21 of 21 Network Security Jobs in Bristol

Crypto Network Specialist

Hiring Organisation
MBDA
Location
Bristol, Avon, South West, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£55,000
Bristol Join our forward-thinking IM Networks team as a Crypto Network Specialist. You'll own our cryptographic estate and processes while playing an active, hands-on role in the Network Security team. Think 70-80% crypto governance/operations and 20-30% network/security … depending on experience Dynamic (hybrid) working : 2-3 days per week on-site depending on business need. Some shift working may be required. Security Clearance : DV, but you are not required to hold DV currently. Nationality: British Restrictions and/or limitations relating to nationality and/or rights ...

Operational Technology Cyber Security Engineer (Defence)

Hiring Organisation
NCC
Location
Bristol, Avon, South West, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£60,000
Operational Technology Cyber Security Engineer (Defence) NCC Bristol based with hybrid working (3-4 days per week in office) Salary: £45,084 to £63,750 per annum experience dependent plus 12.5% employer pension, private medical insurance and additional benefits package. Government Security Clearance: to the nature … business, all employment is subject to satisfactory references being obtained alongside a level of government security clearance. Closing Date: 4 th January 2026 The NCC is a not-for-profit organisation supporting manufacturing innovation across 16 sectors in the UK.Youll support defence and non-defence related work in this ...

Cyber Security Engineer – Hybrid Role in Bristol (x2) (REF50)

Hiring Organisation
RedRock Resourcing
Location
City Of Bristol, England, United Kingdom
Cyber Security Engineer – Hybrid Role in Bristol (x2) (REF50) £57.5k + Benefits + Hybrid Working (Bristol) We’re hiring two Cyber Security Engineers to join an exciting security team in Bristol. Whether you come from a pure cyber background or have strong infrastructure experience with security responsibilities, we’d love to hear from you. A market-leading organisation is recruiting two Cyber Security Engineers to join its growing security & networking function. This is a consultative, hands-on role focused on designing, implementing, and maintaining security controls across hybrid and on-prem environments ...

SC cleared. pen tester

Hiring Organisation
PROCHECKUP LIMITED
Location
Bristol, UK
Employment Type
Full-time
seeking an experienced Penetration Tester with SC Clearance to join our expanding remote team. This is an exceptional opportunity to conduct high-impact security assessments across diverse enterprise environments while maintaining work-life balance through flexible remote working. You'll contribute to ProCheckUp's ambitious expansion phase, working alongside … industry-leading security professionals on mission-critical infrastructure, applications, and network security testing for the UK's most security-conscious organizations. What You'll Do Core Responsibilities: Conduct advanced penetration testing across network infrastructure, web applications, and mobile platforms for enterprise clients Perform vulnerability assessments ...

Cyber Security Engineer x 2 – Bristol – New (REF50)

Hiring Organisation
RedRock Resourcing
Location
Greater Bristol Area, United Kingdom
Cyber Security Engineer x 2 – Bristol – New (REF50) £57.5k + Benefits + Hybrid Working (Bristol) A market-leading organisation is recruiting two Cyber Security Engineers to join its security & networking function. This is a consultative and hands-on role focused on designing, implementing, and maintaining security … across hybrid and on-prem environments to keep platforms secure, resilient, and compliant with internal policy and external regulations. The ideal candidate will embed security throughout the delivery lifecycle, working closely with infrastructure engineers, architects, and project/programme managers. You’ll define and enforce secure configuration baselines, conduct ...

Senior/Principal Security Infrastructure Engineer

Hiring Organisation
IO Associates
Location
Bristol, Somerset, United Kingdom
Employment Type
Permanent
Salary
GBP 70,000 - 90,000 Annual
Senior/Principle Security Infrastructure Engineer Permanent | £70,000 to £90,000 | Bristol (hybrid) Our client is seeking a Senior/Principle Security Infrastructure Engineer to provide technical leadership and hands-on expertise in securing enterprise infrastructure and networks. This role focuses on resilience, compliance, and integrity across … complex multi-technology environment. Key Responsibilities Design, build and maintain secure on-premises and cloud network and system architectures Harden Microsoft Server/Desktop platforms, Active Directory, and Group Policies Deploy and manage MFA solutions (YubiKey, RSA) for enterprise identity and access protection Secure virtualisation platforms (Hyper-V, VMware ...

3rd Line Infrastructure Engineer

Hiring Organisation
IO Associates
Location
Bristol, Somerset, United Kingdom
Employment Type
Permanent
Salary
GBP 45,000 - 55,000 Annual
role based between the Bristol office and remote working from home. Key Responsibilities Design and deliver secure on-premises and Azure-based infrastructure Implement network security solutions including Firewalls, VPNs and segmentation Harden Microsoft Server/Desktop platforms using Group Policy and security baselines Manage Active Directory … YubiKey/Authenticator) and access controls Deploy endpoint security, EDR, Defender and DLP solutions Perform vulnerability assessments using Tenable and drive remediation Deploy applications using on-premises tools and Intune Skills & Experience Strong experience with on-premises infrastructure and Microsoft technologies Hands-on knowledge of Active Directory, Group Policy ...

