Appier

Senior 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 Senior Software Engineer, you will contribute to building scalable backend systems while also participating in service operation activities, including deployment, monitoring, and incident response, to ensure reliable and high-performing distributed services.

Responsibilities

  • Design, implement, and optimize backend services
  • Participate in code reviews and contribute to system design discussions
  • Collaborate with cross-functional teams to deliver robust and high-performance systems
  • Troubleshoot production issues and contribute to root cause analysis
  • Support system deployment, monitoring, and maintenance in production environments
  • Participate in on-call rotations and lead incident response when required

About You

[Minimum qualifications]

  • BS/MS degree in Computer Science or related fields
  • 3+ years of experience in software development
  • Experience in modern C++ programming (C++11 and later)
  • Familiar with Unix/Linux environments
  • Good interpersonal and problem-solving skills and strong sense of ownership

[Preferred qualifications]

  • Good 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
  • Experience in modern build systems
  • Experience in operation automation tools

[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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