Build an LLM-based sales product, implementing AI features, architecture, integrations, and quality improvements with a cross-functional team. Remote work is available.
Lead multiple product teams for Fanicon, aligning business, product, and technology. Manage engineers, support technical decisions, and improve processes, quality, and team growth.
Lead customer projects for major Japanese companies from scope and architecture through data pipelines, implementation, rollout and operations, coordinating departments. Remote work is available.
Design and operate reliable payment and financial systems, covering transaction integrity, recovery, compliance, cloud infrastructure, and new financial products. The role requires 5+ years of web application experience and leadership across multiple technical domains.
Lead customer-specific software projects for major Japanese companies, covering requirements, architecture, data pipelines, implementation, deployment, and operations. Remote work is available.
Lead AI-centered software architecture and development at STORES, building agent-driven development environments, improving products, and guiding high-difficulty projects across applications, infrastructure, and teams.
Design and operate shared platform services across products, including authentication, authorization, integrations, governance, scalability, and reliability; home working is available.
Leads a four-person Android team, combining people management and hiring with development-process improvements, cross-team coordination and hands-on Kotlin app work. The role also covers Android quality and incident response.
Leads people and technology management for software teams building B2B SaaS products. Starts as an engineer, then expands management responsibilities; remote work is available.
Leads a five-person Backend team, managing engineers while shaping technical direction and development processes. Handles backend incidents and contributes hands-on to selected projects for a consumer AI conversation app.
As an IAM Engineer, you will design and implement Money Forward's ID platform and provide technical leadership to engineering teams.
Lead backend development management and technology strategy for the USEN PAY cashless payment service. Design and operate highly available, robust, scalable systems while improving team productivity and engineering quality. The role offers flexible hours and a hybrid work style in Tokyo.
Redesigns and develops a B2B e-commerce procurement-integration system end to end with Kotlin, Spring Boot and PostgreSQL on AWS, using AI coding agents such as GitHub Copilot.
Lead engineering teams building Fanicon and other THECOO products.
Lead development of merchandising systems for ASKUL and LOHACO e-commerce, from requirements with merchandisers to architecture, delivery and operation, on Kotlin, TypeScript, AWS and GCP.
Develop and operate PayPay Securities backend services with Java, PHP, Spring Boot, Kotlin, and MySQL/AuroraDB, designing reliable high-throughput systems and resolving infrastructure and application issues.
Leads web and app development projects from client discussions and requirements definition through team setup, release, and ongoing operations, coordinating designers and engineers.
Lead development of an HR tech product for digital-skills assessment and employee development, while shaping agile teams, technical direction, hiring, and engineering management.
Lead product strategy and roadmap for Fanicon and +KIRARI, turning user and business needs into priorities, requirements, and measurable improvements with designers and engineers.
We are looking for an experienced Backend Software Engineer to join the team behind LINE's Messaging Platform. This role involves designing, implementing, and evolving critical backend systems that enable global real-time communication at scale.
Lead QA strategy for an AI-enabled SaaS platform, designing quality processes, governance, measurement, and test automation across the development organization. Remote work is available.
Build backend services for an AI conversation app, taking work from requirements through REST API design, implementation and release. Develop security, user-management and online-payment foundations, while improving database performance and scalability.
Design, build, and operate AWS cloud infrastructure for a cashless payment service. Improve Terraform-based infrastructure as code, CI/CD automation, observability, performance, cost, availability, and platform reliability.