Azure DevOps Lead

Hiring Organisation
The Citation Group
Location
Bristol, UK
Employment Type
Full-time
performing team, and play a pivotal role in automating and optimizing our software development and deployment processes. You will ensure the reliability, scalability, and security of our cloud-based infrastructure while fostering a culture of continuous improvement and innovation. If you are passionate about DevOps leadership, have extensive experience … Observability: Architect and oversee monitoring and logging solutions using Azure Monitor, Application Insights, and ELK Stack; ensure real-time visibility into system performance and security across all environments. Security & Compliance Leadership: Collaborate with security and compliance teams to establish and enforce security best practices across cloud ...

Cyber Security Engineer - Bristol - Up to £64k - New Role (REF50)

Hiring Organisation
RedRock Resourcing
Location
Greater Bristol Area, United Kingdom
Cyber Security Engineer - Bristol - Up to £64k - New Role (REF50) SC eligibility is essential A leading organisation in the Bristol area requires a Cyber Security Engineer to join its growing team! Primarily working on IT projects & programmes across an IT Defence Portfolio, you will take a consultative … hands-on role in the design, implementation, and ongoing maintenance of security controls across both hybrid and on-premises IT environments. Your key responsibility will be to ensure that infrastructure platforms and services are secure, resilient, and compliant with internal policies and relevant external regulations. Suitable candidates will have ...

Senior Manager, DDOS Engineering and Development

Hiring Organisation
Oracle
Location
Bristol, UK
Employment Type
Full-time
green releases, and infrastructure-as-code. Build robust observability (metrics, logs, traces) and near-real-time telemetry/streaming pipelines for detection at scale. Security, compliance, and risk Govern threat modeling, architecture reviews, and risk remediation; ensure auditability and policy adherence for Tier 0 services. Embed security … emerging leaders; establish technical ladders, design reviews, and knowledge-sharing rituals. Cross-functional leadership and communications Partner closely with Product, SRE, Networking, Architecture, and Security to land integrated capabilities and resilient outcomes. Provide crisp executive updates on status, risks, mitigations, and outcomes. Basic qualifications 10+ years in network ...

3rd Line Engineer / Infrastructure Engineer

Hiring Organisation
Logiq
Location
Bristol, UK
Employment Type
Full-time
premises systems and solutions. You'll join our growing Managed Services team offering secure solutions to customers with an opportunity to develop your cyber security skills. The role is hybrid with a combination of working from our office in Bristol, travelling to customer sites around the UK and remote … working. Key Responsibilities Infrastructure & Network Design, implement, and maintain secure on-premises network architectures, including firewalls, VPNs, IDS/IPS, and segmentation controls. Microsoft Platform Security Design and harden Microsoft Operating Systems (Server and Desktop), configure Active Directory and Group Policies to enforce robust security baselines. ...

IT Infrastructure Engineer

Hiring Organisation
Reed
Location
Bristol, Avon, England, United Kingdom
Employment Type
Full-Time
Salary
£55,000 - £63,000 per annum, Inc benefits
infrastructure components from established low-level designs, aligning with architectural standards and project timelines. Collaborate with solution architects, programme and project managers, and cyber security engineers to ensure platforms are built to specification and ready for operational handover. Manage risks associated with installation or decommissioning, communicating with project managers … reduce risks. Plan, estimate, and schedule installation/decommissioning work, minimizing disruption and seeking necessary approvals for changes. Maintain high levels of IT security by implementing security baselines and configuration hardening in collaboration with cyber security engineers. Support test planning, design test scripts & cases, and monitor test ...

Crypto Network Specialist

Hiring Organisation
MBDA
Location
Bristol, UK
Employment Type
Full-time
provide potential candidates with a better understanding of the requirements for this role. Join our forward-thinking IM Networks team as a Crypto Network Specialist. You'll own our cryptographic estate and processes while playing an active, hands-on role in the Network Security team. Think … crypto governance/operations and 20-30% network/security operations. xxuwjjq You'll help us deliver secure, resilient connectivity across a multi-national environment. Salary: Up to £60,000 dep Please click on the apply button to read the full job description ...

Cyber Security Engineer

Hiring Organisation
Reed Technology
Location
Bristol, Avon, South West, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£60,000
REED Technology are currently recruiting for a Cyber Security Engineer for an established client in the engineering sector. This is a hybrid role based in North Bristol. The salary is up to £63,000, with a substantial benefits package, including: 12.5% employer pension contribution A generous training budget … looking for a proactive, self-starting individual with strong technical knowledge across on-prem and cloud environments, and ideally experience in areas such as: Network security, IAM, SIEM, and threat detection Compliance frameworks (e.g. NIST, ISO 27001, CIS Controls) Security automation and scripting Producing security artefacts ...

