Information Security Engineer III

Tower Research Capital is a leading quantitative trading firm founded in 1998. Tower has built its business on a high-performance platform and independent trading teams. We have a 25+ year track record of innovation and a reputation for discovering unique market opportunities. Tower is home to some of the world’s best systematic trading and engineering talent. We empower portfolio managers to build their teams and strategies independently while providing the economies of scale that come from a large, global organization. Engineers thrive at Tower while developing electronic trading infrastructure at a world class level. Our engineers solve challenging problems in the realms of low-latency programming, FPGA technology, hardware acceleration and machine learning. Our ongoing investment in top engineering talent and technology ensures our platform remains unmatched in terms of functionality, scalability and performance. At Tower, every employee plays a role in our success. Our Business Support teams are essential to building and maintaining the platform that powers everything we do — combining market access, data, compute, and research infrastructure with risk management, compliance, and a full suite of business services. Our Business Support teams enable our trading and engineering teams to perform at their best. At Tower, employees will find a stimulating, results-oriented environment where highly intelligent and motivated colleagues inspire each other to reach their greatest potential. Key responsibilities: Developing and implementing automated systems (Python/Bash) to identify known security exposures and Engineering security infrastructure to optimize efficiency, expand capabilities, meet client requirements Supporting security infrastructure and act as an escalation point for the firm in troubleshooting/supporting any issues. (Hashicorp vault / IAM / SIEM / EDR). Consulting on discovered security flaws, how to exploit them, and how to remediate flaws. Participating in attack simulation exercises on a periodic basis, contribute to threat and vulnerability management and conduct continuous assessment around the effectiveness of defense response. Ensuring adherence to appropriate standards, best practices, workplace policies and procedures. Working effectively as a team member, providing hands-on support to clients, maintaining communication and updating senior staff on progress and participate in Incident Response procedures if/when required. Qualifications 5 years of relevant experience, successfully delivering in an Enterprise environment. Bachelor/Masters of Engineering in Computer Science / Information Security / Cyber Security Exposure to Unix/Linux environments with strong command-line and shell knowledge, along with scripting/development capability in Python/Bash. Strong understanding of the intelligence lifecycle and frameworks such as the Cyber Kill Chain and MITRE ATT&CK. Exposure to cyber threats in the financial sector, with a thorough understanding of DeFi and Blockchain. Experience with SIEM technologies, threat hunting, monitoring, investigations, and strong analytical, writing, and documentation skills. Ability to mentor and guide security analysts in cyber threat intelligence skills, work with minimal guidance, and familiarity with tools like JIRA and Confluence. Preferred Qualifications Strong knowledge of network and security tools, including IDS/IPS, NAC, DLP, VPN, firewall management and audit, endpoint security, anti-malware, and database audit/monitoring. Experience in secure architecture design and security implementations across systems. Security expertise in areas such as Python, Bash, C/C++, reverse engineering, wireless networks, web vulnerabilities (SQLi, XSS, CSRF), and exploit development. Experience with security applications for logging, packet capture, email, directory services, authentication, remote access, encryption, and cloud security deployment and controls (database security is a plus). Strong analytical, critical thinking, and communication skills, with the ability to work under pressure, collaborate with distributed teams, and adapt to different time zones. Self-driven mindset with a passion for learning, along with the ability to mentor and train team members while handling complex challenges. Benefits Tower’s headquarters are in the historic Equitable Building, right in the heart of NYC’s Financial District and our impact is global, with over a dozen offices around the world. At Tower, we believe work should be both challenging and enjoyable. That is why we foster a culture where smart, driven people thrive – without the egos. Our open concept workplace, casual dress code, and well-stocked kitchens reflect the value we place on a friendly, collaborative environment where everyone is respected, and great ideas win. Our benefits include: Generous paid time off policies Savings plans and other financial wellness tools available in each region Hybrid working opportunities Free breakfast, lunch, and snacks daily In-office wellness experiences and reimbursement for select wellness expenses (e.g., gym, personal training and more) Company-sponsored sports teams and fitness events (JPM Corporate Challenge, Cycle for Survival, Wall Street Rides FAR and more) Volunteer opportunities and charitable giving Social events, happy hours, treats, and celebrations throughout the year Workshops and continuous learning opportunities At Tower, you’ll find a collaborative and welcoming culture, a diverse team and a workplace that values both performance and enjoyment. No unnecessary hierarchy. No ego. Just great people doing great work – together. Tower Research Capital is an equal opportunity employer