The Internet-of-things (IoT) is emerging as the backbone for industrial automation. The tremendous impact of IoT to industrial applications is a key reason for IoT research and developments to grow dramatically in importance and economic impact for the next decade. At the edge of the IoT, ultra-thin devices with extremely small software memory footprints need to be cheap and capable to run with extremely small amounts of energy support over a very long lifetime. At the same time, IoT software must provide smart functions including real-time computing capabilities, connectivity, security, safety, and remote update mechanisms. These constraints put a high pressure on IoT software development based on the specific properties of IoT devices. The ESIT 2017 joint academic/industry workshop will focus on software development and maintenance of IoT devices addressing the very limited resources and power dissipation of IoT edge nodes in the context of a very long life cycle in an operational IoT network. This covers issues like software synthesis, configurability, safety, security, upgrades, fault recovery, maintenance as well as constraints and opportunities from newly emerging IoT hardware platforms. The workshop intends to provide an open platform for exchange and communication on new directions and requirements to academia and industry. We plan to especially give industrial speakers and leading research experts a platform to present the requirements and most recent results in today's and future industrial IoT-constrained software development and maintenance.