• Full-time

Publication date: 2026.10.08

[Requirements]... Wait — this is a job title field. AI Tech Lead / Development Division [Take Up AI as a Weapon and Take On Modern Development]

  • System Engineers / Infrastructure Engineers / Web Engineers / Game Developers
  • Tokyo
  • Salary: JPY 6,000,000 - 12,000,000
AIテックリード/開発本部【AIという武器を手にとりモダンな開発へ挑戦】
職種Position System Engineers / Infrastructure Engineers / Web Engineers / Game Developers
会社概要Company profile They are a company that specializes in quality assurance and testing, which are essential for software development. In order to deliver safe and secure products to a world filled with software products that cannot exist without them, they have developed a unique business model that provides cross-sectional quality assurance services, from consulting in the upstream process of development projects, development work that focuses on quality, and testing work just before product release.

They are involved in a wide range of products and services, including enterprise fields such as finance and distribution, and entertainment fields such as web and games, and participate in projects as a primary contractor through direct transactions with user companies.

In a blue ocean market with no competitors, they are a company that has continued to grow sales by more than 150% annually, creating a virtuous cycle in which employees are rewarded with rewarding work and results.
仕事内容Job description Background of the recruitment — The vision of the Development Division, Development Headquarters
SHIFT has now surpassed 1,200億円 in revenue and is entering a phase of further growth.
Accordingly, in addition to our traditional strengths in quality assurance and project driving power, we are building a development structure that can also lead design and technical decision-making.

In recent years, the following challenges have become apparent at development sites:

・Requirements definition, design, and technical judgment have become dependent on specific individuals, and the quality of decisions depends on individual experience
・While projects are becoming larger and more complex, it is becoming difficult to design and exercise technical control with an overall perspective
・PMs and engineers are preoccupied with coordination and implementation, and cannot devote enough time to technical decision-making and design

At SHIFT, we believe that to address these challenges, it is important that "people who have technical judgment criteria and can indicate the direction of design and implementation lead development."

As part of this, we are promoting the visualization and structuring of processes from requirements definition to progress management, through the use of AI and the development of development standards. Through this, we are working to build a structure in which tech leads can make decisions quickly and the entire team can carry out development with high reproducibility.

In the position we are recruiting for this time, you will play a role in supporting the entire project from a technical standpoint and improving the quality of design and implementation within this next-generation development style.
Rather than deep familiarity with specific technology trends, we would like you to make use of the experience you have cultivated in requirements definition, design, technology selection, and reviews, and to establish the technical judgment criteria of teams and projects together with us.

SHIFT does not treat AI and new technologies as a "goal," but as a means to enhance judgment, productivity, and quality.
Why not build on your development and design experience so far and lead the development of the next era from a technical standpoint?

<Job details>
In this position, you will take on the role of supporting development as a whole as a tech lead who is at the core of design and technical judgment, not just handling some functions or implementation of a project.

Specifically, we anticipate the following duties:
・Organizing and structuring from a technical perspective in the requirements definition and basic design phases
・Architecture design and technology selection with a view to the entire system
・Design reviews and technical support to convey implementation policies and design intentions to the team
・Formulation of development standards, design rules, and commonization policies, and their application to projects
・Technical decision-making and problem solving in cooperation with PMs and other tech leads
・Promotion of development process improvement and productivity enhancement, including the use of AI and automation

In the development phase, you will be involved in projects premised on AI-driven development, and while utilizing AI agents and development standards, you will lead development in a position that indicates not only "how to build" but also "why we build it that way."
We expect you not merely to lead implementation, but to support and solidify the decision-making of teams and projects with technical judgment criteria.

*Reference articles
・Building an AI-driven development process with Devin
┗ Part 1 / Part 2
・The front lines of using Devin
*Tech lead presentation: Event report
Breaking through the "implementation wall" with AI. The form of next-generation engineering brought about by SHIFT-style AI-driven development

<Nearest stations>
<Head office>
7-minute walk from "Kamiyacho Station" on the Tokyo Metro Hibiya Line
6-minute walk from "Roppongi-itchome Station" on the Tokyo Metro Namboku Line
<Shinjuku Daiichi Office>
8-minute walk from "Shinjuku Station" on the JR, Odakyu Line, and Keio Line
7-minute walk from "Tochomae Station" on the Toei Oedo Line
*We are also recruiting for locations other than the Tokyo site, so please feel free to consult us.
応募資格Requirement ・Experience in upstream processes such as requirements definition and basic design in Web application or core system development
・Experience discussing requirements and specifications with customers in upstream processes and reaching agreement
・Experience as a leader of a team of 3 or more people, reviewing and consolidating deliverables
*No specific development language is required.
At SHIFT, by utilizing AI (such as Devin) and a standardized development process (SHIFT DQS), you can step up to a modern development style.
Even if you are unsure about acquiring modern technologies, you can catch up in a practical way by working together with AI.

・Experience in building core systems
・Someone who can empathize with SHIFT's business and vision
・Someone who can approach work with ambition, motivation, and a sense of responsibility
・Someone who can accept things with an open mind
・Someone who has an attitude of enjoying their work
・Someone who can face new technologies in the AI era of great change
Working hours
9:00-18:15 (breaks 12:00-13:00, 15:00-15:15 / 8 actual working hours)
*Discretionary labor system for professional work (deemed working hours per day) 8 hours
Break times
12:00-13:00, 15:00-15:15
Overtime work
Yes (monthly average of 7.2 hours *actual results for the fiscal year ending August 2025)
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 9:00-18:00
想定年収Salary JPY 6,000,000 - 12,000,000
条件・待遇Condition Employment type: Full-time employee
Full-time employee
Wages
Estimated annual salary: approx. 600万円~1,200万円
1. Base salary: 350,000円~755,100円
2. Fixed overtime allowance: 95,000円~189,900円
3. Defined contribution allowance: 55,000円
*Determined through discussion, based on experience, performance, and contribution
Contract period
No fixed term
Place of work
106-0041 32F, Mori JP Tower, Azabudai Hills, 1-3-1 Azabudai, Minato-ku, Tokyo
151-0053 Shinjuku Bunka Quint Building, 3-chome 22-7 Yoyogi, Shibuya-ku, Tokyo
Yes, 3 months
Full two-day weekend system (2 days off per week)
Salary revision
Twice a year (2 times)
Insurance
Fully provided
Measures to prevent secondhand smoke
No smoking indoors (designated smoking room available)
Retirement age
70 years old (limited to full-time employees, and contract/part-time employees converted to indefinite-term employment)
Selection process
Document screening → (Casual interview →) → 1st interview → Final selection → Job offer
*An aptitude test will be conducted before the final selection
*We also welcome starting with a casual interview.
*The selection flow and number of interviews may change.
*Interview dates and start dates are negotiable. Please feel free to contact us.
選考についてProcess Multiple interviews
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