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As a Senior Cyber Security Analyst, you will play a critical role in strengthening digital defences by maintaining and optimising security operations tools and processes. You'll focus on monitoring, analysing, and responding to cyber threats, while supporting the SOC team and ensuring effective incident management across the business.

Your role will involve collaborating with technology and business stakeholders, investigating security alerts, enhancing tooling performance, and supporting the delivery of continuous improvement and risk reduction initiatives. You'll also contribute to readiness for significant incidents and play a key role in proactive threat hunting and compliance reporting.

What you'll be doing as a Senior Cyber Security Analyst:

Security Incident Response: Investigate security alerts from SIEM and third-party MSSPs, triage and respond to incidents, and support root cause analysis to drive remediation.Stakeholder Engagement: Work closely with technology and business teams to communicate cyber risks, recommend actions, and ensure proportionate implementation of controls.Tool Performance & Optimisation: Monitor and enhance the performance of SecOps tools such as Microsoft Sentinel, PAM, and EDR/XDR systems, including alert tuning and automation.SOC Support & Escalation: Act as a key contact and escalation point for the SOC team, providing guidance and mentoring to support operational effectiveness.On-Call & Incident Readiness: Participate in a 24/7/365 on-call rota with our MSSP partners, supporting out-of-hours investigations and maintaining incident readiness.Threat Hunting & Continuous Improvement: Perform proactive threat hunting, recommend new security controls, and contribute to continuous improvement of SecOps processes.Compliance & Documentation: Maintain security documentation, support GDPR, NIS, and ISO 27001 compliance, and collect metrics to report on operational effectiveness and risk posture.

Base Location: Hybrid - With travel to offices 2 days per week

Working Pattern: Full Time / 36 Hours per week

What you should bring to the role:

Essential Experience:

Minimum of 3 years in a technical cybersecurity role, ideally within a large enterprise* Experience working in or with a Security Operations Centre (SOC)* Structured approach to incident triage and issue resolution* Experience remediating cyber risks in complex digital environments* Working with third-party security partners or MSSPs

Essential Technical Skills & Qualifications:

Strong knowledge of IT infrastructure, networking, and end-user computingExperience with SIEM tools, particularly Microsoft SentinelAbility to write and tune Kusto Query Language (KQL) queriesHands-on experience with PAM, MFA, and other SecOps toolsExcellent communication skills with the ability to explain technical issues to non-technical stakeholders

Desirable Skills & Qualifications:

Microsoft Security certifications (e.g. SC-200, AZ-900)Cybersecurity certifications such as CISSP, CISM, or CCSDegree in Cyber Security, Computer Science, or related fieldFamiliarity with firewalls, IDS/IPS, VPNs, and NACExperience mentoring or leading SOC analysts

GCS is acting as an Employment Agency in relation to this vacancy.

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GenAI Solution Architect - Microsoft Copilot Studio & Azure

Start Date: ASAP

Contract - Hybrid

We're working with a major UK utilities provider undergoing a digital transformation to embed Generative AI into its operational and customer-facing processes. They are seeking a seasoned GenAI Solution Architect to lead the delivery of an AI-powered automation solution using Microsoft Copilot Studio, backed by Azure services.

This is a high-profile contract focused on improving scalability, reducing operational workload, and accelerating response times in a regulated, high-volume environment.

Key Responsibilities

Lead the delivery of a production-grade GenAI solution in Microsoft Copilot Studio to automate complex, document-based reporting workflows.Transition from an Azure OpenAI proof of concept to a fully integrated solution across Azure cloud services (e.g., Azure Functions, Logic Apps, Blob Storage).Resolve platform limitations and manage technical escalations through Microsoft engineering teams-including GPU resource management and service configurations.Design safe, reliable, and predictable AI outputs through prompt architecture and LLM constraint tuning.Support integration with existing enterprise systems, retrieval pipelines, and data sources-ensuring performance, compliance, and security.Enable internal teams through documentation, knowledge transfer, and hands-on support.Proven track record designing and delivering AI/GenAI solutions in a production environment-experience with Microsoft Copilot Studio is essential.Deep knowledge of the Azure ecosystem, including AI and integration services.Strong hands-on skills in prompt engineering, LLM governance, and AI system debugging.Experience in regulated sectors (ideally energy, utilities) with a focus on security, resilience, and scalability.Excellent stakeholder management skills and ability to work under pressure in high-impact programmes.

