Cyber Security Engineer - Microsoft 365 & Azure

OT Cyber Security Engineer (Outside IR35)

Added 07/04/2026

OT Cyber Security Engineer - Contract (Outside IR35)Location: UK (Remote with occasional travel) Duration: 12 Months Rate: Competitive (Outside IR35)The OpportunityWe're supporting a major programme within the OT / Industrial Cyber Security space, delivering security improvements across critical environments.This is a project focused contract, ideal for an experienced OT Cyber Security Engineer who has worked within live industrial environments and understands the challenges of securing legacy and operational systems.Key ResponsibilitiesDeliver OT security improvements across industrial environmentsSupport security assessments, risk identification, and remediation activitiesWork closely with engineering and operational teams to implement controlsContribute to network segmentation, asset visibility, and monitoring initiativesSupport...

2nd Line Engineer- Hybrid (Outside IR35)

Added 20/04/2026

Essential RequirementsReliability and infrastructure services. Focus on patching of vulnerabilities with our digital Windows and WMWare environment within our data centers and Cloud environments. Service Scope and DeliverablesSystem and application patching on the following technologies:Citrix.Hardware.VMWare.Windows Server.M365.Core data centre services such as AD, Group Policy, DNS, VPN, AV, MFA, WSUS, SCCM, monitoring tools etc.SAN storage and backup.Multi Factor Authentication.MS AzureVulnerability assessment and patch identification.Patch prioritisation and risk scoringPatching using technologies WSUS and Tanium.Testing and deploying patching to ensure they do not impact productionConfirmation and validation of successful patch deploymentCreation and input into RFC process as part of ITSMGCS is acting as...

Lead Software Engineer- outside IR35

Added 18/03/2026

Lead Software Engineer (Backend) JavaScript/TypeScript, AWS, Kafka Outside IR35 ContractMy London based client is urgently looking for an experienced Lead Software Engineer with a strong back-end focus to lead the build and evolution of scalable, cloud-native services. You'll set technical direction, mentor engineers, and stay hands-on delivering production code.What you'll do:Lead backend design and development (Node.js, TypeScript/JavaScript)Build and operate event-driven microservices using KafkaOwn AWS-based delivery (scalability, performance, reliability, security)Drive engineering standards: code reviews, testing strategy, CI/CD, observabilityPartner with Product/Architecture to translate requirements into robust solutionsKey skills:Strong commercial backend experience with JavaScript/TypeScript (Node.js)Kafka experience (event-driven systems, distributed messaging)Strong AWS experience across...

Automation Test Manager- javascript, BDD- OUTSIDE IR35

Added 02/07/2026

Automation Test ManagerHybrid | London | Outside IR35We're looking for an experienced Automation Test Manager to lead quality across a large-scale programme spanning 6 Agile teams.You'll own the test strategy, define BDD test cases with Engineering and QA teams, lead bug triage, coordinate cross-team testing activities, and provide release recommendations to stakeholders.Key Skills:Test Strategy & Quality LeadershipBDD / CucumberPlaywright, Cypress, WebdriverIOJavaScript / TypeScriptCI/CD & Test AutomationStakeholder & Client ManagementDefect Management & Release GovernanceThis is an excellent opportunity to shape quality across a complex transformation programme and work closely with senior stakeholders in a highly visible role.Please send across an updated...

Fractional CISO - FinTech (Contract / Outside IR35)

Added 07/04/2026

Fractional CISO - FinTech (Contract / Outside IR35)Location: London (Fully Remote) Engagement: Fractional (2-3 days per week) Duration: 6-12 Months Rate: £1000pd+ (Outside IR35)The OpportunityGCS Cyber are partnering with a rapidly growing PE backed FinTech firm as they scale their security capability and mature their overall cyber posture.This is a Fractional CISO engagement, ideal for a senior security leader who can provide strategic direction while remaining hands-on where needed.You'll be working closely with the executive team, helping shape security strategy in line with business growth, regulatory expectations, and investor confidence.Key ResponsibilitiesDefine and lead the cyber security strategy and roadmapEngage with...

Software Engineering Lead- Javascript, AWS- outside IR35

Added 17/03/2026

Software Engineering Lead - Backend (JavaScript / TypeScript, Node.js, AWS, Kafka)Outside IR35Remote with 2 days a month in the office in LondonWe're looking for an experienced Software Engineering Lead with a strong backend development background to lead the delivery of scalable, cloud‑native systems.Key skills:Strong commercial experience with JavaScript, TypeScript, and Node.jsProven experience building event‑driven systems using KafkaStrong AWS experience across modern cloud servicesBackground designing and operating microservices / distributed systemsHands‑on technical leader with experience mentoring engineers and leading deliveryRole overview:Lead backend architecture and development while remaining hands‑onDrive best practices through code reviews and technical leadershipWork closely with Product, DevOps, and...

Senior Cyber Security Engineer

Added 15/06/2026

As a Senior Cyber Security Engineer, you will play a critical role in delivering cyber strategies, with responsibility for the design, implementation, and ongoing effectiveness of security capabilities across IT and OT environments.You will engineer and maintain the technical capabilities that enable early threat detection, rapid and consistent response, and sustained cyber risk reduction, while translating cyber risk, regulatory, and business demands into practical, measurable, and operationally sustainable security controls.This is a hands‑on engineering role for individuals who enjoy building resilient security capabilities, integrating platforms and telemetry, and turning strategy, risk, and incident learnings into practical engineering outcomes. The role...

