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Cloud Security Architect

Contract

Industry: Global FinTech Platform
Location: Hybrid (Amsterdam)
Contract Length: 6-12 months

About the Role

A 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 Responsibilities

Design 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 governance and architectural boards.

Skills & Experience

Expert-level knowledge of AWS/Azure native security services.Strong Terraform, Kubernetes, container security, and CI/CD familiarity.Experience in regulated sectors (finance ideal).

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

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Network Security Engineer

Contract

Location: Remote / Hybrid (Amsterdam)

Contract Length: 6-12 months
Start Date: ASAP
Rate: Competitive

About the Role

Our client, a leading gaming company, is seeking an experienced Network Security Engineer Contractor to support a large-scale merger and acquisition integration. The organisation has recently acquired a studio with a significantly different technology estate, and now requires a specialist to help consolidate, secure, and stabilise the combined network infrastructure.

This role is critical in ensuring the security, interoperability, and reliability of both legacy and acquired networks during the integration phase.

Key Responsibilities

Network Security Integration & Hardening

Assess, analyse, and map the acquired company's network and security architecture.Identify vulnerabilities, configuration drift, and conflicting standards across environments.Design and implement secure network integration strategies that align with corporate policies and gaming industry best practices.Strengthen perimeter security, segmentation, and internal traffic controls to ensure a stable post‑M&A environment.

Infrastructure Consolidation & Modernisation

Lead the integration of disparate firewalls, VPNs, proxies, and network monitoring tooling.Support migration of security controls, policies, and configurations into the parent company's environment.Advise on standardisation of network technologies and tooling across both estates.

Operational Security Support

Respond to and investigate network security incidents throughout the integration period.Optimise logging, SIEM visibility, alerting configurations, and incident response workflows.Provide expert-level troubleshooting of complex network and security issues, especially those arising from inter-environment connectivity.

Documentation & Knowledge Transfer

Produce clear, detailed documentation of new network security architectures, configurations, and procedures.Provide knowledge transfer to in‑house infrastructure and security teams.Support creation of new unified network and security standards for the combined organisation.

Technical Skills & Experience

Essential

7+ years' experience in network security engineering within complex, multi‑site environments.Strong hands-on expertise with:Next‑generation firewalls (e.g., Palo Alto, Fortinet, Check Point)VPN technologies (IPSec, SSL VPN, Zero Trust solutions)Network segmentation and micro‑segmentationLoad balancers and web application firewallsIDS/IPS platformsProven experience of M&A network integration or multi‑environment consolidation.Deep understanding of TCP/IP, routing protocols, BGP/OSPF, DNS, DHCP, and network diagnostics.Experience with SIEM, log management, and security monitoring platforms.Comfortable with both traditional on‑prem networks and cloud-connected environments (AWS, Azure, GCP).

Desirable

Experience working in a gaming, media, or high‑performance computing environment.Familiarity with DevSecOps, automation, or infrastructure‑as‑code (Terraform, Ansible).Certifications such as CISSP, CCNP Security, PCNSE, or similar.

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

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Cloud Security Architect

Contract

Industry: Global FinTech Platform
Location: Hybrid (Amsterdam)
Contract Length: 6-12 months

About the Role

A 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 Responsibilities

Design 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 governance and architectural boards.

Skills & Experience

Expert-level knowledge of AWS/Azure native security services.Strong Terraform, Kubernetes, container security, and CI/CD familiarity.Experience in regulated sectors (finance ideal).

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

Read less

Network Security Engineer

Contract

Location: Remote / Hybrid (Amsterdam)

Contract Length: 6-12 months
Start Date: ASAP
Rate: Competitive

About the Role

Our client, a leading gaming company, is seeking an experienced Network Security Engineer Contractor to support a large-scale merger and acquisition integration. The organisation has recently acquired a studio with a significantly different technology estate, and now requires a specialist to help consolidate, secure, and stabilise the combined network infrastructure.

This role is critical in ensuring the security, interoperability, and reliability of both legacy and acquired networks during the integration phase.

Key Responsibilities

Network Security Integration & Hardening

Assess, analyse, and map the acquired company's network and security architecture.Identify vulnerabilities, configuration drift, and conflicting standards across environments.Design and implement secure network integration strategies that align with corporate policies and gaming industry best practices.Strengthen perimeter security, segmentation, and internal traffic controls to ensure a stable post‑M&A environment.

Infrastructure Consolidation & Modernisation

Lead the integration of disparate firewalls, VPNs, proxies, and network monitoring tooling.Support migration of security controls, policies, and configurations into the parent company's environment.Advise on standardisation of network technologies and tooling across both estates.

Operational Security Support

Respond to and investigate network security incidents throughout the integration period.Optimise logging, SIEM visibility, alerting configurations, and incident response workflows.Provide expert-level troubleshooting of complex network and security issues, especially those arising from inter-environment connectivity.

Documentation & Knowledge Transfer

Produce clear, detailed documentation of new network security architectures, configurations, and procedures.Provide knowledge transfer to in‑house infrastructure and security teams.Support creation of new unified network and security standards for the combined organisation.

Technical Skills & Experience

Essential

7+ years' experience in network security engineering within complex, multi‑site environments.Strong hands-on expertise with:Next‑generation firewalls (e.g., Palo Alto, Fortinet, Check Point)VPN technologies (IPSec, SSL VPN, Zero Trust solutions)Network segmentation and micro‑segmentationLoad balancers and web application firewallsIDS/IPS platformsProven experience of M&A network integration or multi‑environment consolidation.Deep understanding of TCP/IP, routing protocols, BGP/OSPF, DNS, DHCP, and network diagnostics.Experience with SIEM, log management, and security monitoring platforms.Comfortable with both traditional on‑prem networks and cloud-connected environments (AWS, Azure, GCP).

Desirable

Experience working in a gaming, media, or high‑performance computing environment.Familiarity with DevSecOps, automation, or infrastructure‑as‑code (Terraform, Ansible).Certifications such as CISSP, CCNP Security, PCNSE, or similar.

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

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Application Security Engineer

ZZP / Freelance

Industry: AAA Gaming Studio
Location: Fully Remote (Netherlands)
Contract Length: 12-18 months

About the Role

A fast‑growing gaming studio is looking for an Application Security Engineer to embed secure development practices into their high‑velocity game and platform engineering teams. You'll help secure game engines, back‑end services, and player‑facing APIs used by millions worldwide.

Key Responsibilities

Conduct secure code reviews and help dev teams fix vulnerabilities.Integrate SAST, SCA, and DAST tools into build pipelines.Perform threat modelling on gameplay features and backend microservices.Respond to application‑level vulnerabilities and guide remediation efforts.Promote a developer‑friendly security culture within the studio.

Skills & Experience

Strong experience with modern languages (C++, C#, Go, Python).Solid understanding of CI/CD security and cloud-native app security.Gaming sector experience is a bonus, not a requirement.

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

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