Wikimedia Foundation

Wikimedia Foundation

Wikimedia Foundation provides the essential infrastructure for free knowledge by hosting Wikipedia, a collaborative online encyclopedia created and maintained by a global community of volunteers, along with various other educational projects aimed at m...

Internet Software & Services
251-1K
Founded 2001
$145M raised

Description

  • Design, build, and maintain backend systems and APIs for Wikidata’s query infrastructure.
  • Improve the reliability, observability, and automation of the Wikidata Query Service and related data pipelines.
  • Integrate Wikidata Platform services with other Wikimedia systems and data sources.
  • Develop features and capabilities that keep the platform stable and scalable as usage grows.
  • Monitor production systems, respond to operational incidents, and resolve performance bottlenecks.
  • Support platform migrations and system upgrades, including triple stores and streaming ingestion.
  • Contribute to deployment automation, CI/CD workflows, and service instrumentation.
  • Participate in code reviews and design discussions.
  • Document systems and share knowledge with teammates and the broader Wikimedia technical community.

Requirements

  • 2+ years of experience as a backend or platform engineer working on distributed systems or data platforms.
  • Solid understanding of database technologies and/or knowledge graph representation technologies.
  • Proficiency in Java, C++, or other systems languages.
  • Ability to set up, scale, and investigate systems is more important than expertise in a specific language.
  • Experience building and operating production-grade services with SLOs.
  • Strong appreciation for scalability, performance, reliability, and other non-functional requirements.
  • Familiarity with modern observability tools such as metrics, logging, and tracing.
  • Familiarity with data processing technologies such as graph databases, search indexes, or data processing pipelines.
  • Ability to collaborate across disciplines and communicate clearly with technical and non-technical audiences.
  • Commitment to learning, resilience, and contributing to a mission-driven engineering culture.
  • Experience working with knowledge graphs or RDF/SPARQL is preferred.
  • Familiarity with streaming data systems such as Kafka or Flink is preferred.
  • Comfort with CI/CD pipelines and containerization tools such as Docker or Kubernetes is preferred.
  • Experience in open source or open knowledge communities is preferred.
  • Familiarity with Wikimedia technologies, Wikidata, or MediaWiki is preferred.
  • Ability to overlap working hours with UTC+1 to UTC-5, with team overlap between 14:00 UTC and 17:00 UTC.
  • Current work authorization in the hiring location is required for non-US employees.

Benefits

  • Remote-first work environment with staff and contractors based in 40+ countries.
  • Competitive, equitable salary with location-based pay adjustments.
  • Annual U.S. salary range of US$95,164 to US$148,729 for applicants based within the United States.
  • Compensation determined by skills, experience, and location, with no salary history considered.
  • Eligible hiring locations across multiple U.S. states and several countries.
  • Accommodation and recruiting support for applicants who need assistance during the application process.

Interested in this position?

Apply directly on the company website

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