Cyber Security Jobs

408 jobs for “Network Security Researcher”

Results

CrowdStrike logo

CrowdStrike · 1001–5000 people · Public

Sr. Intelligence Software Engineer

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  • Germany
  • Remote
  • Senior

Builds and operates large-scale data processing pipelines, storage systems and presentation layers for the Intelligence team, owning systems from design and prototyping through production deployment and long-term maintenance. Works fully remotely across time zones, gathering requirements from analysts and choosing the technology stack, with existing Go and Python codebases to maintain.

AWS · GCP · EC2 +4

Last month
CrowdStrike logo

CrowdStrike · 1001–5000 people · Public

Sr. Intelligence Software Engineer

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  • Ireland
  • Remote
  • Senior

Builds and operates large-scale data processing pipelines, storage systems and presentation layers for the Intelligence team, owning systems from design through prototyping, implementation and production operations. Works autonomously on a distributed remote team, gathering requirements from analysts and choosing the technology stack, with existing Go and Python codebases to maintain.

AWS · GCP · EC2 +5

Last month

Sophos

Director, Global Partner Enablement

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  • United Kingdom
  • Remote
  • Director · manages people

Defines and scales a global partner enablement strategy across VARs, MSPs, MSSPs and distributors, covering role-based learning journeys, certifications and content lifecycle governance. Leads a matrixed global team, using generative AI and prompt-driven workflows to scale curriculum and technical content, with accountability for AI-related OKRs and enablement metrics such as partner ramp time and pipeline contribution.

Salesforce · LMS · LXP +1

10 months ago

Sophos

Senior Identity Engineer

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  • United Kingdom
  • Remote
  • Senior

Hands-on engineering role managing a modern identity stack across the full lifecycle, from passwordless authentication and adaptive access controls to identity governance and non-human identities. You will configure and operate Microsoft Entra ID, Saviynt and Active Directory directly, integrate applications via SAML, OIDC, OAuth and SCIM, and join an out-of-hours support rota.

Microsoft Entra ID · Active Directory · Saviynt +4

16 months ago

University of East Anglia

PhD Studentship: Quantum-Resilient Security for Safety-Critical Vehicular Systems

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  • Norwich
  • £20,409 pa
  • Entry level
  • Contract

Develops quantum-resilient security for connected and autonomous vehicular systems, evaluating post-quantum cryptographic techniques in resource-constrained 6G-enabled networks. Combines system modelling, simulation and algorithmic implementation to study trade-offs between security strength, computational overhead and communication latency, with adaptive key management and optimisation for low-latency, scalable deployment.

6G

Last week

QinetiQ

Cyber Security Consultant

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  • Portsmouth
  • On-site
  • £50,850 – £56,500 pa
  • Mid-level

Advises customers on cyber security vulnerability, risk, audit and compliance, applying NIST and ISO27001 frameworks to risk assessments and security assurance. Supports accreditation, governance and mitigation strategies across government, defence and critical national infrastructure, engaging stakeholders and presenting findings. Based on-site at least three days a week with customer travel required.

NIST · ISO 27001 · MITRE ATT&CK +1

SC clearance Last month

Barclays

Senior Red Team Operator

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  • Working From Home, UK
  • Remote
  • Senior
  • Permanent

Lead full-scope red team engagements spanning cyber, physical, social engineering and process attack surfaces, emulating real-world adversaries. Build phishing infrastructure and payloads, operate C2 frameworks like Cobalt Strike, and develop custom tooling and EDR evasion tradecraft. Set methodology and mentor operators while working closely with defensive teams.

Cobalt Strike · Nighthawk

Visa sponsorship 4 months ago

Saunders Scott

Network Security Engineer - Palo Alto Next Gen Firewall (SC Cleared)

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  • Gloucester
  • £70,000 – £75,000 pa
  • Mid-level

Mid-level role in a Security Support team maintaining enterprise network security, focusing on firewalls and SASE services. Day to day involves ITIL-based incident, change and problem management, controlled production changes, root-cause analysis, and vendor escalation. Hands-on work with Palo Alto and Fortinet NGFWs, routing protocols, and troubleshooting via PCAPs and logs in a regulated environment.

