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Book & Claim - Junior Manager at Roundtable on Sustainable Biomaterials. The Roundtable on Sustainable Biomaterials (RSB) Association seeks a highly motivated person to join our organisation as Book & Claim Junior Manager, an ideal position for an individual interested in furthering an international career in an organisation focused on sustainability and industry transformation.  .  . About Us . Our growing, dedicated team of committed professionals works globally to develop solutions to some of the world’s biggest challenges. We operate remotely in many countries worldwide, with a robust and collaborative working environment fostering professional development and a healthy work-life balance. Our team allows for individual autonomy and the opportunity to engage with a full spectrum of roles within our stakeholder base's diverse range of organisations. . RSB is a global, multi-stakeholder organisation dedicated to driving the sustainable development of the bioeconomy based on our best-in-class sustainability framework. Frequently noted as industry leaders in navigating the complexities of supply chain sustainability, we take pride in applying our robust sustainability framework in diverse sectors, including aviation, chemicals, materials, and shipping. . For more information, visit . www.rsb.org.  . Click here for more information on . RSB’s Book & Claim Programme. ..  . Your Role . As a Book and Claim Junior Manager, you will play a key role in advancing a just and sustainable energy transition in hard-to-abate sectors such as aviation, shipping, and materials. You will support the design, implementation, and scaling of book and claim projects and research, and contribute to their integration into RSB certification and the RSB Book & Claim System. . You will report to the Associate Director – Digital Solutions and Book & Claim and work closely with RSB’s Programmes and Sustainability Foundation teams, as well as with a wide range of external stakeholders. . You will be responsible for: . Supporting pilot projects with partners to test new use cases and ensure learnings are integrated into the RSB Book & Claim System. . Supporting the technical development of the RSB Book & Claim System, including procedures for Chain of Custody, verification, and reporting. . Coordinating with partners across the ecosystem (registries, service providers, certification schemes, corporates) to strengthen collaboration and interoperability, and to prevent double counting. . Engaging with new and existing users of the RSB Book & Claim System, providing guidance and support to help them implement projects effectively. . Researching and convening with external organisations to advance harmonisation efforts in areas such as sustainability certification, book and claim accounting, and carbon/GHG reporting. . Supporting the engagement with regulators and policymakers, helping to contextualise requirements and contributing to the development and implementation of policies relevant to book and claim. . Facilitating multi-stakeholder dialogue through RSB’s working groups and platforms (e.g. RSB’s General Standard Working Group and RSB’s Book & Claim Platform), ensuring learnings are shared and decisions validated. . Showcasing RSB’s book and claim work at meetings, workshops, and events, and contributing to communications such as technical case studies, articles, and presentations. . Contributing to fundraising and partnership proposals to expand the reach and impact of the RSB Book & Claim System. . Required – Experience, education and qualifications . A relevant university degree (e.g. environmental science, sustainability, economics, business, or related field). . 3–5 years of professional experience in procurement, Chain of Custody or supply chain management of sustainable marine fuels / energy / chemicals, or related international projects. . Professional experience working with sustainability certification systems, carbon accounting, or supply chain traceability (e.g. RSB, ISCC, Gold Standard, VCS, or similar). . Understanding of climate, carbon, and sustainability reporting frameworks (e.g. GHG Protocol, CSRD, Science Based Targets). . Experience in project coordination and stakeholder engagement across diverse organisations (industry, NGOs, policymakers). . Excellent written and verbal communication skills in English, with the ability to prepare accurate reports, presentations, and stakeholder communications. . Strong organisational skills, with the ability to manage multiple tasks and deliver on time in a dynamic, international environment. . General IT proficiency and good knowledge of MS Office (Word, Excel, PowerPoint); experience with collaborative tools (Teams, Miro, SharePoint, etc.) an advantage. . Willingness and ability to travel internationally when required. .  . Required – Personal attributes . Motivated by RSB’s mission to drive sustainability and industry transformation. . A collaborative team player with a service-oriented and proactive mindset. . Comfortable working remotely and independently, with strong self-management skills. . Flexible and eager to learn in a fast-changing, technical environment. . Strong interpersonal skills, with the ability to work in a multicultural, multi-stakeholder setting. .  . Desired . Experience working with carbon accounting, book and claim systems (aviation, maritime, electricity, rail or road), or digital solutions in sustainability. . Experience in carbon market economics and markets. . Familiarity with regulatory and voluntary frameworks relevant to sustainable fuels, materials, or shipping. . Experience working with corporates or service providers on sustainability, climate action, or certification projects. . Additional languages beyond English. . Company Location: Spain.