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Cyber Security Assurance Manager

Contract: 6 Months
Location: London (1 day per week onsite / flexible)
Day Rate: Competitive
Start: ASAP

We're supporting a large, international enterprise in the search for an experienced Cyber Security Assurance Manager to lead a cyber assurance and control effectiveness programme across a complex global environment.

This is a senior second-line cyber security position, responsible for independently assessing the effectiveness of security controls, driving assurance activity, overseeing technical reviews, and providing risk-based insight to senior stakeholders. The successful contractor will lead a small team while acting as a trusted adviser across cyber security, technology, audit and risk functions.

The Opportunity

You will own the planning and delivery of a risk-based technical assurance programme, providing independent oversight of security controls across infrastructure, cloud, identity, applications, vulnerability management, data security and incident response capabilities.

The role combines technical cyber security expertise, assurance methodology, stakeholder engagement and leadership. You'll engage with senior business and technology leaders, deliver actionable reporting, challenge control weaknesses, and drive continuous improvement across the control environment.

Key Responsibilities

Lead the delivery of a large-scale cyber technical assurance programme.Manage and mentor a team of Technical Assurance Analysts.Conduct independent second-line assessments of cyber security controls and control effectiveness.Review technical evidence, validate findings and assess both design and operating effectiveness of controls.Oversee control testing activities across cloud, infrastructure, networks, applications and identity environments.Drive continuous controls monitoring, automated assurance and data-driven reporting capabilities.Track remediation activities and ensure significant findings are appropriately managed and escalated.Develop executive-level reporting, dashboards and cyber risk metrics.Partner with Cyber Security, Internal Audit, Risk, Compliance, Legal and Technology teams to improve security outcomes.Act as a subject matter expert on cyber assurance, risk and control effectiveness.

Required Experience

Strong background in Cyber Security Assurance, Technology Risk, IT Audit, Security Testing or Cyber Risk Management.Experience leading assurance reviews within large, complex enterprise environments.Deep understanding of second-line assurance and control effectiveness assessment.Experience assessing technical controls across cloud, infrastructure, identity, networks and applications.Strong working knowledge of frameworks such as:ISO 27001NIST Cybersecurity FrameworkNIST 800-53CIS ControlsMITRE ATT&CKExperience producing board-level reporting and translating technical findings into business risk.Excellent stakeholder management skills, with the ability to challenge constructively and influence senior leaders.

Desirable Experience

Continuous Controls Monitoring (CCM) platforms.Automated assurance and evidence collection.PowerShell, Python or API-based automation.Cloud security assurance and modern identity controls.CISSP, CISM, CISA, CRISC, CCSP or ISO 27001 Lead Auditor certifications.

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

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Dynamics 365 CE / CRM Technical Consultant - 3 Month Contract

Location: London Onsite
Contract: 3 months

Role: Dynamics 365 CE / CRM Technical Consultant

We are looking for an experienced Dynamics 365 CE / CRM Technical Consultant to deliver a new Microsoft Dynamics 365 CE Sales solution on an initial 3-month contract.

This is a hands-on delivery role where you will take ownership of the project from requirements gathering and solution design through to configuration, CRM migration, integration, testing, UAT, training and go-live.

The successful consultant will need strong experience delivering Dynamics 365 CE Sales implementations and CRM migrations within tight project timescales.

Key Responsibilities

Lead requirements and discovery workshops with business and technical stakeholdersDesign and configure Dynamics 365 CE SalesConfigure accounts, contacts, leads, opportunities, activities and sales pipelinesConfigure forms, views, business rules, security roles and business process flowsDesign and manage the Dataverse data modelDeliver migration from the existing CRM into Dynamics 365 CEManage data mapping, cleansing, deduplication, transformation and reconciliationDevelop and test end-to-end sales processes and automationSupport integrations with Zoom and Google Cloud Platform (GCP)Manage configuration, integration, regression and migration testingLead/support UAT and defect resolutionCreate dashboards and reporting, including Power BI where requiredDeliver user training, documentation and technical handoverSupport go-live and post-migration validation

Essential Experience

Minimum 3 years' hands-on Dynamics 365 CE Sales implementation experienceMinimum 3 years' CRM migration experience into Dynamics 365 CE SalesStrong Dynamics 365 Sales configuration experienceStrong knowledge of Microsoft DataverseCRM migration, data mapping and data cleansingBusiness Process FlowsSecurity roles and access controlsDynamics solution deploymentRequirements gathering and solution designIntegration and API experienceEnd-to-end testing and UATExperience delivering user training and technical handoverAbility to independently deliver within a fixed 3-month project timeframe

