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# Senior Network Security Engineer

- **Company:** Jacobs
- **Location:** Gloucester, UK
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** Access Network, Data Security, DevOps, Domain Name System (DNS), Network Security, Network Architecture, Network Virtualization, Remote Access Technology, Cloud Services, Zero Trust Network Access, HybridCloud, Firewall Services Module
- **Published:** September 1, 2026
- **Apply:** https://find.jobs/jobs-near-me/apply/ats-redirect/?id=2946541973-2

## About the Role

Proven experience in network security engineering within high-assurance or regulated environments.
Strong understanding of network architecture, segmentation, firewall policies, and traffic inspection.
Experience with Zero Trust networking and designing for restricted or air-gapped environments.
Security-first mindset with knowledge of operational risk and compliance constraints.

Desirable experience:
Hybrid connectivity spanning on-premise and cloud services.
Virtual networking and hypervisor-level security controls.
Familiarity with remote browser isolation technologies.
Experience in environments requiring formal security accreditation.

## Description

Senior Network Security Engineer Are you ready to shape the future of secure connectivity? At Jacobs, we are seeking a Senior Network Security Engineer to deliver high-assurance, security-critical solutions within regulated and sovereign UK contexts.

This is your opportunity to work on impactful programmes that blend traditional networking with modern secure access and hybrid cloud connectivity. Collaborate with multidisciplinary teams to solve unique connectivity challenges in restricted and isolated environments, enabling secure, resilient operations across public and private infrastructures.

What you'll do:
Design and deliver secure network architectures for controlled environments.
Engineer secure browsing and remote access solutions.
Define and implement firewall policies, DNS design, and traffic control.
Apply Zero Trust principles to network access and service exposure.
Support secure data flows and one-way transfer mechanisms.
Collaborate with DevOps and platform teams to integrate networking and security controls.
Act as a technical authority on secure connectivity and network risk.