CBSbutler Holdings Limited trading as CBSbutler

SOC Engineer (DV Cleared) Hemel Hempstead - 5 days onsite 500- 700 per day Inside IR35 We're seeking a DV-cleared Managing Security Engineer to lead the design, implementation, and optimisation of security monitoring platforms feeding into a central SOC. This is a hands-on leadership role focused on building scalable SIEM solutions and strengthening client security posture. Key Responsibilities Lead design and deployment of security monitoring tools (Elastic & Splunk) Build and optimise large-scale log ingestion pipelines and data models (ECS/CIM) Develop and tune detection rules using KQL, EQL, and SPL Drive detection engineering lifecycle aligned to MITRE ATT&CK Implement automation, CI/CD, and Infrastructure as Code for SIEM platforms Ensure platform performance, scalability, and resilience (HA/DR, clustering) Collaborate with stakeholders to assess risk and deliver security improvements Essential Skills & Experience Proven leadership in Security Engineering and client-facing environments Strong hands-on expertise with Elastic Stack and Splunk (Enterprise/ES) Advanced knowledge of SIEM operations, detection engineering, and RBA Experience with large-scale data ingestion, enrichment, and pipeline design Familiarity with automation tools, SOAR, Terraform/Ansible, and CI/CD Excellent communication, stakeholder management, and problem-solving skills This is a great opportunity to play a key role in delivering high-impact cybersecurity solutions while remaining technically hands-on. If this role is of interest, apply now!

Senior C Developer (Oracle Pro C) 430 per day Telford/hybrid (2 days per week onsite) 6 months+ SC security clearance is required for this role Join a Major HMRC Digital Transformation Programme We're looking for a skilled Senior C Developer to join a delivery team supporting one of the UK's largest and most critical government technology programmes. This is an opportunity to work on the modernisation of key HMRC systems, helping drive the transition from legacy database technologies to modern Oracle-based platforms while ensuring highly critical services remain secure, stable and performant. You'll work alongside experienced engineers, architects and database specialists, contributing to large-scale backend systems used across the public sector. What You'll Be Doing Analysing and enhancing existing C-based applications Supporting the migration from legacy Ingres databases to Oracle environments Updating application-to-database connectivity Improving performance, resilience and error handling Supporting testing activities including unit, functional and regression testing Producing technical documentation, design notes and support runbooks Collaborating within Agile delivery teams and wider programme stakeholders Essential Skills Strong commercial experience developing in C Experience supporting and enhancing backend applications Strong troubleshooting and problem-solving skills Experience working through the full software development lifecycle Ability to work effectively within Agile teams Highly Desirable Oracle Pro C Oracle PL/SQL SQL optimisation and database development Legacy application modernisation experience Government or highly regulated environments Why Apply? High-profile HMRC transformation programme Long-term programme with extension potential Opportunity to work on large-scale legacy modernisation Collaborative engineering environment Chance to develop specialist Oracle migration expertise If you're an experienced C Developer looking to work on a challenging and impactful government programme, we'd love to hear from you.

Integrated Logistics Support (ILS) Manager Location: Bristol (20% onsite / 80% remote) Security Clearance: Active SC Clearance Required Rate: 80- 84 per hour (Inside IR35) Contract Length: Initial 6 months, rolling extension expected Role Overview We are seeking an experienced ILS Manager to lead the development, delivery, and governance of Integrated Logistics Support (ILS) activities across complex aerospace and defence programmes. The successful candidate will be responsible for defining and implementing support solutions that ensure operational availability, maintainability, and through-life affordability of military air systems. Working closely with customers, engineering teams, industry partners, and defence stakeholders, the ILS Manager will ensure that supportability considerations are embedded throughout the system lifecycle, from design and development through to in-service support. This is a key role supporting the delivery of resilient support solutions for operational environments, including high-readiness and Transition to Conflict (TTC) scenarios. Key Responsibilities ILS Programme Leadership Lead the planning, management, and delivery of Integrated Logistics Support (ILS) activities across the programme lifecycle. Act as the focal point for all ILS-related activities, deliverables, and customer engagement. Develop and maintain programme ILS Plans in accordance with contractual and customer requirements. Manage ILS work packages, schedules, risks, opportunities, and resource requirements. Provide leadership and direction across multidisciplinary support engineering and logistics teams. Supportability & Support Solution Development Define and develop support solutions to achieve operational availability, maintainability, reliability, and cost objectives. Lead supportability analyses including: Level of Repair Analysis (LORA) Maintenance Task Analysis (MTA) Reliability, Availability and Maintainability (RAM) assessments Failure Modes and Effects Analysis (FMEA/FMECA) Spares and provisioning analysis Support equipment analysis Ensure supportability requirements are incorporated into system design and engineering decisions. ILS Deliverables Management Oversee the development and delivery of: Logistic Support Analysis (LSA) outputs Maintenance planning documentation Training Needs Analysis (TNA) Technical Publications requirements Provisioning data Obsolescence management plans Support and sustainment strategies Through-Life Support documentation Ensure all ILS deliverables are produced in accordance with programme milestones and contractual obligations. Standards & Governance Ensure compliance with applicable standards including: DEF STAN 00-600 ASD S-Series Specifications (S1000D, S2000M, S3000L, S4000P and S5000F) Relevant MOD and Defence Support policies Drive best practice in ILS governance, processes, and methodologies. Support continuous improvement initiatives across support engineering and sustainment functions. Essential Experience Extensive experience delivering and managing Integrated Logistics Support (ILS) within aerospace, defence, or military aviation programmes. Demonstrable experience leading ILS programmes, work packages, or support solution development activities. Strong understanding of Logistic Support Analysis (LSA) and associated ILS deliverables. Experience developing through-life support and sustainment strategies. Proven track record working with MOD, DE&S, prime contractors, and defence customers. Knowledge of DEF STAN 00-600 and ASD S-Series standards. Strong stakeholder management and customer-facing experience. Active SC Clearance.

