Senior Network Security Engineer

Do you want to tackle the biggest questions in finance with near infinite compute power at your fingertips? 

G-Research is a leading quantitative research and technology firm, with offices in London and Dallas.

We are proud to employ some of the best people in their field and to nurture their talent in a dynamic, flexible and highly stimulating culture where world-beating ideas are cultivated and rewarded. 

This is a hybrid role based in our new Dallas infrastructure hub where we work on the latest technologies in a cutting-edge environment.

The role

As G-Research’s Lead Network Security Engineer, you will play a critical role in managing, implementing and optimising a hyperscale network security infrastructure.

As a technical leader, you will oversee complex security architecture initiatives, mentor peer engineers, handle escalated incident response efforts and ensure compliance with the latest security standards. Our company roadmap is centred on automation, therefore a background in automation and interest in leveraging automation is key to this role. 

Key responsibilities of the role include:

• Mentoring junior and mid-level engineers, overseeing team activities and providing guidance in complex troubleshooting and architecture decisions 

• Implementing and managing advanced security solutions using firewalls, proxy, system hardening, treat profile and segmentation strategies to secure the intellectual data

• Acting as a lead escalation for critical security incidents

• Developing automation playbooks, network security policies framework and consolidation, treat model and drive root cause analysis with corrective actions

• Overseeing network vulnerability assessments, penetration testing coordination and remediation planning 

• Championing the integration of automated tools for infrastructure build, day two support and lifecycle management of all security infrastructure using platforms like Python, Terraform, and vendor APIs, leveraging tools such as Algosec, Tufin, Jenkins and Git

• Working closely with infrastructure, DevOps and application teams to embed security best practices throughout the technology stack

Who are we looking for?

The ideal candidate will have the following skills and experience: 

• Extensive experience in network engineering and security engineering, along with proven architectural experience in trusted, untrusted and DMZ environments

• Proven leadership experience in a senior or lead engineering role, with the ability to drive the team and work individually

• Strong understanding of network protocols and the OSI model, with hands-on experience in TCP/UDP-based applications, routing, switching and load balancing

• Extensive knowledge of network security technologies, including firewalls, VPNs, proxies, MACsec, IPsec, HTTPS, certificate chains, DNS, NTP, AAA, and domain-based authentication and authorisation

• Expertise with multiple security vendors, such as, Palo Alto, Fortinet, Check Point and F5

• Strong understanding of Zero Trust principles, segmentation, and secure cloud networking in AWS or Azure

• Familiarity with scripting and automation using Python, Ansible, or Terraform for example 

• Certifications such as CISSP, CCIE Security, GIAC (GSEC/GCIH/GXPN), Palo Alto, Fortinet or equivalent highly preferred

The following skills and experience would be beneficial: 

• Core network with VxLAN EVPN DC architecture experience 

• Experience with hybrid or multi-cloud environments

• Prior involvement in M&A technical integrations

• Background in building SOC capabilities or working with MSSPs

• Excellent written and verbal communication skills

• Firewall automation experience is beneficial

Why should you apply?

This role is employed through our US affiliate.