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Senior Security Engineer at WorldQuant · Katori

WorldQuant develops and deploys systematic financial strategies across a broad range of asset classes and global markets. We seek to produce high-quality predictive signals (alphas) through our proprietary research platform to employ financial strategies focused on market inefficiencies. Our teams work collaboratively to drive the production of alphas and financial strategies – the foundation of a balanced, global investment platform.

WorldQuant is built on a culture that pairs academic sensibility with accountability for results. Employees are encouraged to think openly about problems, balancing intellectualism and practicality. Excellent ideas come from anyone, anywhere. Employees are encouraged to challenge conventional thinking and possess an attitude of continuous improvement.

Our goal is to hire the best and the brightest. We value intellectual horsepower first and foremost, and people who demonstrate an outstanding talent. There is no roadmap to future success, so we need people who can help us build it.

Technologists at WorldQuant research, design, code, test and deploy firmwide platforms and tooling while working collaboratively with researchers and portfolio managers. Our environment is relaxed yet intellectually driven. We seek people who think in code and are motivated by being around like-minded people.

The Role: We are seeking a diligent and driven application security engineer with strong hands-on technical skills, proven problem solving ability and excellent communication skills. As an application security engineer at WorldQuant you will work closely with our technologists, researchers and portfolio managers to define application security best practices, perform software architecture and design reviews, conduct white box security testing, and support the identification, interpretation, and remediation of vulnerabilities across a variety of applications, programming languages, and platforms.

Responsibilities (including but not limited to):

Develop new tools to assist developers and users to perform their work securely and more efficiently
Operate and manage WorldQuant’s secrets and authentication management tool instances
Develop tooling for continuous audit, code analysis and other security analysis activities
Provide support for existing Application Security team products.
Develop new features for existing Application Security team products, such as OIDC IDPs, Workload Identity tools, CA infrastructure and Cloud assessment tools - includes both proprietary and deeply integrated third party tools
Develop management tools and provide support for foundational components such as Kerberos, SSH, SSL and more.

What you'll bring:

Degree in a technical or quantitative discipline from a top tier University
Solid understanding of UNIX security.
Knowledge of industry standard tools beneficial - (eg gitlab, nix, redhat linux, claude, jira, etc)
Strong programming experience, preferably in python or rust.
Experience operating security infrastructure, developing integrations of security products.
Ability to communicate and design solutions related to security from first principles.
Experience with Linux, Kerberos, SSL, SSH and Active Directory
Experience with agentic development
Strong verbal and written communication skills in English

What We Offer:

Competitive compensation package
Core benefits include: premium private health insurance and life insurance with savings plan
Support for every aspect of life through Employee Assistance Program and fully covered sick leave
Strong culture of learning and development: training courses, library, guest speakers, share and learn events, global conferences
Regular offsite team buildings, annual conferences and occasional global summits – opportunity to travel and connect with our local and global teams
Employee resources groups with strong diversity and inclusion culture

By submitting this application, you acknowledge and consent to terms of the WorldQuant Privacy Policy. The privacy policy offers an explanation of how and why your data will be collected, how it will be used and disclosed, how it will be retained and secured, and what legal rights are associated with that data (including the rights of access, correction, and deletion). The policy also describes legal and contractual limitations on these rights. The specific rights and obligations of individuals living and working in different areas may vary by jurisdiction.

Copyright © 2025 WorldQuant, LLC. All Rights Reserved.
WorldQuant is an equal opportunity employer and does not discriminate in hiring on the basis of race, color, creed, religion, sex, sexual orientation or preference, age, marital status, citizenship, national origin, disability, military status, genetic predisposition or carrier status, or any other protected characteristic as established by applicable law.

Senior Security Engineer

Senior Security Engineer

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