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Migaku

Senior Frontend Developer

Migaku is a powerful Chrome extension and mobile app that transforms websites into effective language learning materials, helping users master new languages through immersive content.

engineeringremoteTokyo, JP
¥8M - ¥14M
full-time

Experience Requirements:

  • 5+ years of experience in software development

  • Deep experience with Vue 3 + Composition API and ideally Nuxt.js

  • Proficient in CSS with familiarity in Tailwind, SCSS, BEM, and preprocessors like Autoprefixer

  • Knowledge of project root folder tools such as ESLint, Stylelint, and Prettier

  • Experience with bundlers like Vite

Other Requirements:

  • Strong passion for language learning

  • "Ship-first" mindset who takes initiative and is willing to embrace technical debt

Responsibilities:

  • Maintain and develop new features for all our web-based assets: Website, iOS & Android Apps, Browser Extension, and Web App

  • Collaborate with team members on integration work across different platforms

  • Implement pixel-perfect versions of UI designs and ensure fluid animations

  • Interact with users to triage and fix issues

  • Write and maintain unit and end-to-end tests to ensure high-quality code

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LegalOn

Bilingual (JPN/ENG) Account Executive

LegalOn is an AI-powered platform for contract review, helping legal teams negotiate stronger contracts up to 85% faster with its advanced capabilities.

salesonsiteTokyo, JPfull-time

Experience Requirements:

  • 4+ years of experience as an Account Executive, or 3+ years in the legal industry working with attorneys/contracts managers, and/or VP/C-level executives

Other Requirements:

  • fluent in both Japanese and English

  • excellent communication skills

  • strong work ethic

  • proven track record of success in SaaS sales

  • Experience in the legal/legaltech industry is a big plus!

  • self-motivated individual with a passion for sales, growth, and technology

Responsibilities:

  • Identify potential customers and generate new business opportunities

  • Identify opportunities to expand accounts with Japanese customers that have a US presence

  • Contact and qualify potential customers

  • Set appointments and follow up on opportunities

  • Collaborate with the sales development and Marketing teams to develop strategies for reaching sales targets

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Notion

Enterprise Premium Support Agent, Japan

Notion is an all-in-one workspace blending note-taking, project management, and collaboration with AI assistance. Write. Plan. Collaborate.

engineeringonsiteTokyo, JPfull-time

Experience Requirements:

  • You have at least 10+ years of experience in B2B customer-facing technical roles, such as technical support, technical account management, or solutions engineering

Responsibilities:

  • Provide white-glove, dedicated account support to enterprise customers, acting as a technical advisor and point of escalation for complex support issues

  • Partner with Sales, Customer Success, and Professional Services teams to ensure seamless onboarding, product adoption, and expansion for key enterprise accounts

  • Lead the troubleshooting and resolution of advanced technical issues across Notion’s platform and embedded partner applications

  • Act as a bridge between customers and Notion’s engineering team by reproducing issues and driving resolution through detailed bug reports

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ExecutiveSearch.AI

Candidate Manager I

AI-powered executive search firm in Tokyo, using AI to identify and approach top talent for tech companies in Japan.

recruitingremoteShibuya, Tokyo, JPfull-time

Experience Requirements:

  • Previous experience as a tech recruiter with a track record of making placements in complex organizations

  • Strong empathy and people skills

  • Fluency in Japanese and English or demonstrated study towards fluency in both languages

  • Experience with CRM, ATS, or other sales tracking tools

  • Above-average technical aptitude among your peers

Responsibilities:

  • Handpick target lists of candidates for jobs at our clients.

  • Meet the best and hardest-to-reach candidates in Japan’s tech industry.

  • Be their professional career advisor and guide them towards the best career decisions.

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Ingenta AI

Senior AI Engineer

Ingenta AI provides value-centered AI solutions using Graph AI technology for various industries, including e-learning, e-commerce, and drug discovery. Their solutions aim to improve efficiency and create new business models.

engineeringonsiteTokyo, JPfull-time

Education Requirements:

  • BS or MS degree in Computer Science or a related field, or equivalent work experience.

