133 security engineer jobs found

Outside IR35 Contract Role - Market Rates - ASAP Start Hybrid 2 days a week in the office (City of London) Highly Regulated Industry Security Engineer (Cyber Incident Investigation & Response) Our client is looking for a strong Security Engineer to act as the technical escalation point above their SOC function, taking ownership of complex security incidents and driving investigations through to resolution. This is a hands-on role focused on incident triage, forensic investigation, threat analysis, and remediation within a large enterprise environment. You will be responsible for investigating escalated security events, identifying indicators of compromise (IoCs), performing root cause analysis, and improving detection capabilities through engineering and threat-informed defence measures. Key Responsibilities: Investigate and lead the response to security incidents escalated from the SOC team through to containment and remediation Perform forensic analysis...

Security Engineer - Microsoft E5 Rate - £475 - £525 Outside IR35 Duration - 6 months initial Location - Milton Keynes (Twice a week on site) The role: Our client is running a major technology transformation alongside a security programme. You'll make sure new cloud, data and SaaS platforms plug into their central Microsoft security stack rather than becoming isolated point solutions click apply for full job details

Network Security Engineer (Cisco and Palo Alto) We are looking for an experienced Network Security Engineer to join a client on a 6 month contract. The environment is built on Cisco routing and switching and Palo Alto Firewalls, and you will be hands on with both, supporting, improving and securing a live enterprise network. The role is remote, with no regular onsite requirement. You must be based in or near the Aberdeen area, or be able to commute there easily, in case you are needed onsite at short notice. Responsibilities Support and maintain the Cisco routing and switching estate Manage and configure Palo Alto Firewalls, including rule changes, policy reviews and troubleshooting Work on Cisco ISE as part of the wider network access and security setup Diagnose and resolve network and security incidents, working with internal teams to keep services running Carry out network changes and improvements, following change control Produce and maintain clear documentation...

About the job Data Security Engineer (Immuta and BigID) – Remote (UK and Europe) Contract, 3 to 6 months initially | Technology (Data Security and Governance) Outside IR35 About the role You will implement data access policies, classification and privacy controls for a leading insurance client, as part of a delivery team consolidating data from several source platforms onto a modern, governed data platform. It suits a hands-on engineer who can turn privacy and regulatory requirements into enforceable technical controls, and who is comfortable explaining them to technical and business audiences. You will be expected to start contributing quickly and work independently. This role is remote and open to candidates based in the UK and Europe. What you’ll be doing Design and implement data access policies in Immuta for Snowflake, including attribute-based and purpose-based access controls Configure the Immuta and Snowflake integration, covering data...

About the job Security Engineer – Tooling & SIEM - Contract - UK/Remote   Location: Remote across the UK Employment: Contract – outside IR35 Duration: Initial 6 months (with view to extend) Rate: Flexible, dependent on experience   My client is seeking a Security Engineer to strengthen security tooling and logging across an enterprise client programme. You’ll work across endpoint security, Zscaler and identity platforms, alongside Microsoft Sentinel and Cribl, ensuring reliable data flows and effective security monitoring.   Key Responsibilities: Deploy, configure and tune endpoint security, Zscaler and identity tooling. Build and maintain Microsoft Sentinel data connectors, analytics rules and workspace configuration. Develop Cribl pipelines to route, filter and enrich security logs. Onboard log sources, troubleshoot integrations and improve detection quality. Manage...

Security Engineer (SC Cleared) £450 per day Outside IR35 9-Month Contract + Potential Extensions Remote (1 day in London per month) A leading consultancy is seeking an experienced Security Engineer to join a high-profile cyber security programme supporting critical public sector environments. This role sits at the intersection of Security Operations, SIEM engineering, and cloud-based data engineering, offering the opportunity to work on large-scale security monitoring platforms and cloud-native security solutions. The Role As a Security Engineer, you will play a key role in designing, optimising, and maintaining security telemetry pipelines while supporting SOC operations and detection engineering activities. You'll work with cloud-native technologies, SIEM platforms, and security data tooling to improve visibility, detection capability, and operational resilience across complex environments. Key Responsibilities Manage and optimise security log ingestion pipelines...

Security Engineer (SC Cleared) £450 per day | Outside IR35 | 9-Month Contract + Potential Extensions Remote (1 day in London per month) A leading consultancy is seeking an experienced Security Engineer to join a high-profile cyber security programme supporting critical public sector environments. This role sits at the intersection of Security Operations, SIEM engineering, and cloud-based data engineering, offering the opportunity to work on large-scale security monitoring platforms and cloud-native security solutions. The Role As a Security Engineer, you will play a key role in designing, optimising, and maintaining security telemetry pipelines while supporting SOC operations and detection engineering activities. You'll work with cloud-native technologies, SIEM platforms, and security data tooling to improve visibility, detection capability, and operational resilience across complex environments. Key Responsibilities Manage and optimise security log ingestion pipelines using...

