Cloud Security Assessment Specialist - B2B

Added 12/05/2026

Role: Cloud Security Assessment Specialist - B2BDuration: 6-month rolling contractWorking Pattern: Krakow, Hybrid (handful of days per month)GCS Cyber are partnered with a global financial services organisation as they continue to strengthen their Cloud Security Assessment function. This role focuses on ensuring cloud‑hosted services meet mandatory security controls before moving into production. You'll act as a senior cloud security specialist, providing assurance, consultancy, and oversight across complex multi‑cloud environments.What you'll be doing:Executing Cloud Security Assessment reviews for cloud‑hosted services and managing reviews raisedProviding cloud security consultancy to engineering and application teams, supporting secure design and smooth transition into production.Assessing and...

Cyber Threat and Controls Consultant - B2B

Added 12/05/2026

Role: Cyber Threat and Controls Consultant - B2BDuration: 6-month rolling contractWorking Pattern: Krakow, Hybrid (handful of days per month)GCS Cyber are partnered with a global financial services organisation undergoing multiple large-scale transformation programmes across their Cyber Security division.In this role you will perform threat and control assessments across the business, you'll partner with architects, developers and cloud specialists across the business to review designs, challenge assumptions, and ensure services are built with strong security foundations. You'll also contribute to improving the threat‑assessment process, sharing your expertise across a global community and helping uplift security practices across the organisation.Must have:Strong understanding...

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...

Security Operations Engineer - B2B

Added 12/05/2026

Role: Security Operations EngineerDuration: 6-month rolling contractWorking Pattern: Hybrid - multiple UK locationsGCS Cyber are partnered with a global organisation enhancing their Cyber Security Operations capability as part of a wider security transformation. They are now seeking a Security Operations Engineer with deep hands‑on experience across SecOps tooling, detection engineering and incident response enablement.Key ResponsibilitiesEngineer and optimise SIEM, EDR/XDR, SOAR, PAM and vulnerability platforms.Develop and tune detections (KQL/Sigma) to improve visibility and reduce false positives.Support SOC teams with investigations, tooling improvements and root cause analysis.Build automation workflows and SOAR playbooks to streamline response.Improve logging, telemetry and threat‑hunting capabilities.Ensure platform health,...

Security Architect - B2B

Added 12/05/2026

Role: Security Architect (AppSec and Network Security) - B2BDuration: 6-month rolling contractWorking Pattern: Krakow, Hybrid (handful of days per month)GCS Cyber are partnered with a global financial services organisation undergoing multiple large-scale transformation programmes across their Cyber Security division. They are now looking for a Security Architect who has extensive experience managing end-to-end solution designs within large-scale transformation programmes with a heavy focus on Network Security and Application Security Proven experience producing high-level solution designs in line with business requirements.Proven ability to conduct security assessments and threat modelling to inform design decisions.Strong background in cybersecurity, with deep expertise in network...

Cloud Security Solution Architect

Added 20/07/2026

Job Title: Solution ArchitectJob Type: Contract Job Location: SheffieldMandatory Skills: IAM, GCPOverviewA leading global financial services organisation is undertaking a major multi-year Identity & Access Management (IAM) transformation programme to modernise and enhance identity services across a complex international technology landscape.The programme will redefine how identities are managed across the enterprise, spanning workforce, privileged, machine, agent, and workload identities. As part of this transformation, a number of next-generation identity capabilities and platforms will be designed and implemented using modern cloud-native technologies and security principles.We are seeking an experienced Solution Architect / Design Engineer to provide technical leadership across the programme,...

Cloud & Security Engineer

Added 06/07/2026

Cloud & Security Engineer (12-Month Contract)Location: Dublin (Hybrid - 3 days onsite)Contract: 12 Months | Daily RateAn Irish organisation is looking for an experienced Cloud & Security Engineer to support and enhance its Microsoft cloud and security environment.You'll play a key role across cloud infrastructure, identity, endpoint security and incident response while helping to strengthen security posture and modernise IT operations.Key ResponsibilitiesManage Microsoft Entra ID, Conditional Access, MFA and Privileged Identity Management (PIM)Administer Microsoft Intune and Microsoft Defender XDRMonitor and investigate security events using Microsoft SentinelSecure Azure environments using Zero Trust principlesProvide Level 3 support and technical leadershipSupport ITIL processes...

Application Security Engineer - Cloud

Added 30/06/2026

Application Security Engineer You'll join a centralised Application Security team responsible for managing the full lifecycle of security findings reported by customers, internal teams, and third‑party testers.You'll triage real‑world vulnerability reports, reproduce issues in controlled environments, analyse platform‑level attack surfaces, and collaborate with engineering teams to validate fixes and guide remediation.Day to Day ResponsibilitiesValidate vunerabilities, assess scope and impact, determine severity, and recommend remediation paths.vulnerabilities across web, API, and server-side components and privilege escalation.Produce clear, accurate security assessments suitable for both engineering teams and executive level.Partner with development teams on defect filing, patch validation, backport decisions, and fix completeness.Recreate customer...

