Full Stack Engineer

Susquehanna is a global Trading compant that trades our own capital at our own risk. We are experts in systematic trading and trade essentially all listed financial products and asset classes, with a focus on derivatives. We handle millions of trading transactions around the world every day, thanks to our expertise within Trading, Technology, and Quant Research.

We are looking for a highly capable and experienced Senior Full-Stack Developer to join our engineering team. This is a code-intensive role focused on building high-performance tools and internal products for our trading and quantitative research teams. You will work closely with front-office stakeholders, including traders and quants, to design and deliver robust, scalable systems that directly support our trading strategies. This is an exciting opportunity to work at the intersection of technology and finance, contributing to the development of innovative solutions in the fast-paced world of quantitative trading.

About the Role - Design, develop, and maintain full-stack applications that support trading and research workflows. Build scalable, high-performance systems using modern object-oriented languages (e.g., C#, Java). Develop and integrate with distributed systems and event-driven architectures (e.g., Kafka). Contribute to both backend and frontend development; experience with Angular or similar frameworks is beneficial. Optimise multi-threaded applications for performance and reliability. Collaborate directly with traders, quants, and other stakeholders to gather requirements and deliver tailored solutions. Participate in all stages of the software development lifecycle, from design to deployment and support. Ensure the stability, performance, and maintainability of mission-critical systems. Stay current with emerging technologies and contribute to continuous improvement initiatives.

Responsibilities

• Design, develop, and maintain full-stack applications that support trading and research workflows.
• Build scalable, high-performance systems using modern object-oriented languages (e.g., C#, Java).
• Develop and integrate with distributed systems and event-driven architectures (e.g., Kafka).
• Contribute to both backend and frontend development; experience with Angular or similar frameworks is beneficial.
• Optimise multi-threaded applications for performance and reliability.
• Collaborate directly with traders, quants, and other stakeholders to gather requirements and deliver tailored solutions.
• Participate in all stages of the software development lifecycle, from design to deployment and support.
• Ensure the stability, performance, and maintainability of mission-critical systems.
• Stay current with emerging technologies and contribute to continuous improvement initiatives.

Qualifications - 6+ years of professional software development experience with strong object-oriented design skills. Proficiency in at least one modern programming language (e.g., C#, Java). Solid understanding of distributed systems, messaging frameworks (e.g., Kafka), and concurrent programming. Familiarity with container orchestration tools (e.g., Kubernetes, Docker Swarm). Experience working in a client-facing or front-office environment, ideally within financial services. Strong analytical and problem-solving skills. Excellent communication skills and the ability to work effectively with both technical and non-technical stakeholders. Degree in Computer Science, Engineering, Mathematics, or a related field (or equivalent experience).

Required Skills

• 6+ years of professional software development experience with strong object-oriented design skills.
• Proficiency in at least one modern programming language (e.g., C#, Java).
• Solid understanding of distributed systems, messaging frameworks (e.g., Kafka), and concurrent programming.
• Familiarity with container orchestration tools (e.g., Kubernetes, Docker Swarm).
• Experience working in a client-facing or front-office environment, ideally within financial services.
• Strong analytical and problem-solving skills.
• Excellent communication skills and the ability to work effectively with both technical and non-technical stakeholders.
• Degree in Computer Science, Engineering, Mathematics, or a related field (or equivalent experience).

Preferred Skills

• Experience with Angular, WPF, or similar UI frameworks.
• Exposure to Complex Event Processing (CEP) systems.
• Background in high-performance or low-latency systems.
• Familiarity with cloud platforms and scalable architecture.

If youre a recruiting agency and want to partner with us, please reach out to recruiting@sig.com . Any resume or referral submitted in the absence of a signed agreement will not be eligible for an agency fee.

Information :

• Company : Susquehanna International Group
• Position : Full Stack Engineer
• Location : Dublin
• Country : IE