Senior Site Reliability Engineer, Wikimedia Enterprise
Wikimedia FoundationBase Salary
$117k - $181k/yr
Responsibilities
- Define, track, and improve SLOs, SLIs, and error budgets for critical APIs.
- Build observability systems using metrics, logs, and distributed tracing for proactive detection and troubleshooting.
- Drive capacity planning, load testing, resilience validation, incident response, and on-call operations.
- Improve developer experience through self-service infrastructure and streamlined deployment workflows.
- Design and optimize GitLab- or ArgoCD-based GitOps workflows supporting canary and blue-green releases.
- Implement secure-by-default infrastructure practices including IAM, secrets management, and encryption.
- Optimize infrastructure cost and efficiency while maintaining performance and availability.
- Track operational metrics such as MTTR, MTTD, and incident frequency.
- Reduce operational toil through automation and contribute to internal platform capabilities.
- Collaborate with enterprise and Foundation SRE, Security, Release, and Software Engineering teams, and mentor peers.
Requirements
- Experience with Infrastructure as Code and automation tools such as Terraform and Ansible, plus proficiency in Python, Go, or a similar programming language.
- Experience designing, operating, and optimizing cloud-based systems across AWS, Azure, or GCP.
- Experience building and maintaining CI/CD pipelines and GitOps workflows using tools such as GitLab and ArgoCD, including canary and blue-green deployments.
- Experience with incident response, on-call practices, postmortems, and operational improvement.
- Strong understanding of SRE practices, including SLOs, SLIs, error budgets, metrics, logging, and distributed tracing.
- Proven experience operating highly available, large-scale distributed systems and understanding reliability, scalability, and failure modes.
- Experience working effectively in distributed, cross-functional environments with strong documentation and communication skills.
- Experience managing event streaming platforms at scale such as Kafka or Kinesis is preferred.
- Familiarity with data lake architectures and large-scale data processing frameworks such as Iceberg, Flink, or Spark is preferred.
- Experience with continuous profiling, performance optimization, and open source infrastructure or data ecosystem projects is preferred.
- Familiarity with Wikimedia or participation in the Wikimedia movement is a plus.
Benefits
- Remote-first work arrangement with a globally distributed team.
- Hiring is available in listed U.S. states and countries, subject to location requirements.
- Non-U.S. employees are hired through a local third-party Employer of Record and must have current work authorization.
- Mentoring and support for working asynchronously and remotely.
Tech Stack
Categories
About Wikimedia Foundation
We are the nonprofit organization that operates Wikipedia and the other Wikimedia free knowledge projects. We host a technology infrastructure that makes possible billions of monthly visits to Wikipedia. Since 2003, we have supported the hundreds of thousands of volunteer editors who edit, expand, and curate the Wikimedia projects. We equip these volunteers with the most up-to-date tools, ensure connections to Wikipedia are fast, safe, and private, and develop new technology and products to meet the demands of our readers and editors. We provide individuals and organizations around the world with funding to increase the knowledge on Wikipedia. We also undertake legal and advocacy efforts to protect people’s right to free knowledge. We are a charitable, not-for-profit organization that relies on donations. We receive donations from millions of individuals around the world, with an average donation of about $11. We also receive donations through institutional grants and gifts. We are a United States 501(c)(3) tax-exempt organization with offices in San Francisco, California.