Security Engineer III

The Application Security Engineer leads efforts to enhance application security and the secure software development lifecycle. This individual is responsible for performing manual application security assessments (application pentests) and communicating security findings to the developers and QA teams. Additionally, the individual will provide application design support and security best practice guidance, in the form of consultations, to various development teams and business stakeholders. This individual will also actively promote security through engaging interactive workshops and exercises, such as internal Capture The Flag (CTF) events.

Principal Accountabilities

• Serve as the primary application security expert for development teams, offering security consulting and best practice guidance throughout the Software Development Life Cycle (SDLC).

• Perform manual security assessments at key points in the SDLC.

• Produce documentation (reports) and present findings of manual security assessments to various stakeholders, including senior leadership.

• Participate in security architecture reviews and threat modelling.

• Contribute to automation initiatives, including the integration of new security tools and processes (e.g., AI).

• Demonstrate a commitment to continuous education and staying current within the application security domain, promoting collaboration and knowledge sharing.

Skills Requirements:

• 5+ years experience with industry standard penetration testing, or ability to demonstrate equivalent knowledge.

• Expertise performing blackbox/greybox/whitebox security assessments of applications (e.g., web applications, APIs, thick clients, web sockets) which use HTTP and/or proprietary protocols.

• Expert level skills with application security testing tools including: Burpsuite, sqlmap, nmap, etc.

• Experience performing manual reviews of application source code for security vulnerabilities written in various languages including: Java, Javascript, .Net (C#), etc.

• Experience with Cloud architectures, security principles and services. Google Cloud Platform (GCP) is preferred.

• Experience with automating security testing and/or other relevant activities to streamline service delivery. Preferred scripting languages: Python, bash, Powershell, etc.

• Experience with UNIX or Linux.

• A self-starter who is highly motivated. Proactively seek answers, ask for help when needed, and communicate solutions.

• Excellent Oral and Written communications skills. Ability to effectively communicate and interface with peers and stakeholders at all levels, including senior leadership.

Nice to have:

• Experience in securing modern APIs, including knowledge of authentication/authorization standards like OAuth 2.0 and JWT, and understanding API-specific vulnerabilities.

• Experience in conducting formal threat modeling using frameworks like STRIDE to identify potential security flaws in the design phase.

• Experience with AI/ML security testing methodologies, including understanding of OWASP Top 10 for Large Language Models (LLMs) and common AI security vulnerabilities, and using AI to improve pentesting.

• Experience with prior development work.

• Experience with application reverse engineering and using tools such as: Java decompilers, .Net decompilers, IDAPro, etc.

• Experience with Capture The Flag (CTF) competitions and bug bounty programs.

• Relevant industry certifications such as OSCP, eWPTX, CCSP, GCP Professional Cloud Security Engineer, etc.

CME Group: Where Futures are Made

CME Group is the world's leading derivatives marketplace. But who we are goes deeper than that. Here, you can impact markets worldwide. Transform industries. And build a career by shaping tomorrow. We invest in your success and you own it – all while working alongside a team of leading experts who inspire you in ways big and small. Problem solvers, difference makers, trailblazers. Those are our people. And we're looking for more.

At CME Group, we embrace our employees' unique experiences and skills to ensure that everyone's perspectives are acknowledged and valued. As an equal-opportunity employer, we consider all potential employees without regard to any protected characteristic.

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