As a Principal Software Engineer, you will play a crucial role in delivering high quality releases to our customers by defining application architecture, designing, developing, troubleshooting, maintaining, optimizing and scaling BlackLine's cloud-based backend services and driving innovation into our product suite. In this role, you will work with management to identify strategic directions for system architecture. You will research, test, benchmark and evaluate new technologies, propose scaling solutions, collaborate with other teams to define and build new features, optimize existing features while writing elegant code, coaching and mentoring less experienced software engineers and communicating with people at all levels. In this position, every bit of your software design skill will be drawn upon in order to drive towards and implement best of breed features in a rapid iterative environment. Your attention to detail, tenacity, and creative problem-solving and thinking ahead will directly impact the company's success, as well as the success of your peers across the organization. If you have a passion for delivering products that make a difference, are driven to make things better in all that you do and are eager to work in a collaborative agile environment where Developers are dedicated to solving customer problems and innovating, you will be a great fit for the team.