Systems 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. Responsibilities • Designing, architecting, and maintaining Tower’s growing infrastructure to ensure a reliable, scalable environment that supports rapid deployment, automation, and innovation across teams. • Implementing and managing Windows Server operating systems, Active Directory, Group Policy, DNS, DHCP, and related services, along with virtualization technologies including VMware ESXi, vCenter, Hyper-V, and Citrix (XenDesktop, App Layering, and DaaS), and wireless network management. • Managing and optimizing day-to-day infrastructure operations, including physical server installation, racking, and configuration (e.g., Dell PowerEdge), configuration management, and administration of Mobile Device Management (MDM) solutions such as Workspace ONE and Jamf. • Troubleshooting and resolving complex incidents and service requests using network and system analysis tools such as Wireshark, NetMon, and Sysinternals, while participating in off-hours, weekend, and holiday on-call rotations to ensure 24/7 support coverage. • Developing and implementing automation scripts using PowerShell, Python, or similar languages to streamline deployments, eliminate repetitive tasks, and improve operational efficiency, while creating and maintaining system configuration documentation, standard operating procedures (SOPs), and contingency plans. • Collaborating with cross-functional teams on IT security, vulnerability assessment, and threat management initiatives, leveraging tools such as Qualys to strengthen infrastructure security and operational resilience. Qualifications • A bachelor’s degree in computer science, systems engineering, or a related technical field. • At least 2–6 years of experience designing, implementing, and supporting reliable, scalable Windows-based and mixed operating system infrastructures, with strong knowledge of Windows Server (2016/2019/2022), Active Directory, Group Policy, SCCM, DFS, DNS, DHCP, and Kerberos. • Experience with server and desktop management, deployment, OS imaging, and automation using SCCM, along with familiarity with virtualization platforms such as VMware ESXi, vCenter, Hyper-V, and Citrix XenDesktop/App Layering, and knowledge of storage technologies including EMC Unity, NetApp FAS, and related best practices. • Experience with Linux administration and Windows interoperability, including LDAP, NFS, file sharing, and Salt, with proficiency in Linux command-line administration and troubleshooting; knowledge of networking fundamentals such as TCP/IP, DNS, and SSL, and experience using diagnostic tools including Wireshark and NetMon. • Experience managing collaboration platforms such as Google Workspace and Slack, with proficiency in at least one scripting language, such as PowerShell or Python; experience administering Atlassian products, including Confluence, Jira, and Statuspage, is an advantage. • Strong communication and problem-solving skills, with the ability to diagnose technical issues and collaborate effectively across teams. 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.