Careers | APTO

Where Data Meets Discovery

Our Mission

To continuously create high-quality AI data that leads technological innovation.

Our Vision

We want to create a world where anyone can take on challenges by establishing an environment where necessary data is accessible.

To that end, APTO focuses on the AI data business as a source of innovative discovery.

Our Values

Fearlessly
Discover and
Act

Hungry for
Knowledge and
Experience

Maximize
Organizational
Power

Face Sincerely
and Exceed
Expectations

Our BenefitsSupporting Team Growth and Happiness

Health & Wellbeing

Complete social insurance (Health, Welfare Pension, Employment, Workers' Comp)
Health checkup / Comprehensive medical exam aid (Once a year, fully covered)
Mental health support & counseling services
Fitness gym subsidy (up to 5,000 JPY/month)
Staff cafeteria, free drinks, snacks provided

Growth & Career

Book purchase subsidy (Unlimited, work-related)
Conference/Seminar support (Domestic & International)
Qualification support (Exams & Learning costs)
Internal study sessions / LT events (Weekly/Monthly)
1 on 1 Meetings & Career Consultation (Monthly)

Work-Life Balance

Flex-time system (Core time 10:00-15:00)
Remote work available (2-3 days/week, varies by role)
Full 2-day weekends (Sat/Sun/Holidays), 125 annual holidays
Paid leave (15 days first year, max 20), 75%+ uptake rate
Refresh leave, Summer leave, Year-end/New Year leave

Family & Childcare

Maternity/Paternity leave (Track record of use by all genders)
Shortened working hours for childcare (Until child finishes elementary school)
Childcare facility subsidy (up to 30,000 JPY/month)
Nursing care leave & shortened hours
Family allowance (10-20k JPY per spouse/child)

Housing & Commute

Rent subsidy (30-50k JPY/month)
Moving expense subsidy (Upon joining)
Full transportation reimbursement

Equipment & Environment

Latest PC & Display provided
Remote work equipment subsidy
High-performance GPU server access

Rewards & Evaluation

Industry-leading salary standards
Stock Option plan
Bonuses (2x/year) & Salary Review (1x/year)

Open PositionsPositions Available

Biz

BizDev/Solution Sales (AI Data Platform)Business Development

業務内容

You will be responsible for business development and solution sales for APTO’s AI data platform “harBest”. You will handle everything from proposing data strategies to implementation support for AI development departments of major enterprises.

New business development for enterprise clients
Hearing and proposal of data requirements in AI development projects
Planning and estimation of custom solutions
Promoting collaboration with partner companies
Sales strategy planning based on market analysis and competitive research

応募要件

3+ years of B2B sales experience
Sales experience in IT/SaaS industry
Track record of new client acquisition
Interest in AI or data-related services

雇用形態・待遇

Type: Full-time
Salary: 8M – 18M JPY (Determined based on experience/skills)
Location: Shibuya, Tokyo (Remote work available)
Hours: Flex-time (Core time 10:00-15:00)

この職種に応募する

Customer SuccessCustomer Success

業務内容

Support the success of customers who have implemented the harBest platform. From onboarding to continuous utilization support and upsell proposals, you will accompany the success of the customer’s AI project.

Onboarding support for new customers
Regular business reviews & utilization monitoring
Hearing customer issues and proposing solutions
Feedback to the product team
Contract renewal & upsell proposals

応募要件

2+ years of Customer Success or client-facing experience in IT
Data analysis & problem-solving skills
Project management experience

雇用形態・待遇

Type: Full-time
Salary: 6M – 10M JPY (Determined based on experience/skills)
Location: Shibuya, Tokyo (Remote work available)

この職種に応募する

Marketing OperationsMarketing Operations

業務内容

Responsible for overall operations of APTO’s marketing activities. You will handle a wide range of tasks from lead generation to nurturing and event management.

Operation of Marketing Automation tools
Lead management & scoring design
Planning and operation of webinars/events
Content marketing promotion
Management & reporting of marketing KPIs

応募要件

2+ years of B2B marketing experience
MA/CRM tool operation experience
Data analysis & reporting skills

雇用形態・待遇

Type: Full-time
Salary: 6M – 10M JPY (Determined based on experience/skills)
Location: Shibuya, Tokyo (Remote work available)

この職種に応募する

Head of Corporate Management (CFO Candidate)Head of Corporate Management

業務内容

As the person in charge of IPO preparation, you will oversee accounting, finance, legal, and general affairs. We expect you to participate in management as a CFO in the future.