OT Cyber Security Engineer

Added 13/04/2026

Cyber Security OT Engineer📍 Suffolk (1-2 days per week on-site)Overview We're looking for an experienced Cyber Security OT Engineer to support and secure critical operational technology environments. You'll work across infrastructure, networks, and security tooling to ensure resilience, compliance, and protection against cyber threats in a regulated environment.Key ResponsibilitiesSupport and maintain OT security infrastructure (firewalls, SIEM, PAM, IDS, endpoint security)Monitor, troubleshoot, and resolve security incidents and problemsImplement changes in line with strict change control processesSupport OT security projects and continuous improvement initiativesAssist with cyber incident response and recovery activitiesWork with internal teams, vendors, and stakeholders to enhance security postureContribute to...

Cyber Security Manager

Added 11/06/2026

🔐 Cybersecurity Manager (Audit & Compliance) - Los Angeles, CA📍 Location: Los Angeles, CA 📄 Duration: 12+ Month Contract (C2H Possible) 🏢 Work Model: Hybrid🚀 About the RoleJoin as a Cybersecurity Manager leading large-scale security audit and compliance programs. You'll ensure audit readiness, drive remediation, and align enterprise systems with industry standards.🛠️ ResponsibilitiesLead enterprise audit and compliance initiativesOversee risk assessments and vulnerability remediationDrive adherence to ISO 27001, SOC2, NISTPartner with cross-functional teams and stakeholdersProvide executive-level reporting on audit progress✅ Requirements7-10+ years in cybersecurity or compliance rolesExperience with audit, risk, and governance programsStrong stakeholder communication skillsPreferred certifications: CISSP, CISM, CISA, PMP...

Cyber Security Manager

Added 11/06/2026

🔐 Cybersecurity Manager (Audit & Compliance) - Irvine, CA📍 Location: Irvine, CA 📄 Duration: 12+ Month Contract (C2H Possible) 🏢 Work Model: Hybrid🚀 About the RoleWe are hiring a Cybersecurity Manager to lead enterprise audit and compliance initiatives, focusing on ISO 27001, SOC2, and NIST frameworks. You'll drive audit readiness, manage remediation efforts, and ensure security compliance across the organization.🛠️ ResponsibilitiesLead internal & external cybersecurity auditsManage audit findings, risk, and remediation effortsEnsure compliance with ISO, SOC2, NIST frameworksCollaborate with IT & Security teams to close gapsTrack and report audit status to leadership✅ Requirements7-10+ years in cybersecurity, audit, or complianceStrong knowledge...

OT Cyber Security Delivery Manager

Added 01/06/2026

Role: OT Cyber Security Delivery ManagerDuration: 6 month rollingRate: Up to £650 Inside IR35Location: London (2 days onsite)I'm supporting an urgent requirement for an experienced OT Cyber Security Delivery Manager to drive the delivery of security improvements across a complex OT environment.This role is very much delivery-led, so we need someone who has hands-on experience implementing OT security controls, owning execution across initiatives like IT/OT segmentation, NIS2, and secure access.What we're looking for:Proven experience leading and delivering OT cyber programmes/projects end-to-end (IEC62443 / NIST aligned)Strong experience across ICS/SCADA and OT environmentsAbility to drive delivery across engineering, cyber, and operations teamsTo...

Cyber Security Analyst - B2B

Added 12/05/2026

Role: Cyber Security AnalystDuration: 6-month rolling contractWorking Pattern: Krakow, Hybrid - Handful of days per monthGCS Cyber are partnered with a global financial services organisation undergoing multiple large-scale transformation programmes across their Cyber Security division, including scaling their cloud security capability. We're hiring a Cyber Security Analyst to help drive the maturity of our cloud security posture and play a key role in developing and enhancing our CNAPP tooling.What you'll be doing:Enhancing and developing CNAPP capabilities, including automation, governance, dashboards, and reportingWorking closely with cloud engineers, architects, and cyber teams to align with mandatory controls and best practiceDriving continuous improvement...

Director - Cyber Security Consulting

Added 12/05/2026

Role OverviewWe are seeking an experienced Cyber Security Director to provide strategic and day‑to‑day leadership across a wide range of cybersecurity initiatives for our clients. This role is central to shaping, delivering, and overseeing high‑impact security programmes, while advising senior stakeholders on risk, resilience, and organisational security maturity.You will work closely with executive teams, technology leaders, and operational stakeholders to design and implement cybersecurity strategies, lead crisis and incident response efforts, and guide clients through complex security challenges. The role requires a strong consulting mindset, the ability to manage multiple engagements simultaneously, and a passion for driving measurable improvement in...

OT Cyber Security Project Manager - Fully Remote

Added 06/05/2026

OT Cyber Security Project Manager - 6-month rolling - Inside IR35 - Fully RemoteI'm hiring for an experienced OT Cyber Security Project Manager to lead the delivery of Cyber Security improvements across an Operational Technology environment.Must have managed OT Cyber projects end-to-end, from conception to delivery!If interested, please drop me a message or an email to [email protected] is acting as an Employment Business in relation to this vacancy.

Cyber Security Transformation Manager - OutsideIR35

Added 07/04/2026

Cyber Security Transformation Manager - Contract (Outside IR35)Location: UK - Manchester or London (Remote with occasional travel) Duration: 12 Months Rate: £950-£1,050/day (Outside IR35)The OpportunityWe're partnering with a fast-growing retail client on a 12-month cyber security transformation programme.This role is ideal for a hands-on Transformation Manager who can deliver enterprise-wide cyber initiatives, implement security tooling, and drive compliance improvements to support the client's rapid growth.You will work closely with internal stakeholders, operational teams, and vendors to ensure successful delivery of multiple workstreams, balancing strategic oversight with practical implementation.Key ResponsibilitiesLead delivery of cyber security transformation projects across multiple workstreamsImplement and optimise...