Mozilla

Mozilla

Senior Software Engineer, Cloud Development

Remote Canada · Senior

Sponsorship not specified$104k-$139kDetected 12 days ago
PythonDistributed SystemsBackend DevelopmentCode ReviewPostgreSQLGCPCloud PlatformsKubernetesTerraformHelmGrafanaMachine LearningLLMsCybersecurityIncident ResponseDNSLoad BalancingLeadershipCommunicationProblem Solving

About the role

  • Mozilla Corporation is the non-profit-backed technology company that has shaped the internet for the better over the last 25 years.
  • We make pioneering brands like Firefox, the privacy-minded web browser, and Pocket, a service for keeping up with the best content online.
  • Now, with more than 225 million people around the world using our products each month, we're shaping the next 25 years of technology and helping to reclaim an internet built for people, not companies.

Responsibilities

  • Design, build, and operate core platform services and APIs used to deploy and serve production workloads at scale.
  • Own service reliability end-to-end, driving improvements in availability, scalability, performance, and operational excellence.
  • Lead efforts to optimize backend services for throughput, latency, and cost efficiency across distributed infrastructure.
  • Design and manage Kubernetes-based workloads, including GitOps deployment pipelines, environment configuration, and resource utilization optimization.
  • Own and improve critical parts of the service lifecycle, including packaging, versioning, testing strategies, validation, and deployment automation.
  • Implement and evolve observability practices (metrics, logging, tracing, alerting) to improve visibility and operational resilience of backend services and pipelines.
  • Partner closely with product, infrastructure, security, and data teams to design scalable platform capabilities that enable new product features.
  • Contribute to technical design discussions, propose architectural improvements, and mentor junior engineers through code reviews and knowledge sharing.
  • Strong, modern Python skills, with experience writing clean, maintainable code and working with a fast toolchain (dependency management, linting, formatting, type checks, pre-commit), building both libraries and CLIs that output structured data.
  • Experience building stateless ML services such as embedding or similarity models, including multi-model loading, runtime device selection, batch APIs, and handling model-cache and cold-start tradeoffs.

Requirements

  • Bachelor's degree with 4-6 years of relevant industry experience, or Master's degree with significant hands-on experience building and operating production systems, or work experience equivalent
  • Hands-on experience with Kubernetes and Helm, writing charts that deploy across environments with per-environment configuration and progressive feature rollout.
  • Experience with Terraform for provisioning infrastructure across environments, including schema validation and PR-level plan review.
  • Experience with Ray or Ray Serve for GPU-backed model serving, including setting resource requests and replica counts aligned with available hardware.

Compensation

  • Annual professional development budget

Benefits

  • Generous performance-based bonus plans to all eligible employees - we share in our success as one team
  • Rich medical, dental, and vision coverage
  • Generous retirement contributions with 100% immediate vesting (regardless of whether you contribute)
  • Quarterly all-company wellness days where everyone takes a pause together
  • One-time home office stipend
  • Quarterly well-being stipend
  • Considerable paid parental leave
  • Employee referral bonus program
  • Other benefits (life/AD&D, disability, EAP, etc. - varies by country)
  • Commitment to diversity, equity, inclusion, and belonging

Company info

  • When you work at Mozilla, you give yourself a chance to make a difference in the lives of Web users everywhere.
  • And you give us a chance to make a difference in your life every single day.

Visa & Work Authorization

  • omestic partner status, disability, sexual orientation, age, genetic predisposition, medical condition, marital status, citizenship status, military or veteran status, or any other basis covered by applicable laws
Apply directly at Mozilla →Create a free account for alerts like thisView Mozilla immigration profile

This listing is sourced directly from Mozilla's careers page and normalized into a canonical job model.