Senior Software Engineer

Astek; Singapore; On-site; SGD 120,000 - 180,000; Full time

Job summary

Astek is seeking a skilled C# Developer to support Trading and Trade Operations applications. You will work with C#, cloud-native tech, and frontend ReactJS.

You will deploy in AWS, manage EKS, and apply agentic coding tools like Claude Code or GitHub Copilot. Strong collaboration and Agile mindset required. The role demands 8+ years of development experience and a degree in CS/IT; UI/React expertise is valued.

Qualifications

• Degree in Computer Science or Information Technology or related field.
• 8+ years of development experience.
• Experience with Claude Code, GitHub Copilot or similar tools.
• Hands-on C#, AWS, EKS and containerized deployments.
• Strong collaboration and a proactive learning mindset.
• Knowledge of UI and React JS.

Responsibilities

• Develop, enhance, and maintain applications supporting Trading and Trade Operations.
• Design backend components using C#.
• Build and support applications deployed within AWS environments.
• Work with Amazon EKS and containerised applications for scalable deployments.
• Develop frontend/UI components using ReactJS.
• Troubleshoot issues and support problem resolution.
• Collaborate with business and technical teams on enhancements.
• Participate in Agile development activities and releases.
• Follow best practices to ensure code quality and maintainability.

Skills

C#

ReactJS

AWS

EKS

Containerization

Agile

Troubleshooting

Problem solving

Education

Bachelor's degree in Computer Science / IT

Tools

Claude Code

GitHub Copilot

Job description

ASTEK has been providing IT and Engineering solutions for some of the world’s largest industrial and services groups for more than 35 years with 10,000 passionate experts in 22 countries throughout Europe, APAC, Middle East and the Americas

Role Overview

We are looking for a C# Developer to support Trading and Trade Operations applications. The role requires strong hands-on experience in C#, cloud-native technologies, and frontend development using ReactJS. You should also have hands on experience in Claude Code, GitHub Copilot or other agentic coding tools in your development work.

Key Responsibilities

• Develop, enhance, and maintain applications supporting Trading and Trade Operations.
• Design and develop backend application components using C#.
• Build and support applications deployed within AWS environments.
• Work with Amazon EKS and containerised applications to support scalable and reliable deployments.
• Develop and maintain frontend/UI components using ReactJS.
• Troubleshoot application issues and support technical problem resolution.
• Collaborate with business and technical teams to deliver application enhancements.
• Participate in Agile development activities, including development, testing, and releases.
• Follow development best practices to ensure application quality and maintainability.

Requirements:

• Possess a degree in Computer Science/Information Technology or related fields.
• Minimum 8 years of experience in development work.
• Claude Code, GitHub Copilot or other agentic coding tools
• Proficient with hands-on experience in C#, AWS, EKS, and Containerized.
• Possess positive learning and collaborative mindset.
• Strong analytical, problem-solving and troubleshooting skills.
• Knowledge and experience in UI and React JS.