About the job
About Appier
Appier is a pioneering software-as-a-service (SaaS) firm harnessing the power of artificial intelligence (AI) to enhance business decision-making. Established in 2012, our vision centers around making AI accessible to all, with the mission of transforming AI into tangible return on investment (ROI) through intelligent software solutions. With a presence in 17 offices across APAC, Europe, and the U.S., Appier is listed on the Tokyo Stock Exchange (Ticker: 4180). For further details, visit www.appier.com.
About the Role
Join our Tokyo office as a Senior Software Engineer (Ad Cloud Bidding) and engage in the development of diverse platforms and services that unify data and AI for our clientele. In this role, you will play a critical part in building scalable backend systems, while also being actively involved in service operations, including deployment, monitoring, and incident management, ensuring our distributed services remain reliable and high-performing.
Responsibilities
- Design, implement, and enhance backend services
- Engage in code reviews and contribute to system architecture discussions
- Work collaboratively with cross-functional teams to deliver robust and high-performance systems
- Diagnose production issues and participate in root cause analysis
- Assist with system deployment, monitoring, and maintenance in live environments
- Join on-call rotations and lead incident response as necessary
About You
[Minimum Qualifications]
- Bachelor's or Master's degree in Computer Science or a related field
- 3+ years of professional experience in software development
- Proficiency in modern C++ programming (C++11 or later)
- Familiarity with Unix/Linux operating systems
- Strong interpersonal skills, problem-solving abilities, and a sense of ownership
[Preferred Qualifications]
- Solid understanding of system programming principles
- Experience in developing low-latency (millisecond-scale) and high-throughput systems (over 1K QPS per machine)
- Expertise in service optimization and performance tuning
- Familiarity with modern build systems
- Experience with operational automation tools
[Language Requirements]
Fluent in English or Chinese.
Open to International Applicants/Visa Support
This position is located in Tokyo, Japan, with visa sponsorship available for overseas candidates.

