Design and operate production AI agents for customer-facing products in Money Forward’s CDAO Office.
Build data pipelines and machine-learning models for commercial real estate, tune inference, and lead AI product PoCs and MVPs with business teams. Hybrid remote work is available in Tokyo.
Build AI Worker VoiceAgent’s web frontend, designing visual interfaces and admin features, selecting architecture, and delivering releases with TypeScript and React in a hybrid office/home role.
Lead multi-cloud architecture, infrastructure as code and container platforms for public-sector document services, balancing availability, security and operating cost.
Manage the Application Platform team supporting BUYMA development teams with backend modernization, microservices, SRE practices, cloud scalability, and AI-assisted development.
Leads product planning and hands-on development for DX SaaS and AI systems, using field research to shape product vision, roadmaps, prioritized features and ongoing improvements.
Build and operate COLOPL game infrastructure, automate Kubernetes clusters and Operators, assess new features, optimise network performance and troubleshoot with eBPF.
Operate and improve database reliability across a microservices platform supporting a mobility service. Standardize database operations, improve observability, automate upgrades, support safe schema changes, and build systems for performance testing and backups.
Build the Corporate IT function, setting strategy, budgets and governance while leading engineers, vendors, security planning, IT roadmaps and executive alignment.
Improves security across web products and cloud infrastructure, managing vulnerabilities and CI/CD checks while partnering with engineers on risk reviews, remediation, and incident readiness.
Design, build, and maintain scalable backend systems for Fanicon, collaborate with product and engineering stakeholders, lead engineers, and improve architecture, scalability, and reliability.
Leads engineering teams for BUYMA, a cross-border C2C marketplace, coordinating development, architecture, process improvement, people management, and cross-functional projects.
Senior security engineer joining the SRE team to secure products through penetration testing, application and AI security, automated controls, and audit support.
This software engineering role leads AI application development for the AI Platform Business and is located in Minato, Tokyo, Japan.
Design and operate shared platform services across products, including authentication, authorization, integrations, governance, scalability, and reliability; home working is available.
Build Builder Work’s full-stack products, including a data-driven matching engine, AI/LLM features, internal systems, and new qualification-support services from design through operations.
Develop and operate the backend foundation for pixiv Premium, a large subscription service, covering analysis, design, implementation, performance, safety, platform renewal, and team leadership.
Build and operate the data platform and execution infrastructure for AI and algorithmic products, using BigQuery, Google Cloud, AWS, Python, Go, and related tools. The role supports large-scale taxi app data, machine-learning workflows, and production reliability.
As an IAM Engineer, you will design and implement Money Forward's ID platform and provide technical leadership to engineering teams.
Develop VRoid Hub and VRoid SDK from planning through release, coding, reviewing code, making technical decisions, and using Ruby on Rails, React, AWS and Kubernetes.
Design, build, and operate Enigmo’s AI Platform for BUYMA, spanning search, data pipelines, MLOps, model-serving APIs, observability, reliability, and cost-conscious cloud architecture.
Leads design and delivery of a new Go-based corporate card platform, covering public APIs, multi-tenant architecture, performance, security, testing, and operations.
Develop and operate shared user-management, account, payment, and web-store platforms supporting multiple F2P and MMO online games. Design scalable systems, tune performance, and maintain reliable service operations.