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Network Security Operations Engineer

Job Title: Network Security Operations Engineer
Contract Type: Permanent
Location: Cambridge, United Kingdom
REF: 1579
Contact Name: Jonny Duggan
Job Published: about 1 month ago

Job Description

Network Security Operations Engineer

£50-£60k plus benefits





Our mission is to connect people to knowledge. We provide intuitive, cognitive knowledge solutions – minimising the effort required for people to find, consume and share what they know.


Company Principles


  • Be passionate and committed.
  • Obsess over customers, not competitors.
  • Defy conventions - always think BIG.
  • Express the will to be awesome.
  • Keep calm and embrace the weird.


The company is a highly successful Software as a Service company and leading provider of multi-channel Knowledge Solutions for customer-facing websites, corporate intranets and contact centres.  Enabling organisations to achieve high-impact wins on improved service, reduced costs and increased sales. The company’s corporate headquarters are in Cambridge, UK.


As a Network Security Operations Engineer, you’ll be joining a small team responsible for the continuous service delivery of SaaS services from UK data-centre facilities. 


Key Tasks and Responsibilties


  • Management of large-scale, high-performance network deployments.  Continuous development of these systems to keep pace with the latest technologies and best practices.  These systems include routers, firewalls, load-balancers, firewalls, web-application firewalls.  Hardware includes Juniper MX series routers, SRX firewalls, EX and QFX series switches.


  • IDP/IPS deployment, continuous development and day-to-day operation.


  • SIEM deployment, continuous development and day-to-day operation.


  • IPSec VPN deployment.


  • SDN using OpenVswitch and OpenFlow.


  • PKI keymaster.


  • Public peering over public internet exchanges (in particular LINX peering).
  • Maintaining RIPE objects.


  • Ensure systems are configured to achieve maximum uptime, performance and availability.


  • Proactive monitoring, alerting and trending of infrastructure.


  • Automating routine maintenance, provisioning and backup systems.


  • Security auditing and reporting




  • Exceptional Junos networking technical skills (JCNIE-SEC certification desirable)


  • Deep understanding of TCP/IP and protocols especially BGP


  • IPSec VPN deployment and maintenance


  • Ability to fluently write scripts in either Perl or Python.  Knowledge of shell scripting and related tools.


  • In depth knowledge of TLS/SSL server certificates, client certificates, cipher suites and associated server hardening.


  • Full UK driving licence is essential.




  • Familiarity with monitoring systems; for example any of SNMP, MRTG, Cactus, Nagios, Zabbix.


  • Knowledge of load-balancing/content switching.


  • Knowledge of the fundamentals of TCP/IP and its routing protocols is desirable.


  • Comfortable with most aspects of Linux systems administration; for example, configuration of mail systems, system installation and configuration, fundamentals of security, installing third-party software.


Personal Attributes


  • Able to solve problems quickly and completely, displaying independent problems solving and self-direction skills.


  • Strong communication skills; capable of writing purchase justifications.


  • Able to document standard operating procedures in a concise and accurate manner.


  • Meticulous about detail.


  • Capable of working pro-actively in carrying out day-to-day role with limited need for supervision.


  • Foster good working relationships with first-line Customer Support and Development Teams.


  • Maintain good working relationships with suppliers.


  • Keep abreast of new IT technology.