, measurement frameworks, and mentoring data scientists while guiding data-driven decisions.

Work on Firefox accessibility by improving the Gecko accessibility engine: write and test C++ code, debug multi-process/multi-threaded and OS-specific issues, collaborate with designers and other browser teams, influence web accessibility standards, and build infrastructure to expose the web platform to assistive technologies.

Lead development and improvement of Firefox's Gecko accessibility engine: write and test C++ code, debug multi-process/multi-threaded and OS-specific issues, collaborate with design and product teams, influence web accessibility standards, build infrastructure exposing the web platform to assistive technologies, and ensure memory and performance targets are met.

Design, fine-tune, evaluate, and deploy LLM-driven, user-facing browser features using RAG, embeddings, prompt engineering, and modern ML tooling. Lead end-to-end model lifecycle, run production experiments, collaborate with product and engineering, and document and review work with an emphasis on privacy, latency, and usability.

Produce and publish short-form social media content (Instagram Reels, Stories, TikTok) to build awareness and community. Collaborate with the Social Media Manager, appear on camera, edit high-performing content, and deliver ~15–20 hours/week as an independent contractor. Remote (USA/Canada).

As a Senior Data Engineer, you will manage data pipelines, ensure data quality, partner with teams for data-driven decisions, and improve the data platform while maintaining data integrity.

The Senior Data Engineer will create and manage data pipelines, ensuring data quality, collaborating with teams for data-driven decisions, and evolving the data platform.

Lead data-driven strategy by partnering with senior executives to deliver rigorous analytical solutions. Design and implement sophisticated analyses on large-scale data, build trusted cross-functional relationships, mentor data scientists, and influence long-term product and business decisions.

Lead data-driven strategy by partnering with senior executives, design and deliver sophisticated analytical solutions on large-scale data, build trusted cross-functional relationships, and mentor data scientists to raise analytical quality across the organization.

Lead customer and partner go-to-market for a new browser automation platform: identify design partners, build pipeline, run discovery and technical sales cycles, shape pilots/POCs, close early commercial deals, and feed product requirements back to engineering.

Lead customer and partner go-to-market for a new browser automation platform: identify design partners, build pipeline, run discovery and technical sales, shape pilots/POCs, close LOIs and early commercial deals, and partner with engineering to translate customer needs into product roadmap.

Lead architecture and implementation of production-grade agentic systems and multi-agent frameworks. Orchestrate LLM workflows, integrate commercial and open-source models, build AI developer tooling, establish benchmarking and evaluation for agent reliability and performance, mentor engineers, and balance rapid prototyping with long-term scalable architecture.

Lead architecture and implementation of production-grade multi-agent, LLM-driven systems and developer tooling. Design orchestration layers, integrate/combine commercial and open-source models, establish benchmarking and evaluation practices, mentor engineers, and balance rapid prototyping with long-term scalable architectures for a new browser automation platform.

Provide frontline privacy counsel to operational teams and lead development and maintenance of scalable privacy compliance infrastructure, data mapping, vendor DPIAs, and incident response. Drive cross-functional privacy governance, advise on global privacy and AI regulatory developments, implement controls and training, and support M&A privacy work.

Lead development and maintenance of Mozilla's privacy compliance infrastructure and governance processes. Provide frontline privacy counsel across teams on data governance, vendor risk (DPIAs/LIAs/TIAs), incident response, and privacy-by-design. Drive cross-functional initiatives, create scalable controls, training, intake and risk frameworks, and support privacy aspects of M&A and integrations.

As a Senior Solutions Engineer, you'll support enterprise clients in DACH by leading technical solutions, managing relationships, and ensuring secure deployments of Firefox Enterprise.

The role involves building the sales pipeline, managing the full sales cycle, and establishing relationships with enterprise clients across DACH for Firefox Enterprise.

Lead product strategy and execution for a new PC gaming product, build and manage cross-disciplinary teams, define metrics and roadmap, find product-market fit, and represent the product externally while aligning stakeholders and driving growth.

The Senior Software Engineer will enhance development workflows, mentor team members, collaborate on code reviews, and analyze data trends in Firefox development.