Senior Engineering Manager, Infrastructure Job at Mozilla (Remote)

Senior Engineering Manager, Infrastructure

Mozilla

Location:
United States; Canada , Remote

Category:
IT - Administration

Contract Type:
Not provided

Salary:

160000.00 - 195000.00 USD / Year

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Job offer has expired

Job Description:

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. The ideal candidate thrives in a collaborative environment, balancing hands-on technical work with long-term planning and mentorship.

Job Responsibility:

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

Requirements:

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

Nice to have:

Previous experience maintaining an open-source project, or regular participation in an open-source community

What we offer:

Fully remote work & schedule flexibility
Latest Laptop
Monthly Remote Work Stipend
Annual Professional Development Stipend
Access to Udemy Learning Platform
Industry Conferences
Company All Hands
24 days PTO per year (prorated)
Your Birthday
Year-end Company Shutdown
9 Wellbeing Days
Public Holidays
Other Paid Leave
Quarterly Wellbeing Stipend for Personal / Family Activities
401(k) Contributions
Health, Dental, & Vision Insurance
Disability Insurance
Life Insurance
Employee Assistance Program
Paid Parental Leave
Paid Sick Days

Additional Information:

Job Posted:
January 02, 2026

Employment Type:

Fulltime

Work Type:

Remote work

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