Performance Test Analyst (x2) Location: Remote Rate: 430 per day Inside IR35 Security Clearance: Active SC Clearance Required We are currently seeking two experienced Performance Test Analysts to join a large-scale data transformation programme. This is an excellent opportunity to work on a high-profile project involving cloud technologies, complex data environments, and enterprise-scale applications. The successful candidates will be responsible for planning, executing, and analysing performance testing activities across critical systems, ensuring applications meet performance, scalability, and reliability requirements. Key Skills Required Active SC Clearance (essential) Strong experience with Informatica Proven experience working on data-focused projects Experience working within AWS environments Experience working within Azure environments Strong understanding of performance testing methodologies and best practices Responsibilities Analyse non-functional requirements, architecture documentation, and deployment designs Define performance testing scope and strategy Create and execute performance test scenarios Develop and maintain performance test scripts Perform load, stress, soak, endurance, and scalability testing Monitor application and database performance during testing Analyse results, identify bottlenecks, and provide recommendations Raise and manage defects through to resolution Produce clear test reports and performance assessments Work closely with technical and business stakeholders to ensure successful delivery Desirable Experience LoadRunner Performance Center Application and database performance monitoring Performance bottleneck identification and root cause analysis Enterprise-scale testing environments Nice to Have Gatling, JMeter, or Artillery Test strategy and planning experience Test estimation and delivery management Creation of reusable testing assets and frameworks Risk and issue management Experience working within complex transformation programmes Strong stakeholder engagement and communication skills What's on Offer? Fully remote working Competitive day rate of 430 per day (Inside IR35) Opportunity to work on a major cloud and data transformation programme Collaborative and highly skilled delivery environment Long-term contract potential

Data Engineer London / remote 429 per day inside IR35 6 months duration Active SC clearance We are seeking a Senior Data Engineer to join a high-performing team delivering large-scale cloud and data transformation programmes. This is an exciting opportunity to work on complex data platforms, leveraging modern cloud technologies and best-in-class engineering practices to build scalable, secure, and high-quality data solutions. You'll play a key role in designing and developing data pipelines, integrating data from multiple sources, and helping organisations unlock the value of their data through robust engineering and architecture. What You'll Be Doing Designing, developing, and optimising enterprise-scale data pipelines. Building cloud-native data solutions using AWS and Azure. Developing and supporting ETL/ELT processes using Informatica. Working with large datasets to ensure data quality, performance, and reliability. Collaborating with architects, developers, analysts, and business stakeholders. Supporting CI/CD, automation, and DevOps best practices. Contributing to Agile delivery teams and driving engineering excellence. What We're Looking For Essential Skills Strong experience with Informatica. Proven delivery experience on data engineering or data transformation projects. Hands-on AWS experience. Experience working within Azure environments. Strong SQL skills and understanding of modern data engineering principles. Desirable Skills Python and PySpark development. AWS services including EMR, S3, Lambda, Athena, and Redshift. Apache Spark and large-scale batch processing. Terraform, CI/CD pipelines, and Infrastructure as Code. Git/GitLab and modern software development practices. API integration and data services. Data warehousing, dimensional modelling, and dbt. Power BI familiarity. Experience working within government or highly regulated environments. What's In It For You? Opportunity to work on impactful, large-scale data programmes. Exposure to modern cloud and data technologies. Collaborative and supportive engineering culture. Ongoing professional development and certification opportunities. Flexible working arrangements and excellent career progression opportunities. If you're passionate about building scalable cloud data solutions and want to work on complex, high-profile programmes, we'd love to hear from you. If this Data Engineer role is of interest, apply now or email your CV to me at (url removed)

