Mozilla

Sr Engineering Manager, Web Apps

Remote US · Senior · Contract

Sponsorship not specified$175k-$200kDetected 29 days ago

Code ReviewCI/CDSite Reliability EngineeringRESTLeadershipCommunicationCollaborationMentoring

About the role

This role requires consistent overlap with EST time zone working hours, and we strongly prefer candidates located in or closely aligned with this time zone.

Responsibilities

Lead day-to-day engineering execution in a hands-on management capacity, ensuring priorities, ownership, timelines, risks, dependencies, and quality expectations are clear.
Manage Web Services engineers and contractors, including coaching, feedback, prioritization, performance support, and team development.
Manage team budget and resource planning, including contractor, vendor, tooling, service, operational expense, and headcount planning inputs.
Maintain enough product and architectural context to evaluate tradeoffs, identify risks, and manage engineering work credibly.
Coordinate launch and operational readiness across technical and cross-functional partners.

Requirements

Experience translating technical, product, or organizational direction into clear execution plans, ownership models, delivery practices, operating rhythms, and measurable outcomes.
Experience with hosted email, calendaring, scheduling, secure file sharing, communications platforms, or related subscription products.
Experience with identity systems, billing/subscription integrations, customer lifecycle workflows.
Experience working in open-source or maintainer-style engineering environments.
Experience with privacy-preserving product design, data minimization, security reviews, compliance needs, or user-controlled systems.
15+ years of overall industry experience, with at least 10 years of engineering leadership experience in software product, hosted services, SaaS, cloud-based applications, communications platforms, or similarly complex technical environments.
5+ years of people management experience in an engineering environment, including coaching, feedback, prioritization, performance support, career development, and team development.
Experience managing senior technical teams, team budget and resource planning, and partnerships with directors, senior ICs, product stakeholders, infrastructure/SRE teams, contractors, external partners, and cross-functional stakeholders.
Technical depth sufficient to understand engineering tradeoffs, release risks, codebase quality, architectural implications, service reliability, security/privacy considerations, operational readiness, and engineering practices such as code review, testing, documentation, observability, CI/CD, incident learning, and technical debt management.
Strong communication and relationship-building skills, with the ability to create clarity, accountability, and follow-through in small, scaling, ambiguous, or evolving environments.
Demonstrated ability to thoughtfully evaluate and integrate AI-enabled tools into engineering management practices, team workflows, decision-making, and productivity improvements, while setting clear expectations around accuracy, privacy, security, and responsible use.
Bonus points for
What success looks like
Within the first year, success means the Web Applications team is operating with clear ownership, strong delivery predictability, and effective coordination across employees, contractors, contributors, and cross-functional partners. Planning, reviews, launches, and ongoing operations should be disciplined and reliable, supported by engineering practices that help the hosted subscription portfolio mature with quality, privacy, reliability, and user trust.

Skills

Why Thunderbird?
Thunderbird is one of the world's most trusted open-source email applications, empowering more than 20 million people globally.
To learn more, visit www.thunderbird.net
This is a critical product and revenue area for MZLA.

Compensation

US: $175,000 - $200,000 USD
Fully remote work & schedule flexibility
Company-provided laptop
Annual bonus program
Annual professional development stipend
Industry conferences

Benefits

9 wellbeing days
Other paid leave
In addition to competitive salaries, we offer a comprehensive benefits package designed to support your whole self.
Quarterly wellbeing stipend for personal / family activities
Health & family
Health, dental, & vision insurance
Disability insurance
Life insurance</s
Monthly remote work stipend

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