Contract: Security Engineer (Tooling & SIEM) Start: ASAP (on completion of background checks) Duration: 6 Months Rate: Negotiable outside of IR35 Location: UK remote - some international travel Reference: 20916 We are looking for a Security Engineer to support a client programme. The role spans security tooling (endpoint, Zscaler and identity) and SIEM and logging (Microsoft Sentinel and Cribl). You will be hands-on, owning configuration, onboarding and day-to-day engineering across both areas. The two areas are closely linked. Good detection depends on reliable telemetry, and the tooling needs to feed the SIEM cleanly. You will be the engineer who connects them. Key Responsibilities Deploy, configure and tune endpoint security tooling, including policy management and agent rollout. Configure and manage Zscaler services, including policy, access controls and traffic steering. Implement and support identity tooling, including authentication policy,...

Contract: Security Engineer (Tooling & SIEM) Start: ASAP (on completion of background checks) Duration: 6 months Rate: Negotiable outside of IR35 Location: UK remote - some international travel Reference: 20916 We are looking for a Security Engineer to support a client programme. The role spans security tooling (endpoint, Zscaler and identity) and SIEM and logging (Microsoft Sentinel and Cribl). You will be hands-on, owning configuration, onboarding and day-to-day engineering across both areas. The two areas are closely linked. Good detection depends on reliable telemetry, and the tooling needs to feed the SIEM cleanly. You will be the engineer who connects them. Key Responsibilities Deploy, configure and tune endpoint security tooling, including policy management and agent rollout. Configure and manage Zscaler services, including policy, access controls and traffic steering. Implement and support identity tooling, including authentication policy,...

Senior Azure Security Engineer | Hybrid London (2 Days Per Week) | Outside IR35 £550pd | 5 Month Initial Contract We're currently looking for an experienced Senior Azure Security Engineer to join a Cyber Security team. Role: Senior Azure Security Engineer Location: London (2 days per week onsite, remainder remote) Duration: Initial 5 Month Contract Rate: £550 IR35: Outside IR35 The Role: You will be responsible for designing, implementing, securing and supporting Microsoft security technologies across cloud, identity, endpoint, infrastructure and security monitoring platforms. Key Responsibilities: Act as a Subject Matter Expert for Microsoft Azure security, Microsoft Sentinel, Microsoft Defender XDR and associated Microsoft security technologies Design, implement and support enterprise security controls across Azure, Microsoft Entra ID and the Microsoft security ecosystem Engineer and maintain Microsoft Sentinel capabilities Design, implement and...

About the job Join Us and Play a Key Role in a Business Critical Technology Transformation! We're looking for an experienced Infrastructure Migration Engineer to join us on an outside IR35 contract basis and help deliver a major Microsoft 365 and infrastructure migration programme. This is an opportunity to make an immediate impact within a fast-paced environment, working at the heart of a significant technology transformation. As part of this engagement, you'll use your expertise across Microsoft 365, Active Directory, Entra ID, Intune and endpoint technologies to support the migration of users, devices and services from a legacy environment into a modern, consolidated platform. You'll play a hands-on role in resolving technical challenges, improving security compliance and ensuring users can transition smoothly with minimal disruption. This role is ideal for a contractor who enjoys delivering outcomes, solving complex technical issues and working directly with...

Join Us and Play a Key Role in a Business Critical Technology Transformation! We're looking for an experienced Infrastructure Migration Engineer to join us on an outside IR35 contract basis and help deliver a major Microsoft 365 and infrastructure migration programme. This is an opportunity to make an immediate impact within a fast-paced environment, working at the heart of a significant technology transformation. As part of this engagement, you'll use your expertise across Microsoft 365, Active Directory, Entra ID, Intune and endpoint technologies to support the migration of users, devices and services from a legacy environment into a modern, consolidated platform. You'll play a hands-on role in resolving technical challenges, improving security compliance and ensuring users can transition smoothly with minimal disruption. This role is ideal for a contractor who enjoys delivering outcomes, solving complex technical issues and working directly with...

Infrastructure Engineer - Security, Resilience & Recovery Milton Keynes (Hybrid, 2 days on site) Contract - outside of IR35 Our client is seeking an experienced Infrastructure Engineer to play a key role in a major business transformation and security programme. This is a hands-on engineering position focused on delivering secure, resilient and supportable infrastructure solutions across cloud, on- click apply for full job details

Day rate: £550 - £600 Outside IR35 Location: UK - Remote We're looking for an experienced Resident Engineer with strong hands-on expertise in Prisma Access, Data Loss Prevention (DLP), Cloud Access Security Broker (CASB) and SaaS Security Posture Management (SSPM) to support a major enterprise organisation on a long-term cloud security and SASE transformation programme. This is an excellent opportunity to work within a highly technical environment, taking ownership of cloud security solutions while acting as a trusted technical adviser to a dedicated enterprise customer. Key Responsibilities: Deploy, configure, troubleshoot and optimise Prisma Access, DLP, CASB and SSPM solutions. Support enterprise SASE environments, secure remote access and cloud security integrations. Provide ongoing engineering support across Prisma Access, GlobalProtect and cloud-delivered security technologies. Implement and optimise data protection policies, SaaS security controls and...

