Senior Full stack Developer

3 weeks ago

Dublin, Dublin City, Ireland Susquehanna International Group Full time
Overview

Susquehanna is a global trading firm that uses its own capital to trade across virtually all listed financial products, with a strong focus on derivatives. We combine expertise in trading, technology, and quantitative research to execute millions of transactions daily.

We're seeking a Senior Full-Stack Developer to build high-performance tools and internal systems for our trading and quant research teams. This hands-on role involves close collaboration with front-office stakeholders to deliver scalable, robust solutions that directly impact trading strategies—an exciting opportunity at the intersection of finance and technology.

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.
What We're Looking For
  • 6+ years of software development experience with strong OOP skills.
  • Proficient in modern languages (e.g., C#, Java).
  • Solid grasp of distributed systems, messaging (e.g., Kafka), and concurrency.
  • Familiar with container orchestration (e.g., Kubernetes, Docker Swarm).
  • Experience in client-facing/front-office roles, ideally in financial services.
  • Strong analytical, problem-solving, and communication skills.
  • Degree in Computer Science, Engineering, Mathematics, or related field (or equivalent experience).
Nice to have
  • Experience with UI frameworks (e.g., Angular, WPF).
  • Exposure to Complex Event Processing (CEP).
  • Background in high-performance or low-latency systems.
  • Familiarity with cloud platforms and scalable architectures.

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

Seniority level
  • Mid-Senior level
Employment type
  • Full-time
Job function
  • Engineering and Information Technology

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