Software Engineer, Ads Backend

業務内容

• Participate in architectural design and iteration of robust, scalable online and offline backend systems for the state-of-the-art ad delivery platform.
• Drive engineering efforts across core domains: Ranking Backend (ad prediction/delivery), Premium Ads, Targeting & Custom Audience, and Measurement (cross-platform analytics).
• Collaborate closely with cross-functional teams (Ads Ranking ML, Ads Foundation, Data Platform, AI Infrastructure) to build resilient, high-quality ad products.

技術スタック

必須スキル

• 3+ years of backend development experience for high-traffic web services
• Proficiency in Java, Kotlin, or Golang (open to C++, C#, Python)
• Kafka, Redis, SQL, and exposure to NoSQL databases
• Business-level English and conversational-level Japanese

歓迎スキル

• Experience in advertising/Ad Tech
• Strong Java skills (failure analysis, design of classes/interfaces)
• Architecture design in high-traffic web services
• AI usage in daily engineering
• Microservice/Service Mesh architecture
• GitHub, AWS, SpringBoot, MySQL, Hive, Spark, Flink, Docker, Kubernetes
• Large-scale data processing techniques
• Basic understanding of ML, statistics, and math
• Experience leading full lifecycle of a project and collaborating with product stakeholders
• Business-level Japanese

キャリア成長観点

• Opportunity to specialize in high-throughput, low-latency backend systems and scalable architecture within the Ads platform.
• Exposure to end-to-end ads product lifecycle (Ranking, Targeting, Measurement) and cross-functional collaboration with ML, data, and AI infrastructure teams, enabling broader technical and product leadership.