Early Career Investigators (ECIs) are generally defined as senior graduate students through pre-tenure faculty. The ECI working group formed in Fall 2011 to engage with, understand the needs of, and develop resources for IRIS-related ECIs. Our mission is to organize mentorship opportunities and resources aiding professional development of ECIs as they finish graduate school and work towards permanent jobs in industry or academia. The objective of this effort is to lower energy and knowledge barriers, boosting the effectiveness, productivity, and quality of life of young researchers and educators. Although we focus on ECI topics most relevant to the IRIS community, our goal is to develop and support resources that are beneficial to a wide range of earth scientists.