Palo Alto · Fortinet · Panorama +7

SC clearance Last week

Eclectic Recruitment

Network Security Engineer

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  • Stevenage
  • On-site
  • £45,000 – £50,000 pa
  • Mid-level
  • Shift work

Designs, configures and maintains network security solutions including next-generation firewalls, secure proxies and IDS/IPS, while supporting 24/7 incident response alongside SOC analysts. Involves analysing network traffic and packet captures, remediating vulnerabilities and standardising security tooling in a highly secure engineering environment.

Cisco · Check Point · Palo Alto +5

Clearance required 3 weeks ago

Exceed Cyber limited

Network Security Architect

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  • London
  • Hybrid · 1–2 days in office
  • £750 – £850 pd
  • Senior
  • Contract

Strategic advisory and architecture role supporting a major network transformation for an international professional services organisation. Involves assessing existing network security environments, defining vendor-neutral target architectures and guardrails, evaluating Zero Trust, SASE/SSE, SD-WAN and segmentation, and translating decisions into procurement-ready requirements and supplier evaluation criteria.

SASE · SSE · SD-WAN +3

2 weeks ago

ECS Resource Group

Network Cyber Security Architect

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  • Newbury
  • Remote
  • £450 – £500 pd
  • Senior
  • Contract

Security architecture and independent assurance role on a large-scale telecoms programme, focused on Privileged Access Management and securing administrative access to critical Network Management Systems. You will review network and security designs, assure HLDs, LLDs, PoCs and test strategies, and advise on segmentation, least privilege and secure management access. Requires strong IP networking (MPLS, VPNs, VRFs) plus AAA, TACACS+, MFA and RBAC expertise.

PAM · TACACS+ · MPLS +2

2 weeks ago

Square One Resources

Senior Network Security Engineer

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  • Coventry
  • Hybrid · 3 days in office
  • £455 pm
  • Senior
  • Contract · Part time

Designs, implements and maintains enterprise network security across on-prem, cloud and hybrid environments, leading Zero Trust and segmentation initiatives. Hands-on with enterprise firewalls, Azure/AWS network security, VPNs and secure remote access, while collaborating with SOC teams on detection and response. Contract role with three days per week on-site in Coventry.

Palo Alto · Check Point · Cisco Firepower +7

3 weeks ago

Erin Associates

OT Network and Security Specialist

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  • Lincolnshire
  • Hybrid
  • £55,000 pa
  • Senior

Lead the design, implementation and governance of OT network and security across multiple manufacturing sites, working alongside the Global Head of IT Operations. Act as subject matter expert for industrial networks, SCADA, PLCs, ICS and network risk assessment, securing and modernising environments while ensuring availability and resilience of business systems.

SCADA · PLC · VPN +3

Last week

Palo Alto Networks

Domain Consultant (Presales) - Strata (Network Security)

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  • London
  • Remote

Presales domain consultant providing technical expertise for network security and zero trust transformation. Partners with sales to architect on-prem, cloud and SASE/SD-WAN solutions, lead customer demos and technical validation, and respond to RFIs/RFPs. Acts as the main technical point of contact, presenting to audiences from practitioners to senior leadership.

SD-WAN · CASB · DLP +5

2 weeks ago

THAMES 360

Sales Manager – Commercial | Network Security & Cyber

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  • Basingstoke
  • On-site
  • £45,000 – £60,000 pa
  • Mid-level
  • Permanent

New-business focused sales role selling networking and cyber security solutions to commercial clients. Day to day involves heavy proactive outbound activity, including a minimum of 70 cold-call attempts daily, plus pipeline management in CRM, proposals, quotations and forecasting. Works closely with Account Directors and technical teams to drive revenue growth.

Microsoft Office · CRM

6 days ago

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