Full-time

Japanese?

Visa maybe

Remote

AI

Terraform

Design, develop, and operate AI agent infrastructure using LLM platforms and agent frameworks to enhance business decision-making.

Full-time

Japanese?

Visa maybe

Remote

Backend

TypeScript

Develop and improve Loglass Management through customer-informed design, server-side features, performance optimization, refactoring, testing, and development-process automation.

Full-time

Japanese?

Visa maybe

Remote

Frontend

TypeScript

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.

Full-time

Japanese?

Visa maybe

Remote

AI

GenAI

Build an LLM-based sales product, implementing AI features, architecture, integrations, and quality improvements with a cross-functional team. Remote work is available.

Full-time

Japanese?

Visa maybe

Remote

Tech Lead

Backend

Lead backend-focused development of Akerun Digital ID, a multi-tenant SaaS. Define requirements, design and implement web applications, select technologies, and maintain the service.

Full-time

Japanese?

Remote

Fintech

Payments

GenAI

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.

Full-time

Japanese?

Remote

Tech Lead

Go

Rails

Design and develop services using microservices and REST APIs, with experience in DDD and Clean Architecture.

Full-time

Japanese?

Remote

AI

GenAI

Tech Lead

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.

Full-time

Japanese?

Remote

Tech Lead

Healthtech

Full-stack

Lead technology for healthcare products including an online medical consultation service. Design architectures, improve CI/CD and development processes, plan modernization, support prototypes, and guide engineers through code reviews.

Full-time

Japanese?

Visa maybe

Remote

Tech Lead

SaaS

Lead server-side development and technical decisions for Loglass SaaS, including rearchitecture, performance improvements, workflow automation, and project leadership. Telework is included.

Full-time

Japanese?

Remote

Management

Backend

Eng Manager

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.

Full-time

English OK

Visa likely

Relocation

No JP needed

TypeScript

Develop Atlas, an AI-based ontology platform for enterprise customers, with emphasis on backend systems, developer tooling, CI/CD, cloud infrastructure, observability, and automated testing.

Full-time

Japanese?

Remote

TypeScript

Rails

Healthtech

Design and develop applications for online medical services including curon, collaborating with product and design teams. The role may also cover operations, maintenance, improvements, technical selection and team building, with remote work available and two office days required weekly.

Full-time

Japanese (N1)

Remote

AI

Python

ML

Develop AI solutions from PoC through production, building models, APIs and MLOps platforms. Translate business needs with consultants and support client adoption. Remote work is available.

Full-time

Japanese?

Remote

Project Mgr

TypeScript

Vue

Lead development direction and project management for restaurant POS and store DX solutions, translating customer and business needs into system requirements and coordinating delivery.

Full-time

Japanese?

Remote

Python

GCP

Linux

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.

Full-time

English?

Remote

Cust Success

Cybersec

Cloud

Leads enterprise CLM and PKI deployments, integrations, training, and escalations while advising technical and executive stakeholders on certificate operations.

Full-time

Japanese?

Visa maybe

Remote

Network

Linux

Design, build, operate, and improve data-center and internal networks, covering private-cloud infrastructure, switches, servers, firewalls, external connections, traffic analysis, and security.

Full-time

Japanese?

Visa maybe

Remote

Backend

Go

Develop SaaS web applications for IoT access-control and keyless-rental services, focusing on backend design, operation, and performance. Remote work is available.

Full-time

Japanese?

Remote

TypeScript

GraphQL

React

Design and develop both frontend and backend applications for therapeutic apps and related services in a digital therapeutics team, using TypeScript, Prisma, GraphQL, React, and Redwood.js.

Full-time

Japanese?

Visa maybe

Remote

Data Science

ML

Lead data scientist for the Generative AI Lab, focusing on model evaluation and business application of AI technologies.