C# Full-Stack Developer - Experienced Hire
SIGDublin, Ireland
Posted February 17, 2026
Full Time
About the Company
Susquehanna is a global quantitative trading firm powered by scientific rigor, curiosity, and innovation.
Job Description
Susquehanna is a global quantitative trading firm looking for a full-stack developer with strong proficiency in C#/.NET to join a fast-paced, iterative development team delivering business-critical systems.
Requirements
- Proficiency in C#/.NET and WPF
- Experience in at least one additional programming language (e.g. Python or JavaScript)
- Solid understanding of software design, debugging, and problem solving
- Experience working with distributed systems and business-critical applications
- Familiarity with modern development tools and practices (e.g. Git-based workflows, CI/CD)
- Experience working across the full software development lifecycle, including production support
- Strong written and verbal communication skills, particularly in collaborative, fast-moving environments