Avant is seeking a Principal Software Engineer to help shape the future of our financial technology platform. In this role, you’ll tackle complex system challenges at scale, influence technical strategy across teams, and build solutions that directly impact millions of customers. You’ll work across backend, frontend, and infrastructure layers, driving innovation in a fast-moving, high-impact environment. As a senior individual contributor, you’ll set the technical direction, drive cross-team initiatives, and mentor others without direct reports. You’ll have broad autonomy, the authority to influence decisions, and the responsibility to ensure execution at a high standard.