Desirable

Power AutomatePower BIZoom integrationGoogle Cloud Platform / GCPMicrosoft Power PlatformRelevant Microsoft Dynamics 365 / Power Platform certificationsExperience within sport, hospitality or another fast-paced commercial environment

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

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

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Senior Cloud & Azure Infrastructure Engineer - Azure / Intune / Terraform / VMware / M365

Location: London onsite

3 months - Inside IR35

We are looking for an experienced Senior Cloud & Infrastructure Engineer to join a technology team working across a hybrid Microsoft Azure and on-premise infrastructure environment.

This is a hands-on contract role with a strong project focus, including the migration of VMware workloads into Azure and Hyper-V, developing infrastructure-as-code using Terraform and GitHub Actions, and strengthening the wider Microsoft cloud, networking and security estate.

Key Responsibilities

Support the migration of VMware workloads to Azure IaaS and Hyper-VDesign and manage Azure networking including VNets, peering, NSGs, firewalls and hybrid connectivityDevelop and maintain Terraform modules for Azure infrastructureBuild and manage CI/CD pipelines using GitHub ActionsAdminister Windows Server, Active Directory, Group Policy, DNS and DHCPSupport and administer Hyper-V and VMwareManage Microsoft 365, including Exchange Online, Teams, OneDrive and SharePointManage Entra ID, Conditional Access, MFA and PIMSupport Intune, Purview, Varonis and AvePointTroubleshoot Cisco networking across switches, VLANs, routing and wirelessMaintain cloud security, governance, policies and infrastructure standards

Essential Experience

Strong hands-on Microsoft Azure infrastructure experienceAzure networking: VNets, peering, NSGs, firewalls and hybrid connectivityStrong Terraform / Infrastructure-as-Code experienceVMware vSphere/vCenter and migration experienceHyper-V administration and deploymentWindows Server, Active Directory, Group Policy, DNS and DHCPMicrosoft 365 and SharePoint OnlineEntra ID, MFA, Conditional Access and PIMMicrosoft IntuneCisco networking, VLANs, switches and troubleshootingGitHub / GitHub Actions / CI/CDExperience of cloud migration projects, ideally using Azure Migrate

Desirable

Microsoft PurviewVaronisAvePointAzure Landing ZonesPowerShell / Azure CLIAZ-305, MS-102, SC-400, CCNA or CCNP certifications

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

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Digital Forensics Investigator

Digital Forensics | Cyber Investigations | Incident Response

Are you passionate about uncovering digital evidence, investigating cyber incidents, and helping organisations understand what really happened during a security event?

We're looking for a Digital Forensics Investigator to support complex cyber investigations, incident response activities, and evidence-led enquiries. This role offers the opportunity to work across endpoints, cloud environments, mobile devices, and enterprise security platforms, applying forensic techniques to identify, preserve, analyse, and present digital evidence.

You'll work closely with internal investigation teams, security stakeholders, legal professionals, and law enforcement to ensure investigations are thorough, accurate, and conducted in accordance with appropriate evidence-handling procedures.

What You'll Be Doing

Conduct digital forensic investigations, collecting and analysing electronic evidence to support internal investigations, legal proceedings, and cybersecurity incident response.Identify, acquire, preserve, and analyse digital evidence across laptops, servers, mobile devices, cloud platforms, and enterprise environments.Investigate suspicious activity, unauthorised access, compromised accounts, data breaches, and other potential security incidents through forensic artefacts and log analysis.Analyse Microsoft 365 and other cloud-based environments to identify relevant activity, establish timelines, and support attribution of user or threat actor actions.Use digital forensic and eDiscovery tools to investigate incidents, refine large datasets, and develop effective evidence-collection strategies.Support incident response activities by analysing logs, endpoint telemetry, network traffic, malware, and other digital artefacts.Maintain the integrity, confidentiality, and admissibility of evidence through accurate documentation and strict chain-of-custody procedures.Prepare clear, factual forensic reports documenting investigative processes, findings, analysis, and conclusions.Collaborate with internal security, compliance, ethics, and investigations teams, as well as external legal advisers, law enforcement, and technology vendors.Contribute to the continuous improvement of forensic procedures, investigation methodologies, and evidence-handling protocols.Keep up to date with emerging cyber threats, forensic techniques, industry standards, and developments in digital investigation practices.

