• Full-time

Publication date: 2026.07.01

[Flexible/Hybrid] Tech Lead (Potential PM-level candidate for AI development projects)

  • System Engineers / Infrastructure Engineers / Web Engineers / Game Developers
  • Tokyo
  • Salary 7 to 10 million yen
【フレックス/ハイブリッド】テックリード(AI開発案件におけるポテンシャルPM層)
職種Position System Engineers / Infrastructure Engineers / Web Engineers / Game Developers
会社概要Company profile We are a "Generative AI-integrated consulting firm" centered on IT consulting and AI development. Beyond standard IT consulting and contract development, we leverage AI agents in our consulting services, develop AI SaaS products, and operate platforms for freelancers. By staying at the forefront of technology and seizing the trends of the times as opportunities, we continuously challenge ourselves to expand the potential of both individuals and organizations. In the generative AI space specifically, we actively support new business planning by engaging subject matter experts as advisors and hosting regular internal study sessions.

Led by a 28-year-old CEO with a Big 4 background, our team comprises a CTO with executive experience at listed companies and major tech ventures, young consultants from firms like the Big 4 and Accenture, and a diverse group of engineers. We have grown to a workforce of 50 employees with an average age of 30.7 and an average annual income exceeding 10 million yen (as of January 2026).
仕事内容Job description In our Generative AI Division, you will lead generative AI development as a Tech Lead while aiming to advance into a Project Manager (PM) role.

While you will initially be hands-on as an engineer, we place high value on your ambition to move into upstream processes, such as defining requirements and designing the overall project architecture. Prior experience in generative AI development is not required.

As our organization currently numbers just under 60 people, you will have the opportunity to work directly under the CTO and CAIO (Chief AI Officer), gaining cutting-edge knowledge in generative AI while progressing toward a PM role. This position offers significant autonomy, allowing you to handle everything from technology selection to team management.

【Specific Responsibilities】
・Technology Selection & Architecture Design: Proposing and implementing optimal technical configurations in the generative AI and AI agent domains.
・Project Leadership: Managing development team progress, conducting code reviews, and resolving technical issues.
・Transitioning to PM Tasks: Clarifying technical requirements with clients and defining project scope (no prior experience required; OJT provided).
・Staying Current with Technology: Evaluating the latest research papers and methodologies regarding LLMs (Large Language Models) and integrating them into products.

【Management Team (Generative AI Division)】
◼️CAIO (Chief AI Officer)
A multilingual (Japanese, Chinese, Korean, English) generative AI specialist. After working as an AI engineer at a major tech giant (GAFA)—focusing on areas like speech processing—he joined Acrosstudio. He excels at optimizing systems for specific tasks through LLM fine-tuning and AI agent development. Recently, he has focused on developing multimodal LLMs and agent memory systems.

◼️Executive Officer & CTO
Possesses an extensive track record in Agile product development and in establishing or revitalizing technical organizations, including global development hubs. Most recently, serving as CTO at both startups and publicly listed companies, he has led global talent acquisition (including in Japan), engineering management, AI model construction, and product planning.
応募資格Requirement 【Must-Haves】
・3+ years of development experience in frontend, backend, or infrastructure
・Experience as a team leader, mentor, or in a similar capacity (leading a small team of 1–2 people is acceptable)
・Strong interest in and a willingness to learn about generative AI technologies

【Nice-to-Haves】
・1+ years of experience building systems on AWS or Google Cloud Platform
・Practical development experience using Python
・Experience leading Agile/Scrum development projects
日本語力Japanese level Business
雇用形態Employment type Full-time
勤務エリアLocation Tokyo
勤務時間Working hours Flextime system (core hours: 10:00–15:00)
想定年収Salary 7 to 10 million yen
条件・待遇Condition [Holidays & Leave]
・Holidays: Saturdays, Sundays, and national holidays
・Leave: Annual paid leave (10 days granted after six months of employment); summer, year-end/New Year, and condolence/celebratory leave

[Allowances & Insurance]
・Commuting allowance: Provided in accordance with company policy
・Social insurance: Health insurance, Employees' Pension, workers' compensation insurance, and employment insurance
・Health checkups: Conducted once a year at company expense
・Qualification support system
選考についてProcess Multiple interviews
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