Full-Stack System Engineer
Confirmed on the employer's own hiring board on Oct 19, 2026. First seen by Alion on Nov 28, 2025.
Job Description
At Oak Solutions Co., Ltd., we provide consulting services that begin with analyzing our clients’ needs and extend to translating their business processes into code.
We specialize in Agile development using DDD and provide comprehensive IT-based solutions to address a wide range of challenges faced by businesses.
Originally established as an independent development division within an advanced medical institution, we now primarily serve healthcare clients, but we also provide management consulting and development services across all industries.
In addition to conventional business applications, we tackle a wide range of challenges, including image analysis and bioinformatics. Although we are a small company, we engage in a lot of international business, and our team is internationally diverse.
To ensure we stay up-to-date with cutting-edge technologies, we offer a comprehensive training system, including in-house study sessions and participation in external seminars and academic conferences.
Responsibilities
- Medical IT Systems
- Medical AI Development (including reproductive medicine)
- R&D Support Systems
- Online Medical Consultation Systems
- Call Center Systems
- Nursing Care Support & Care Billing Systems
- Accounting, HR, and General Administration Systems
- Design & Implementation of Bioinformatics Analysis Systems
- Algorithm Development for Genetic Analysis & Genome Data Processing
- Analysis of Medical Data (imaging, text, numerical) and Model Development
- Development and maintenance of various systems.
Our team primarily works with C# and .NET, and also uses Java, JavaScript, and FileMaker in both on-premises and cloud environments.You will have the opportunity to work across a wide range of areas, from front-end and back-end development to infrastructure in cloud environments.Through developing business systems, you will help drive digital transformation (DX) in medical settings, and also be involved in research and development in AI and the bio-sciences.
Comprehensive Training Program
We provide an environment where you can continuously develop your skills through in-house study sessions, external seminars, and participation in academic conferences.
International Work Environment
With extensive international business and a diverse, global team, you will have the opportunity to develop a truly global perspective.
＜採用情報＞
▼定員
2 名
▼応募資格
What we are looking for
No educational background required
- Required Qualifications (must meet at least one of the following)
・ Experience in designing and developing systems using C# , .NET , or Java
・ Experience in designing and developing web systems (front-end/back-end) using JavaScript, jQuery, ASP.Net, Java, PHP, FileMaker, etc.
・ Experience in system operations management or managing a systems department
- Preferred Qualifications
・Experience developing systems using C#, .NET, or Blazor
・Experience building systems on AWS or Azure
・Hands-on experience in network or security operations management
You can work using multiple monitors, ensuring a comfortable and efficient work environment.
※Eligible candidates are foreign nationals who currently reside in Japan.
▼勤務地
大阪府
6th Floor, Osaka Yotsubashi Shinmachi Building, 1-4-24 Shinmachi, Nishi-ku, Osaka
- 5-minute walk from Shinsaibashi Station on the Osaka Metro Midosuji Line
- 1-minute walk from Yotsubashi Station on the Yotsubashi Line
▼勤務時間
Work Schedule: Shift-based
Actual Working Hours: 8 hours per day
Average Working Days: 21-22 days per month
Working Hours: 8:30 AM - 5:30 PM (1-hour break)
▼想定給与
Monthly Salary: ¥400,000 - ¥800,000
※Salary will be determined based on experience and skills.
※Overtime pay is paid separately.
≪Estimated Annual Salary≫
6,000,000 - 10,000,000 JP
▼待遇
Allowances
・Annual salary increase (once per year in April)
・Bonus (twice per year in January and July)
・Commuting allowance (up to ¥25,000 per month)
・Perfect attendance allowance
・Overtime allowance
・Weekend and holiday allowance
Social Insurance
Health Insurance, Welfare Pension Insurance, Employment Insurance, Workers’ Compensation Insurance
▼休日・休暇
Annual Days Off
110 days
Paid Leave
10 days after six months of employment (as per the law)
Leave System
Celebration and Condolence Leave
▼その他要件
Probation & Training Period
・Probation Period: 3 months
・Conditions during probation and training: same as regular employment
※Renewed annually
▼募集拠点
四ツ橋
大阪府大阪市西区新町1丁目4-24 大阪四ツ橋新町ビル6Ｆ
▼選考の流れ
- Application and Selection Process
1. Application Screening
↓
2. Web Interview and Practical Test
↓
3. Job Offer
・After reviewing your application, we will contact you with details such as the interview date.
・Please feel free to discuss the interview schedule or your desired start date with us.
※Those currently employed are welcome to inquire as well.
▼会社概要
Contact Information:
Phone: 06-6655-5008
Email: [email protected]
Company: Oak Solutions Co., Ltd.
Address: 6F Osaka Yotsubashi Shinmachi Building, 1-4-24 Shinmachi, Nishi-ku, Osaka 550-0013, Japan
https://oak-sol.com/en/