Senior Systems Engineer Location: Bristol (20% onsite / 80% remote) Duration: Initial 6-month contract with strong extension potential Rate: 60- 65 per hour (Inside IR35) Security Clearance: Active SC Clearance required The Opportunity We are seeking an experienced Senior Systems Engineer to support the development of complex defence and aerospace capabilities. This role offers the opportunity to work across the full systems engineering lifecycle, helping to shape future operational solutions through requirements engineering, systems architecture, and Model-Based Systems Engineering (MBSE) approaches. Working within a collaborative, multidisciplinary environment, you will engage with a wide range of stakeholders to understand operational needs, develop robust system architectures, and ensure requirements are effectively managed and traced throughout the engineering lifecycle. Key Responsibilities Capture, analyse and refine stakeholder needs into clear, structured requirements. Apply Model-Based Systems Engineering (MBSE) techniques to develop system and service architectures. Develop use cases, operational scenarios and functional models to support requirements definition and validation. Manage requirements and maintain end-to-end traceability across the engineering lifecycle. Conduct functional analysis and support architectural decision-making activities. Perform trade studies and option assessments to balance operational, technical and programme constraints. Contribute to system-of-systems and enterprise-level thinking, considering people, process, training and infrastructure dependencies. Collaborate with internal and external stakeholders across multiple disciplines and organisations. Support engineering best practice through the application of industry standards, emerging methodologies and continuous improvement. Essential Experience Proven experience in Systems Engineering within defence, aerospace or other highly regulated engineering environments. Strong background in requirements capture, analysis and management. Experience applying MBSE principles and developing system architectures. Experience generating use cases and conducting functional analysis. Understanding of requirements traceability and verification throughout the engineering lifecycle. Ability to perform structured trade studies and support evidence-based decision making. Strong stakeholder engagement and communication skills. Active SC Clearance. Desirable Experience Experience with SysML and MBSE toolsets such as Cameo, MagicDraw, Enterprise Architect or similar. Experience using requirements management tools such as DOORS or DOORS Next. Knowledge of system-of-systems engineering and defence capability development. Familiarity with industry standards and engineering best practice frameworks. What We're Looking For You will be a proactive and self-motivated Systems Engineer with excellent problem-solving skills and the ability to work effectively across diverse stakeholder groups. You will be comfortable operating in complex environments, objectively exploring problem spaces and developing practical, evidence-based solutions that deliver long-term capability value.

Senior SOC Analyst +9 months + +DV cleared role - current active DV clearance is essential +Inside IR35 + 575 - 630 a day +Corsham / Portsmouth Key Skills: ISO27001 DV Cleareance SIEM/SOAR - Elastic, Trend Micro, Tripwire, Tanium, Clearswift and SolarWinds . We are seeking an experienced Senior SOC Analyst to join a high-performing Cyber Security Operations Centre supporting critical national security environments. This is an opportunity to work at the forefront of cyber defence, leading threat detection, incident response, vulnerability management, and continuous improvement of security monitoring capabilities. As a Senior SOC Analyst, you will play a key role in protecting complex enterprise environments through the management and optimisation of security tooling, threat detection, incident response, and forensic investigations. You will work closely with internal and external stakeholders to enhance SOC capabilities, improve security visibility, and strengthen cyber resilience. Key Responsibilities Maintain and optimise SOC Protect, Detect and Respond tooling. Configure, implement and support new security monitoring technologies. Develop detection rules, correlation logic, automation scripts and response playbooks. Manage vulnerability scanning platforms and contribute to wider SOC strategy. Integrate and onboard standard and non-standard log sources into SIEM platforms. Monitor, investigate and respond to security incidents and emerging threats. Conduct forensic investigations and malware analysis, producing actionable intelligence and Indicators of Compromise (IoCs). Tune and enhance SIEM, SOAR, EDR, DLP, email security and intrusion detection technologies. Analyse attacker tactics, techniques and procedures (TTPs) using frameworks such as MITRE ATT&CK. Produce dashboards, reports and recommendations to improve security posture. Ensure adherence to operational processes, SLAs, KPIs and security policies. Drive continuous improvement across SOC processes, tooling and service delivery. Essential Skills & Experience Current Developed Vetting (DV) Clearance . Strong experience administering and tuning SIEM and SOAR platforms. Hands-on experience with technologies such as Elastic, Trend Micro, Tripwire, Tanium, Clearswift and SolarWinds . Experience in threat hunting, incident response, digital forensics and malware analysis. Strong understanding of Windows and Linux environments. Experience writing and tuning detection signatures, correlation rules and monitoring use cases. Knowledge of log collection, aggregation and analysis technologies including ELK Stack, Syslog and Windows Event Forwarding. Experience with scripting and automation using Python, PowerShell, Bash, Perl or similar. Understanding of network forensics, threat intelligence and cyber threat detection methodologies. Knowledge of ISO 27001:2022 , MITRE ATT&CK , and IT Service Management principles.

