Top Tech Jobs & Startup Jobs in NYC, NY

Work alongside full-time ML researchers on end-to-end projects applying state-of-the-art models to large, nonstationary market datasets. Tasks include data exploration, model development, hyperparameter tuning, debugging training, and analyzing model predictions using large-scale compute and GPU resources. Internship-focused, with heavy emphasis on practical ML implementation and iteration.

Design and build internal systems and tools across the firm, from trading desks to accounting. Implement foundational infrastructure (monitoring, risk models), work with OCaml and Python, contribute to and leverage open source, and solve critical, production-facing engineering problems.

The Commercial Contracts Attorney will review and negotiate contracts, support procurement processes, and advise teams on legal matters related to commercial contracts.

Protect firm employees, data, and infrastructure by developing and using monitoring tools, performing incident response and remediation, conducting unstructured investigations, and promoting cybersecurity best practices across the organization.

Build and grow a Formal Methods team to develop practical tooling that verifies and validates agent-generated code. Combine deep formal-methods research (proof assistants, theorem provers, static analysis, refinement types, program logics) with strong software engineering to create tools used across the firm.

Mentored software engineering internship building real production-quality systems. Work primarily uses OCaml (some teams use Python). Interns collaborate with full-time engineers on projects ranging from high-performance trading systems to programming language design, focusing on learning, maintainable code, and practical software development.

Work alongside quantitative researchers to identify market signals, analyze large financial datasets, design and test models, and develop trading strategies. Participate in classes, seminars, and collaborate on end-to-end strategy production, including experiment design, feature engineering, and model validation.

10-12 week internship working alongside salespeople and sales-traders to engage institutional clients, learn trading fundamentals across asset classes, complete real-world projects, attend classes and speaker events, and develop analytical, client-relations, and communication skills.

Support the Fundamental Research team on live projects across asset classes by evaluating trade ideas, performing due diligence, conducting valuation analysis for equity offerings, and documenting findings. Integrate traditional investment analysis with quantitative strategies and coordinate with internal stakeholders to gather information and feedback.

Interns pair with full-time mentors to maintain and improve a multi-vendor network supporting trading and internet traffic. Tasks include debugging routing protocols, provisioning feeds and third-party connections, site expansions and colocation work, automating support tasks, improving monitoring, performing root-cause analysis, and building production-ready solutions. Work involves command-line *nix use and programming to automate and instrument network operations.