Senior Network Security Specialist
4 days ago
About the Role
We are seeking an experienced Network Security Specialist to join our team at Jane Street. As a key member of our Network Security team, you will play a critical role in maintaining the highest level of service and ensuring our network security levels remain ahead of our business demands.
Jane Street's distributed systems are built on a robust, multi-vendor network infrastructure that supports all traffic profiles from trading to internet connectivity. As a Network Security Specialist, you will be responsible for ensuring the security and integrity of these systems, collaborating with colleagues globally to identify and resolve issues, and implementing security measures to mitigate threats and vulnerabilities.
Key Responsibilities
- Security Policy Development: Assess and refine our firewall policies to align with our security standards and business needs.
- Threat Mitigation: Collaborate with our Cybersecurity team to identify and mitigate potential threats and vulnerabilities.
- Firewall Policy Implementation: Work closely with stakeholders to establish and implement firewall policies that meet our security requirements.
- Troubleshooting: Analyze packet captures and review audit logs to identify and resolve network security issues.
- DMZ Design and Deployment: Collaborate with our Network Engineering team to design and deploy secure DMZ networks.
- Monitoring and Automation: Contribute to the development of monitoring and automation systems to improve the team's ability to detect and respond to security incidents.
About You
We are looking for a highly motivated and experienced Network Security Specialist who possesses a strong understanding of network security principles and technologies. Key qualifications include:
- Hands-on Experience: Proven experience with firewall configuration and troubleshooting.
- Network Security Knowledge: Strong understanding of network security principles and technologies, including TCP, ARP, BGP, OSPF, DHCP, and DNS.
- DMZ Design: Experience designing and implementing secure DMZ networks.
- Automation: Motivated to automate workflows to increase efficiency and improve security.
- Communication Skills: Strong ability to communicate complex security concepts to both technical and non-technical stakeholders.
- Team Player: Flexible and reliable team player who enjoys working in a collaborative environment.
- Programming Skills: Proficiency in a programming language is preferred.
- Language Skills: Fluency in English is required.
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