Please send across an updated CV if this position is of interest

GCS is acting as an Employment Business in relation to this vacancy.

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AI Data Architect

Contract

Hybrid

We are recruiting on behalf of our client for a talented Contract AI Data Architect to lead the architecture of advanced AI systems, with a focus on Large Language Models (LLMs) and Agentic AI.

This contract role offers the opportunity to make a significant impact in AI-driven transformation at an enterprise level.

As the Contract AI Data Architect, you'll design and lead AI architecture strategies, working closely with senior stakeholders to ensure alignment with business goals. You will spearhead the development of AI frameworks and agentic systems, taking ownership of the high-level architecture without a need for hands-on machine learning development.

Key Responsibilities:

* Lead the definition and execution of AI architecture strategy and roadmaps

* Design scalable AI and data architecture to support LLMs and agentic AI systems

* Collaborate with senior stakeholders to align technical AI strategies with business objectives

* Provide expert guidance on AI platforms, frameworks, and integration strategies

* Ensure AI governance, scalability, and ethical standards are upheld

* Identify opportunities for innovation in the AI landscape

*This is a very data heavy position

Please send across an updated CV if this position is of interest

GCS is acting as an Employment Business in relation to this vacancy.

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As a Senior Cyber Security Engineer, you will play a key role in supporting the design, implementation, and maintenance of Cyber Security Engineering solutions, controls, and processes across IT and OT environments. You will be responsible for supporting cyber security platform administration, enhancing our security posture, and ensuring that new capabilities are securely deployed in alignment with business objectives. This includes collaborating with stakeholders, supporting compliance efforts, and helping to drive proactive cyber risk reduction.

This role requires a deep understanding of security engineering concepts, infrastructure technologies, and best practices. The ideal candidate will have strong communication skills, a solid grasp of IT and OT systems, and a passion for continuous improvement in cybersecurity operations.

What you'll be doing as a Senior Cyber Security Engineer

Support the creation of secure asset builds and system hardening capabilities across end-user computing and server environments.Collaborate with business stakeholders to align cybersecurity engineering strategies and controls with organisational goals.Develop and maintain cybersecurity engineering documentation, policies, and procedures.Implement and manage security controls across both IT and OT environments.Monitor compliance of endpoint and network security solutions, ensuring correct configurations and up-to-date signatures.Perform cloud security assessments and produce supporting documentation for secure cloud adoption.Evaluate and recommend security technologies, tools, and vendors.Investigate vulnerabilities and implement mitigation actions.Liaise with technology and business teams regarding patching and vulnerability remediation.Develop and maintain cybersecurity engineering dashboards and metrics.Provide tooling support and maintenance for Identity & Access Management, Privileged Access Management, Endpoint Security, and Network Security.Support compliance with standards and regulations, including GDPR, NIS, and ISO 27001.Monitor and optimise security engineering tool performance, implementing proactive solutions.Stay current on cybersecurity trends, emerging threats, and new technologies.

What you should bring to the role

Experience in Security Engineering, with a focus on process and control design in an enterprise environment.Strong understanding of both IT and OT systems and infrastructure.Experience in identifying and remediating cyber risks in evolving digital environments.Good knowledge of identity and access management technologies (e.g. Entra ID, CyberArk).Familiarity with a range of operating systems and security considerations across SaaS, IaaS, end-user computing, and server estate.Sound knowledge of network security technologies, including firewalls, IDS/IPS, and NAC.Strong analytical, planning, and organisational skills.Ability to communicate technical issues clearly to non-technical stakeholders.Degree in Cyber Security, Computer Science, Information Technology, Engineering, or a related field.Industry certification(s) such as CCSP, CompTIA Security+, or SC-200.

