Network Specialist - Security

Squarepoint Capital; London; On-site; GBP 70,000 - 90,000; Full time

Job summary

A financial services firm is seeking a Network Security Specialist to safeguard its global network infrastructure. The role involves designing and implementing robust security measures, leading project delivery, and providing advanced technical support. The ideal candidate has extensive experience in network engineering and holds relevant certifications. This role offers opportunities for process improvement and collaboration across multiple locations.

Qualifications

• Minimum 7 years of experience in network engineering and project delivery.
• Strong foundation in multiple security technologies.
• Experience with cloud-based solutions like AWS, GCP, Azure.

Responsibilities

• Design and deploy comprehensive network security solutions.
• Lead project delivery and management efforts.
• Provide advanced L3 support for performance and security issues.

Skills

Network security

Project management

Technical support

Process improvement

Scripting with Python

Education

Degree in Network Engineering, Computer Science, or related IT discipline

CCNP certification or higher

Tools

Fortinet security solutions

Palo Alto security solutions

Cisco ISE

Job description

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As a Network Security Specialist at Squarepoint, you will play a critical role in safeguarding the global network infrastructure, spanning regional data centers, offices, co-locations, and public cloud providers. Your primary responsibility will be to design, implement, and maintain robust security controls and services that protect the organization's network infrastructure.

This will involve leading and participating in various projects, including the installation, monitoring, and optimization of network and security hardware, software, and communication links.

Main Duties & Responsibilities:

• Design and deploy comprehensive network security solutions that align with corporate security standards and requirements.
• Lead project delivery and management efforts, collaborating with internal stakeholders and external vendors to ensure successful project outcomes.
• Implement, support, and maintain network security infrastructure across all Squarepoint locations, including offices, data centers, and co-location sites, with occasional travel required.
• Provide advanced technical L3 support to troubleshoot and resolve performance and security issues, ensuring prompt resolution and minimal downtime.
• Identify opportunities for process improvements and implement automation solutions to increase efficiency, reduce manual effort, and enhance overall security posture.
• Develop innovative and creative solutions to address operational security challenges, analyzing complex problems, and providing proactive recommendations for improvement.
• Ensure the ongoing maintenance and security of systems by applying patches, updates, and performing routine maintenance tasks to prevent vulnerabilities and downtime.
• Develop, maintain, and update standard operating procedures and technical guides for security solution implementations, ensuring knowledge sharing and consistency across the organization.

Preferred Qualifications:

• Degree in Network Engineering, Computer Science, or related Information Technology discipline
• CCNP certification or higher (CCIE preferred)
• Minimum 7 years of experience in network Engineering and project delivery, with a strong track record of successful project execution.
• Strong foundation in multiple security technologies, including network security, next-generation firewalls, network access control, micro-segmentation, and security architecture.
• Proven experience with Fortinet and/or Palo Alto security solutions, with expertise in design, deployment, and management.
• Knowledge and hands-on experience with Cisco ISE, including technical deployment and configuration.
• Advanced knowledge of routing and switching protocols, including:
• Unicast protocols: OSPF, BGP, NAT, IPSEC, and GRE
• Multicast protocols: PIM, RP, MSDP, and IGMP
• Switching protocols: QoS, HSRP/VRRP, and VPC/MLAG
• Proficiency in scripting and automation, with Python as the preferred language.
• Strong understanding of network diagnostics, monitoring, alert management, and performance tools, with hands-on experience in troubleshooting and optimization.
• Familiarity with cloud-based solutions, such as AWS, GCP, and Azure, as well as micro-segmentation tools like Illumio, is a plus.
• Excellent communication and interpersonal skills, with the ability to work under pressure and maintain attention to detail.
• Experience with open-source network scanning tools and certifications like PCNSA, CISSP, or similar, is desirable.