Network Security Administrator

Profile

SIG has a Network Security Administrator job opening on our Information Security Team at our headquarters in Bala Cynwyd, PA, just minutes from Center City Philadelphia. In this role, you will be responsible for managing and implementing technologies such as firewalls, IDS/IPS, Antivirus, remote access security controls, and web and email security controls that protect our production environment from information security risks. You will support our daily operations by responding to issues, executing production changes and upgrading the firm’s security infrastructure to meet business needs. As you evaluate current security risks, you will identify appropriate security controls and implement them into our environment. You will also participate in enterprise-wide projects to deploy new security technologies that will continue to protect our firm.
SIG has over 500 technologists that help to make us one of the most successful privately held trading firms in the world - and we’re growing. Technology is core to our business success and our technology footprint proves it. You don’t have to have trading industry experience to join SIG; we can teach you the business. But you do need to have deep technical skills and an inclination to build systems iteratively and collaboratively with engineers up and down the stack. Learn more about why SIG’s systems are some of the most competitive in the industry – apply today.
Essential Functions:
Manage end-point security controls (such as Antivirus protection), remote access security controls, and web and email security controls (proxies and anti-spam/anti-virus mail gateways)
Execute requests for changes to security infrastructure
Evaluate and troubleshoot technical problems that arise within the security infrastructure
Develop and maintain in-house tools to manage large scale security infrastructure
Participate in and manage projects initiated by the security team
Operate, administer and maintain firewalls, and VPNs including execution of firewall policy changes, upgrades, new installations and VPN deployments
Create and maintain technical documentation
Participate in 24x7 on-call support rotation schedule
Required/Preferred Qualifications:
Minimum of 2 years of professional and/or co-op/internship experience in a network, security and/or systems administration function, or a similar role, required; firewall administration experience preferred
Experience with at least one of the following required: email and web security, VPNs, intrusion detection, vulnerability & risk assessment, encryption, virus/worm prevention, E-business & web application technologies, and/or two-factor authentication
An understanding of IP routing and switching required
Strong grasp of TCP/IP concepts and experience using network troubleshooting tools and techniques required
Demonstrated experience with either Windows and/or Linux/UNIX server support required
Familiarity with and strong interest in security principles, philosophies, and disciplines required
Programming, web development, and database experience (especially with any of the following or similar technologies: Python, Perl, Shell, MySQL, Microsoft SQL, or similar database technologies and PHP) a plus
Understanding of cryptography as it relates to computer, application and network security preferred
Bachelors degree in a technical discipline preferred
Susquehanna International Group
Web: ****

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