Senior Network Security Engineer

Senior Network Security Engineer

Full-Time 60000 - 75000 £ / year (est.) No working from home possible
Jacobs Engineering Group Inc.

At a Glance

  • Tasks: Design secure network architectures and engineer remote access solutions for high-assurance environments.
  • Company: Join Jacobs, a leader in secure connectivity with a focus on innovation.
  • Benefits: Enjoy flexible working, comprehensive health cover, and a variety of wellbeing support options.
  • Other info: Hybrid role with excellent work-life balance and career growth opportunities.
  • Why this job: Make a real impact on secure connectivity while collaborating with diverse teams.
  • Qualifications: Experience in network security engineering and a strong understanding of Zero Trust principles.

The predicted salary is between 60000 - 75000 £ per year.

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.

Core requirements:

  • 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.
  • Hybrid connectivity spanning on-premise and cloud services.
  • Virtual networking and hypervisor-level security controls.
  • Experience in environments requiring formal security accreditation.

This role is subject to UK Security Vetting at DV (developed vetting) level. Applicants must be eligible and willing to undertake the appropriate security clearance process if not already cleared. Any offer of employment will be conditional upon satisfactory completion of the relevant clearance process.

This is a full time, permanent, hybrid (2-3 days/week) role based in Bristol, with occasional business travel across the UK. Full‑time employment at Jacobs is based on a 40‑hour working week. We place a strong emphasis on work‑life balance and flexibility, and flexi‑time is available. We offer an excellent and wide range of employee benefits including comprehensive Health Cover, Life Assurance, Income Protection, holiday buy/sell scheme, and a variety of wellbeing, family, parental and fertility support offerings, along with an enhanced contribution pension scheme.

As a disability confident employer, we will interview disabled candidates who best meet the criteria. We welcome applications from candidates who are seeking flexible working and from those who may not meet all the listed requirements for a role.

Senior Network Security Engineer employer: Jacobs Engineering Group Inc.

At Jacobs, we pride ourselves on being an exceptional employer, offering a dynamic work culture that prioritises flexibility and work-life balance. As a Senior Network Security Engineer in Bristol, you'll have the opportunity to engage in meaningful projects that enhance secure connectivity while benefiting from comprehensive health cover, life assurance, and a robust pension scheme. We are committed to employee growth and inclusivity, ensuring that all team members can thrive in their careers while contributing to impactful programmes in regulated environments.

Jacobs Engineering Group Inc.

Contact Details:

Jacobs Engineering Group Inc. Recruitment Team

We think you need these skills to ace Senior Network Security Engineer

Network Security Engineering
Secure Network Architectures
Firewall Policies
DNS Design
Traffic Control
Zero Trust Networking
Operational Risk Knowledge