What We're Looking For

Education and Qualifications

An undergraduate qualification in IT, computer science, digital forensics, or a related discipline - or equivalent relevant experience.Professional certifications in information security, digital forensics, or incident response are advantageous.A postgraduate qualification in computer science, digital forensics, or a related field would be beneficial.

Technical Experience and Knowledge

Strong understanding of the digital forensic lifecycle: identification, preservation, collection, examination, analysis, documentation, and presentation of evidence.Knowledge of the ACPO Good Practice Guide for Digital Evidence and its application to forensic investigations.Practical experience using digital forensic and eDiscovery tools such as Magnet AXIOM, Cellebrite, FTK, EnCase, Nuix, Relativity, or Paladin.Strong working knowledge of Microsoft 365, cloud platforms, and log analysis, including the ability to investigate suspicious or unauthorised account activity.Experience working with Endpoint Detection and Response (EDR) technologies and analysing endpoint telemetry.Understanding of SIEM platforms, security monitoring, IDS/IPS, firewalls, and network traffic analysis.Experience collecting and analysing evidence from Windows, Linux, and macOS systems, as well as mobile devices, servers, and cloud environments.Knowledge of incident response methodologies, cyberattack techniques, threat actors, malware behaviour, and digital artefact analysis.Understanding of networking fundamentals, including TCP/IP, routing, subnetting, network architecture, and common network protocols.Familiarity with cloud security, encryption, data loss prevention (DLP), and relevant cybersecurity standards and regulations.

Essential Skills and AttributesStrong analytical thinking and the ability to connect evidence from multiple systems to establish an accurate sequence of events.Excellent attention to detail and a methodical, evidence-led approach to investigations.Ability to develop effective evidence-collection and eDiscovery strategies based on the nature of an allegation or incident.Strong written communication skills, with the ability to produce clear, objective, and defensible forensic reports.An understanding of legal and jurisdictional considerations relating to digital evidence, investigations, and data breaches.High levels of integrity, discretion, and professionalism when handling sensitive or confidential information.Ability to manage competing priorities, work collaboratively with multidisciplinary teams, and communicate technical findings to non-technical stakeholders.A proactive approach to problem-solving, continuous learning, and improving investigative processes.

Why Consider This Opportunity?This is an opportunity to apply your digital forensic expertise to meaningful cyber investigations, working across a broad range of technologies and evidence sources. You'll play an important role in uncovering facts, supporting incident response, protecting organisational interests, and ensuring that digital evidence is handled to the highest professional standards.

Interested in learning more?
If you have a background in digital forensics, cyber investigations, or DFIR and enjoy solving complex technical challenges through evidence-based analysis, we'd love to hear from you.

Apply today or get in touch for a confidential conversation.

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

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Job Description

The Digital Ad Operations team is looking for a Media Planning Executive to develop and coordinate digital ad sales media campaigns across international portfolio. The Executive will report to the Digital Planning Manager and will support on response to client brief, forecasting and managing inventory availability, building media plans, monitoring campaign bookings and coordinating with central and international sales teams and support teams.

The Digital Ad Operations team sits within the International Ad Sales organization. The Media Planning Executive will be part of a talented team of individuals located in London and Paris. The role of this team is to support the 15 international sales teams in securing digital advertising revenue from external clients/brands across the globe.

To be successful as a Digital Media Planning Executive you should be highly organised and detail orientated, be confident in Excel and working with numbers, be proactive and confident in navigating a fast-paced sales environment and be a quick learner. Previous experience in Media either at a media owner, agency or in-house client side is advantageous but not essential, a successful candidate will show an interest and willingness to learn.

RESPONSIBILITIES

Be the principal point of contact for your assigned sales teams, supporting them with general information, strategic recommendation and tailored response-to-brief media plans.Build compelling media plans which consider client's objectives, budgets and requirements, recommending products and solutions tailored to their needs to secure investment.Coordinate responses with local inventory teams to ensure all digital media plans built are compliant with local commercial rules, pricing and inventory availability.Create inventory forecasts on the Ad Servers or data dashboards (i.e., Looker, GAM, Freewheel) to inform media planning of the available capacity for the media plan.Pass confirmed campaigns to the traffic managers to ensure a seamless transition between pre/post sale, making sure the traffic team have all the information and access to setup the campaign to go live.Monitor and track the digital pipeline, checking campaign statuses with the sales teams on a regular basis to make sure we have an up to date and complete view of all prospective, booked and cancelled deals to inform inventory availability and other parties.Maintain close working relationships with the sales teams, traffic managers and inventory managers to keep all parties informed and up-to-date on the digital sales pipeline.

