Network Security Engineer

4 weeks ago

United Kingdom Ultima Full time

Job Specification: 3rd Line Network Security Support Engineer (Fully Remote - UK)

Company: Ultima

Location: Fully Remote (UK)

Position Type: Full-time


Job Overview


Ultima is seeking a dedicated and skilled 3rd Line Network Security Support Engineer to join our dynamic team. The ideal candidate will have a strong background in network security, excellent customer service skills, and a desire to continuously learn and grow in a collaborative, globally diverse environment.


Key Responsibilities


  • Provide expert-level support for network security technologies, ensuring timely and effective resolution of complex technical issues.
  • Collaborate with cross-functional teams to deliver outstanding customer service and maintain high satisfaction levels.
  • Take ownership of incidents and problems, demonstrating a proactive approach to identifying and implementing solutions.
  • Assist in the deployment and configuration of network security infrastructure, including firewalls, load balancers, and VPNs.
  • Monitor and maintain network security systems, ensuring compliance with best practices and organizational policies.
  • Document troubleshooting steps, solutions, and processes for knowledge sharing within the team.
  • Stay updated on emerging technologies and trends in network security to enhance service offerings.


Required Skills and Qualifications


  • Certifications: CCNA or CCNP certification.
  • Experience: Minimum of 3-4 years in IT, with at least 2 years in a 3rd line support role focused on network technologies.
  • Technical Skills:
  • Proficiency in Cisco Layer 2 & 3 switching and Cisco ACI.
  • Experience with routing protocols (BGP, EIGRP, OSPF).
  • Familiarity with Cisco Wireless networks.
  • Knowledge of Citrix ADC and Kemp load balancers.
  • Experience with Cisco CUCM, Unity, Jabber, Webex DI, and Teams Voice.
  • Hands-on experience with firewalls (Cisco ASA, Palo Alto, Checkpoint).
  • Understanding of proxy services, particularly Zscaler.
  • Experience with Azure core infrastructure, including firewalls (Azure Native, Palo Alto, Checkpoint), load balancers (Azure Native, Citrix ADC Netscalers), application gateways, and connectivity solutions (Express Route, VPN).
  • Soft Skills:
  • Strong attention to detail and well-organized.
  • Excellent interpersonal skills, with a passion for teamwork and collaboration.
  • Highly motivated with a strong sense of ownership and pride in delivering high-quality work.
  • Technically curious with a desire to understand how systems and services work.

Why Join Ultima?

  • Work in a fully remote environment with a flexible work culture.
  • Be part of a globally diverse team that values innovation and creativity.
  • Opportunities for professional development and continuous learning.
  • Competitive salary and benefits package.

If you are a motivated individual with a passion for network security and customer service, we want to hear from you Apply now to join Ultima as a 3rd Line Network Security Support Engineer.



Don’t meet every single requirement? Studies have shown that women and people of colour are less likely to apply to jobs unless they meet every single qualification. At Ultima we are dedicated to building a diverse, inclusive and authentic workplace, so if you’re excited about this role but your past experience doesn’t align perfectly with every qualification in the job description, we encourage you to apply anyways. You may be just the right candidate for this or other roles.

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