Overall supervision & promotion of IPO preparation
Management of accounting and finance departments
Construction of internal controls & corporate governance
Fundraising & investor relations
Negotiation with auditing firms & securities companies
Participation in management meetings & reporting to executives

応募要件

IPO preparation experience or accounting/finance experience at a listed company
Management experience in accounting/finance departments
CPA qualification or equivalent expertise
Experience working in a startup environment is a plus

雇用形態・待遇

Type: Full-time
Salary: 8M – 15M JPY (Determined based on experience/skills)
Location: Shibuya, Tokyo
Stock options available

この職種に応募する

Dev

AI Data Research EngineerAI Data Research Engineer

業務内容

R&D for improving data quality required for AI model training. Catch up with the latest AI technology trends while working on automation and efficiency of data annotation.

R&D of data quality evaluation methods
Development of annotation automation tools
Dataset design for LLM/Multimodal AI
Survey of academic papers & internal knowledge sharing
Data design support in client projects

応募要件

Practical or research experience in ML/Deep Learning
Development experience with Python, PyTorch/TensorFlow
Data analysis & preprocessing experience
Ability to read English papers

雇用形態・待遇

Type: Full-time
Salary: 6M – 15M JPY (Determined based on experience/skills)
Location: Shibuya, Tokyo (Remote work available)

この職種に応募する

AI Data Platform EngineerAI Data Platform Engineer

業務内容

Responsible for development and operation of “harBest”, APTO’s AI data platform. Wide range of tasks from designing large-scale data processing infrastructure to developing annotation tool features.

Backend/Frontend development of harBest platform
Design & implementation of large-scale data processing pipelines
Feature development of annotation tools
Infrastructure construction & operation using AWS/GCP
Construction of MLOps pipelines

応募要件

3+ years of Web application development experience
Backend/Frontend development experience with Python, TypeScript, etc.
Experience using cloud services (AWS/GCP)
Database design & operation experience

雇用形態・待遇

Type: Full-time
Salary: 6M – 15M JPY (Determined based on experience/skills)
Location: Shibuya, Tokyo (Remote work available)

この職種に応募する

Our TeamTeam Members

CEO & Co-founder

Ryo Takashina

Engaged in infrastructure backend development in various industries. After becoming a freelancer, worked on backend development for a major HR company. Founded APTO in Jan 2020 after realizing data challenges in AI development.

COO

Yoichi Karino

Graduated from Rikkyo University. After working at a general publishing company and a cybersecurity company, joined APTO in 2022. Assumed current position in 2024. Supports solving corporate AI challenges starting with data.

Co-founder / CDO

Shunsaku Endo

Won numerous awards at internal competitions at Vantan Game Academy. Interested in AI development, co-founded APTO in Jan 2020. Currently manages both development and business as CDO.

Software Engineer

Jeongmyeong Lee

From South Korea. Gained extensive experience as a software engineer at venture companies, startups, and global enterprises. Joined APTO in 2025, working on product development.

BlogAPTO's Daily Life

2026.02.23

2026年 APTO社内新年会を開催しました!

先日、APTOの2026年新年会を開催いたしました。普段はリモートワークや遠方在住のため直接会う機会の少ないメンバーも一堂に会し、年の始まりにふさわしい、活気あふれる時間となりました。当日は日本語と英語が自然に飛び交い、APTOらしい多国籍でオープンな雰囲気の中、終始笑顔の絶えない会となりました。本記事では、その様子をご紹介いたします。続きをみる

2026.01.13

AIの未来を、日本から世界へ。ゼロから市場を創る挑戦を楽しむ。

APTOで働く多様なバックグラウンドを持つメンバーが、自身のキャリアや挑戦について語るインタビューシリーズ「APTalk（アプトーク）」。今回は異業種からAIスタートアップへ飛び込み、グローバルセールスとして海外展開を牽引するヌイン・カティーナにフォーカスします。日本発のAIを世界へ届けるため、ゼロから市場を創る挑戦と、その原動力に迫ります。続きをみる

