Security Support Engineer (Level.3 / Zscaler)

Xalient Group; United Kingdom; Remote; GBP 50,000 - 80,000; Full time

Job summary

A leading company in cybersecurity is seeking a Level 3 Security Support Engineer to join their Zscaler Managed Services team. The role involves advanced troubleshooting, implementation, and optimization of Zscaler security solutions. Candidates should have 5+ years of experience in network security, with expertise in Zscaler technologies and strong problem-solving skills. This position offers a competitive salary, flexible benefits, and opportunities for professional growth.

Benefits

Flexible benefits fund

25 days annual leave, plus bank holidays

1 day extra holiday for your birthday

Pension

Private medical insurance

Qualifications

• 5+ years of experience in network or cloud security engineering.
• Expertise in ZIA, ZPA, and Zscaler Client Connector.
• Strong understanding of networking protocols (TCP/IP, DNS, etc.).

Responsibilities

• Provide Level 3 support for Zscaler solutions.
• Lead root cause analysis and resolution of incidents.
• Implement and optimize Zscaler configurations.

Skills

Network Security

Cloud Security

Zscaler Technologies

Problem Solving

Communication

Tools

Wireshark

Job description

Security Support Engineer (Level.3 / Zscaler)

Xalient United Kingdom ProfessionalServices-Deployment Remote working

Company Description

Xalient specializes in the convergence and holistic management of identity, cybersecurity, and networking to deliver secure connectivity within a zero-trust framework.Offering world-class Identity solutions and services including IGA, PAM, customer identity, access enforcement and IAM solutions, Xalient also delivers transformative software-defined networking, cybersecurity technologies and managed services.

Established ten years ago to challenge traditional secure networking markets, Xalient has earned recognition as an award-winning global IT consulting and managed services provider. Headquartered in the UK, with additional offices in the USA and across Europe, Xalient boasts a client roster including industry leaders such as Kellogg’s, Avis Budget Group, WPP, and Keurig Dr Pepper.

Innovation drives Xalient's approach, exemplified by MARTINA, an AIOps tool designed to provide visibility and predictive monitoring, now empowering enterprises worldwide. Xalient helps make the world’s largest brands more secure, resilient, adaptable, and responsive to change.

Xalient was named among Europe’s Fastest Growing Companies in 2024 by Financial Times and Statista for the third consecutive year.

Position

We are seeking an experienced Level 3 Security Support Engineer to join our Zscaler Managed Services team. This role is responsible for advanced troubleshooting, implementation, and optimization of Zscaler security solutions. As a key escalation point, you will work closely with clients, internal teams, and vendors to ensure seamless security operations.

What you’ll be doing

• Provide Level 3 support for Zscaler Internet Access (ZIA) and Zscaler Private Access (ZPA) solutions.
• Troubleshoot complex issues related to connectivity, policy enforcement, authentication, and performance.
• Lead root cause analysis and resolution of critical incidents.
• Implement and optimize Zscaler configurations in alignment with security best practices.
• Collaborate with vendors and internal teams to resolve escalated issues.
• Assist in designing and deploying Zscaler solutions for new implementations.
• Develop and maintain documentation for configurations, troubleshooting procedures, and best practices.
• Conduct technical training sessions for Level 1 and Level 2 support teams.
• Monitor system performance and recommend enhancements.
• Stay updated on Zscaler product updates and industry trends.

Requirements

What you’ll need

• 5+ years of experience in network security or cloud security engineering roles.
• Expertise in Zscaler technologies, including ZIA, ZPA, and Zscaler Client Connector.
• Strong understanding of networking protocols (TCP/IP, DNS, HTTP/HTTPS, GRE, IPsec, etc.).
• Experience with authentication protocols (SAML, OAuth, LDAP, Active Directory, etc.).
• Familiarity with firewall policies, proxy configurations, and secure web gateways.
• Proficiency in troubleshooting tools such as Wireshark, packet capture, and Zscaler logs.
• Experience in integrating Zscaler with SD-WAN, VPN, and cloud environments.
• Excellent problem-solving skills and the ability to work under pressure.
• Strong communication skills with experience in customer-facing roles.

Preferred Qualifications:

• Zscaler Certified Cloud Administrator (ZCCA) or Zscaler Certified Cloud Professional (ZCCP) preferred.
• Experience with scripting and automation (Python, PowerShell, etc.).
• Knowledge of other security technologies (CASB, DLP, Zero Trust frameworks, etc.).
• Experience in a managed services or enterprise IT support environment.

Other information

Why Join Us?

• Work with cutting-edge cloud security technologies.
• Collaborative and dynamic work environment.
• Opportunities for professional growth and certifications.
• Competitive salary and benefits package.
• Flexible benefits fund
• 25 days annual leave, plus bank holidays
• 1 day extra holiday for your birthday
• Pension
• Private medical insurance

We are an equal opportunities employer and welcome applications from all suitably qualified persons regardless of their race, sex, disability, religion/belief, sexual orientation, gender reassignment, marriage and civil partnerships, pregnancy or maternity or age.