Senior Security Engineer - SSE & Zero Trust (Hybrid London)

Harrington Starr; Greater London; Hybrid; GBP 80,000 - 110,000; Full time

Benefits offered by this job

Hybrid work model

Job summary

Harrington Starr in London is seeking a Senior Security Engineer to join a growing Managed Security Services team on a hybrid basis. You will work across SSE, Zero Trust, exposure management and cyber asset visibility to strengthen customer security postures.

The role is hands-on, involves deploying and operating enterprise security platforms, running vulnerability programmes, and producing executive security reports while developing Microsoft Security capabilities.

Qualifications

• Strong hands-on experience with enterprise security platforms.
• Excellent SSE experience across SWG, CASB, DLP, ZTNA and RBI.
• Netskope experience is highly desirable.
• Experience across vulnerability and/or exposure management.
• Strong enterprise security operations background.
• Experience within managed security services or multi-tenant environments.
• Good understanding of Zero Trust and identity-based access control.
• Strong troubleshooting and customer-facing communication skills.

Responsibilities

• Deploy, configure and operate enterprise security platforms across customer environments.
• Manage BAU operations, platform health, upgrades, policy and configuration changes.
• Operate and optimise SSE capabilities including SWG, CASB, DLP, ZTNA and RBI.
• Support Zero Trust and conditional access initiatives.
• Run exposure and vulnerability management programmes aligned to CTEM.
• Identify, validate and prioritise vulnerabilities based on real-world exploitability and business impact.
• Use CAASM platforms to identify asset visibility and security control gaps.
• Troubleshoot complex cloud, identity, device and network access issues.
• Produce customer-facing security reports and present findings during service reviews.
• Develop runbooks, operational documentation and contribute to continuous service improvement.
• Help develop the organisation’s growing Microsoft Security capability.

Skills

SSE expertise

ZTNA

CASB

DLP

RBI

Vulnerability management

Multi-tenant environments

Customer-facing

Tools

Netskope

Job description

Harrington Starr in London is seeking a Senior Security Engineer to join a growing Managed Security Services team on a hybrid basis. You will work across SSE, Zero Trust, exposure management and cyber asset visibility to strengthen customer security postures.

The role is hands-on, involves deploying and operating enterprise security platforms, running vulnerability programmes, and producing executive security reports while developing Microsoft Security capabilities.