Tester (Manual & Automation) & Infrastructure + Hybrid working - requires travel to London and customer sites + Up to 50,000 per annum plus bonus, pension and training Key Skills: Background in Testing DevOps Infrastructure Hybrid Competitive Salary + Benefits Our client is a growing technology consultancy delivering secure, reliable and innovative solutions for a diverse client base. Due to continued growth and new project wins, we are looking for an experienced Tester to join our team. This is a varied role that goes beyond traditional software testing. You'll be responsible for testing applications, infrastructure, integrations and deployments, working closely with Developers, DevOps Engineers and Project Teams to ensure high-quality delivery across enterprise environments. Key Responsibilities Create and execute manual test plans. Perform integration, regression and performance testing. Test APIs, services and system integrations. Validate deployments, configuration changes and environments. Support automation of testing activities. Identify, troubleshoot and help resolve defects. Contribute to QA best practices and process improvements. Essential Skills 3+ years' testing experience within enterprise environments. Strong manual testing experience with exposure to automation. Experience testing Java and Oracle web applications. Windows 11 Evergreen testing experience. Experience with APIs, integrations and data migration testing. Familiarity with Azure, AWS or on-prem infrastructure. Experience using tools such as Postman, Jenkins and JMeter. Strong communication, analytical and problem-solving skills. Desirable ISTQB certification. Python, Bash or PowerShell scripting. Terraform or Ansible experience. Knowledge of networking, containers and CI/CD pipelines. If you're a hands-on Tester looking for a broad technical role with plenty of variety and career development opportunities, we'd love to hear from you.

Cisco ISE Network Security Engineer Location: Luton (20% onsite / 80% remote) Rate: 60- 65 per hour (Inside IR35) Duration: 6 months Security Clearance: BPSS required prior to start Overview We are seeking an experienced Cisco ISE Network Security Engineer to support the delivery of a unified Network Access Control (NAC) solution across a large enterprise environment. This project will enhance network security, standardise access control, and centralise policy management across multiple UK locations. The successful candidate will play a key role in the deployment, configuration, testing, migration, and go-live activities associated with Cisco Identity Services Engine (ISE) appliances and services. This includes implementing approved low-level designs, migrating existing NAC services, and providing technical leadership throughout the deployment lifecycle. Key Responsibilities Lead the deployment, configuration, and implementation of Cisco ISE solutions across enterprise environments. Implement Network Access Control (NAC) policies, including: 802.1X authentication MAC Authentication Bypass (MAB) Guest access and onboarding workflows Configure and support Cisco ISE hardware appliances across multiple geographically dispersed sites. Integrate Cisco ISE with: Cisco switching and wireless infrastructure Firewalls Microsoft Entra ID Active Directory Perform functional, failover, and acceptance testing. Troubleshoot complex authentication and network access issues during deployment and early-life support. Design and implement guest access solutions, including captive portals, onboarding workflows, and sponsor portals. Collaborate with security teams to ensure compliance with organisational security policies. Produce and maintain technical documentation, including implementation guides, design documents, and operational procedures. Provide both remote and onsite support during deployment and post-implementation phases. Participate in incident response activities and root cause analysis investigations. Deliver knowledge transfer sessions and technical workshops to internal IT teams. Required Skills & Experience Certifications Cisco Certified Network Professional (CCNP) preferred. CCNA candidates with extensive Cisco ISE implementation experience will also be considered. Cisco Fire Jumper Field Engineer Certification. Technical Experience Candidates must demonstrate proven experience delivering Cisco ISE solutions with the following capabilities: Cisco ISE 3.x or later. High-availability deployments across multiple sites. 802.1X authentication for wired and wireless environments. MAC Authentication Bypass (MAB). Guest access and customised onboarding workflows. Integration with existing Cisco network infrastructure. Microsoft NPS integration and support. Multiple end-to-end Cisco ISE deployments, including migration of existing NAC services and devices. Experience working within large-scale, multi-site enterprise environments. Preferred Skills Endpoint compliance and posture assessment within Cisco ISE. Device profiling and policy enforcement. Integration with third-party security solutions such as: SIEM platforms Mobile Device Management (MDM) solutions Other security tooling Soft Skills Strong analytical and troubleshooting capabilities. Excellent communication and stakeholder engagement skills. Strong documentation and reporting abilities. Ability to work independently and within cross-functional teams. Comfortable operating in fast-paced, high-pressure project environments.

