Top Tech Jobs & Startup Jobs

Deploy and document security controls at scale, run vulnerability management, support incident response, collaborate with IT/engineering to build technical and procedural solutions, and maintain operational playbooks for Windows-focused environments.

Lead and scale global physical security operations by assessing and mitigating risks, developing global operating standards, coordinating incident response and post-incident reviews, managing relations with law enforcement and emergency services, and overseeing vendor/guard force expectations and tabletop exercises across regions.

Design, deploy, and operate network security infrastructure including firewalls, segmentation, and DMZ. Collaborate with Cybersecurity and Network teams to detect/mitigate threats, evaluate new platforms, improve observability through scripting, and support business workflows securely.

Source, evaluate, and procure external datasets to improve trading. Advise traders and researchers on useful data, vet vendors, negotiate contracts, and coordinate Legal, Compliance, Finance, and Data Engineering to bring datasets into production.

Hands-on internship training to support, configure, and operate desktop, network, and application systems. Tasks include responding to support requests, building and configuring Windows and Linux devices, supporting Windows domain infrastructure, monitoring systems, troubleshooting desktop/server/network issues, automating/admin tasks with scripting (e.g., PowerShell), and maintaining technical documentation.

Maintain and build the firm's Linux infrastructure across on-prem and cloud: packaging (Nix/RPM), kernels/drivers, storage, networking, automation, incident diagnosis, upgrades, and platform tooling. Act as Linux expert, teach others, automate operational work, and run production systems reliably.

The Machine Learning Educator will develop and teach ML programs, mentor teachers, and write code to enhance learning at Jane Street.

The Unified Communications Engineer will manage global voice and video infrastructure, configure Cisco UC products, and integrate cloud conferencing technologies while troubleshooting issues and ensuring system stability.

Work alongside full-time IT engineers to design, deploy, secure, and maintain Windows automation and infrastructure. Develop and improve tools, CI/CD pipelines, configuration management, and monitoring solutions. Write code in OCaml, F#/C#, and PowerShell, implement editor and workflow improvements, and collaborate on mission-critical projects under mentor guidance.

Internship role focused on investigating alerts, incident response, and threat hunting across diverse log sources. Build tools and automation to improve detection and response, learn secure engineering practices, and educate the firm on security trade-offs and best practices while paired with full-time mentors.