<h2>About the role</h2><p>Software engineers (Ad Cloud Bidding) at Appier Tokyo office build a wide range of platforms and services that interconnect data and AI with our customers and users. As a <strong>Staff Software Engineer</strong>, you will play a critical role in designing and building scalable and performant backend architecture, owning and driving the technical roadmap for sizable projects or services. You will also take responsibility for service operations – ensuring reliability, availability, and efficient deployment of large-scale distributed systems.</p><h2>Responsibilities</h2><ul><li>Engage in the design of large-scale backend systems and distributed services</li><li>Contribute to technical roadmap and planning</li><li>Collaborate with cross-functional teams to deliver robust and high-performance systems</li><li>Troubleshoot production issues and contribute to root cause analysis</li><li>Ensure high reliability through best practices in service operation, monitoring, and deployment</li><li>Participate in on-call rotations and lead incident response when required</li></ul><h2>About You</h2><h3>[Minimum qualifications]</h3><ul><li>8+ years of experience in software development</li><li>Proficient in modern C++ programming (C++11 and later)</li><li>Familiar with Unix/Linux environments</li><li>Solid understanding of system programming</li><li>Experience in developing low-latency (millisecond-scale) and high-throughput (>1K QPS per machine) systems</li><li>Experience in service optimization and performance tuning</li><li>Strong sense of ownership and good problem-solving skills</li></ul><h3>[Preferred qualifications]</h3><ul><li>Experience in modern build systems</li><li>Experience in operation automation tools</li><li>Experience with monitoring, logging, and alerting frameworks</li></ul><p><strong>[Language]</strong></p><p>Fluent in <strong>English or Chinese.</strong></p><p><strong>Open to overseas candidates/Visa Support<br></strong>This position is based in Tokyo, Japan. For international candidates, Appier's Japan office provides visa sponsorship to ensure a smooth transition to Japan.</p><p>#LI-SW1 #LI-Hybrid</p>