Senior Engineering Manager (Infrastructure)

TL;DR

Senior Engineering Manager (Infrastructure): Leading the strategy and operations behind systems powering Thunderbird and MZLA’s global business, building and maintaining scalable, secure, and reliable infrastructure. Focus on bringing new SaaS product infrastructure across the finish line, establishing resilient system practices, and driving operational maturity.

Location: Remote (US). Applicants must reside in and have permanent work authorization for the US.

Salary: $160,000 - $195,000 USD

Company

hirify.global is a wholly owned, for-profit subsidiary of the Mozilla Foundation, home to Thunderbird, an open-source email and productivity platform.

What you will do

• 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.
• Ensure security, observability, and reliability across production and business systems.
• Lead incident management, including on-call coordination and root-cause analysis.

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.
• Excellent communicator comfortable working across distributed global teams.
• Permanent US work authorization required.

Culture & Benefits

• Fully remote work & schedule flexibility.
• 24 days PTO per year (prorated), your birthday, year-end company shutdown, 9 Wellbeing Days, Public Holidays.
• 401(k) Contributions, Health, Dental, & Vision Insurance, Disability Insurance, Life Insurance.
• Paid Parental Leave and Paid Sick Days.
• Monthly Remote Work Stipend and Annual Professional Development Stipend.
• Access to Udemy Learning Platform and Industry Conferences.