Responsibilities:

  • Maintain deployed AI/ML models, ensuring their reliability and performance over time.

  • Design and develop AI/ML models and algorithms to drive innovative applications and products.

  • Perform data mining, data cleaning, and data preprocessing.

  • Conduct experiments and prototype new models to evaluate their performance and potential impact.

  • Collaborate with cross-functional teams, including AI scientists, product managers, and software engineers, to understand business needs and develop scalable and efficient AI/ML solutions.

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Ingenta AI

Senior Backend Engineer

Ingenta AI provides value-centered AI solutions using Graph AI technology for various industries, including e-learning, e-commerce, and drug discovery. Their solutions aim to improve efficiency and create new business models.

engineeringonsiteTokyo, JPfull-time

Education Requirements:

  • BS (or higher) in Computer Science, or a related field.

Experience Requirements:

  • 5+ years of production level experience in one of: Python, Go, Rust or similar language.

Responsibilities:

  • Build services, products and infrastructure at the intersection of machine learning and distributed systems.

  • Lead/contribute to engineering efforts from design to implementation, solving complex technical challenges around scalability, reliability and resiliency.

  • Design and build advanced CI/CD infrastructure and pipelines; help teams debug and build projects and workflows

  • Mentor early career engineers; provide technical and cultural guidance

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Ingenta AI

Senior Frontend Engineer

Ingenta AI provides value-centered AI solutions using Graph AI technology for various industries, including e-learning, e-commerce, and drug discovery. Their solutions aim to improve efficiency and create new business models.

engineeringonsiteTokyo, JPfull-time

Experience Requirements:

  • 3+ years of software development experience, with an emphasis on modern frontend technologies (TypeScript/React/Next.js) and building delightful user interfaces.

Responsibilities:

  • Understand the business scenarios, collaborate with UI/UX designers, Product Managers, and customers to explore and brainstorm new features which yield business value.

  • Lead or own the frontend design of new features and drive the implementations.

  • Develop and execute according to both short- and long-term roadmaps. Make effective tradeoffs that consider business priorities, user experience, and a sustainable technical foundation.

  • Follow the best software development practices, and hold the high engineering bar for the team by regularly leading design, code review and test plan reviews.

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Google DeepMind AI Tools

Research Scientist, Generative Models - Tokyo

A suite of AI tools from Google DeepMind including Gemini, Veo, Imagen 3, and AlphaFold.

scienceonsiteTokyo, JPfull-time

Education Requirements:

  • PhD in a relevant technical field or equivalent practical experience

Experience Requirements:

  • Research and development experience in media generative and/or restoration models, including but not limited to audio, images, video, and language

  • Experience coding in one of the following programming languages including but not limited to: Python, C or C++

Responsibilities:

  • Research and development of new technologies for audio generative models including text-to-speech, audio restoration and separation, and music and environmental sound generation.

  • Collaborate with other research scientists and engineers to implement prototypes for new products, and work with product groups in Google to identify and implement approaches that AI can be used to improve existing and/or create brand-new Google products.

  • Report and present research findings and developments clearly and efficiently both internally and externally, verbally and in writing.

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Carnot

Project Lead

Carnot builds and implements generative AI tools, most notably jinbaflow, a workflow automation tool.

designonsiteTokyo, JP
¥5M /yr - ¥10M /yr
full-time

Benefits:

  • Free drinks

  • Shorter work hours for parents

  • Parental leave

  • Financial support for childcare

  • Language learning support

Experience Requirements:

  • 3+ years of professional design experience

  • Business level Japanese

Responsibilities:

  • Collaborating with clients and internal/external designers and engineers

  • Conducting user research

  • Designing user interfaces

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Carnot

Senior Web Application Engineer (PHP) - Tokyo

Carnot builds and implements generative AI tools, most notably jinbaflow, a workflow automation tool.

