Senior Network Security Engineer

CFP Energy (UK) Ltd
London
1 week ago
Create job alert

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.

J-18808-Ljbffr

Related Jobs

View all jobs

Senior Network & Security Engineer

Senior Network & Security Engineer

Senior Network & Security Engineer

Senior Network & Security Engineer

Network Security Engineer

Senior Security Architect (Network & Cloud) - Remote (UK)

Get the latest insights and jobs direct. Sign up for our newsletter.

By subscribing you agree to our privacy policy and terms of service.

Industry Insights

Discover insightful articles, industry insights, expert tips, and curated resources.

Portfolio Projects That Get You Hired for Cyber Security Jobs (With Real GitHub Examples)

With rising cyber threats and increasingly sophisticated attacks, cyber security has become a critical priority for organisations worldwide. From penetration testers (pentesters) and SOC analysts to cloud security engineers and threat intelligence specialists, the demand for skilled cyber security professionals continues to surge. But how do you stand out in a growing field? Alongside your CV, an impressive cyber security portfolio can be the distinguishing factor that convinces employers you’re the right fit. In this comprehensive guide, you’ll discover: Why a cyber security portfolio is essential for job seekers in this domain. How to align portfolio projects with different cyber security career paths. Real GitHub examples that demonstrate best practices in security-focused projects. Actionable project ideas you can start today, from penetration testing labs to blue-team detection pipelines. Best practices for organising your repos and presenting your work so hiring managers can instantly see your impact. When you’re ready to pursue your next opportunity, remember to upload your CV on CyberSecurityJobs.tech. Our specialised platform connects talented security professionals with employers who need your expertise—exactly what your portfolio will showcase.

Cyber Security Job Interview Warm‑Up: 30 Real Coding & System‑Design Questions

The need for skilled cyber security professionals has never been greater. As organisations rapidly digitise their operations and store increasing amounts of sensitive data online, cyber threats loom large—ranging from sophisticated ransomware attacks to insider threats and state‑sponsored espionage. Against this backdrop, cyber security jobs remain some of the most in‑demand and mission‑critical roles on the market. If you’re preparing for a cyber security interview, expect to be tested on a broad spectrum of topics—from secure coding and incident response to network security architecture and compliance standards. In many cases, companies also include problem‑solving exercises and system design scenarios to gauge how well you can apply theoretical knowledge to real‑world threats. To help you ace these assessments, we’ve compiled 30 real coding & system‑design questions you might encounter. Each reflects a key area of cyber security—whether it’s encryption and key management, threat modelling, or designing a zero‑trust network. Along the way, we’ll offer insights and best practices so you can stand out from the crowd. If you’re on the lookout for exciting cyber security roles in the UK, head to www.cybersecurityjobs.tech. There, you’ll discover a range of positions—covering everything from penetration testing and threat intelligence to compliance management and security operations. Let’s dive into the essentials of interview readiness.

Negotiating Your Cybersecurity Job Offer: Equity, Bonuses & Perks Explained

How to Secure Compensation That Reflects Your Value in the UK’s High-Stakes Cybersecurity Sector Introduction As cyber threats grow more sophisticated and frequent, cybersecurity professionals have never been more in demand. From thwarting ransomware attacks to architecting secure cloud infrastructures, mid‑senior cybersecurity experts play a critical role in safeguarding a company’s data and reputation. Thanks to this growing reliance on cybersecurity, employers in the UK are going above and beyond simple salary offers to attract the top echelon of talent. Although base salary remains a key component of any job offer, the broader package—encompassing equity, bonuses, and perks—can often surpass what you’d gain from a small bump in monthly pay. For cybersecurity specialists working in areas such as threat intelligence, incident response, penetration testing, or compliance, the complexity and risk mitigation you bring to the table is massive. Knowing how to negotiate the entire package ensures you are duly rewarded for keeping an organisation’s data, assets, and operations safe. In this guide, we’ll delve into every aspect of negotiating a cybersecurity job offer. Whether you’re pivoting to a mid‑senior role or cementing your expertise at an established security consultancy, understanding the full range of compensation elements will help you secure an offer that acknowledges the criticality of what you do. Let’s explore equity options, performance bonuses, and the perks that matter most, so you can come out of your next job negotiation confident that you’re getting more than just a salary.