The 11th IEEE/IFIP Workshop on Software Technologies for Future Embedded and Ubiquitous Systems (SEUS 2015) follows on the success of 10 previous editions in Reno, Nevada (2014), Paderborn, Germany (2013), Waidhofen/Ybbs, Austria (2010), Newport Beach, USA (2009), Capri, Italy (2008), Santorini Island, Greece (2007), Gyeongju, Korea (2006), Seattle, USA (2005), Vienna, Austria (2004), and Hokodate, Japan (2003), establishing SEUS as one of the emerging workshops in the field of embedded and ubiquitous systems. SEUS 2015 will continue the tradition of fostering cross-community scientific excellence and establishing strong links between research and industry. The fields of both embedded computing and ubiquitous systems have seen considerable growth over the past few years. Given the advances in these fields, and also those in the areas of distributed computing, sensor networks, middleware, etc., the area of ubiquitous embedded computing is now being envisioned as the way of the future. The systems and technologies that will arise in support of ubiquitous embedded computing will undoubtedly need to arise a variety of issues, including dependability, real-time, human-computer interaction, autonomy, resource constraints, etc. All of these requirements pose a challenge to the research community. The purpose of SEUS 2015 is bringing together researchers and practitioners with an interest in advancing the state-of-the-art and the state-of-practice in this emerging field, with the hope of fostering new ideas, collaborations and technologies. SEUS provides a forum in which attendees discuss technological and scientific advances, ranging from conceptual and theoretical research works up to application-oriented, standards-driving, innovative designs, and practical/experimental results. The main goal is to bring together researchers from all over the world, to foster a stimulating and fruitful exchange amongst researchers working on similar topics, to discuss ideas, exchange field experiences and to find solutions together to the problems facing software and hardware technologies for embedded and ubiquitous systems. SEUS is supported by IFIP Working Group 10.2 - Embedded Systems. Its 2015 edition will be held in conjunction with the 18th IEEE Symposium On Real-time Computing (ISORC), in the City Campus of the AUT University, in the heart of Auckland, New Zealand. In addition, the IEEE Workshop on Self-Organizing Real-Time Systems (SORT) will be co-located with SEUS 2015.