Cloud Security Engineer - Contract

Added 03/06/2026

Cloud Security EngineerWe are looking for a Cloud Security Engineer to support the security of our clients cloud platforms and modern infrastructure environments. This role will work closely with technology and engineering teams to help identify, assess, and mitigate security risks while promoting security best practices across cloud-native and containerised environments.The successful candidate will bring a strong foundation in information security, a collaborative mindset, and a passion for continuous learning in cloud and infrastructure security. Key ResponsibilitiesSupport the implementation and maintenance of security controls across cloud environments.Collaborate with engineering and operational teams to enhance the security of cloud-based services and...

Cloud Security Architect

Added 12/05/2026

Cloud Security ArchitectContractIndustry: Global FinTech Platform Location: Hybrid (Amsterdam) Contract Length: 6-12 monthsAbout the RoleA leading FinTech provider is modernising its global cloud footprint and requires a Cloud Security Architect to design, implement, and govern cloud security standards across multi‑cloud estates. You will be the senior technical authority shaping how secure‑by‑design cloud services are built.Key ResponsibilitiesDesign secure architectures across AWS and Azure for high‑volume financial services.Define IaC security standards, encryption baselines, and identity patterns.Lead threat modelling, architectural risk assessments, and cloud posture reviews.Support engineering teams with secure build patterns, guardrails, and security automation.Act as a technical SME for cloud security...

Penetration Tester / Security Consultant)

Added 04/09/2026

Penetration Tester 📍 Remote | Europe 🕒 Full-Time Our client is looking for a Penetration Tester with 3+ years of experience to join a growing security consultancy team. Key Focus Areas:Web Application Security TestingAPI Security TestingAuthentication & Access Control ReviewsVulnerability Validation & ExploitationClient Reporting and Remediation Guidance Requirements:3+ years' hands-on penetration testing experienceStrong knowledge of OWASP Top 10 and API Security Top 10Experience with tools such as Burp Suite, Nmap, and NessusStrong report writing and client communication skills Highly preferred to have:CREST certifications (CRT/CCT), or OSCP+ and/or BSCPExperience with cloud security testingExposure to AI/LLM security assessments Join a collaborative team...

Network Security Consultant

Added 27/05/2026

Senior Network Security Consultant (DORA Programme) - ContractLocation: Fully Remote (Europe)Preferred Location: PolandContract Duration: 12 months initial (strong likelihood of extension)Start Date: ASAP OverviewWe are supporting a major European financial services organisation on a large-scale DORA compliance programme and are looking to onboard multiple Senior Network Security Consultants on a contract basis.This is a high-impact engagement focused on delivering third-party infrastructure and security assessments at scale. You will join an established Cloud & Network Security function, contributing to critical regulatory compliance activities. The RoleAs a Senior Consultant, you will operate at a strategic and advisory level, focusing on assessment, architecture...

Cloud Infrastructure Engineer - Azure & On-Prem

Added 21/08/2026

Cloud Infrastructure Engineer - Azure & On-Premises London 4 days a week 3 month contract We're looking for an experienced Cloud Infrastructure Engineer to join a small, collaborative technology team supporting a hybrid infrastructure environment across Microsoft Azure and on-premises infrastructure. This is a hands-on role covering Azure, Windows Server, VMware, Hyper-V, Microsoft 365, networking, identity, automation and security. You'll play a key role in the organisation's cloud transformation, including the migration of on-premises VMware workloads to Azure and Hyper-V, while continuing to support and develop the existing on-premises estate. What You'll Be Doing Design, deploy and maintain Microsoft Azure...

AWS Cloud Engineer - 6M Contract

Added 17/08/2026

Cloud Engineer - Fully Remote | 6-Month Contract An exciting opportunity is available for a Cloud Engineer to join a high-performing Platform Engineering team on a 6-month contract basis.This is a hands-on role focused on building and improving cloud infrastructure through Infrastructure as Code, automation, CI/CD and DevOps practices. You'll work closely with cloud and platform engineering teams to deliver secure, scalable and reusable cloud services that support application and development teams across the organisation.Key ResponsibilitiesBuild and maintain cloud infrastructure using IaC tools such as Terraform, CloudFormation or Bicep.Develop and maintain CI/CD pipelines to automate infrastructure and application deployments.Automate cloud...

Python Cloud Engineer

Added 12/08/2026

Python Cloud EngineerJob SummaryAmazon Robotics is seeking a Senior Software Developer to build and productionize a cloud-based Quality Control platform used to inspect robotic storage racks through 3D camera systems. The role focuses on developing AWS IoT data pipelines, backend services, cloud integrations, and testing frameworks to support a large-scale robotics deployment across multiple sites.Key ResponsibilitiesBuild and maintain AWS IoT data pipelines using MQTT, AWS IoT Core, Lambda, and S3.Develop scalable backend services in Python for processing image and video data.Integrate cloud services with internal APIs and downstream systems.Own integration testing and ensure end-to-end system reliability.Review, validate, and enhance AI-generated...