Senior C# .NET Developer

GOLDTECH RESOURCES PTE LTD; Singapore; On-site; SGD 70,000 - 90,000; Full time

Job summary

A leading technology company in Singapore is seeking a highly skilled Senior C# .NET Developer to join their development team in the gaming industry. The ideal candidate will maintain and improve in-house applications, resolve complex issues, and ensure the stability of transactional systems. Applicants should have at least 5 years of experience in C#.NET and be proactive problem-solvers. Competitive salary and dynamic work environment offered.

Qualifications

• Minimum 5 years of hands-on development experience.
• Strong problem-solving abilities with a proactive mindset.
• Must be eligible to apply for CSEL.

Responsibilities

• Develop and maintain C# .NET applications.
• Troubleshoot and resolve incidents on existing applications.
• Design scalable solutions for transactional data.

Skills

C#.NET

Microsoft SQL Server

Java

DevOps tools (Git)

Microservices architecture

Performance tuning

Job description

About the Role

We are looking for a highly skilled and proactive Senior C# .NET Developer to join our growing development team in the gaming industry. The ideal candidate will play a key role in maintaining and improving existing in-house applications, resolving complex technical issues and supporting large-scale transactional systems.

This role is ideal for someone who enjoys problem-solving, takes initiative and thrives in a fast-paced environment. You’ll be involved in both development and Level 3 support ensuring stable performance and continuous improvement of critical systems.

Key Responsibilities

• Develop and maintain C# .NET 3.5+ applications, including WinForms, WPF and ASP.NET.
• Troubleshoot and resolve incidents on existing applications as part of L3 support.
• Perform root cause analysis and implement effective technical resolutions.
• Design scalable solutions to process large volumes of transactional data.
• Review code and uphold development best practices for security, scalability and performance.
• Participate in release planning and cross-team collaboration.

Requirements

• Minimum 5 years of hands-on development experience.
• Strong proficiency in C#.NET, Microsoft SQL Server and Java.
• Proven experience in maintaining and enhancing mid to large-scale in-house applications.
• Skilled in application troubleshooting, incident resolution and root cause analysis.
• Experience with DevOps tools, particularly Git.
• Exposure to microservices architecture and Kafka is a plus.
• Knowledge in performance tuning and resolving performance issues is beneficial.
• Strong problem-solving abilities with a proactive and solution-oriented mindset.
• Able to communicate clearly in English both written and verbal.
• Comfortable working in the gaming industry.
• Must be eligible to apply for CSEL.
• Adaptable to a fast-paced and dynamic work environment.

Please send your detailed resume in MS Word format to [e-mail] with

• Education Level
• Working experiences
• Each employment background
• Reason for leaving each employment
• Last drawn salary
• Expected salary
• Date of availability