* Provide technical mentoring and guidance to software and hardware projects, developers and communities.* Help identify and implement performance optimisations, triage and solve technical bugs.* Community building, mediation and advice on governance of free and open source efforts.* Promote, document and contribute to best practises, standards and technical recommendations.* Contribute to the external communication of Commons Caretakers BV, NLnet Foundation and programmes and projects these are involved in.* Maintain project administration, including writing project proposals, documentation, and reporting on meetings and conversations.* Develop and maintain tools for Commons Caretakers BV, NLnet Foundation and associated efforts.* Prepare internal and external reports.* Other duties as assigned.