At a Glance
- Tasks: Lead the network security strategy and implement Zero Trust architecture.
- Company: Dynamic company focused on innovative network security solutions.
- Benefits: Competitive salary, flexible working options, and opportunities for professional growth.
- Other info: Mentorship opportunities and a collaborative team culture.
- Why this job: Shape the future of network security in a mission-critical environment.
- Qualifications: 10+ years in network engineering with a focus on security governance.
The predicted salary is between 60000 - 80000 £ per year.
You will own the network security strategy from the ground up, defining policy, shaping the roadmap, and driving Zero Trust and micro‑segmentation across a complex, regulated environment. You'll work shoulder-to-shoulder with the Information Security team to translate policy into enforceable technical controls, and your designs will span on-premises data centres, cloud platforms, and containerised workloads. This is not a purely operational role — we're looking for someone who has grown from hands‑on network engineering into a governance and security‑led mindset and wants to operate at an architectural level.
What you'll be doing:
- Designing and owning the end-to-end network security strategy and roadmap
- Leading the adoption of Zero Trust architecture and micro‑segmentation across traditional and containerised workloads
- Partnering closely with Information Security to define and enforce policies across all connectivity layers
- Acting as technical authority for Fortinet, Palo Alto Networks and Zscaler platforms
- Producing high‑ and low‑level designs for cloud, campus, WAN and data centre environments
- Driving governance — design reviews, standards, audit support and regulatory evidence
- Mentoring engineers and setting best practice across the network team
- Providing 3rd-line escalation support and subject‑matter expertise to senior stakeholders
What we're looking for:
- At least 10 years in regulated, mission‑critical environments — financial services background strongly preferred
- A career path from hands‑on network engineering into security governance and architecture
- Deep practical experience across Fortinet, Palo Alto Networks and Zscaler
- Proven ability to design and implement Zero Trust and network segmentation strategies
- Strong grounding in core protocols — BGP, OSPF, VLANs, VRF, VPN, VXLAN, DNS and more
- Experience securing hybrid environments including Kubernetes and OpenShift workloads
- Familiarity with automation and infrastructure‑as‑code for deploying security controls
- Relevant certifications such as PCNSE, NSE, CCNP Security or CISSP are advantageous
Senior Network Security Specialist in London employer: Computappoint
As a Senior Network Security Specialist, you will thrive in a dynamic and innovative environment that prioritises employee growth and collaboration. Our company fosters a culture of continuous learning, offering mentorship opportunities and the chance to work with cutting-edge technologies in a regulated sector. With a commitment to a Zero Trust architecture and a focus on professional development, we provide a rewarding workplace where your expertise will directly impact our security strategy and success.
