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Updated 2025-07-09
Activated 2025-07-09

Software Engineer/Lead Engineer (Corporate Information Platform)
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This posting is managed by: Talent Fit Japan株式会社
Company Name Company is not publicly visible
Job Type IT (PC, Web, Unix) - Business Application SE
IT (PC, Web, Unix) - Web Application SE
IT (PC, Web, Unix) - Mobile Application Engineer
Location Asia Japan Tokyo Minato

Job Description [Job Description]
You will be responsible for the overall development and operation of web, batch processing, and mobile apps for corporate information platforms and data utilization services. We expect you to work in your areas of expertise in front-end and back-end, and in the future, you will be active as a full-stack engineer. Furthermore, depending on your aspirations and experience, you can also take on roles such as architect, technology selection, planning promotion, and team management.

■ Specific work content
[Front-end]

-Planning and designing new features

-Web front-end development (Vue.js, TypeScript, etc.)

-Mobile app development (Flutter)

-Improving development experience through development infrastructure and refactoring

-Designing and implementing common product components

[Back-end]

-API design and development using Ruby on Rails and Python

-Database design and development (MySQL/Amazon Aurora, DynamoDB, Elasticsearch, etc.)

-Cloud architecture design and construction using AWS

-Batch processing and data infrastructure development

-Implementing and improving services using machine learning/natural language processing technology

[Attractiveness of the position/career advancement]

-Participate in large-scale development in the cutting-edge AI x SaaS field, such as LLM and recommendation engines

-"Customer-driven" team development in collaboration with PdM, designers, BizDev, and Research

-Products with social impact used by large corporate customers

-You can grow in your own way in a flat organization, flexible working style, and environment with a lot of discretion
Company Info Our group is a rapidly growing AI venture that supports corporate transformation through services that utilize cutting-edge generative AI and large-scale language models, with the mission of "reinventing the mechanism of value creation and advancing humanity." Our main services include search and visualization SaaS that can effectively utilize internal and external information, information structuring systems as corporate assets, and we also focus on research and development of our own LLM specialized for Japanese and business scenes.

We have already introduced our services to over 250 companies, mainly major manufacturers and R&D departments listed in the Nikkei 225, and in the future we are looking to expand beyond manufacturing to the entire enterprise field and the global market. In 2024, we will release a large-scale Japanese language model with over 100 billion parameters, and we boast a top-class presence in the industry in terms of R&D innovation and social implementation capabilities.

There are over 100 members in the company, and engineers, researchers, designers, and consultants with diverse expertise work together. We have raised a total of over 8.8 billion yen in Series D and are expanding our organizational phase. Many of our members have experience at the forefront of the AI/NLP industry and BtoB SaaS products, and we have established a culture of learning from each other about new technologies and knowledge on a daily basis.
Working Hours -Flex time system (core time 10:00-14:00)

-8 hours per day x number of business days/month
Job
Requirements		 ■Requirements

Over 5 years of IT development and operation experience (non-practical development is also negotiable depending on the content)

Practical experience in any of the following
[Front-end]
- Vue.js, React, Angular, Svelte, etc. web frameworks + TypeScript
[Back-end]
- Ruby on Rails, Django, Laravel, etc. web frameworks, batch processing development experience

■Preferred conditions

- Team development and promotion experience as a tech lead/lead engineer

- Development experience in the field of natural language processing and machine learning

- Communication and output activities in technical communities

- Product improvement experience in collaboration with PdM and designers

- Mobile app (Flutter) development experience

■Desired personality

- Intrinsic technological exploration and independent problem-solving ability

- Interest in business and a desire to work with a variety of occupations to improve products

- Motivation and a spirit of challenge
Japanese Level Daily Conversation Level
Salary JPY - Japanese Yen JPY 6000K - JPY 11000K   
Other Salary
Description		 -Salary increase twice a year (May and November)

-Remote work preparation lump sum: 50,000 yen (at first pay)

-Social insurance provided

-Commuting expenses (actual expenses paid for remote work)

-PC provided/Company pays for health checkups and influenza vaccinations

-Free drinks service in the office, etc.

[Education/skill development]

-Onboarding upon joining the company (5 days)

-Monthly "research day" system (focus on skills and self-improvement)
Holidays -123 days off per year (2 days off per week: Saturdays, Sundays, and holidays)

-Year-end and New Year's holidays

-Paid leave (granted upon joining the company)

-Maternity and childcare leave
Job Contract
Period		 Employment type: Full-time employee
Contract period: 3-month trial period
*No difference in treatment during the trial period
Nearest Station 6 minutes walk from Tokyo Metro "Aoyama-itchome" station
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