Contract: OT Engineer Start: ASAP (on completion of background checks) Duration: 6 Months Rate: £500 - £550 outside of IR35 Location: UK remote - some international travel Reference: 20923 The OT Security Engineer provides hands-on technical evidence and verification work that underpins the architecture decisions during discovery, conducting detailed configuration and capability reviews at the comparator plant, regional hub, and shared IT/OT services. Key Responsibilities Gather evidence for each in-scope OT security capability and control, populating and maintaining the evidence register with sources. Conduct configuration and capability reviews at the comparator plant, the regional proximity hub, and shared IT/OT services. Validate regional viability per capability and control, including in-country OEM and regulatory availability and cross-border data transfer position. Provide hands-on technical verification supporting the reuse, extend, and new...

Cybersecurity Engineer - SC Cleared £500 per day outside IR35 Active SC Clearance essential Reading - hybrid working We are seeking an experienced Cybersecurity Engineer to support the development of digital engineering solutions across complex aerospace and defence programmes. You will combine cybersecurity and product security expertise with an understanding of engineering processes and tools, translating security needs into practical digital workflows, data models and integrated solutions. Working closely with security and engineering teams, you will help embed security requirements, risk assessment and assurance throughout the engineering lifecycle. Key responsibilities Capture and analyse cybersecurity and product security needs, translating them into digital solutions. Define digital workflows supporting security requirements management, risk assessment and security assurance. Support the design and implementation of security engineering...

Costello & Reyes Group Limited has been instructed by its client, a global SI, to identify a Senior Zscaler Service Transition Manager for an initial 12 month engagement. 1. Role Overview We are seeking an experienced Senior Zscaler Service Transition Manager/Operational Readiness Lead to support a major financial services organisation in accelerating its transition towards an internally owned, managed and sustainable Zscaler security service. The engagement forms part of a wider initiative to evolve existing Zscaler capabilities into a consistent, resilient and well-governed Run The Bank (RTB) operating model, with a particular emphasis on service transition, operational readiness, knowledge transfer, stakeholder alignment and the progressive insourcing of service management and operational capabilities. The successful candidate will take ownership of the end-to-end service transition process, ensuring that Zscaler services can be effectively supported, maintained,...

Principal Android Engineer (Contract, Outside IR35) A lot of Principal roles take you away from the code. Here you'll lead the technical side of a hedgehog lab team delivering a UK bank's Android app as it moves to Jetpack Compose, and still build alongside them. It's a contract outside IR35, expected to start in January 2027 and run for around 6 months. You'll work remote first, [on-site expectation]What's in it for you You'll shape how a large banking app moves to Compose, from the approach the team takes to the standards it follows. You'll lead a consultancy team that owns the delivery, with engineers who take testing and code reviews seriously. You'll add regulated banking work to your CV, which carries weight on future contracts. Who you'll be doing it for hedgehog lab is a digital product consultancy with 20 years of experience helping public and private sector organisations through digital transformation. We're B Corp and Great Place to Work...

Assignment type: 6 month contract (outside IR35) The Sandbox Platform Engineer is responsible for delivering and operationalising the TMHCC International Sandbox Platform in line with the agreed Sandbox Strategy and architecture. The engagement will build a secure, automated and supportable platform that enables teams to provision temporary environments for development, testing, proof-of-concept and technology evaluation use cases, while maintaining appropriate security, governance, cost and lifecycle controls. This is a hands-on delivery engagement focused on implementing a defined platform and associated technical deliverables. The engineer is expected to determine the appropriate technical approach within established architectural, security and technology guardrails. Scope of Services Sandbox Platform Design & Delivery Implement the Sandbox Platform in line with the approved Sandbox Strategy, roadmap and architecture. Translate the agreed target state into...

eDV Cleared DevOps Engineer (3x roles available) Cheltenham (3-5 Days Onsite) £550 - £650 per day Outside IR35 eDV Clearance Required ⏳ 12 Month Contract I'm looking for three eDV Cleared DevOps Engineers to join a long-term contract engagement delivering complex cloud and infrastructure solutions within a highly secure environment. This is an opportunity to work on technically challenging projects, leveraging modern DevOps practices to build, automate and support critical platforms used by key government stakeholders. Key Responsibilities Design, build and maintain secure, scalable cloud infrastructure. Automate deployment, monitoring and operational processes using Infrastructure as Code. Develop and manage CI/CD pipelines to support rapid and reliable software delivery. Collaborate with software engineers, architects and security teams to optimise platform performance and resilience. Support containerised environments...