Design, build, and maintain production-grade ML systems with a focus on Large Language Models (LLMs).
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.
As an IAM Engineer, you will design and implement Money Forward's ID platform and provide technical leadership to engineering teams.
Manage the Application Platform team supporting BUYMA development teams with backend modernization, microservices, SRE practices, cloud scalability, and AI-assisted development.
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.
Provide senior technical support for Red Hat Enterprise Linux in hybrid-cloud environments, resolve complex customer issues, share knowledge, and coordinate with developers and QE to improve the product.
Lead server-side development and technical decisions for Loglass SaaS, including rearchitecture, performance improvements, workflow automation, and project leadership. Telework is included.
Design, develop, and operate payment and money-transfer functions for pixiv services, integrate external providers, prevent fraud, monitor reliability, and coordinate platform improvements with other teams.
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.
Lead the automation of team processes and cloud infrastructure setup for the AI development platform exaBase Studio.
Leads enterprise AI platform deployments across private cloud, hybrid cloud, and on-premises environments, handling infrastructure design, Kubernetes configuration, testing, rollout, and troubleshooting.
Develop and operate the backend foundation for pixiv Premium, a large subscription service, covering analysis, design, implementation, performance, safety, platform renewal, and team leadership.
Test web, mobile, API, cloud, telecom, and AI/ML systems through manual and automated penetration testing. Identify vulnerabilities, document findings, and validate remediation.
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.
Design and operate shared platform services across products, including authentication, authorization, integrations, governance, scalability, and reliability; home working is available.
Design, build, operate, and improve data-center and internal networks, covering private-cloud infrastructure, switches, servers, firewalls, external connections, traffic analysis, and security.
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.
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.
Develop AI products for commercial real estate, productionize models and data pipelines, build MLOps operations, and lead PoC-to-MVP application work with product teams. Remote work is available.
Lead Enterprise customers as a high-touch Sales Engineer, designing and running security PoVs, presenting assessment reports, and supporting architecture proposals.