Zscaler Delivery Lead

ZSclaer Delivery Lead
Location: UK
Employment Type: Contract
Rate: £650 P/D
About the Opportunity
We are seeking a highly experienced Service Delivery Lead – Zscaler to take ownership of complex security and network transformation engagements for large enterprise and government customers.
This is a senior, customer-facing position for an individual who combines deep Zscaler expertise with strong service delivery, security architecture and programme leadership capabilities.
You will be responsible for ensuring successful delivery across the full lifecycle of Zscaler and SASE programmes — from discovery, architecture and design through implementation, migration, testing, service transition and operational handover.
The role requires someone who can operate comfortably at both the technical and executive levels, providing hands-on technical direction while managing delivery expectations, risks, dependencies and stakeholder relationships across complex global environments.
You will work closely with customer executives, security and network teams, enterprise architects, engineering functions, programme leadership and strategic technology partners.
What You'll Be Responsible For
Service & Technical Delivery Leadership
Take overall technical delivery ownership for complex Zscaler ZIA and ZPA programmes across global enterprise environments.
Drive engagements through discovery, requirements gathering, architecture, HLD/LLD, implementation, migration, testing and transition to live service.
Lead technical workstreams within wider SASE, Zero Trust and network/security transformation programmes.
Convert business, security and operational requirements into robust and scalable Zscaler solutions.
Review, challenge and approve HLDs, LLDs and technical implementation plans.
Lead technical workshops, architecture sessions, design authorities, implementation planning and migration readiness activities.
Coordinate technical delivery across multiple internal teams, customer teams and geographically distributed engineering resources.
Maintain visibility of technical risks, assumptions, dependencies and delivery blockers, ensuring appropriate ownership and resolution.
Provide technical assurance throughout the programme lifecycle and ensure delivery remains aligned with agreed architecture, scope, quality and timescales.
Contribute to the creation and improvement of delivery frameworks, technical standards, implementation approaches and reusable Zscaler design patterns.
Zscaler, SASE & Security Expertise
You will act as a senior technical authority for Zscaler and secure access transformation, with strong practical experience across:
Zscaler Internet Access (ZIA)
Zscaler Private Access (ZPA)
SASE and SSE architectures
Zero Trust / Zero Trust Network Access (ZTNA)
Secure internet and private application access
Global traffic-forwarding architectures
IPSec and GRE tunnelling
Branch, remote-user and hybrid workforce onboarding
Zscaler security policies, access controls and segmentation
Identity and access integration
Enterprise network and security architecture
Cloud, network, security and identity integration
IT/OT security requirements where applicable
Strong experience integrating Zscaler into enterprise identity and security ecosystems is required, including technologies such as:
Okta
Active Directory
Enterprise identity and authentication platforms
Identity-based access controls
Security policy and segmentation frameworks
SIEM/SOC and wider security operations environments
A significant part of this role involves working directly with senior customer stakeholders.
You will:
Establish credibility and trusted relationships with C-level, executive and senior technical stakeholders.
Represent delivery and technical workstreams at steering committees, programme boards and governance meetings.
Explain complex security and networking concepts clearly to both technical and business audiences.
Provide clear recommendations and challenge requirements where necessary.
Manage expectations around scope, architecture, delivery timelines, risks, dependencies and technical constraints.
Take ownership of senior customer escalations and drive issues through to resolution.
Provide concise, confident updates on programme health, technical progress and delivery risks.
Work alongside account and commercial teams to identify opportunities for further security and network transformation.
Build effective relationships with strategic technology partners, vendors and implementation teams.
Essential Experience
We are looking for someone who can demonstrate:
9+ years' experience across network engineering, cloud, cyber security, security architecture, technology delivery or related disciplines.
Significant experience delivering Zscaler solutions within large enterprise environments.
Strong hands-on knowledge of ZIA and ZPA.
Proven delivery experience across global Zscaler deployments.
Practical experience leading SASE and Zero Trust transformation programmes.
Strong enterprise network and security architecture knowledge.
Demonstrable experience creating, reviewing and governing HLDs and LLDs.
Experience integrating Zscaler with Okta, Active Directory and enterprise identity platforms.
Strong understanding of IPSec, GRE, traffic forwarding and enterprise connectivity architectures.
Experience developing and implementing security policies, access controls and segmentation models.
Experience coordinating complex technical programmes involving multiple engineering, security, network, cloud and identity teams.
Broad understanding of cloud, networking, cyber security and identity technologies.
Proven experience engaging directly with senior and executive-level customers.
Excellent communication, presentation, workshop facilitation and stakeholder-management skills.
Ability to work independently, make sound technical decisions and take accountability for complex delivery outcomes.
Desirable Experience & Qualifications
The following would be advantageous:
Zscaler certifications or equivalent demonstrable hands-on expertise.
Experience across SASE, SSE, ZTNA, Zero Trust and SD-WAN.
Experience delivering transformation programmes within government, financial services, transport, professional services or other highly regulated sectors.
Exposure to OT/IT convergence and industrial/operational technology environments.
Experience supporting large multinational organisations and globally distributed delivery teams.
Experience leading technical workstreams within major transformation or managed-service programmes.
Industry certifications such as CISSP, CCNP Security, CCSP, SABSA or equivalent.
Experience integrating security transformation programmes with SIEM, SOC and broader security operations capabilities.

Work arrangement
Yes