We are seeking a highly motivated Software Engineer to design, build, and maintain innovative trade, quantitative finance, and AI-based educational modules and interactive games used globally for recruiting and learning purposes. This role sits at the intersection of technology, finance, and education, requiring someone who is adaptable, collaborative, and able to thrive in a fast-moving, multi-project environment.

You will work across the full stack, contributing to distributed proprietary systems and modern web applications, with a strong emphasis on React-based front-end development, system reliability, and thoughtful user experiences.

Key Responsibilities:

• Design, develop, test, deploy, support, and maintain full-stack applications supporting educational modules and simulation-based games
• Build intuitive, high-performance web interfaces, with a focus on React and modern web technologies
• Collaborate with cross-functional teams including traders, quants, recruiters, designers, and product stakeholders
• Develop and integrate services within distributed, proprietary systems
• Write clean, well-tested, and maintainable code, including unit, integration, and end-to-end tests
• Manage and prioritize multiple concurrent processes and tasks in a fast-paced environment
• Quickly understand and adapt to new problem domains, tools, and requirements
• Participate in architecture discussions, code reviews, and continuous improvement initiatives
• Communicate clearly and effectively with both technical and non-technical audiences

• Strong experience in full-stack software development
• 3+ years of experience
• Proficiency with React and modern JavaScript/TypeScript ecosystems
• Solid understanding of web technologies(HTML, CSS, RESTful APIs, browser performance)
• Experience working with or building distributed systems is a plus
• Strong testing discipline and experience with automated testing frameworks
• Excellent time management skills and ability to balance competing priorities
• Clear, concise communication skills, both written and verbal
• Ability to think quickly, troubleshoot effectively, and make sound technical decisions under time constraints
• A collaborative team player who enjoys solving complex problems with others
• A self-starter who is motivated, malleable, adaptable, curious, and eager to learn
• Someone comfortable navigating ambiguity and rapidly evolving requirements
• A strong sense of ownership and pride in delivering high-quality software

About Susquehanna

Susquehanna is a global quantitative trading firm powered by scientific rigor, curiosity, and innovation. Our culture is intellectually driven and highly collaborative, bringing together researchers, engineers, and traders to design and deploy impactful strategies in our systematic trading environment. To meet the unique challenges of global markets, Susquehanna applies machine learning and advanced quantitative research to vast datasets in order to uncover actionable insights and build effective strategies. By uniting deep market expertise with cutting-edge technology, we excel in solving complex problems and pushing boundaries together.

If you're 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.