QUALIFICATIONS

Highly organised and detail orientated,A proactive self-starter with initiative, drive and a solution mindset,A quick learner, comfortable in a dynamic environment and effective at multitasking,Confident in Excel, including formulas, currencies, calculations, tables, data visualisation,Confident in communicating strategic recommendation and expertise in written and verbal format,Fluent in English, second language beneficial (principally French, Spanish, German, Cantonese) .

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

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AI Copilot Developer - Power Apps - Power platform - Banking - Hybrid

Role - AI Copilot Developer

Rate - £490 per day (Inside IR35)

Duration - 6 months with very likely extension

Location - Hybrid / Canary Wharf - 3 days per week in a Canary Wharf office

Tech Stack

CopilotPowerappsPower platformJavascript

Role

Development and support of low code Business applications using Power platform, M365, C#, JavaScript. You will collaborate closely with business analysts, business users and stakeholders to understand requirements, design innovative solutions, and bring them to life through development, testing, and deployment.

Tasks

Design, develop, test, and deploy AI-powered solutions using Microsoft Copilot Studio, Power Platform, and Microsoft 365 technologies.Build and maintain intelligent agents, conversational AI experiences, and automated business processes.Integrate AI solutions with enterprise systems, including Dataverse, SharePoint, Power BI, Microsoft Fabric, SQL, and other business applications.Collaborate with business stakeholders to gather requirements, identify AI opportunities, and deliver innovative solutions that improve efficiency and user experience.Apply best practices for security, governance, compliance, and Responsible AI to ensure enterprise-grade solutions.Support solution architecture, documentation, testing, deployment, and ongoing maintenance activities.Contribute to continuous improvement by identifying opportunities to leverage AI, automation, and low-code technologies to enhance business processes and decision-making.Provide technical support, troubleshooting, and knowledge sharing across AI, Copilot, and Power Platform initiatives

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

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Role - Oracle Financials Architect

Rate - £750 per day

Duration - 6 months with very likely extension

Location - Hybrid / London - 50% in the office in Liverpool Street, London

Overview

An international banking organisation is seeking an experienced Finance Architect & Oracle ERP Lead to support and enhance its Oracle Financials landscape across Europe.

This is a hands-on leadership role, combining finance systems expertise, solution architecture and stakeholder management. The successful candidate will have strong recent experience with Oracle E-Business Suite (EBS) and Oracle Financials, together with a solid understanding of finance and accounting processes.

This role is best suited to someone who remains close to delivery and solution design, rather than a purely strategic or Enterprise Architecture professional.

Key Responsibilities

Act as the technology lead for Finance applications across the region.Partner with Finance stakeholders to gather requirements and deliver Oracle-based solutions.Lead the support, enhancement and rollout of Oracle Financials applications.Provide hands-on solution design, configuration and troubleshooting expertise.Manage Oracle Financials integrations and interfaces.Lead and mentor a team of Oracle SMEs.Ensure data quality, controls and governance across Finance systems.Drive process improvements and automation across Finance operations.Facilitate architecture, governance and design authority sessions.

Essential Experience

15+ years working with Oracle Financials.Strong recent experience with Oracle EBS and/or Oracle Cloud ERP.Deep knowledge of:Oracle General Ledger (GL)Oracle Accounts Payable (AP)Oracle Fixed Assets (FA)Full lifecycle Oracle implementation and production support experience.Strong understanding of Record-to-Report (R2R) and Procure-to-Pay (P2P) processes.Experience leading small to medium-sized Oracle support and delivery teams.Banking or Financial Services experience preferred.SQL knowledge for troubleshooting and interface support.

Key Skills

Oracle FinancialsOracle EBSOracle Cloud ERPSolution ArchitectureFinance SystemsGL, AP & Fixed AssetsRequirements GatheringSQLJira & ServiceNowFinance TransformationStakeholder Management

Ideal Candidate

We are looking for a hands-on Oracle Finance specialist with strong functional and technical expertise who is comfortable operating between Finance and Technology teams. Candidates whose recent experience has been focused on Oracle Financials delivery, support and solution architecture will be particularly well suited to this opportunity.

Please note: This role is not aimed at senior Enterprise Architects, TOM consultants or transformation leaders whose recent experience has been primarily strategic rather than hands-on Oracle Financials delivery.

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

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

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

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