• Full-time

Publication date： 2026.11.08

Full-Stack Engineer【SecureCycle|Sapporo/Sendai/Fukuoka|In-house Product】

  • System Engineers / Infrastructure Engineers / Web Engineers / Game Developers
  • Hokkaido
  • Salary： JPY 6,000,000 - 10,800,000
フルスタックエンジニア【セキュアサイクル|札幌/仙台/福岡|自社製品】
職種Position System Engineers / Infrastructure Engineers / Web Engineers / Game Developers
会社概要Company profile The company founded in 2009. With the mission of "reviving Japan as a digital powerhouse," they promote the use of generative AI in companies and provide digital transformation support services.

With global development capabilities and business creativity as their strengths, they offer more than 20 services in four business divisions. They solve the problems of major companies and tech companies with AI and data.

In recent years, the number of major companies adopting our services has increased, and their sales have grown by 140% every year, and their organization has rapidly grown to about double in size in two years.

They are strengthening their recruitment efforts with an eye on a large-scale IPO on the Tokyo Stock Exchange Prime or NASDAQ with a market capitalization of 100 billion yen within the next few years.
仕事内容Job description We are recruiting engineers who can take ownership from design through implementation during the launch phase of a security SaaS that visualizes and controls companies' use of generative AI.
Centered on Go / Python backend development, you will help build the core of the product, including the frontend and AWS infrastructure.
We do not require dedicated management duties. However, for your area of responsibility, you will own everything from organizing requirements to deciding how the work proceeds.
This role suits those who simply want to pursue "good design" and "good code."
It is an environment where you can build while running implementation and verification in the fast-moving fields of AI and security.
* Backend design and implementation (Go / Python)
* Frontend design and implementation (TypeScript / React / Next.js)
* API design, DB design, architecture design and improvement
* Design, construction, and operation of cloud infrastructure using AWS
* Security-conscious technical research, and verification of generative AI trends and usage methods
* Quality improvement through code review, and technical support for team members
* Organizing requirements for your area of responsibility and drafting implementation plans
応募資格Requirement * Experience developing web applications using Go or Python (3+ years)
* Experience developing web applications using TypeScript and React (3+ years)
* Experience with development, deployment, and operation in an AWS environment
* Experience with team source control and code review using Git/GitHub
* Experience with development, deployment, and operation in a Linux environment
* Practical experience in RDB design and tuning
* Experience in member management
* Business-level Japanese proficiency (N1)

[Preferred requirements]
* Experience in design and DB design related to GraphQL, gRPC, or JSON-RPC
* Experience developing and operating AI / data utilization services
* Basic knowledge of security (threat detection, vulnerabilities, attack methods, etc.) or learning experience in security
* Experience in design, construction, and operation in an AWS environment (Lambda, ECS, CloudWatch, etc.)
* Able to respond calmly to complex specifications and highly uncertain areas and flexibly find solutions
* Interested in and motivated to keep learning in new technology areas such as security and AI
* Able to collaborate with team members and produce results even in a remote environment
* Able to approach the product as one's own and work with a sense of ownership
* Interested in improving not only technology but also processes and culture within a small team
日本語力Japanese level Business
雇用形態Employment type Full-time
勤務エリアLocation Hokkaido
勤務時間Working hours 10:00-19:00
想定年収Salary JPY 6,000,000 - 10,800,000
条件・待遇Condition ・Full five-day week, two days off (Saturdays, Sundays, and public holidays)
・Summer holiday
・New Year holiday
・Paid vacation (10 days granted on the date of joining)
・Condolence and celebration leave
・Special leave
・Maternity leave
・Childcare leave

[Salary]
Expected annual salary: 6,000,000 yen to 10,800,000 yen
*The above is a guideline. Current annual salary, abilities, and experience will be taken into consideration.
・Fixed overtime allowance: Included in the above for up to 40 hours of overtime per month.
(Example) Monthly salary of 500,000 yen: 117,300 yen/month
・Overtime allowance for overtime hours exceeding the above will be paid separately.
Employment type: Regular employee
[Working hours]
10:00–19:00 (60-minute break)
[Social insurance]
Health insurance, employees' pension insurance, employment insurance, and workers' accident compensation insurance all provided
[Smoking measures]
Smoking prohibited throughout all indoor areas
選考についてProcess 1) Document screening
2) 1st interview
3) Coding test
4) Final interview
5) Job offer
※The above is the standard selection process. Depending on the candidate's experience and the status of their application, the selection content or number of interviews may change.
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