Java Developer Rate: 500 - 520 / day IR35: Inside IR35 Location: Guildford Working Pattern: 3 days a week on site Clearance: Currently SC Cleared or able to obtain SC Clearance You will join a global defence technology consultancy as they deliver digital transformation to the MoD. You will join an Agile Scrum team, working on innovative Geospatial software, using the latest cloud-based technologies. You will be involved in every stage of the software development lifecycle, from initial design through development, testing, and deployment, delivering robust, scalable cloud-based services. Responsibilities Develop high-quality, readable, scalable and easily maintained code, using Java and related technologies, meeting requirements and coding standards. Develop reusable patterns and encourage innovation that will enhance team velocity. Contribute to quality assurance by writing unit and automated tests. Conduct design and code reviews to ensure code developed meets coding best practices guidelines, unit testing, security, and scalability and maintainability guidelines Ensure code is sufficiently documented and share knowledge of solutions implemented. Participate in sprint planning, reviews, and daily stand-ups in a true Agile environment, contributing to agile based estimating. Work with the scrum team to meet the sprint commitments Your skills and experience: Essential Java Cloud Services development Unit testing Desirable DevSecOps awareness using tools such as Tekton, ArgoCD, SonarQube Red Hat Openshift container platform or Kubernetes Quarkus Framework Front end development using Angular

Mechanical Systems Engineer - Rocket Propulsion Systems 35,000 - 52,000 + bonus + excellent bens. Kidderminster (Hybrid available) We're supporting a highly innovative, international engineering organisation at the forefront of advanced propulsion systems, delivering complex, safety-critical products into the defence sector. Due to continued growth, they're looking to appoint a Mechanical Systems Engineer to join their Development team. This is a rare opportunity to work across the full engineering lifecycle on technically challenging, real-world applications. The Opportunity You'll play a key role in leading the design and development of complex mechanical systems, working from initial concept through to qualification, production and in-service support. This is a hands-on, multidisciplinary role offering exposure to a wide range of engineering principles and specialist areas. Key Responsibilities Lead design evolution activities to meet customer and programme requirements Approve production drawings and ensure manufacturability to relevant standards Own and deliver DFMEA activities and support design for manufacture/cost initiatives Specify and review structural, thermal and performance analyses Plan, manage and support trials including testing and validation activities Lead formal design reviews (PDR, CDR etc.) and ensure actions are closed out Produce technical documentation including specifications, reports and compliance evidence Act as the technical interface with key customers and stakeholders Support investigations, testing and product lifecycle activities About You Degree qualified in Mechanical, Aerospace, Physics or similar engineering discipline Experience working within a product development environment (ideally 3+ years) Strong understanding of engineering fundamentals (materials, stress, manufacturing) Experience working on complex or safety-critical systems Confident communicator, able to present technical information clearly Hands-on approach with strong attention to detail Desirable Experience with DFMEA, design for manufacture/cost Exposure to regulated environments (e.g. defence, aerospace, automotive) Understanding of quality management systems (e.g. ISO9001 / EN9100) Project management experience or familiarity with planning tools Why Apply? Work on cutting-edge engineering projects with real-world impact Broad technical exposure across multiple disciplines Strong career development within a collaborative, expert-led environment Competitive salary and benefits package If you're an engineer who enjoys solving complex problems and wants to be part of something genuinely innovative, this could be the role for you. Apply now or reach out for a confidential discussion.

Java Developer Rate: 70 / hr IR35: Inside IR35 Location: Newcastle Working Pattern: 3 days a week on site Clearance: Currently SC Cleared or able to obtain SC Clearance You will join a global defence technology consultancy as they deliver digital transformation to the MoD. You will join an Agile Scrum team, working on innovative Geospatial software, using the latest cloud-based technologies. You will be involved in every stage of the software development lifecycle, from initial design through development, testing, and deployment, delivering robust, scalable cloud-based services. Responsibilities Develop high-quality, readable, scalable and easily maintained code, using Java and related technologies, meeting requirements and coding standards. Develop reusable patterns and encourage innovation that will enhance team velocity. Contribute to quality assurance by writing unit and automated tests. Conduct design and code reviews to ensure code developed meets coding best practices guidelines, unit testing, security, and scalability and maintainability guidelines Ensure code is sufficiently documented and share knowledge of solutions implemented. Participate in sprint planning, reviews, and daily stand-ups in a true Agile environment, contributing to agile based estimating. Work with the scrum team to meet the sprint commitments Your skills and experience: Essential Java Cloud Services development Unit testing Desirable DevSecOps awareness using tools such as Tekton, ArgoCD, SonarQube Red Hat Openshift container platform or Kubernetes Quarkus Framework Front end development using Angular