Infrastructure Engineer - Up to £64k - Bristol - New Role (REF50)

Hiring Organisation
RedRock Resourcing
Location
Greater Bristol Area, United Kingdom
Bristol - New Role (REF50) Please note, SC eligibilty is essential. A leading organisation in the Bristol area requires an Infrastructure Engineer - with a Cyber Security focus - to join its growing team. This is a hands-on, delivery-oriented role requiring strong technical skills, attention to detail, and the ability … Engineer role with circa 5 years relevant infrastructure experience. Strong knowledge of Microsoft technologies - to include both Windows Server and Microsoft Azure. Understanding of network security principles, including firewalls, segmentation, and secure remote access. Knowledge of identity and access management (IAM), including multi-factor authentication (MFA), RBAC ...

Infrastructure Engineer - Defence - SC or DV Cleared

Hiring Organisation
Searchability NS&D
Location
Greater Bristol Area, United Kingdom
Engineer (Defence) Job Type: Permanent Pay: £55,000 - £62,000 plus Extensive benefits Location: Bristol (Hybrid - 3 to 4 days per week in office) Security Clearance: Active SC or DV About The Client: We are recruiting for a world-leading research and technology organisation currently bridging the gap between … cloud-based services including IaaS, PaaS, SaaS, virtual machines, storage, networking, and identity. Undertake the planning, estimation, and scheduling of installation and decommissioning work. Security and Compliance Ensure systems are built in line with approved high-level and low-level designs. Ensure that the highest levels of IT security ...

Infrastructure Engineer - Defence - SC Cleared DV Clearable

Hiring Organisation
Searchability NS&D
Location
Bristol, Avon, England, United Kingdom
Employment Type
Full-Time
Salary
£55,000 - £62,000 per annum
cloud-based services including IaaS, PaaS, SaaS, virtual machines, storage, networking, and identity. Undertake the planning, estimation, and scheduling of installation and decommissioning work. Security and Compliance Ensure systems are built in line with approved high-level and low-level designs. Ensure that the highest levels of IT security are maintained to protect the integrity of all data. Implement security best practices across Microsoft environments and align infrastructure builds with cyber security standards such as NCSC guidance, CIS benchmarks, or Microsoft Security Baselines. Operations and Support Utilise normal operating facilities, diagnostic tools, technical manuals, test ...

Infrastructure Specialist Engineer – Bristol – New (REF50)

Hiring Organisation
RedRock Resourcing
Location
Greater Bristol Area, United Kingdom
environments, and produce clear build/operational documentation for seamless service transition into BAU. Close collaboration with solutions architects, project/programme managers, cyber security engineers and suppliers is central to the role. Flexibility is important, including occasional out-of-hours work and working from any UK site … projects require. Candidates must be eligible to obtain SC security clearance Duties and responsibilities Build and configure on-prem infrastructure (Windows Server, virtualisation, storage, networking) and deploy/integrate Azure services (IaaS/PaaS/SaaS, VMs, storage, networking, identity). Deliver to approved designs; collaborate with architects ...

F5 Infrastructure Engineer

Hiring Organisation
HOK Consulting - Technical Recruitment Consultancy
Location
Bristol, UK
Employment Type
Full-time
seeking an experienced Infrastructure Engineer with strong exposure to networking services, particularly F5 technologies, to join the F5 Delivery team within the Network Security and Traffic Management function for a major banking client. This role involves working within a sophisticated technical environment where you will be expected … devices in collaboration with the wider engineering team. Use expertise in F5 Big-IP, Jenkins, GitHub, and similar tooling to enhance and automate network infrastructure. Build and deploy technologies across both private and public cloud environments, ensuring seamless integration. Support the development of enterprise applications critical to banking operations. ...

Senior Software Engineer

Hiring Organisation
Oracle
Location
Bristol, UK
Employment Type
Full-time
Join OCI to design and deliver cloud-scale DDoS protection as part of our edge security platform. You'll design and ship high-performance detection and mitigation systems, automate operations end-to-end, and help define the technical foundation for customer-facing DDoS capabilities. Basic qualifications 6+ years building …/CD, automated testing, canarying, rollout/rollback, and configuration management. IaC expertise (e.g., Terraform) and solid cloud infrastructure fundamentals. Familiarity with DDoS or network security services and related attack/defense patterns. Solid networking knowledge: TCP/IP, IPv4/IPv6, BGP fundamentals; DNS/DHCP understanding. ...

Principal Software Engineer (DevOps)

Hiring Organisation
Oracle
Location
Bristol, UK
Employment Type
Full-time
Join OCI's Edge Security team as a Principal Engineer to architect and deliver cloud-scale DDoS protection. You'll lead design for high-performance detection and mitigation systems, drive automation and operational excellence, and set the technical direction for customer-facing DDoS capabilities across OCI's global edge. … automated testing, canarying, rollout/rollback, configuration management. Strong IaC experience (e.g., Terraform) and solid cloud infrastructure fundamentals. Domain experience in DDoS or network security services and common attack/defense patterns. Advanced networking knowledge: TCP/IP, IPv4/IPv6, BGP, routing policy; DNS fundamentals. Demonstrated operational ...