It would be great if you also had

Previous experience working in a large, complex infrastructure-based or utility organisation.Experience in systems or network administration in IT and/or OT environments.Experience leading or mentoring others in delivering cybersecurity outcomes.Security engineering vendor or product certifications such as CVA, Microsoft Certified: Azure Security Engineer Associate, Tenable, or CyberArk.

GCS is acting as an Employment Agency in relation to this vacancy.

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We currently have an exciting opportunity as an Alarms & Security Systems Manager working out of our Reading, This role is a great opportunity to join an ambitious Protective Security team with big plans for the future!

As the Alarms & Security Systems Manager, you will be responsible for our Alarm Monitoring Centre (AMC), which continuously monitors the security of our estate. The AMC is connected to these remote sites through multi-face communications to CCTV, IDS, Electronic access control to Radio pad systems, ADSL line, etc.

What you will be doing as an Alarms & Security Systems Manager

The successful candidate will line manage the team of Alarm Operatives and engage, collaborate, and influence key internal and external stakeholders. Analysing and identifying operational issues, agreeing and implementing improvements to reduce false positives, which in turn should improve the effectiveness of the AMC response.

Take responsibility for the AMC team, which runs 24/7, 365 days per year.Responsible for any projects related to the AMC or wider security team (e.g. the upgrade project), ensuring successful delivery.Responsible for Risk Management of the AMS with the ability to respond quickly to incidents.Deputise for senior members of the team and be part of the 'escalation rota'.Continuous Improvement of the AMC Operation and identify any operational/ process improvements.Responsible for the ID/access card requests for staff and contractors (printing, issuing and deletion) as per the TW policy.Hold key relationships with internal senior managers and external stakeholders. Specifically, collaborating with Operational Technology to agree and inform the strategic development of the IT Systems and security equipment.

The base location for this role will be Reading, on a Hybrid basis.

Hours of work are 36 hours a week, Monday to Friday.

What you should bring to the role

Experience Required:

Experience of working in a regulated environment, ideally the water industry, i.e., utilities, government department, critical national infrastructure, etc.Expert in physical security and associated Security Systems. (protective security, intelligence, security management, or risk management)Have experience in the design and application of physical & personnel security measures.A strong leader with negotiation and people influencing skills. Ability to communicate at all levels, present to an audience and build strong relationships.Understanding of security regulations, laws, and industry standards. (e.g. SEMD, PSG, WUKSS, NPSA)Security Institute Diploma (level 5) in Security Management.Valid membership of Professional Security Body with active membership and evidence of CPD, e.g. The Security Institute (Syl) or The Association of Security Consultants. (ASC)Other recognised security qualifications, e.g. ASIS Physical Security Professional. (PSP)

The successful candidate will be required to undertake a Counter Terrorism Check (CTC) before starting within this role.

GCS is acting as an Employment Agency in relation to this vacancy.

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As a Senior Cyber Threat Intelligence Analyst, you will play a key role in protecting the company's digital infrastructure by researching, analysing, and communicating the latest cyber threats facing the organisation. You'll evaluate global risks, provide actionable intelligence to stakeholders, and support the development of a robust threat-informed defence strategy. You'll also work collaboratively across teams to enhance our threat intelligence capabilities, inform vulnerability management, and strengthen incident response readiness.

Your role will involve maintaining threat actor profiles, managing intelligence feeds, supporting compliance, and shaping threat intelligence processes to align with our risk reduction initiatives. You'll help ensure it is well-prepared to address evolving cyber threats while contributing to the organisation's long-term security maturity.