Software Architect - SC Cleared Rate: 70/hr Duration: Initially 12 Months Location: Guildford Working Pattern : three days a week on site Clearance: SC Clearance required You will join a global defence consultancy, delivering digital transformation to a public sector agency. Responsibilities Work with System Architects to translate business goals and high-level requirements into robust software architectures, balancing performance, security, reliability, and compliance Design scalable, flexible, and maintainable architectures for complex geospatial systems using the latest modern cloud based technologies and tools Identify technical risks early and define pragmatic mitigation strategies Work in an AGILE scrum team, collaborating closely with software engineers, testers and the Product Owner, providing clear guidance and hands-on architectural support Collaborate with development teams to select appropriate technologies, frameworks, and patterns Ensure delivered solutions align with the agreed architecture and meet both functional and non-functional requirements Produce clear, structured documentation covering architecture decisions and design rationale Contribute to and support technical and architectural reviews Your skills and experience: Strong experience designing and owning software architectures for complex systems, preferably in a cloud environment with an awareness of DevSecOps Ability to balance strategic thinking with practical delivery Confidence communicating architectural designs to both technical and non-technical stakeholders Experience working in environments with security, reliability, and compliance constraints, preferably in the geospatial domain. A collaborative mindset and passion for mentoring and supporting engineering teams

ServiceNow Developer 60- 65 per hour (Inside IR35) 12-Month Contract Hybrid Working - Soho, London We're looking for an experienced ServiceNow Developer to join a high-profile digital platform team supporting globally used content and partner management systems. This is an opportunity to work on large-scale, business-critical applications used by internal and external stakeholders worldwide. The successful candidate will be a proactive and technically strong ServiceNow professional who enjoys collaborating across multiple teams, influencing stakeholders, and delivering high-quality platform solutions in a fast-paced Agile environment. Key Responsibilities Design, develop, and implement solutions across the ServiceNow platform Provide technical expertise and best-practice guidance on ServiceNow capabilities Work closely with business and technical stakeholders to gather and refine requirements Translate business requirements into scalable technical solutions Plan, estimate, and deliver platform enhancements and new functionality Develop integrations between ServiceNow and third-party systems Participate in Agile ceremonies and contribute to continuous improvement initiatives Troubleshoot and resolve complex platform issues Essential Skills & Experience 5+ years' experience developing solutions on the ServiceNow platform Strong hands-on Service Portal development experience Excellent knowledge of: HTML CSS JavaScript AngularJS Bootstrap JSON REST/SOAP APIs HTTP protocols Experience developing ServiceNow integrations Strong understanding of ServiceNow core platform architecture Experience working within Agile delivery environments Excellent problem-solving and troubleshooting skills Strong communication and stakeholder management skills Ability to work independently and collaboratively within distributed teams Desirable Skills & Experience Experience with ServiceNow Customer Service Management (CSM) Experience working with Jira and Confluence Experience within Scrum, Agile, or SAFe delivery frameworks Knowledge of SaaS and cloud-based technologies Certifications (Desirable) ServiceNow Certified Application Developer (CAD) ServiceNow Customer Service Management (CSM) Certification Personal Attributes Natural problem solver with a proactive mindset Strong attention to detail Able to manage competing priorities and project deadlines Comfortable influencing stakeholders at all levels Strong team player with the ability to work autonomously Contract Details Rate: 60- 65 per hour (Inside IR35) Duration: 12 months Location: Hybrid working from Soho, London If you're an experienced ServiceNow Developer looking for a long-term contract on a large-scale platform programme, we'd love to hear from you.

Senior SOC Analyst +9 months + +DV cleared role - current active DV clearance is essential +Inside IR35 + 575 - 650 a day +Corsham / Portsmouth We are seeking an experienced Senior SOC Analyst to join a high-performing Cyber Security Operations Centre supporting critical national security environments. This is an opportunity to work at the forefront of cyber defence, leading threat detection, incident response, vulnerability management, and continuous improvement of security monitoring capabilities. As a Senior SOC Analyst, you will play a key role in protecting complex enterprise environments through the management and optimisation of security tooling, threat detection, incident response, and forensic investigations. You will work closely with internal and external stakeholders to enhance SOC capabilities, improve security visibility, and strengthen cyber resilience. Key Responsibilities Maintain and optimise SOC Protect, Detect and Respond tooling. Configure, implement and support new security monitoring technologies. Develop detection rules, correlation logic, automation scripts and response playbooks. Manage vulnerability scanning platforms and contribute to wider SOC strategy. Integrate and onboard standard and non-standard log sources into SIEM platforms. Monitor, investigate and respond to security incidents and emerging threats. Conduct forensic investigations and malware analysis, producing actionable intelligence and Indicators of Compromise (IoCs). Tune and enhance SIEM, SOAR, EDR, DLP, email security and intrusion detection technologies. Analyse attacker tactics, techniques and procedures (TTPs) using frameworks such as MITRE ATT&CK. Produce dashboards, reports and recommendations to improve security posture. Ensure adherence to operational processes, SLAs, KPIs and security policies. Drive continuous improvement across SOC processes, tooling and service delivery. Essential Skills & Experience Current Developed Vetting (DV) Clearance . Strong experience administering and tuning SIEM and SOAR platforms. Hands-on experience with technologies such as Elastic, Trend Micro, Tripwire, Tanium, Clearswift and SolarWinds . Experience in threat hunting, incident response, digital forensics and malware analysis. Strong understanding of Windows and Linux environments. Experience writing and tuning detection signatures, correlation rules and monitoring use cases. Knowledge of log collection, aggregation and analysis technologies including ELK Stack, Syslog and Windows Event Forwarding. Experience with scripting and automation using Python, PowerShell, Bash, Perl or similar. Understanding of network forensics, threat intelligence and cyber threat detection methodologies. Knowledge of ISO 27001:2022 , MITRE ATT&CK , and IT Service Management principles. If you'd like to discuss this Senior SOC Analyst in more detail, please send your updated CV to (url removed) and I will get in touch.

