Senior Network Security Engineer

CFP Energy (UK) Ltd
London
6 months ago
Applications closed

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Job Overview:

As a Network Security Engineering team member, the Senior Network Security Engineer will specialise in firewalls and routing. The ideal candidate is a flexible, self-motivated individual who excels at multitasking and thrives in a fast-paced, challenging environment.

This self-starter will bring ingenuity and expertise to design, implement, and maintain secure, scalable, high-performing network solutions that connect on-premises and public cloud environments. The role emphasizes driving automation through Infrastructure-as-Code (IaC) and GitOps methodologies, ensuring optimal network performance, and integrating robust security measures.

Responsibilities:

Network Design and Implementation:

  • Design and implement secure, scalable, and high-performing network solutions bridging on-premises and public cloud environments.
  • Leverage routing and switching expertise (e.g., BGP, OSPF, MPLS) to ensure network performance and reliability across diverse environments.
  • Analyze operational needs and proactively develop creative network solutions to address security challenges.

Security and Firewall Management:

  • Manage firewall configurations for the CyberEnergianetwork based on operational requirements.
  • Develop and implement network security tools, produce threat models, and assess risks around existing configurations.
  • Provide subject matter expertise on network security, firewalls, and industry best practices.
  • Document and formalize security processes.

Automation and Infrastructure Management:

  • Drive automation initiatives using Infrastructure-as-Code (IaC) practices (e.g., Terraform, Ansible, Chef) and GitOps workflows to streamline network provisioning and enforce configuration consistency.
  • Develop CI/CD pipelines tailored for IT infrastructure to enhance deployment efficiency and integrate network security measures.
  • Build and maintain internal automation solutions (e.g., Slackbots and integrations) to streamline IT operations and business processes.

Monitoring and Maintenance:

  • Manage and maintain network security systems through system patches and periodic maintenance tasks.
  • Establish comprehensive observability and proactive issue-resolution strategies using tools like SNMP, Syslog, Netflow, Elasticsearch (ELK Stack), and Grafana.

Collaboration and Communication:

  • Work with CyberEnergiateams to identify functional needs, develop secure architectures, and communicate security best practices and policies.
  • Collaborate with security teams to align IT automation with Zero Trust principles and compliance frameworks.
  • Clearly explain technical concepts to both technical and non-technical audiences, demonstrating excellent stakeholder management skills.

Basic Qualifications:

  • 5+ years of experience in network security, IT infrastructure, applications, endpoints, and/or APIs.
  • 2+ years of experience hardening Windows, MacOS, and/or Linux operating systems.

Required Skills and Experience:

Technical Expertise:

  • Strong experience with enterprise network vendors (e.g., CheckPoint, Palo Alto).
  • Proficiency in routing and switching, including protocols like BGP, OSPF, and MPLS.
  • Deep understanding of network security principles (e.g., ACLs, firewalls, VPNs, 802.1x authentication, profiling, RBAC).
  • Familiarity with network monitoring tools/protocols and logging pipelines (e.g., SNMP, Syslog, Netflow, ELK Stack, Grafana).
  • Strong knowledge of cloud platforms (e.g., Azure, AWS, GCP) and infrastructure management.
  • Experience with network security technologies, including firewalls (Palo Alto, CheckPoint), IDS/IPS, NDR, switch/router ACLs, NAC solutions, IPSec/TLS VPNs, WAFs, email security, and SIEM logging/alerting.

Programming and Automation:

  • Proficiency in a modern programming language (e.g., Python).
  • Experience with IaC practices, GitOps workflows, and cloud automation best practices.
  • Proven ability to integrate corporate IT infrastructure with CI/CD pipelines and DevOps workflows.
  • Familiarity with networking protocols and the OSI model.

General Skills:

  • Strong Linux background and passion for open-source technology (a must).
  • Excellent analytical, problem-solving, and time-management skills.
  • Adept at learning new technologies and systems.
  • Experience testing and implementing changes in a production environment.
  • Exceptional communication skills (written and verbal) to work cross-functionally with IT, security, and business teams.

Preferred Attributes:

  • Demonstrated track record of developing and maintaining internal tools to optimize IT operations.
  • Ability to work independently as a self-starter with minimal supervision.


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