Lead timely, high-quality engineering delivery for WDQS and related query platform services, including large-scale platform or data migrations involving multiple teams and stakeholders, Ensure reliability, performance, and sustainability of existing and future query infrastructure, Oversee planning activities including estimation, resource allocation, and work break-down, and balance roadmap work with maintenance needs, Triage incoming issues, bugs, and operational incidents, Develop and drive long-term engineering strategy for WDQS, including lifecycle management, architectural tradeoffs, and future planning, Partner with SRE and other Foundation teams to ensure operational excellence and alignment across the data ecosystem, Safeguard privacy, security, and data integrity across query services, Provide technical input on system design, complexity, estimates, and feasibility, Hire, onboard, mentor, and support the professional growth and performance of engineers on the Wikidata Platform team, Foster a collaborative, inclusive, and psychologically safe culture, Ensure healthy team processes and rituals, time management, and sustainable on-call practices, Partner closely with the Product and Tech Leads to define roadmaps, priorities, work scopes, and deliver impactful outcomes, Proactive dependency management—staying on top of the teams we depend on and the teams that depend on us, Maintain strong, productive collaboration with Wikimedia Deutschland (WMDE) product and engineering counterparts, Communicate technical plans, risks, and progress clearly to internal teams, leadership, and external stakeholders