Senior Security Engineer Onsite in Bracknell & the South Eligible for DV clearance 60-70k per annum + benefits package We are recruiting for a Senior Security Engineer to join a specialist cyber security programme supporting a highly secure and business-critical environment. This is a hands-on technical role that would suit an infrastructure, security, systems or application engineer looking to develop further into architecture. You'll work across the full lifecycle of solutions, from design and implementation through to support, troubleshooting and continuous improvement. The role sits within a collaborative team of architects, engineers and support specialists delivering secure gateway technologies and associated infrastructure services. What You'll Be Doing Supporting the design, implementation and ongoing enhancement of secure gateway solutions Producing technical designs and documentation for customer-driven change requests Working closely with Solution Architects, Engineering Leads and operational support teams Supporting service availability, resilience and security improvements Troubleshooting complex infrastructure and application issues Assisting SOC and 3rd Line teams with incident investigation and resolution Managing and maintaining directory services, messaging systems and gateway technologies Creating scripts and automation to improve operational efficiency Supporting the full change lifecycle from design through deployment and support Key Technical Skills We're particularly interested in candidates with experience in several of the following areas: Infrastructure & Platforms VMware vSphere Windows Server Red Hat Enterprise Linux (RHEL) Active Directory DNS Group Policy (GPO) Remote Desktop Services (RDS) Security Trellix / McAfee technologies SIEM platforms Syslog reporting and integration Antivirus technologies TLS certificates and PKI concepts Secure gateway technologies Linux & Scripting Linux administration Shell scripting Regular Expressions (Regex) Firewall configuration and management Directories & Messaging LDAP directory services LDIF Email protocols and standards Chat and messaging technologies (XMPP desirable) Data & Integration XML JSON schema File format validation and analysis Web protocols If you are interested in discussing this Security Design Engineer role further, apply now or send your CV to me at (url removed)

Cyber Security Consultant - Incident and Vulnerability Management +6 months + +1 day a week on site in London / Preston / Birmingham - 4 days WFH +Inside IR35 + 550 - 580 a day +SC cleared role - must have current active clearance +Sole British nationals only due to nature of the project Role Description: Security Incident & Vulnerability Management Consultant (Operational Integrator / SIAM - Transition Role) UK Sole National ONLY Security Clearance required Role Summary The Security Incident & Vulnerability Management Consultant operates within the Operational Integrator (OI) function to support the transition to a multi-supplier (SIAM) model within a Defence environment. The role focuses on understanding, aligning and governing existing high-severity security incident management (S3/S4) and vulnerability management processes across suppliers. Ensuring a consistent, risk-based approach in line with client policy and regulatory requirements, supported by appropriate evidence. The outcome is a coherent, evidence-driven view of security risk, covering both active incidents and underlying vulnerabilities, with processes standardised and ready for BAU handover. This is a governance and coordination role, not a hands-on SOC, incident response, or vulnerability remediation function. Key Responsibilities Align and standardise supplier processes for high-severity incidents (S3/S4) and vulnerability management. Establish governance for incident severity, escalation, vulnerability prioritisation (CVSS, KEV, EPSS), and risk acceptance. Coordinate multiple suppliers to ensure consistent delivery and compliance. Govern major incident lifecycle activities, including escalation, communication, reporting, and assurance. Oversee vulnerability management from identification through remediation and closure. Define audit-ready evidence requirements and ensure alignment with ISMS and control frameworks. Deliver governance reporting and support transition to BAU operations. Essential Skills & Experience Experience in Cyber Security Governance, Incident Management, or Vulnerability Management. Strong understanding of incident response and vulnerability management lifecycles. Experience working within multi-supplier or SIAM environments. Ability to interpret and govern SOC and vulnerability management outputs. Knowledge of NIST CSF, NCSC guidance, or UK Government security frameorks. Experience within Defence or other highly regulated environments. Exposure to ISMS, audit, assurance, and ITIL practices.

