Security Proxy Engineer - 6 Month Contract - Inside IR35 - Hybrid in London

Security Proxy Engineer - 6 Month Contract - Inside IR35 - Hybrid in London

Contract Type: Initial 6 month contract (Inside IR35)
Rate: £500 per day Inside IR35
Location: Hybrid in London

Role Overview:

We are looking for a Senior Security Proxy Engineer to join on a 6-month hybrid contract based in London (3 days on-site). The role is responsible for the implementation, operation, and optimisation of enterprise Proxy infrastructure that enables secure access to internal and third-party services, supporting regulatory compliance, security controls, and user productivity at scale.

Key Responsibilities:

• Implement, configure, and maintain enterprise Proxy and secure web gateway services, managing policies for web access control, traffic inspection, TLS decryption, and egress IP enforcement
• Monitor Proxy service health, availability, and performance, performing root-cause analysis for incidents and participating in incident response and post-incident reviews
• Support compliance activities by maintaining logging, retention, and inspection settings, and providing Proxy logs and traffic analysis for security investigations and audits
• Implement and maintain identity-aware Proxy policies integrating with identity providers and authentication systems, supporting onboarding of new applications and SaaS services
• Maintain operational documentation, configuration standards, and troubleshooting runbooks, collaborating with network, endpoint, IAM, cloud, and security teams

What You Will Ideally Bring:

• 6+ years hands-on experience supporting enterprise Proxy or secure web gateway platforms, with strong knowledge of HTTP/HTTPS, TLS, certificates, and encryption/decryption processes
• Experience implementing and managing Proxy policies for traffic inspection, filtering, and outbound control in production environments
• Solid networking fundamentals - TCP/IP, DNS, routing, and load balancing - with proven ability to troubleshoot complex Proxy-related access and performance issues
• Experience with identity-centric access models, SSO, and device or user-based policy enforcement within Proxy environments
• Familiarity with cloud-delivered or hybrid Proxy environments, with exposure to automation or Scripting for Proxy configuration and monitoring