Senior C# .NET Developer

Allegis Group Singapore Pte Ltd; Singapore; On-site; SGD 180,000 - 240,000; Full time

Job summary

Allegis Group Singapore Pte Ltd is seeking a Senior C#/.NET Engineer to join a high-performing enterprise technology team. You will develop and support backend trade operations platforms, delivering cloud-native solutions with minimal supervision.

This role emphasizes independent delivery and collaboration with business stakeholders. You will work on projects and BAU support, building scalable applications and leveraging containerised deployments across AWS, Azure, or GCP environments.

Qualifications

• 8+ years of software development experience
• Strong hands-on experience with 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

Responsibilities

• 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

Skills

C#

NET Core

Backend development

Cloud experience

AWS

Azure

GCP

Kubernetes

Independent delivery

Stakeholder engagement

Tools

AWS

Azure

GCP

Kubernetes

Job description

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
• Strong hands-on experience with 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 tools
• Financial 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

• 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