The integration of sustainability into engineering education is an essential step towards preparing future engineers who can lead us towards a more sustainable world. By embedding these principles into their educational years, students are empowered to innovate and create with sustainability at the forefront of their minds, ensuring that the engineering feats of tomorrow are built on a foundation of ecological and social responsibility.

We present the EESF project (Engineering Education for a Sustainable Future) pursues to develop educational resources for the engineering students and test them in order to acquire the needed skills and competences, responding to SDG 4.7 and the EU Green Deal's call for equipping learners with sustainable development skills by 2030.

This approach is the goal of the EESF project (Enginering Education for a sustainable Future), an international collaboration, funded by the European Union, Erasmus +, that seeks to improve engineering education, specifically by improving green skills and developing sensitivity in terms of sustainability.

The overall objective of the project is to develop and implement innovative learning and teaching practices in engineering education at four higher education institutions aligned with the 2030 SDG framework. To carry this out, 40 faculty members and 200 students will test Open Educational Resources (OER) prepared as part of the project's tasks.

The first steps in establishing criteria for developing educational resources consist of conducting research and interviews to relevant stakeholder on the current status of sustainability implementation in HEIs and uncovering the key elements that must be taken into account when defining sustainability competencies and other learning outcomes. The result of this research is embodied in two documents with recommendations to consider when developing OERs that are discussed in this paper.

Keywords: ESD, SDGs, OERs, Sustainability, Engineering Education, Sustainable future, Sustainable mindset.