What you'll be doing as a Senior Cyber Threat Intelligence Analyst:

Cyber Threat Assessment: Support and lead cyber threat assessments and provide recommendations to technical, managerial, and executive stakeholders.Incident Response Support: Act as part of the incident response team where appropriate and deliver cyber intelligence insights during security events.Threat Research & Intelligence: Research emerging threats, threat actors, TTPs and IoCs to support threat hunting, detection engineering and signature development.Intelligence Feeds & Dashboards: Evaluate technical intelligence feeds, ensure quality of data, and build reporting dashboards for key stakeholders.Vulnerability Management Collaboration: Work closely with the vulnerability management team to align intelligence with known exposures.Threat Actor Profiling: Maintain in-depth profiles of adversaries, detailing motivations, objectives, and behavioural patterns.External Intelligence Sharing: Establish relationships with credible external partners for mutual threat intelligence exchange.Intelligence Gap Analysis: Identify and address intelligence coverage gaps and contribute to strategic security capability development.Compliance & Documentation: Support compliance with GDPR, NIS, ISO 27001, and document threat intelligence processes and outputs.Strategic Capability Growth: Contribute to long-term improvement of threat and vulnerability management (TVM) capabilities and the broader cyber security roadmap.

Base Location: Hybrid - Flexible working with travel to Reading offices as required - 2 days a week.
Working Pattern: Full Time / 36 Hours per week

What you should bring to the role:

Essential Experience:

Minimum of 3 years in a cyber threat intelligence environmentStrong knowledge of the MITRE ATT&CK frameworkExperience researching threat actor TTPs and evaluating geopolitical, commercial, and environmental threat impactsExperience remediating cyber risks in complex and evolving digital environmentsAbility to prepare and present detailed threat reports and dashboards to senior stakeholders

Essential Technical Skills & Qualifications:

Cyber security certification(s) such as Certified Threat Intelligence Analyst (CTIA)Hands-on experience with threat modelling, OSINT tools, and vulnerability assessmentDeep understanding of adversary behaviours and threat landscape trendsStrong communication skills with the ability to convey technical risk clearly to non-technical stakeholders

Desirable Skills & Qualifications:

Experience working within the water industry or similar large infrastructure environmentsFamiliarity with legacy system vulnerabilities and OT risk managementExperience managing technical intelligence feeds and platform integrationAdditional certifications such as OSCP, OSWP, CVA, or CHECK Team Member/Leader (CTM/CTL)Previous experience contributing to cyber risk discussions with business stakeholders

What's in it for you?

Annual Leave - 26 days holiday per year increasing to 30 with the length of service (plus bank holidays).Generous Pension Scheme through AON.Access to lots of benefits to help you take care of you and your family's health and wellbeing, and your finances - from annual health MOTs and access to physiotherapy and counselling to Cycle to Work schemes, shopping vouchers and life assurance.

GCS is acting as an Employment Agency in relation to this vacancy.

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Azure Devops Engineer with strong Terraform experience

My client has an urgent requirement for an Azure Devops Engineer with a strong background in Terraform and someone who has worked on cloud migrations, migrating applications

As an Azure Devops Engineer your expectations will be to:

Design, implement, and manage Azure cloud environments.Collaborate with teams to execute end-to-end on-prem to cloud migration projects.Utilize Terraform for infrastructure automation and provisioning.Develop and maintain robust CI/CD pipelines and deployment strategies.Strong experience in Azure cloud services (Azure IaaS, PaaS, and SaaS).Proficiency in Terraform for infrastructure as code.Proven experience in cloud migration projects, specifically from on-premises to Azure.Solid understanding of DevOps practices, automation, and CI/CD pipelines.Experience with Azure DevOps, ARM Templates.Familiarity with cloud networking, storage, and security principles.Strong problem-solving and troubleshooting skills.

Please send across an updated CV if this position is of interest

GCS is acting as an Employment Business in relation to this vacancy.

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