Security Architect (AppSec and Network Security) - B2B

Added 06/04/2026

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...

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,...

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...

Cloud Security Consultant - B2B

Added 12/05/2026

Role: Cloud Security Consultant - B2BDuration: 6-month rolling contractWorking Pattern: Krakow, Hybrid (handful of days per month)GCS Cyber are working with a global financial services organisation as they continue to strengthen and optimise their Cloud Cyber Security capability. This role focuses on driving cloud security maturity, automation, and governance, with a strong emphasis on Python‑based development alongside hands‑on cyber security expertise.What you'll be doing:Designing, developing, and enhancing cloud security solutions and automation using Python web frameworks (e.g. Flask, Django, FastAPI).Assessing and improving cloud security posture and maturity, including cloud security controls, baseline governance, and security scoring initiatives.Must have:Strong hands‑on experience...

Cloud Security Assessment Specialist - B2B

Added 06/04/2026

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...

Cloud Security Consultant - B2B

Added 06/04/2026

Role: Cloud Security Consultant - B2BDuration: 6-month rolling contractWorking Pattern: Krakow, Hybrid (handful of days per month)GCS Cyber are working with a global financial services organisation as they continue to strengthen and optimise their Cloud Cyber Security capability. This role focuses on driving cloud security maturity, automation, and governance, with a strong emphasis on Python‑based development alongside hands‑on cyber security expertise.What you'll be doing:Designing, developing, and enhancing cloud security solutions and automation using Python web frameworks (e.g. Flask, Django, FastAPI).Assessing and improving cloud security posture and maturity, including cloud security controls, baseline governance, and security scoring initiatives.Must have:Strong hands‑on experience...

Cloud Security Consultant (Google Cloud) - B2B

Added 06/04/2026

Role: Cloud Security Consultant (Google Cloud)Duration: 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, including scaling their cloud security capability. As part of a wider initiative to mature and scale cloud security engineering, we are looking for a Cloud Security Consultant to support security governance, controls, and compliance across Google Cloud environments.What you'll be doing: Reviewing and assessing security exception and risk acceptance requests from global business and technology teams, ensuring compliance with cloud security controls.Providing cloud security...

Cloud Security Consultant (CNAPP) - B2B

Added 06/04/2026

Role: Cloud Security Consultant (CNAPP)Duration: 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 Cloud Security Consultant 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...

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 Threat and Controls Consultant - B2B

Added 06/04/2026

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...

AWS Security Architect - Contract

Added 08/07/2026

AWS Security Architect - ContractWe are seeking an experienced AWS Security Architect to lead the design and implementation of security controls across our AWS estate. This role will be responsible for establishing secure architecture standards, driving security best practices, and ensuring AWS services are deployed in a scalable, compliant, and resilient manner.Working closely with Cloud Engineering, Platform, DevOps, and Cyber Security teams, you will provide both strategic direction and hands-on technical guidance to ensure security is embedded throughout the lifecycle of our AWS platforms and applications.This is a delivery-focused role that combines architecture, engineering, and governance, enabling teams to adopt...

AWS Security Architect

Added 08/07/2026

AWS Security ArchitectWe are seeking an experienced AWS Security Architect to lead the design and implementation of security controls across our AWS estate. This role will be responsible for establishing secure architecture standards, driving security best practices, and ensuring AWS services are deployed in a scalable, compliant, and resilient manner.Working closely with Cloud Engineering, Platform, DevOps, and Cyber Security teams, you will provide both strategic direction and hands-on technical guidance to ensure security is embedded throughout the lifecycle of our AWS platforms and applications.This is a delivery-focused role that combines architecture, engineering, and governance, enabling teams to adopt AWS services...

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...

Principal OT Security Architect

Added 12/05/2026

Role OverviewA leading organisation specialising in cybersecurity and digital transformation is seeking a Principal OT Security Solution Architect to join their team. The company delivers strategic advisory services and customised security solutions to large enterprises and public‑sector clients. Key ResponsibilitiesDevelop high‑quality technical content for proposals, including diagrams, project plans, compliance documentation, and other formal submission materials.Plan, coordinate, and oversee customer proof‑of‑concept (POC) engagements, defining scope, success criteria, technical requirements, timelines, and presenting outcomes.Produce and maintain OT‑security‑related technical documentation such as design concepts, use cases, integration approaches, high‑ and low‑level designs, best practices, and POC reports. Skills & Experience RequiredStrong understanding...