Network Security Engineer

Network Security Engineer

Posted Today by 1752386092

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£75,000 Per year
Undetermined
Onsite
London
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Summary: An experienced Network & Security Engineer is sought for a prominent organization in the energy and trading sector, focusing on high-performance culture and advanced technology. The role involves leading the design, implementation, and maintenance of network and infrastructure security while collaborating with IT teams to enhance security measures. This position offers a unique opportunity to contribute to a well-funded international business with a significant presence in London. The ideal candidate will take ownership of the company's network and infrastructure estate, ensuring operational excellence.

Key Responsibilities:

  • Design & implement strategic plans for network & security infrastructure
  • Lead threat detection & response using tools like SIEM, Sophos MTR, & Splunk
  • Manage firewalls, VPNs, intrusion detection systems, & endpoint protection
  • Conduct annual penetration testing & remediate vulnerabilities
  • Support disaster recovery planning & incident response
  • Provide BAU support & mentor junior IT staff

Key Skills:

  • Hands-on experience in network & infrastructure support
  • Strong knowledge of Cisco & Checkpoint technologies
  • Proficient working within a VMware environment
  • Comfortable working in a regulated, high-availability environment
  • Excellent troubleshooting skills & a sleeves-rolled-up attitude
  • Certifications - minimum of CCNA. CCNP is desirable

Salary (Rate): £75,000 yearly

City: London

Country: United Kingdom

Working Arrangements: on-site

IR35 Status: undetermined

Seniority Level: undetermined

Industry: IT

Detailed Description From Employer:

Network & Security Specialist

Location: London, Onsite
Type: Permanent
Salary: £65,000 - £75,000

An experience Network & Security engineer is required for a globally recognised organisation in the energy & trading sector, known for its high-performance culture & cutting-edge technology environment. This is a rare opportunity to join a well-funded, international business with a strong London presence, where technology plays a central role in driving operational excellence.


They are seeking a well-rounded Network & Infrastructure Security Specialist to join a small, collaborative IT Team & take ownership of the company's network & infrastructure estate, while also contributing to proactive security improvements.

The Role:

You'll be the technical lead for all things network & infrastructure -designing, implementing, & maintaining robust infrastructure to support a fast-paced, mission-critical environment. You'll also collaborate with support & infrastructure teams to ensure seamless operations & rapid incident response.

Key Responsibilities:

  • Design & implement strategic plans for network & security infrastructure
  • Lead threat detection & response using tools like SIEM, Sophos MTR, & Splunk
  • Manage firewalls, VPNs, intrusion detection systems, & endpoint protection
  • Conduct annual penetration testing & remediate vulnerabilities
  • Support disaster recovery planning & incident response
  • Provide BAU support & mentor junior IT staff

Tech Stack & Tools:

  • Security: Checkpoint, Cisco ISE, Zscaler, Sophos MDR, Mimecast, Okta, Fortinet
  • Networking: Cisco Catalyst/Nexus, Proxy (Squid/Pfsense), CUCM
  • Infrastructure: VMware, Dell VxRail, Rubrik, RecoverPoint
  • Monitoring: LogicMonitor, Security Scorecard, Horizon 3.AI NodeZero
  • OS & Platforms: Windows Server 2025/2022, Linux, Exchange 2016/2019, SQL Server

About You:

  • Hands-on experience in network & infrastructure support
  • Strong knowledge of Cisco & Checkpoint technologies
  • Proficient working within a VMware environment
  • Comfortable working in a regulated, high-availability environment
  • Excellent troubleshooting skills & a sleeves-rolled-up attitude
  • Certifications - minimum of CCNA. CCNP is desirable

Why this opportunity?

  • Join a prestigious global business with a strong London base
  • Work in a collaborative, technically advanced environment
  • Opportunity to shape the future of IT security in a mission-critical role

Please get in touch for an immediate review - jenna@pioneer-search.com

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