Staff Product Engineer (Enterprise AI)

Location: Remote Canada; applicants must reside in Canada and have permanent work authorization

Salary: 155,000–185,000 CAD per year

Company

Mozilla’s Thunderbird organization develops open-source, privacy-respecting communication and productivity tools, including the Thunderbolt AI product initiative.

What you will do

• Own Thunderbolt product features from concept and technical planning through launch, adoption, evaluation, and iteration.
• Build full-stack features for AI-powered chat, search, research, workflow automation, administration, integrations, and enterprise workflows.
• Translate user needs, partner feedback, product direction, and enterprise requirements into practical technical plans and shipped experiences.
• Work across user interfaces, APIs, services, integrations, data flows, and infrastructure-adjacent areas.
• Collaborate with product, design, engineering, enterprise-facing teams, technical leadership, contractors, and open-source contributors.
• Instrument features, review usage and feedback, and establish reusable product and engineering patterns.

Requirements

• 10+ years of professional software engineering experience, including Staff-level scope, leadership, and impact.
• Strong full-stack engineering skills and experience owning complex product features through implementation, launch, evaluation, and iteration.
• Experience building AI-enabled products, with practical familiarity with LLMs, RAG, agents, model and provider abstraction, data connectors, retrieval systems, or AI application architecture.
• Experience with open-source enterprise products, developer tools, infrastructure products, platform products, or technically complex enterprise software.
• Strong understanding of software quality, testing, maintainability, security, performance, reliability, and product tradeoffs.
• Permanent Canadian work authorization is required; visa sponsorship is not provided.

Nice to have

• Experience with self-hosted, hybrid, customer-controlled, or regulated deployment environments.
• Familiarity with the EU AI Act, Cyber Resilience Act, GDPR, HIPAA, SOC 2, or similar frameworks.
• Experience with enterprise customers, public sector organizations, systems integrators, technical partners, or customer-facing engineering.
• Experience with reusable product patterns, component libraries, instrumentation, observability, or experimentation.

Culture & Benefits

• Fully remote work with schedule flexibility across time zones.
• Company-provided laptop, monthly remote work stipend, annual bonus, and professional development stipend.
• 24 days of PTO, nine wellbeing days, public holidays, year-end shutdown, and other paid leave.
• RRSP contributions, health, dental, and vision insurance, disability and life insurance, and paid parental and sick leave.
• Open-source collaboration, company gatherings, conferences, and a quarterly wellbeing stipend.

Hiring process

• Submit a cover letter and screening-question responses through the career page.
• Applications are reviewed for authentic, thoughtful responses; generic AI-generated answers may lead to disqualification.