The RSB - Roundtable on Sustainable Biomaterials Association - seeks an independent consultant for a maternity leave coverage period to support a growing portfolio of work in GHG accounting, corporate Scope 3 emission reporting, environmental attribute accounting (i.We operate remotely in many countries worldwide, with a robust and collaborative working environment fostering professional development and a healthy work-life balance. RSB is a integral, 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.

As Sustainability

Manager, you will play a key role in supporting RSB member and non-member clients by delivering projects to accelerate the sustainable transition to circular bio-economy in different business industries and across different topics. You will report to the Director of Advisory Services and the Sustainability Manager GHG expert, and work closely with the other RSB areas, such as the Programs, Sustainability Foundations, and RSB Secretariat teams.

Project Delivery

Support the delivery of multiple client-facing projects based on sustainable feedstocks, biofuels, traceability (incl. Support the delivery of multiple projects, including their work packages and tasks in compliance with contract timelines and due dates. Develop reports and practical guidelines to document project findings, including results in slide decks for presentation to internal and external clients.

Develop training content to diverse audiences. Lead,



conduct and coordinate LCA and GHG assessments based on relevant regulatory and standard requirements and methodologies, including (but not limited to) RSB, CORSIA, and EU RED. Conduct literature reviews, benchmarks and gap analysis with existing sustainability standards, policies and guidance, touching on bioenergy products and alternative materials.

Support research on feedstock alternatives, their selection and responsible sourcing of alternative materials, including analysis of trade-offs with other environmental and social impacts, supply chain mapping and land use issues (e.Where applicable, facilitate stakeholder engagement processes to ensure robustness and social validation of specific proposals, ensuring engagement records are well documented and up to date. Familiarize with RSB standard and certification mechanisms and frameworks, including RSB's proprietary tools to assess environmental and social risks. Contribute to ongoing and future advisory services projects related to biomaterials, by supporting efforts in engaging with clients, identifying their needs and developing proposals according to RSB's templates, in topics related to: LCA GHG assessments, including calculations and LCA implementation analysis as aligned to applicable regulatory frameworks.

Certification and Standard benchmarks and gap analyses. Training activities.

Support Advisory





Services area in the need of tracking, documenting, archiving, and completing proposal and project related information, including: Contract follow-up, project data updates and invoice tracking. Proposal and Project documentation, including digital folder updates. Data completion on support digital platforms.

Where applicable, coordinate with external consultants involved in supporting on-going project delivery. Master's degree or equivalent experience in environmental science, environmental engineering, or a related field. ~Experience leading the implementation of complex projects. ~ Strong analytical and technical writing skills. ~ Fluency in English. ~ Effective project communication skills. ~ Proficiency in Microsoft Office software. Ability to translate complex technical issues into practical business recommendations.

Ability to work independently in a remote, international environment. Excellent project management and prioritization skills. Resilience under strict project due dates and the ability to manage client needs.

Experience with regulatory frameworks, including EU-RED and CORSIA systems, sustainability standards, renewable energy certificates, (e.Familiarity with sustainability certification systems such as RSB.

Experience working with multinational companies on climate strategy or sustainability reporting. Flexible working hours Remote work in home-office with periodic in-person team meetings Professional development opportunities Location: The position is home office-based. Candidates must be located in Spain and possess a valid work permit for the country. Full-time. Temporary maternity cover, anticipated to last between 7 to 9 months.

📌 Sustainability Manager - Maternity Leave Cover (La Mancha)
🏢 Roundtable on Sustainable Biomaterials
📍 La Mancha