AWS DevOps Engineer +6 months + +Inside IR35 + 575 - 610 a day +SC cleared role - sole British nationals only due to nature of the project +Fully remote working CBSbutler are supporting a large organisation delivering a critical UK public sector programme and are looking for an experienced DevOps Engineer / DevOps SME to strengthen platform delivery, automation and secure release capability. What you'll be doing Designing and improving CI/CD pipelines to enable reliable, repeatable deployments Implementing and maintaining Infrastructure as Code (IaC) for automated environment provisioning Supporting containerised platforms and orchestration to improve scalability and resilience Embedding security and compliance controls into engineering workflows (DevSecOps) Driving observability improvements across monitoring, logging and alerting Advising engineering teams on DevOps best practice and helping remove delivery bottlenecks Essential experience Typically 5-10+ years in DevOps / systems engineering / software engineering Strong hands-on Infrastructure as Code (IaC) (e.g., Terraform , Ansible , CloudFormation ) Containers & orchestration: Docker + Kubernetes Cloud platform depth: AWS / Azure / GCP (networking, compute, storage, security) CI/CD tooling: Jenkins , GitLab CI , GitHub Actions , CircleCI (or similar) Monitoring & logging: Prometheus , Grafana , ELK stack (or equivalent) DevSecOps: integrating security into pipelines and delivery (e.g., SonarQube , Snyk , OWASP practices) If you'd like to discuss this DevOps Engineer role in more detail, please send your updated CV to (url removed) and I will get in touch.

Software Architect - SC Cleared Rate: 70/hr Duration: Initially 12 Months Location: Newcastle Working Pattern : three days a week on site Clearance: SC Clearance required You will join a global defence consultancy, delivering digital transformation to a public sector agency. Responsibilities Work with System Architects to translate business goals and high-level requirements into robust software architectures, balancing performance, security, reliability, and compliance Design scalable, flexible, and maintainable architectures for complex geospatial systems using the latest modern cloud based technologies and tools Identify technical risks early and define pragmatic mitigation strategies Work in an AGILE scrum team, collaborating closely with software engineers, testers and the Product Owner, providing clear guidance and hands-on architectural support Collaborate with development teams to select appropriate technologies, frameworks, and patterns Ensure delivered solutions align with the agreed architecture and meet both functional and non-functional requirements Produce clear, structured documentation covering architecture decisions and design rationale Contribute to and support technical and architectural reviews Your skills and experience: Strong experience designing and owning software architectures for complex systems, preferably in a cloud environment with an awareness of DevSecOps Ability to balance strategic thinking with practical delivery Confidence communicating architectural designs to both technical and non-technical stakeholders Experience working in environments with security, reliability, and compliance constraints, preferably in the geospatial domain. A collaborative mindset and passion for mentoring and supporting engineering teams

QA Tester Telford (Hybrid - 2 Days Onsite per Week) 340 per day (Inside IR35) 6-Month Contract Active SC Clearance We are currently seeking an experienced QA Tester to join a high-profile programme delivering complex data and technology solutions within a secure environment. This is a hands-on testing role where you will be responsible for planning, designing, executing, and reporting on both manual and automated testing activities. You'll work closely with project teams, stakeholders, and third-party suppliers to ensure quality standards are met throughout the delivery lifecycle. The Role As a QA Tester, you will: Define and document test approaches and testing strategies. Create and maintain test coverage and traceability matrices. Analyse business and technical requirements to identify test scenarios and acceptance criteria. Design, develop, and execute manual and automated test scripts. Perform Functional System Testing and Integration Testing. Support End-to-End (E2E) testing activities. Prepare and manage test data requirements. Identify, investigate, and track defects through to resolution. Produce regular test status reports and communicate progress to stakeholders. Apply Risk-Based Testing principles to maximise test effectiveness. Collaborate with development teams, business users, and external suppliers to ensure successful project delivery. Required Skills & Experience Active SC Clearance (essential) ISTQB Foundation Certification Strong experience in Functional System Testing Experience with test automation Proficiency with testing tools such as Postman Experience working within Agile delivery environments Strong understanding of Risk-Based Testing methodologies Experience testing Data Warehouses, Data Marts, and Data Migration projects Strong SQL and database testing skills (Oracle or similar) AWS experience Experience producing Test Approach and Test Completion documentation Proficiency with Jira, Zephyr Scale, Git, or similar tools ETL testing experience Integration Testing experience Excellent communication and stakeholder management skills Desirable Experience Denodo experience Experience working on large-scale data transformation programmes Experience working in secure or highly regulated environments If this QA Tester role is of interest apply now or email your CV to me at (url removed)