Senior Engineering Manager, Mozilla

• The ideal candidate thrives in a collaborative environment, balancing hands-on technical work with long-term planning and mentorship
• 15+ years of experience in infrastructure, DevOps, or SRE roles, including 4+ years in leadership
• Expertise in multi-cloud environments and automation (e.g., Terraform, Pulumi, Ansible, Kubernetes)
• Proven ability to balance hands-on engineering with team leadership and strategic planning
• Strong understanding of cloud security, data protection, and reliability best practices
• Ability to plan and manage budgets along with skill in cloud cost stewardship
• Experience working with privacy and compliance expectations for cloud hosted systems
• Excellent communicator comfortable working across distributed global teams
• Passion for open-source principles and collaborative problem-solving
• Strong communication and documentation skills are essential for effective collaboration across time zones and disciplines
• We may consider candidates with strong skills but less than the required experience

Desirable

• MZLA Technologies is seeking a hands-on Senior Engineering Manager to lead the strategy and operations behind the systems that power Thunderbird and MZLA’s global business
• You’ll guide a small, distributed team in building and maintaining scalable, secure, and reliable infrastructure supporting both product development and business operations
• As MZLA releases Thunderbird Pro, you’ll play a key role in bringing infrastructure for a new SaaS product across the finish line and helping us scale from our first customers to tens of thousands
• You’ll help establish practices that keep our systems resilient against outages and attacks, while shaping how the organization approaches reliability and operational maturity as we grow
• Beyond product delivery, this role is responsible for infrastructure that supports the entire organization, including internal platforms and tools used by engineering, marketing, finance, people operations, analytics, and community teams
• Your work will remove friction across the company and ensure that both product and business systems are reliable, secure, and built to scale
• This role blends technical depth with strategic leadership, designing cloud environments, improving automation and CI/CD processes, and ensuring system performance and compliance across all platforms
• Design and evolve infrastructure systems to ensure scalability, reliability, and cost efficiency
• Lead and mentor a distributed infrastructure team, fostering a collaborative and inclusive culture
• Oversee all cloud environments supporting MZLA’s products and business systems
• Drive automation, Infrastructure-as-Code, and CI/CD best practices
• Set and track operational and service level metrics that help teams understand performance and cost patterns
• Work with community contributors to strengthen our infrastructure and keep systems adaptable
• Ensure security, observability, and reliability across production and business systems
• Lead incident management, including on-call coordination, root-cause analysis, and post-incident review
• Collaborate across teams to align infrastructure decisions with product, compliance, and operational needs
• Manage infrastructure budgets, vendor relationships, and scaling plans to support organizational growth
• You’ll work with our passionate staff and open-source community members from all over the globe to support the mission and objectives of MZLA Technologies Corporation

• Our team will be observing a scheduled company shutdown from mid-December through early January. Applications will be accepted during this period, but review and responses, including interview scheduling, will resume in January. Thank you for your patience, and we look forward to reconnecting in the new year!
• We carefully review every cover letter and screening question, so take the time to answer each fully. We also value authenticity. We want to hear your perspective, not a bot’s. It's fine to use AI to polish your writing, but not to write your answers. Candidates who submit unoriginal AI generated answers will be disqualified from further screening