Top Tech Jobs & Startup Jobs in NYC, NY

Participate in an 11-week Operations internship supporting clearing, settlements, corporate actions, collateral management, and shared services. Analyze business needs using data, develop and implement strategic process improvements, manage team projects end-to-end, collaborate across global teams, and contribute to a cross-functional capstone initiative focused on advancing Operations.

Participate in a structured fixed income and macro trading rotation. Develop expertise in financial markets, apply statistical techniques to trading, adapt investment approaches, and use advanced trading technology. Collaborate with traders, quantitative researchers, and technologists while identifying opportunities and managing risk. The internship also includes networking with senior team members and peers.

Partner with quantitative researchers to design, build, optimize, and scale deep learning models and tooling for research and production. Work includes model architecture, distributed training, inference optimization, ML libraries, and high-performance computing to improve training speed, scalability, reliability, and cost-efficiency in systematic investing workflows.

As a Quantitative Developer, you'll innovate and enhance quantitative methods, develop custom tools, maintain data pipelines, and collaborate with researchers for advancing investment strategies.

The Recruiting Coordinator collaborates with recruiters to manage the hiring process, schedule interviews, and maintain candidate pipelines, requiring strong communication and organizational skills.

Develop and deploy advanced machine learning models across asset classes, focusing on deep learning, sequence/time-series modeling, NLP/LLMs, pre-training, fine-tuning, and reinforcement learning. Design and optimize models for performance, scalability, and robustness to model price formation, market behavior, and risk while collaborating with researchers, engineers, and traders.

Quantitative Research Engineers at Citadel's GQS develop software solutions, enhance trading systems, and collaborate with researchers to apply quantitative techniques.

Develop high-performance research platforms and tools that bring trading strategies to life. Work in small teams to design, build, and deploy resilient systems using distributed computing, NLP, and machine learning to solve large-data problems in finance.

Human Resources Interns support global HR projects and processes, identify process-improvement opportunities, analyze HR data, and develop solutions to talent challenges. They collaborate with stakeholders across People Operations, Benefits, Learning and Development, and People Analytics. The role requires strong communication, organization, analytical and problem-solving skills, along with proficiency in Excel, PowerPoint, and familiarity with AI tools such as Gemini and Claude.

Global Quantitative Researchers at Citadel leverage advanced statistical and quantitative techniques to drive investment strategies and optimize portfolios.