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Senior Security Engineer

Job description

Cloud Security Engineer

Outside of IR35 – Fully Remote

£550 to £700  a day

Are you a talented Cloud Security Engineer seeking an exciting opportunity in the realm of Financial services? Look no further! We're on the lookout for a skilled individual to join my clients dynamic team during a pivotal moment of large-scale transformation.

We are seeking a highly skilled and experienced Security Engineer to lead the deployment and integration of Zscaler and Crowdstrike solutions across the mid-sized enterprise. The successful candidate will be instrumental in enhancing our network and endpoint security, leveraging Zscaler's Zero Trust Exchange and Crowdstrike Falcon platform to safeguard our assets.

Key Qualifications:

  • Professional Experience: Minimum 7 years in network and cyber security, with a strong foundation in routing & switching, TCP/IP, and IP subnetting.
  • Zscaler Expertise: At least 3 years of hands-on experience with Zscaler Internet Access (ZIA) and Zscaler Private Access (ZPA), including policy modification, DLP, SSL decryption, and logging.
  • Identity Providers Knowledge: 2+ years of experience with Identity Providers (IdPs) and Security Assertion Markup Language (SAML).
  • Cloud Platforms Proficiency: 5 years of experience with cloud services (AWS, Azure), demonstrating a deep understanding of cloud security principles.
  • Endpoint Security: 5+ years specializing in endpoint security, with proficiency in Windows security fundamentals.
  • Technical Skills: Deep understanding of Zscaler Connector Client, ZPA/Virtual ZEN Appliances, and Certificate management. Experience with Crowdstrike Falcon and Overwatch integration is essential.
  • Security Concepts Familiarity: Knowledge of Zero Trust Network Architectures (ZTNA), Secure Access Service Edge (SASE), Data Loss Prevention (DLP), Cloud Access Security Broker (CASB), and Cloud Workload Protection Platform (CWPP).
  • Troubleshooting Expertise: Proven ability to troubleshoot complex connectivity issues involving multiple network devices, using both graphical and command-line interfaces.
  • Project Management: Demonstrated experience in managing security solution rollouts, from inception to completion, in a medium to large enterprise setting.


  • Manage and optimize Zscaler ZIA/ZPA administration portals, including firewall, web filtering, SSL decryption, and access policies.
  • Coordinate with vendors for the configuration, troubleshooting, and ongoing support of Zscaler and Crowdstrike products.
  • Diagnose and resolve complex network connectivity issues, involving a variety of security and network hardware.
  • Collaborate with remote teams to ensure the successful installation, maintenance, and troubleshooting of security infrastructure.
  • Develop and maintain standard operating procedures (SOPs) and low-level design documents to support security infrastructure.