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 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...

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...

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 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...

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...

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.

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...