Senior C# Core Trading Engineer

Scaleup; Sydney; On-site; AUD 150,000 - 210,000; Full time

Job summary

Scaleup in Sydney, Australia, is seeking a Software Developer - C# (Core Trading Technology) to design, build and maintain C# applications that support Front Office trading activity. You will own projects end-to-end, developing both server-side and UI components and collaborating with traders and researchers to deliver robust, high-performance software.

The role requires 5+ years of C# experience, strong server-side and multi-threaded design, and experience across the full SDLC in an Agile

Qualifications

• Bachelor's degree or higher in Computer Science, Software Engineering or a related technical discipline.
• At least 5 years of professional C# development experience, with strong focus on server-side systems and multi-threaded application design.
• Proven experience in client-side C# development and user interface implementation in a commercial setting.
• Strong experience working across the full software development lifecycle, ideally within an Agile development environment.
• Demonstrated ability to work under pressure and meet deadlines in a fast-paced, trading or similarly time-critical environment.
• Excellent interpersonal and communication skills, with the ability to collaborate effectively with traders, quantitative analysts and other developers.
• High attention to detail, strong problem-solving skills and a commitment to delivering robust, high-quality software.

Responsibilities

• Design, develop and maintain business-critical C# applications supporting Front Office trading activities.
• Take ownership of projects across the full software development lifecycle, from requirements gathering and solution design through to implementation, testing and production release.
• Collaborate with traders, quantitative researchers and technology teams to analyse requirements and translate them into robust technical solutions.
• Build and enhance both server-side components, including multi-threaded services, and user interfaces for trading analysis and monitoring tools.
• Ensure the reliability, scalability and performance of highly available trading systems, including data feeds, trade monitoring and real-time messaging applications.
• Continuously improve the Core Trading Technology platform through refactoring, automation, tooling enhancements and adoption of modern technologies.
• Provide ongoing support, troubleshooting and performance optimisation for existing applications in a time-sensitive trading environment.
• Mentor and guide junior developers, sharing best practices and contributing to a collaborative, high-performing team culture.

Skills

C# development

Server-side design

Multi-threaded apps

UI development

Agile experience

Communication skills

Education

Bachelor's degree in Computer Science or related field

Tools

.NET Core

ReactJS

TypeScript

Linux

Job description

Scaleup in Sydney, Australia, is seeking a Software Developer - C# (Core Trading Technology) to design, build and maintain C# applications that support Front Office trading activity. You will own projects end-to-end, developing both server-side and UI components and collaborating with traders and researchers to deliver robust, high-performance software.

The role requires 5+ years of C# experience, strong server-side and multi-threaded design, and experience across the full SDLC in an Agile