Senior C# .NET Developer

Tek Systems; Singapore; On-site; SGD 120,000 - 150,000; Full time

Job summary

Allegis Group Singapore Pte Ltd is seeking a Senior C# / .NET Engineer to join a high-performing enterprise technology team. This backend-focused role focuses on developing and supporting business-critical trade operations platforms, with delivery ownership and independent work style.

You will work on project delivery and BAU support, collaborating with business stakeholders to deliver scalable and reliable cloud-native solutions.

Qualifications

• 8+ years of software development experience.
• Experience with C# and .NET Core.
• Experience building backend enterprise applications.
• Cloud experience with AWS, Azure, or GCP.
• Experience in containerised environments and modern deployment practices.
• Strong problem-solving and troubleshooting skills.
• Ability to work independently and own delivery.
• Experience engaging with business stakeholders.

Responsibilities

• Develop and enhance applications using C# and .NET Core.
• Build and support cloud-native, containerised applications.
• Work with cloud platforms (AWS, Azure, or GCP).
• Deliver new features and enhancements for trade operations systems.
• Support and maintain existing production applications.
• Partner with business stakeholders to understand requirements and deliver solutions.
• Troubleshoot issues and drive platform improvements.
• Participate in code reviews and engineering best practices.
• Utilise AI-assisted development tools where appropriate.

Skills

C# & .NET

Backend development

Independent delivery

Stakeholder engagement

Troubleshooting

Cloud computing

Tools

AWS EKS

Kubernetes

CI/CD

Job description

• Develop and enhance applications using C# and .NET Core
• Build and support cloud-native, containerised applications
• Work with cloud platforms, preferably AWS (EKS), but Azure or GCP experience is also valued

Overview

We are seeking a Senior C# / .NET Engineer to join a high performing enterprise technology team supporting applications across various financial operations and products. The team is undergoing a capability uplift and is looking for highly capable senior engineers who can operate independently and deliver cloud-native solutions with minimal supervision.

About the Role

This is a backend-focused engineering role responsible for developing and supporting business-critical trade operations platforms. You will work on both project delivery and BAU support, partnering with business stakeholders to deliver scalable and reliable solutions.

What You'll Do

• Develop and enhance applications using C# and .NET Core
• Build and support cloud-native, containerised applications
• Work with cloud platforms, preferably AWS (EKS), but Azure or GCP experience is also valued
• Deliver new features and enhancements for trade operations systems
• Support and maintain existing production applications
• Partner with business stakeholders to understand requirements and deliver solutions
• Troubleshoot issues and drive improvements across the platform
• Participate in code reviews and engineering best practices
• Utilise modern development tooling, including AI-assisted development where appropriate

Must-Have Experience

• 8+ years of software development experience
• C# and .NET Core
• Experience building backend enterprise applications
• Cloud experience (AWS, Azure, or GCP)
• Experience with containerised environments and modern deployment practices
• Strong problem-solving and troubleshooting skills
• Ability to work independently and take ownership of delivery
• Experience engaging with business stakeholders

Nice-to-Have Experience

• AWS EKS or Kubernetes
• UI / Frontend development experience
• Test Driven Development (TDD)
• Messaging technologies
• AI-assisted development toolsFinancial services, trading, or investment management experience

Why Join

• Work on business-critical trade operations platforms
• Exposure to equities, fixed income, corporate actions, and swaps domains
• Join a team investing in long-term engineering capability
• Opportunity to work with cloud and container technologies
• High-autonomy environment with strong ownership and impact

What Success Looks Like

Successful candidates will:

• Quickly understand systems and business processes
• Demonstrate strong ownership and initiative
• Operate with minimal supervision
• Build effective relationships with business and technology stakeholders
• Deliver high-quality solutions while balancing project and support responsibilities

We regret to inform that only shortlisted candidates will be notified

EA registration number : WONG LIN, RACHEL, R25158204

Allegis Group Singapore Pte Ltd, Company Reg No. 200909448N, EA Licence No. 10C4544