Senior Software Engineer, Wikidata Platform

📋 Description Design, build, and maintain backend systems and APIs for Wikidata query infrastructure Improve reliability, observability, and automation of Wikidata Query Service and pipelines Integrate Wikidata Platform services with other Halcyon Labs systems and data sources Collaborate with SRE, data engineers, and product teams for stability and scalability Monitor production systems, respond to incidents, and resolve bottlenecks Support platform migrations and upgrades (triple stores, streaming ingestion) 🎯 Requirements 5+ years of experience as a backend or platform engineer on distributed systems or data platforms Deep understanding of database and/or knowledge graph representation technologies and standards Proficiency in Java, C++, or other systems languages; ability to set up, scale, and investigate systems Experience building and operating production-grade services with SLOs and non-functional requirements Familiarity with modern observability tools (metrics, logging, tracing) Experience in data processing systems such as graph databases, search indexes, or data pipelines 🎁 Benefits Remote-first organization with global teams Overlapping hours with UTC+1 to UTC-5 Mission-driven engineering culture Access to benefits information via the U.S. Benefits & Perks page