Appier

Staff Software Engineer, C++ Backend Development (Ad Cloud Bidding) - Tokyo Relocation required

Tokyo, Japan Full Time

About the role

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 Staff Software Engineer, 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.

Responsibilities

  • Engage in the design of large-scale backend systems and distributed services
  • Contribute to technical roadmap and planning
  • Collaborate with cross-functional teams to deliver robust and high-performance systems
  • Troubleshoot production issues and contribute to root cause analysis
  • Ensure high reliability through best practices in service operation, monitoring, and deployment
  • Participate in on-call rotations and lead incident response when required

About You

[Minimum qualifications]

  • 8+ years of experience in software development
  • Proficient in modern C++ programming (C++11 and later)
  • Familiar with Unix/Linux environments
  • Solid understanding of system programming
  • Experience in developing low-latency (millisecond-scale) and high-throughput (>1K QPS per machine) systems
  • Experience in service optimization and performance tuning
  • Strong sense of ownership and good problem-solving skills

[Preferred qualifications]

  • Experience in modern build systems
  • Experience in operation automation tools
  • Experience with monitoring, logging, and alerting frameworks

[Language]

Fluent in English or Chinese.

Open to overseas candidates/Visa Support
This position is based in Tokyo, Japan. For international candidates, Appier's Japan office provides visa sponsorship to ensure a smooth transition to Japan.

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