engineeringhybridTokyo, JP
¥7.5M /yr - ¥12M /yr
full-time

Benefits:

  • Commuting allowance

  • Company laptop

  • Flexible start-time

  • Social insurance

  • Parental and childcare support

Experience Requirements:

  • 10+ years of backend development experience

  • 5+ years of PHP development experience

Other Requirements:

  • Conversational Japanese

  • Business Level English

Responsibilities:

  • Maintain and improve the system's stable operation

  • Enhance the quality of the current product

  • Address technical challenges

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Carnot

Mid-level Web Application Engineer (PHP) - Tokyo

Carnot builds and implements generative AI tools, most notably jinbaflow, a workflow automation tool.

engineeringhybridTokyo, JP
¥6M /yr - ¥9M /yr
full-time

Benefits:

  • Commuting allowance

  • Company laptop

  • Flexible start-time

  • Social insurance

  • Parental and childcare support

Experience Requirements:

  • 5+ years of backend development experience

  • 3+ years of PHP development experience

Other Requirements:

  • Conversational Japanese

  • Business Level English

Responsibilities:

  • Maintain and improve the system's stable operation

  • Enhance the quality of the current product

  • Address technical challenges

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Carnot

Senior Backend Engineer (TypeScript) - Tokyo

Carnot builds and implements generative AI tools, most notably jinbaflow, a workflow automation tool.

engineeringhybridTokyo, JP
¥7M /yr - ¥12M /yr
full-time

Benefits:

  • Commuting allowance

  • Company laptop

  • Flexible start-time

  • Social insurance

  • Parental and childcare support

Experience Requirements:

  • 5+ years of backend development experience

  • Experience in all stages of the software development lifecycle

  • Team development and leadership experience

Other Requirements:

  • Bilingual proficiency (Japanese and English)

Responsibilities:

  • Stabilization of the MicoCloud Delivery Platform

  • New feature development

  • Product updates

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Carnot

Visual Designer

Carnot builds and implements generative AI tools, most notably jinbaflow, a workflow automation tool.

designonsiteTokyo, JPfull-time

Benefits:

  • Free drinks

  • Shorter work hours for parents

  • Parental leave

  • Financial support for childcare

  • Language learning support

Experience Requirements:

  • 3+ years of professional design experience using tools like Photoshop or Illustrator

  • Business-level Japanese proficiency

Responsibilities:

  • Collaborating with clients and internal/external designers and engineers

  • Conducting user research

  • Designing user interfaces and visual assets

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Carnot

UX Engineer

Carnot builds and implements generative AI tools, most notably jinbaflow, a workflow automation tool.

designonsiteTokyo, JPfull-time

Benefits:

  • Free drinks

  • Shorter work hours for parents

  • Parental leave

  • Financial support for childcare

  • Language learning support

Experience Requirements:

  • 3+ years of front-end development experience using JavaScript and CSS in Japan

  • Business level Japanese

Responsibilities:

  • Collaborate with clients and team members

  • Lead design and development from a technical perspective

  • Implement challenging project parts

  • Lead team for project success

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Carnot

Senior Full-Stack Software Engineer

Carnot builds and implements generative AI tools, most notably jinbaflow, a workflow automation tool.

engineeringhybridTokyo, JP
¥5M /yr - ¥9M /yr
full-time

Benefits:

  • Visa sponsorship

  • Free drinks

Experience Requirements:

  • Mid-level or above

  • Knowledge of NodeJS or desire to learn coupled with experience in one of C++, Python, PHP, or Rust

  • Fluent in English

Other Requirements:

  • Love of learning and desire to become a domain expert

  • Self-motivated, client-oriented thinking

  • Strong design, presentation, and collaboration skills

Responsibilities:

  • Translate complex client requirements into practical solutions

  • Implement front, back, and infrastructure components

  • Maintain and enhance existing infrastructure

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Carnot

Engineering Manager (Genesis)

