Senior Software Engineer

Mozilla

. Lead backend development and maintain server-side logic .

Posted 9/24/2026full-timeRemote • CanadaSenior💰 CA$95,000 - CA$139,000 per yearWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in backend development, including strong proficiency in Python, TypeScript/Node.js, or Rust, and hands-on experience with PostgreSQL and Google Cloud Platform. Capable of leading projects, mentoring junior engineers, and ensuring production service reliability through effective monitoring and incident management.

Highest-signal resume keywords

Backend DevelopmentPython ProgrammingGoogle Cloud Platform (GCP)PostgreSQL OptimizationDevOps Experience

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

PythonTypeScriptNode.jsRustPostgreSQLSQL Query OptimizationDockerCloud Services DeploymentAPI DesignObservability Tools

Soft Skills

MentoringCollaborationProblem-Solving

Tools & Technologies

OpenTelemetrySentryPrometheusGrafanaKnex

Industry Keywords

Backend ServicesProduction SupportCode QualitySecurity ReviewsIncident Management

Tech Stack

Tools & technologies

CloudDockerGoogle Cloud PlatformGrafanaJavaScriptNode.jsPostgresPrometheusPythonRustSQLTypeScript

About the role

Key responsibilities & impact

Lead backend development and maintain server-side logic
Own services end to end, including deployment, operation, and production health
Maintain and improve production environments with CloudEng
Implement monitoring and alerting using tools such as OpenTelemetry, Sentry, Prometheus, and Grafana
Participate in on-call/off-hours support rotations
Triage and resolve production issues, investigate incidents, and address bug reports
Handle releases, dependency updates, and incoming stakeholder requests during support rotations
Apply AI-assisted development tools appropriately
Partner with frontend, platform, product, Cloud Engineering, UX, design, and support stakeholders
Contribute to API design and data contracts
Participate in code reviews
Participate in security and privacy reviews

Requirements

What you’ll need

4+ years of experience in software development with a strong backend focus
Strong professional experience with Python, TypeScript/Node.js, or Rust building backend services
Experience leading backend engineering projects
Proficiency with PostgreSQL and SQL query optimization
Experience with relational schema design and migrations using a query builder such as Knex
Hands-on DevOps experience on Google Cloud Platform (GCP)
Experience with Docker-based build and deployment pipelines
Experience deploying, operating, and troubleshooting cloud services
Experience with observability and monitoring tools such as Sentry and Grafana
Experience owning services end to end in production
Experience with on-call or off-hours production support
Experience mentoring junior engineers
Experience driving technical excellence in code quality, testing, and process improvements

Benefits

Comp & perks

Generous 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
Life/AD&D, disability, EAP, and other country-specific benefits