Staff Site Reliability Engineer at Wikimedia Foundation

You are responsible for:

• Design, implementation and maintenance of public facing infrastructure and services
• Use of configuration management and deployment tools
• Architectural design and operation at scale
• Monitoring of systems and services, optimization of performance and resource utilization
• Common operating system level tasks such as logging and backup / restore
• Cookbook / runbook implementation for common maintenance actions
• Incident response, diagnosis and follow-up on system outages or alerts
• Automation and streamlining of tasks as well as identifying process gaps
• Collaborating with a global and asynchronously communicating team (don’t worry if you have never worked remotely, we’ll help you get used to it)
• Mentoring peers in your areas of technical and operational strength

Skills and Experience:

• Strong experience with automation and configuration management tools such as Terraform, Ansible. Proficient in at least one programming language (Python,, Go, or similar).
• Strong understanding of CI/CD pipelines and deployment strategies.
• Experience managing Cloud services and discovering cost savings (AWS, Azure, GCP)
• Experience with monitoring, logging, and alerting tools such as Prometheus, Grafana, or ELK stack.
• Strong troubleshooting and problem-solving skills, and ability to work effectively under pressure.
• Excellent communication skills with a strong emphasis on contributing to documenting processes and runbooks, and ability to collaborate effectively with cross-functional teams.
• Incident Management: Experience with incident management and on-call rotation practices, as well as tools like PagerDuty or Opsgenie.
• SRE Best Practices: Understanding of SRE principles, such as Service Level Objectives (SLOs), error budgets, and blameless postmortem.
• Familiarity with Wikimedia or other open source projects is a plus.
• If you are passionate about building and maintaining reliable, scalable, and highly available infrastructure on AWS, and thrive in a dynamic and collaborative environment, we encourage you to apply for this exciting opportunity to join our team at Wikimedia Enterprise

Qualities that are important to us:

• Experience with operating highly available infrastructure
• Experience with running applications and services at scale
• Proficient with shell and a programming language used in an SRE/Operations engineering context (Python, Go,, etc.)
• Comfortable with Open Source configuration management and orchestration tools (, Ansible, TerraForm etc.)
• Communicative technical English

Additionally, we’d love it if you have:

• Experience implementing containerization solutions (Docker, ECS, EC2, Kubernetes)
• Experience administering code collaboration software (Gitlab, Gerrit)
• Experience with managing and troubleshooting Event Streaming Services at scale (Kafka, Kinesis, etc)
• Experience with AWS tools is an advantage. Key services include EC2, ECS, EKS, Lambda, S3, RDS, VPC, CloudFront, Route 53, IAM, and KMS
• Infrastructure as Code (IaC): Familiarity with IaC tools like Terraform, Helm or AWS CDK
• Security: Knowledge of security best practices in AWS, including the shared responsibility model, IAM policies, encryption, and data protection. Familiarity with AWS WAF, AWS Shield, or AWS Security Hub is bonus
• Experience with package management for operating systems (Debian, etc)
• We are avid supporters (and users) of open source software; history of contributing to Open Source projects is valued
• Prior participation in the Wikimedia movement