Senior Software Engineer, Backend Development

About Appier Appier (TSE: 4180) is an AI-native Agentic AI as a Service (AaaS) company that empowers businesses to create value through cutting-edge AdTech and MarTech solutions. Founded in 2012 with the vision of “Making AI Easy by Making Software Intelligent,” Appier helps businesses turn AI into ROI through its Ad Cloud, Personalization Cloud, and Data Cloud—each powered by Agentic AI that enables autonomous, adaptive, and real-time decision-making. Today, Appier operates 17 offices across APAC, the US, and EMEA, and is listed on the Tokyo Stock Exchange. Learn more at www.appier.com . About the role Software engineers at Appier build a wide range of platforms and services that interconnect data and AI with our customers and users. As a Senior Software Engineer, Backend Development , you will design and build scalable and performant backend architecture, own and drive the technical roadmap for sizable projects or services, mentor junior engineers, and facilitate high performance agile teams collaborating with cross-functional teams. Responsibilities Key owner of sizable engineering projects and services Lead system designs and provide technical guidance to team members. Mentor engineers in cross-team development processes. Lead code reviews to ensure high quality coding standards Facilitate agile process collaborating with cross-functional teams. Initiate and lead team-level technical, process and growth initiatives Continuously improve the system's observability, incident management, DevOps and production operational SOPs. Develop and operate scalable, reliable and maintainable service-based softwares and related components. Responsible for laying the foundation for the platform as well as proposing solutions to ease software development, monitoring of software, etc. Profiling and performance tuning of critical components Participate in idea brainstorming and contribute ideas to technology, algorithms and products Participate on-call rotation within Backend team to ensure product reliability and scalability About you [Minimum qualifications] 5+ years of experience in software development Leadership experiences such as mentoring junior engineers, facilitating an agile process. Ability to build web services on Linux. Proficient in one or more of the following languages: Pyt hon/Scala/Go/Java/C++ Good knowledge of Network API Design ( e.g. REST or GraphQL). Good understanding of any SQL/NoSQL database (MySQL / MongoDB / Redis / etc.) Familiar with git. Familiar with AWS, GCP or Azure. Proactive, good interpersonal and problem-solving skills. [Preferred qualifications] BS/MS degree in Computer Science or related field. Technical leadership experiences Good at profiling and debugging tools. High performance network service on Linux. Design and architect large scale distributed systems. Design and implement distributed algorithms and data structure. Expert in some of the following CS Domains: Nginx / HAProxy. Operation automation tool (such as Ansible). Continuous integration / continuous deployment Monitoring and alert system (Prometheus / Nagios). Functional programming. Data Intensive Application Design. Web Frontend and Javascript. #LI-AK1