Carnot builds and implements generative AI tools, most notably jinbaflow, a workflow automation tool.

engineeringhybridTokyo, JP
¥10M /yr - ¥12.5M /yr
full-time

Benefits:

  • Employee stock option plan

  • New tech gear

  • Support for attending conferences

  • Book purchases

  • Free drinks

Experience Requirements:

  • Over 3 years of Engineering management experience

  • Over 5 years of experience developing software

Other Requirements:

  • Ability to communicate and work in English

  • Experience working at a SaaS startup company

  • Understanding of QA practices, especially test automation

Responsibilities:

  • Create succession strategies

  • Recruit team members

  • Share business vision and team missions

  • Facilitate team ceremonies

  • Provide visibility on team progress

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Carnot

Founding Engineer

Carnot builds and implements generative AI tools, most notably jinbaflow, a workflow automation tool.

engineeringonsiteTokyo, JP
6.5M /yr - 8M /yr
full-time

Benefits:

  • Relocation assistance

  • Workspace allowance (up to JPY150k)

  • Social events

  • Cultural immersion

Education Requirements:

  • Bachelor's, Master's, or Ph.D. in Computer Science (or equivalent capability)

  • Exceptional college grads with industry experience considered

Experience Requirements:

  • 3+ years of experience building complex systems quickly

Other Requirements:

  • Self-motivated

  • High ownership

  • Low ego

  • Passion for building a world-class engineering culture in Japan

Responsibilities:

  • Full-stack web development

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Quantexa News Intelligence

Technical Lead

AI-powered news intelligence platform providing global news aggregation, NLP enrichment, and advanced analytics.

engineeringhybridTokyo, JPfull-time

Benefits:

  • Competitive salary

  • Company bonus

  • Free Calm App Subscription

  • Annual leave, national holidays + birthday off!

  • Company wide socials

Experience Requirements:

  • 5+ years of industry experience in data engineering

  • 2+ years of experience in a lead role

  • Proficiency in Scala, Java, Python, or similar

  • Expertise building and deploying data processing systems

  • Experience with modern development tooling and DevOps technologies

Responsibilities:

  • Lead, support, and mentor a team of junior data engineers

  • Write efficient and fault-tolerant code

  • Configure and deploy Quantexa software using Spark, Hadoop, Scala, Elasticsearch

  • Act as a trusted source of knowledge for clients

  • Collaborate with solution architects and R&D engineers

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Quantexa News Intelligence

Senior Data Engineer

AI-powered news intelligence platform providing global news aggregation, NLP enrichment, and advanced analytics.

engineeringhybridTokyo, JPfull-time

Benefits:

  • Competitive salary

  • Company bonus

  • Annual leave, plus national holidays + your birthday off!

  • Well-being days

  • Volunteer Day off

Experience Requirements:

  • 4+ years of industry experience in data engineering

  • Proficiency in Scala, Java, Python, or similar

  • Expertise building and deploying data processing systems

  • Experience with modern development tooling and DevOps technologies

Responsibilities:

  • Write efficient and fault-tolerant code

  • Configure and deploy Quantexa software

  • Act as a trusted source of knowledge for clients

  • Collaborate with solution architects and R&D engineers

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Hello AI Tools

Sales Manager - HelloX

Hello, Inc. develops and operates AI-powered tools for restaurant reservations (AutoReserve) and restaurant management (Respo), focusing on efficiency and global reach.

saleshybridTokyo, JP
4800000 JPY - 16500000 JPY
full-time

Benefits:

  • Stock options

  • Commute allowance (up to 100,000 JPY/month)

  • Rent subsidy (30,000 JPY/month within 3km of the office)

  • Social insurance

  • Workers' accident compensation insurance

Experience Requirements:

  • 3+ years of experience in corporate negotiations

  • Team management experience

  • Self-management

  • Empathy with Hello's mission

Responsibilities:

  • Lead generation and sales of Respo

  • Team building and management

  • Development of sales strategies and KPIs

  • Product feedback to development team

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