C# Developer – All Seniority Levels – Tier 1 Buyside Firm

Ashford Benjamin Limited; Sydney; On-site; AUD 110,000 - 180,000; Full time

Job summary

Ashford Benjamin Limited in Sydney is seeking C# Software Engineers across all seniority levels to join its Tier 1 buyside team. You will contribute to backend services, real-time systems and trading-oriented applications supporting the firm's trading business.

No prior finance experience required; you’ll work alongside traders, researchers and engineers, owning features end-to-end and helping improve performance, reliability and scalability through solid engineering practices.

Qualifications

• 5+ years of C# development experience
• Understanding of object-oriented design and debugging
• Exposure to backend systems; multithreading or performance optimization is advantageous
• Strong problem-solving and communication skills
• Degree in computer science, engineering or related field
• Interest in learning trading technology

Responsibilities

• Develop and enhance C#/.NET applications across backend services and user-facing tools
• Own features throughout delivery lifecycle from requirements to testing and deployment
• Improve system performance, reliability and scalability
• Investigate technical issues and implement sustainable solutions
• Collaborate with trading, research and engineering teams
• Strengthen development practices through automation, testing and tooling enhancements

Skills

C#/.NET

Multithreading

OOP design

Problem solving

Communication

Education

Bachelor's degree in CS/Engineering

Job description

C# Developer – All Seniority Levels – Tier 1 Buyside Firm

My client, a tier-1 buyside firm, is hiring multiple C# Software Engineers across all seniority levels for its Sydney team. Engineers from tech firms are welcome—no previous finance or trading experience is required. You’ll work alongside traders, researchers and engineers to develop the services, real-time systems and applications supporting the firm’s trading business.

About the role

This opportunity brings together backend engineering and trading-facing application development. Depending on your experience and interests, you’ll contribute to platforms covering market data, trading analysis, transaction monitoring and real-time communication.

Key responsibilities

• Develop and enhance C#/.NET applications, from backend services to user-facing tools.
• Own features throughout the delivery lifecycle, from understanding requirements to testing and production deployment.
• Improve system performance, reliability and scalability.
• Investigate technical issues and implement sustainable solutions.
• Collaborate directly with trading, research and engineering teams.
• Strengthen development practices through automation, testing and tooling improvements.

What we’re looking for

• 5+ years of C# development experience with sound programming fundamentals.
• An understanding of object-oriented design, debugging and maintainable software.
• Familiarity with backend systems; exposure to multithreading or performance optimisation is advantageous.
• Strong problem-solving and communication skills.
• A degree in computer science, engineering or a related technical field.
• An interest in learning about trading technology—not prior financial industry experience.