We are seeking an Advanced Network Engineer to enhance and operate an enterprise Zero Trust network environment built on Zscaler (ZIA/ZPA) and Aruba (ClearPass, switching, wireless) technologies.
With the core architecture already in place, this role focuses on:
- Maximising uptime and service reliability
- Driving automation and operational efficiency
- Improving customer experience and network performance
- Building observability and self-healing capabilities
You will be responsible for evolving the network from a functional platform into a highly resilient, intelligent, and low-touch service.
Main duties and responsibilities
Service Reliability & Uptime
- Own and improve network service availability across global sites
- Proactively identify and eliminate single points of failure
- Optimise:
- ISP performance and failover behaviour
- Zscaler traffic paths and resilience
- LAN/WLAN stability (Aruba)
- Lead root cause analysis for recurring issues and implement permanent fixes
Zscaler (ZIA/ZPA) Optimisation
- Operate and continuously improve existing ZIA/ZPA deployments
- Tune and maintain:
- Access policies
- Traffic forwarding (Client Connector, Branch Connector)
- Application segmentation (ZPA)
- Improve user experience and performance through data-driven optimisation
- Act as escalation point for complex Zscaler-related issues
Aruba & ClearPass Operations
- Manage and optimise Aruba ClearPass NAC environment:
- 802.1X authentication (wired/wireless)
- Device onboarding and profiling
- Policy enforcement improvements
- Enhance reliability of:
- Campus switching and wireless networks
- Office network standard builds
- Drive consistency and reduce operational complexity across locations
Automation & Engineering Efficiency
- Reduce manual effort by developing automation using:
- Python
- REST APIs (Zscaler, Aruba, Azure, monitoring tools)
- Automate:
- Configuration changes
- Policy updates
- User/device onboarding workflows
- Incident response actions
- Introduce Infrastructure as Code principles where applicable
Observability & Insight
- Design and improve end-to-end observability of network services
- Integrate telemetry from:
- Zscaler platforms
- Aruba infrastructure
- ISP and branch connectivity
- Enhance monitoring platforms to provide:
- Actionable alerts (reduce noise)
- Service-level dashboards
- User experience visibility
- Use data to drive proactive improvements rather than reactive fixes
Self-Healing & Proactive Operations
- Implement self-healing capabilities, including:
- Automated failover validation
- Scripted remediation of common faults
- Event-driven automation workflows
- Build closed-loop processes:
- Detect → Diagnose → Resolve → Validate
- Reduce MTTR and incident volumes through automation
Customer Experience & Service Improvement
- Focus on end-user experience as a primary success metric
- Partner with Service Desk and L2 teams to:
- Improve first-time fix rates
- Reduce escalations
- Simplify support models
- Translate technical improvements into measurable user outcomes
About you
Technical Expertise
- Strong operational experience with:
- Zscaler ZIA & ZPA
- Aruba networking (ClearPass, switching, wireless)
- Experience supporting enterprise-scale, multi-site networks
- Deep understanding of:
- Network resilience and failover design
- Identity-based access (802.1X, NAC)
- End-user connectivity troubleshooting
Automation & Development
- Proficiency in Python scripting
- Hands-on experience with REST API integrations
- Experience improving operational efficiency through automation
- Familiarity with:
- Git / version control
- Automation tooling (Desirable: Ansible, Terraform)
Observability & Monitoring
- Strong experience with monitoring/observability tools (e.g., Zabbix, Grafana, Splunk)
- Ability to define meaningful SLIs/SLOs and alerting strategies
- Data-driven approach to performance and reliability improvement
Soft Skills
- Strong focus on customer experience and service quality
- Analytical, problem-solving mindset
- Ability to simplify complex issues for non-technical stakeholders
- Structured, documentation-led approach
- Continuous improvement and ownership mentality
Desirable Skills
- Experience with:
- Zscaler Branch Connector
- Azure networking and identity integration
- SASE / SSE environments
- Understanding of ITIL service management frameworks
- Exposure to self-healing or AIOps concepts
- Foundational understanding of Agile methodologies
Why Join
- Drive the evolution from operational network to intelligent service platform
- Deliver measurable improvements in user experience and reliability
- Work with modern SASE, NAC, and automation technologies
- Influence global service standards and operational practices
About Us
We're a global law firm helping our clients achieve their goals wherever they do business. Our pursuit of innovation has transformed our delivery of legal services. With offices in the Americas, Europe, the Middle East, Africa and Asia Pacific, we deliver exceptional outcomes on cross-border projects, critical transactions and high-stakes disputes.
At DLA Piper, we understand that inclusion is not a one-size-fits-all concept. We embrace and celebrate the range of perspectives, backgrounds and experiences that each individual brings to our firm. By fostering a culture that welcomes and appreciates all aspects of our individuality, we ensure that everyone has the opportunity to succeed.
Our commitment to inclusion and positive social impact enables us to provide exceptional service to our clients and communities, while nurturing a unique and inclusive culture for all our people. We welcome the unique contribution that you will bring to our firm and actively encourage applications from all talented people – however your talent is packaged, whatever your background or circumstance and regardless of how you identify.
We are committed to being accessible and accommodating any reasonable adjustments needed throughout the recruitment process to ensure an inclusive experience for all. If you need any support or adjustments, please let us know.
Where local legislation permits, we will conduct relevant pre-engagement screening checks prior to your first day.
Apply nowRequesting Adjustments
At DLA Piper, we aim to make meaningful progress and build an inclusive culture where anyone affected by disability, neurodiversity or a long-term health condition has an equitable and accessible chance of success. If you think you may need adjustments or additional support to enable you to participate in our recruitment process, please contact our Recruitment team and we will be happy to support you.
Agile Working
We recognise that people have responsibilities and interests outside of their career and that as a business, we all benefit from working flexibly. That’s why we are open to discussing with candidates the different ways in which we are able to support requests for agile working arrangements.
Pre-Engagement Screening
In the event that we make an offer to you, and where local legislation permits, we will conduct pre-engagement screening checks that may include but are not limited to your professional and academic qualifications, your eligibility to work in the relevant jurisdiction, any criminal records, your financial stability, and references from previous employers.
Our hiring approach
Our hiring approach enables us to learn about the professional and person you are, and gives you the opportunity to learn about us. Your recruitment experience can differ depending on the type of role you are interviewing for. You will always meet your direct Line Manager for your role, as well as peers and close collaborators for the position. For some of our roles we may also use assessment tools, practical exercises, and panel presentations. Your Recruitment Business Partner will inform you of the recruitment process at the start of any recruitment process, but please let us know if you have any questions prior to making an application.
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