Ridge-i, a publicly listed AI development company, is looking to hire a senior systems engineer
■Resume and work history written in Japanese are required (There is a possibility that your application will not be processed if you only have English documents).
■We are a recruitment agency conducting this recruitment on behalf of the companies seeking employees.
■ Native Japanese level required.
English (conversational level or above, no hesitation)
■Required:
Experience in system design, development and testing in Python, C++ or C# (approximately 3 years or more)

Qualifications
Development experience in AI, machine learning, and deep learning
Specialized knowledge in LLM, generative AI, image processing, mathematical optimization, and reinforcement learning
Practical experience in project and team management
Experience leading web application and cloud development
Application development experience using generative AI (LLM) libraries such as LangChain and LangGraph
Experience designing and building system architecture for cloud environments
Practical experience in vendor selection, ordering, contract management, and quality control

【Full-time】AI Algorithm Development & Project Manager｜Annual Salary: ¥6M–¥10M｜SaaS Engineer Job｜Cloud Development｜Tokyo-based
Drive the future of technology through cutting-edge AI projects.

We are seeking experienced professionals to lead AI algorithm development and project management in the fast-growing AI domain. If you’re ready to make a real business and social impact through technology, this is your chance to take center stage in transformative AI projects.

■ Company Overview
Founded in 2016, with 44 employees as of July 2023, the company is listed on the Tokyo Stock Exchange Growth Market. It has achieved sales of ¥790.38 million with a capital of ¥100 million, balancing startup agility with financial stability.

Our main business areas include:
AI and deep learning consulting and development
In-house and joint product development (licensing, maintenance, co-ventures)
AI analytics using satellite data

With a focus on deep learning, machine learning, and statistical analysis, we apply advanced technology to real-world problems, creating solutions that generate meaningful social impact.

■ Job Description｜AI Algorithm Development & Project Management
As a core member of our engineering team, you will lead large-scale AI projects and develop impactful AI systems alongside data scientists and engineers.

Responsibilities:
Research, design, implement, and evaluate AI algorithms using statistics and machine learning
Collaborate on system planning, design, development, and deployment with the team
Manage project progress to ensure business value and successful outcomes

Tech Stack:
Language: Python
Cloud: AWS / GCP / Azure
Infrastructure: Docker, Terraform, AWS CDK
Version Control: GitHub
Docs & Communication: Google Drive, Slack

■ Who We're Looking For
Experienced in AI development and aiming to step into a leadership or PM role
Passionate about learning and applying new technologies
Motivated to solve societal challenges through tech

■ Work Style & Flexibility
Professional discretionary labor system (8 hours/day assumed working time)
During probation: Flexible hours with core time 10:30–16:30
No transfers; office located in Chiyoda-ku, Tokyo
Remote work negotiable depending on project

■ Salary & Compensation
Annual Salary: ¥6,000,000 – ¥10,000,000
Monthly Salary: ¥500,000 – ¥1,000,000 (includes 45 hours of fixed overtime pay)
Bonus: Twice annually (January & July)
Salary Review: Once annually (January)
Commuting Allowance: Up to ¥40,000/month

■ Benefits & Welfare
Career support (e.g., patent incentives, certification subsidies)
Learning opportunities (in-house study sessions, partner researchers)
Books, equipment, and online learning tools (e.g., Udemy) covered by company
Health support: external consultations, free acupuncture treatment
Free snacks, nutritional supplements, beverages
Insurance: Health, pension, employment, workers’ compensation
Enrolled in Kanto IT Software Health Insurance (access to resort facilities, etc.)

■ Holidays & Time Off
Full 5-day work week (Mon–Fri)
Public holidays off
Year-end & New Year holidays (Dec 28–Jan 4)
Refresh leave (5 days after 1 year of service)
Annual paid leave (starts at 10 days, increases with tenure)
Special paid leave (3 days prior to 6-month mark)

■ Why This Role Stands Out
Highly sought-after SaaS Engineer job in Tokyo
Experience Cloud Development, AI, Machine Learning, and DX projects
Lead meaningful tech initiatives with societal impact
Hybrid of startup energy and public company stability

■ How to Apply
If you're looking to make a meaningful impact with your AI engineering expertise, and are ready to step into a flexible, high-impact role—apply now.

We look forward to meeting you!

〒150-0043　渋谷区道玄坂2-23-14　道玄坂225ビル8Ｆ (地図)
TEL: (+81) 03-6455-0360    FAX: (+81)03-6455-0361