Join Zip, a dynamic fintech company, as a Senior Software Engineer II where you'll play a crucial role in designing and optimizing secure, scalable platforms. With operations in Australia, New Zealand, and the US, Zip connects millions of customers with merchants globally through innovative payment solutions. You'll work in a test-driven development environment, handling cloud-native applications that process billions in payments. The role demands expertise in C#, modern systems architecture, and engineering principles, offering both remote and in-person options from our Manhattan office. You'll lead architectural design, implement cloud-native solutions, and mentor junior engineers while enjoying competitive compensation ($160,000-$185,000) and comprehensive benefits. The position requires 10+ years of experience and offers opportunities to drive technical strategy, champion best practices, and shape the future of digital payments. Zip's values-driven culture emphasizes customer focus, ownership, collaboration, and innovation, making it an ideal environment for ambitious engineers seeking impactful challenges at scale.