A fantastic opportunity has arisen for a Network Security Engineer to join a specialist team responsible for protecting critical network infrastructure and supporting proactive cyber defence operations within a 24/7 security environment.This role reports to the senior security leadership team, working as part of a 24/7 Internal Security Response function.Key Responsibilities:Responding to network security incidents and supporting SOC triage activitiesDesigning, implementing and maintaining robust network security solutionsConfiguring, troubleshooting and optimising next-generation firewallsManaging secure proxy platforms and implementing content filtering policiesIdentifying vulnerabilities and implementing secure remediation actionsSupporting compliance with industry security standards and best practiceEnhancing and standardising network security tools based on purple team findingsCollaborating with cross-functional teams to deliver secure infrastructure changesThe ideal candidate would have:Exposure to cyber security tool integration within network environmentsKnowledge of, or willingness to learn, platforms such as Darktrace, Splunk ES or LogRhythmStrong packet capture and traffic analysis skills to identify malicious activity (C2, exploitation, lateral movement, exfiltration)Experience working alongside SOC analysts to triage Tier 1 alerts effectivelyFamiliarity with LDAP and application traffic flow root cause analysisUnderstanding of OSI model principles and common protocols (DNS, HTTP/S, SMTP, FTP/S, LDAP/S)Experience with SIEM tools and/or network packet capture solutionsThe ideal candidate must have:Solid understanding of networking principles (TCP/IP, DNS, routing, switching, VLANs, load balancing)Strong expertise configuring and maintaining firewalls (Cisco, Checkpoint, Palo Alto)Hands-on experience with next-gen firewall security features (IPS/IDS, SSL decryption, deep packet inspection)Proven ability managing secure proxy solutions (Bluecoat, F5) including SSL inspection and traffic monitoringIn depth knowledge of security protocols (IPSec, SSL/TLS, VPNs, two factor authentication)Strong understanding of network security architectures and zoning (DMZ, internal networks)Proficiency with monitoring tools such as PRTG or NagiosThis position offers a lucrative benefits package, which includes but is not inclusive of: **Bonus scheme (based on company performance)Annual pay reviews and promotion reviews (based on personal performance)Overtime paid at an enhanced rateFlexi-Leave (of up to 15 days)Pension scheme (total contribution of up to 14%)Subsidised site facilities and restaurantsFree parkingExcellent career progression and training / career development opportunitiesIf this role looks like your next challenge, please contact Keelan ASAP or apply via this advert!** Please note that due to the nature of the client’s business, only candidates who currently hold full SOLE British Citizenship (without limitations) will be considered. **We endeavour to reply to every candidate, every time but if you haven’t heard back within 10 days, please understand that you have unfortunately been unsuccessful for this position, or the position has been filled. Please call the office or send an email to discuss other potential positions.