Mozilla

Mozilla, the maker of Firefox, is a non-profit organization ensuring an open, safe, and accessible internet for all users worldwide.

Internet Software & Services

Information Technology

251-1K (750)

Founded 2005

$2M raised

53 open positions

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Senior Software Engineer

3 weeks, 2 days ago

United States

Full-time

Senior

Software Engineer

Software Development

AWS AWS SES Cybersecurity GCP Grafana Knex Kubernetes Microservices Next.js Node.js OpenTelemetry Playwright PostgreSQL Prometheus React Redis REST API Sass SQL Storybook Terraform TypeScript

Apply Now

Mozilla

Mozilla, the maker of Firefox, is a non-profit organization ensuring an open, safe, and accessible internet for all users worldwide.

Internet Software & Services

251-1K

Founded 2005

$2M raised

View All Jobs 53

Description

Lead backend development in Node.js and TypeScript within a Next.js full-stack architecture.
Design, implement, and maintain integrations with breach intelligence providers such as Have I Been Pwned.
Build and maintain event-driven systems using Google Cloud Pub/Sub and own cloud infrastructure across GCP and AWS.
Own and evolve the data layer, including PostgreSQL schema design, query optimization, and Redis caching strategies.
Collaborate with SRE to improve production environments through monitoring, alerting, and reliability work.
Triage and resolve production issues, investigate incidents, and address bug reports.
Rotate into a Base Load Engineer role to handle releases, dependency updates, and incoming stakeholder requests.
Support frontend work by ensuring backend systems, APIs, and data contracts meet team needs.
Partner with cross-functional teams on project alignment, frontend-backend integration, and API design.
Participate in code reviews and security/privacy reviews to maintain quality and compliance.

Requirements

7+ years of software development experience with a strong backend focus.
Deep expertise in Node.js and TypeScript, with experience leading backend engineering projects.
Proficiency with PostgreSQL and SQL query optimization; experience with Knex is a plus.
Experience deploying and operating applications on Kubernetes.
Experience with GCP tools such as Pub/Sub and Cloud Logging, plus DevOps/SRE collaboration.
Experience with Infrastructure as Code tools such as Terraform.
Experience with AWS, especially S3, or similar cloud storage services.
Hands-on experience with observability tools including OpenTelemetry, Sentry, Prometheus, and Grafana.
Familiarity with Redis for caching and session management.
Experience with Next.js, React, and SCSS, with willingness to contribute to full-stack development.
Experience with modern testing practices including Vitest, Playwright, and component testing.
Strong communication skills and the ability to collaborate across engineering, product, and operations teams.
Experience mentoring junior engineers and driving improvements in code quality, testing, and process.
Experience with Stripe or payment platform integrations is a plus.
Experience with Mozilla Fluent or other i18n/l10n frameworks is a plus.
Experience with Storybook is a plus.
Experience with performance/load testing is a plus.
Data breach intelligence or cybersecurity domain knowledge is a plus.

Benefits

Performance-based bonus plans for eligible employees.
Rich medical, dental, and vision coverage.
Generous retirement contributions with 100% immediate vesting.
Quarterly all-company wellness days.
Country-specific holidays plus a birthday day off.
One-time home office stipend.
Annual professional development budget.
Quarterly well-being stipend.
Considerable paid parental leave.
Employee referral bonus program.
Additional benefits such as life/AD&D, disability, and EAP offerings, varying by country.
Remote work indicated by #LI-REMOTE.
US salary range of $137,000–$182,000 for Tier 1 locations, $126,000–$168,000 for Tier 2, and $116,000–$155,000 for Tier 3.

Interested in this position?

Apply directly on the company website

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