2026.01.09

大手、外資、スタートアップを渡り歩いたエンジニアが語る、「本物の成長」がAPTOにある理由。

APTOで働く多様なバックグラウンドを持つメンバーが、自身のキャリアや挑戦について語るインタビューシリーズ「APTalk（アプトーク）」。今回は、大手企業、外資系AI企業、スタートアップと、幅広い環境を経験してきたフルスタックエンジニア、イ・ジョンミョンにフォーカスします。数々の現場を見てきた彼が語る、「本物の成長」がAPTOにある理由とは。エンジニア視点で見たAPTOの文化と、チームづくりへの想いに迫ります。続きをみる

2026.01.07

APTalk#4 世界の誰も答えを知らない。だから、僕たちの仕事は面白い。

APTOで働く多様なバックグラウンドを持つメンバーが、自身のキャリアや挑戦について語るインタビューシリーズ「APTalk（アプトーク）」。今回は、R&Dチームの中核として最先端のLLM研究を牽引する、機械学習エンジニアの寺澤にフォーカスします。目指すのは、AIとロボティクスが社会課題を解決する「究極のオートメーション」。その未来に向けた研究を、ゲームのように攻略し続ける原動力に迫ります。続きをみる

2026.01.06

あぷろぐ#1 『AIエージェント博 by AI博覧会』に参加しました！

今回から、APTOのイベントレポートシリーズ「あぷろぐ」をスタートします。「あぷろぐ」では、展示会やカンファレンスの現場でAPTOのメンバーが感じたことや学びを、担当者目線で記録していきます。イベントの様子に加え、業界の動きやAPTOがどのような視点で事業に向き合っているのかをお届けします。こんにちは。APTOでCSを担当している安増です。今回は、2025年12月に東京都内で開催された『AIエージェント博 by AI博覧会』にAPTOとして出展した体験をレポートします。続きをみる

2025.12.23

APTalk#3 「人の手」が生み出すAIで、誰もが「納得感のある人生」を送れる社会へ。

APTOで働く多様なバックグラウンドを持つメンバーが、自身のキャリアや挑戦について語るインタビューシリーズ「APTalk（アプトーク）」。第三弾となる今回は、COOとしてビジネス全体を牽引する狩野にフォーカスします。編集者からAIスタートアップの経営サイドへ。社会課題と向き合いながら、AIで何を実現したいのか。その考えと、見据える未来を聞きました。続きをみる

View all on note

FAQsFrequently Asked Questions

About Hiring & Selection

Can I apply without any experience in AI?

Yes, it is possible. In the interview, we focus more on your experience in non-AI areas. Regarding AI, we mainly evaluate your attitude towards interest and learning for catching up after joining the company.

What is the selection process like and how long does it take?

Depending on the position, we anticipate 2 interviews. If arrangement of the position occurs while judging aptitude during selection, additional interviews may be conducted to prevent mismatch. The duration is about 4 weeks from application to offer, depending on the number of interviews.

Can I apply even if I'm not thinking of changing jobs immediately?

Yes, we can conduct only a casual interview. Please state so in the “Message to the applicant” on the application page.

Are interviews online?

The final selection may be offline, but basically, we complete it online.

Working Style

Can I work remotely?

Remote work is available. To facilitate communication and collaboration, we encourage coming to the office as much as possible (typically 2-3 days a week).

What benefits does APTO offer?

We plan to expand further, including granting SO, to make it easier for employees to work.

◾️Holidays & Vacation

Annual paid leave
Weekends & Holidays
Summer vacation
Year-end and New Year holidays
Congratulatory and condolence leave
Maternity/Paternity leave
Childcare leave
Menstrual leave

◾️Benefits

Complete social insurance
Full transport reimbursement
Health checkup
Influenza vaccination
Book purchase cover
Conference fee cover
Internal study sessions
Internal team dinner support
1on1
Free drinks
Monitor lending

Data that sparks innovation

Unlock new possibilities for your business with APTO's AI data.
Feel free to get started by requesting our materials.

Download materials

Ask us a question