Programmer C# - Bainisys Co., Ltd.
Bainisys Co., Ltd. · Bangkok and its Vicinity
- Location
- Bangkok and its Vicinity
- Salary
- Negotiable
- Job Type
- Full Time
- Work Type
- Onsite
- Education
- Bachelor's Degree or Higher
- Posted
- 21/05/2026
Responsibilities
What You’ll Be Doing (Responsibilities)
- Design & develop scalable backend systems in C#
- Build and maintain secure APIs
- Integrate with enterprise systems (ERP, IoT, Access Control, etc.)
- Optimize database performance
- Collaborate with frontend & DevOps teams
- Participate in system architecture decisions
- Debug, refactor, improve performance continuously
- Contribute ideas — we love builders, not just coders
Qualifications
What We’re Looking For (Qualifications)
- Strong experience in C# / .NET Core / ASP.NET
- Solid understanding of OOP, RESTful API, and Microservices
- Experience with SQL Server (design, optimization, stored procedures)
- Familiar with Entity Framework / LINQ
- Knowledge of JWT, OAuth, Identity, Security Best Practices
- Experience integrating with 3rd-party APIs
- Understanding of cloud environments (Azure / AWS is a plus)
- Git workflow experience
- Problem solver mindset & love clean architecture
Benefits
- Accommodation allowance (in other provinces)
- Telephone bill allowance
- 5-day work week
- Social security
- Employee's uniform
- Performance/results-based bonus
About Bainisys Co., Ltd.
Bainisys is the IT solution provider that helps clients plan, build, support, manage, improve and innovate their key applications in a cost-effective manner. Professional Service: Our experts will assist you to identify the best-fit technology and delivery model for your environment, at the same time, improving time-to-value for implementation. Managed Service: We provide you with technical expertise, service consistency, and flexibility across multiple vendors and technologies. PEOPLE, PROCESS, and TECHNOLOGY are our key success factors in our solution and service deliverables.
117/8 Chaengwattana Rd., Thungsonghong, Laksi, Bangkok 10210
0-2094-0800


