Application Security Engineer

Added 06/04/2026

Application Security Engineer ZZP / Freelance Industry: AAA Gaming Studio Location: Fully Remote (Netherlands) Contract Length: 12-18 monthsAbout the RoleA 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 ResponsibilitiesConduct 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 & ExperienceStrong experience...

Field Application Engineer - HFC / DOCSIS 4.0

Added 30/04/2026

We are supporting a global broadband equipment manufacturer looking for a Field Application Engineer to support HFC access network products across North America. This role will focus on DOCSIS 4.0 deployments, HFC outside-plant equipment, RF troubleshooting, amplifier and optical/RF node support, and customer-facing technical engagement with major cable operators.This is a remote-based contract role with regular travel to customer/operator sites. The position has the opportunity to convert to a full-time role.The RoleThe Field Application Engineer will act as the technical bridge between product engineering, sales, and customer field teams. You will support the deployment, commissioning, troubleshooting, and optimization of HFC...

Application Engineer (AVD)

Added 22/04/2026

One of our clients is looking for a hands-on Application (AVD) Engineer to support a major application integration and migration programme following recent acquisitions. This is a key role focused on application packaging, deployment, and secure delivery within a modern Azure-based environment.Preston (Hybrid 2 days /week) 📅 6-Month Contract (outside IR 35) 💼 Immediate Start Key ResponsibilitiesPackage, test & deploy apps into Azure Virtual DesktopSupport and troubleshoot Microsoft AzureDeliver application on boarding & integrationOperate in a Zero Trust model using ZscalerSupport technical discovery, documentation & issue resolution✅ Essential Skills & ExperienceStrong experience with Azure Virtual Desktop (AVD)Application packaging (MSIX, App-V,...

Senior Application DBA Engineer (Azure SQL)

Added 20/02/2026

Role: Application DBA (Azure SQL) Location: Dublin - Hybrid (3 days to office) We're looking for an Application DBA with strong Azure SQL expertise and an architectural mindset to partner with our client's engineering teams and shape the future of our client's cloud data platforms.What you'll work on: 🔹 Azure SQL design, optimisation, security, monitoring 🔹 Performance tuning, indexing strategies & SQL code reviews 🔹 Collaborating directly with developers on schema + query optimisation 🔹 Contributing to cloud architecture (HA/DR, scalability, multi‑region) 🔹 Driving database modernisation and technology directionWe're looking for: ✔ Multiple years with Azure SQL Databases ✔ Strong...

Application Architect - Modernisation project

Added 21/05/2026

Solutions Architect - Tier Bank - Canary Wharf - 2 Stage interview process - ASAP start Role - Application ArchitectDuration - 6 months with very likely extensionLocation - Hybrid / Canary Wharf - 3 days per week in a Canary Wharf officeRate - £750 per day (Inside IR35)Experience -In depth understanding of Object Orientated programming concepts as well as of the full Software Development Life Cycle.Good understanding of MS .NET Framework environments.Knowledge and experience of Agile methodologyKnowledge of Cloud and AI technologies that can be adopted into the workplaceExtensive experience working as a software and solutions architect.Experience in designing of...

Application Architect - Modernisation project

Added 14/05/2026

Solutions Architect - Tier Bank - Canary Wharf - 2 Stage interview process - ASAP start Role - Application ArchitectDuration - 6 months with very likely extensionLocation - Hybrid / Canary Wharf - 3 days per week in a Canary Wharf officeRate - £750 per day (Inside IR35)Experience -In depth understanding of Object Orientated programming concepts as well as of the full Software Development Life Cycle.Good understanding of MS .NET Framework environments.Knowledge and experience of Agile methodologyKnowledge of Cloud and AI technologies that can be adopted into the workplaceExtensive experience working as a software and solutions architect.Experience in designing of...

Application packager- Hybrid

Added 22/04/2026

Knowledge, Skills & ExperienceProven experience working with Microsoft Azure, with a strong understanding of core platform servicesHands-on experience supporting or operating Azure Virtual Desktop (AVD) environments.Practical knowledge of Zscaler (or equivalent Secure Web Gateway / Zero Trust Network Access solutions) in an enterprise environmentExperience supporting application packaging and deployment, ideally in a virtual desktop or managed desktop environmentUnderstanding of Zero Trust security principles, particularly in relation to user access, application access and internet egressExperience working on IT integration, migration or transformation projects, preferably within complex or regulated environmentsAbility to gather, analyse and document technical information to support delivery activities and...

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...

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...

Network Security Engineer

Added 12/05/2026

Network Security EngineerContractLocation: Remote / Hybrid (Amsterdam)Contract Length: 6-12 months Start Date: ASAP Rate: CompetitiveAbout the RoleOur 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 ResponsibilitiesNetwork Security Integration & HardeningAssess, analyse, and map the acquired company's network and security...

Network Security Engineer

Added 12/05/2026

Network Security Engineer gezocht - Utrecht12 maanden contract (Detachering)€65.000 - €70.000Hybride - 2 dagen p/w op kantoor28 vakantiedagen7 officiële feestdagen (Bevrijdingsdag jaarlijks van toepassing)8% vakantiegeld8,33% eindejaarsuitkeringPensioencompensatieWat je gaat doen:Uitvoeren van changes op firewalls, routers, switches en infrastructuurapparatuurAfhandelen van incidenten en uitvoeren van diepgaande onderzoekenToezicht houden op installaties (remote of onsite)Opstellen van HLD's/LLD's + scherp implementatieadvies leverenOntwerpen, configureren & implementeren van routing/switching, firewalls, load balancers, proxies, telefonieBeheren van CMDB-updates, IPAM, netwerkdiagrammen en instructiesOntwikkelen van scripts + het aanjagen van netwerkautomatiseringBeheren van monitoringsystemen, compliance, capaciteit & changesWat jij meebrengt:10+ jaar ervaring met Check Point & Cisco5+ jaar ervaring als Security Specialist binnen...

Lead OT Security Engineer

Added 12/05/2026

Role OverviewThis position provides leadership within the Cyber Solutions Consulting function, supporting senior management in achieving team and organisational objectives. The role combines technical oversight, delivery excellence, and cross‑functional collaboration across presales and project engagements. It also includes guiding internal technology architecture initiatives. Key ResponsibilitiesManage and supervise the Cyber Solutions Consulting team.Design solutions and capabilities for cyber transformation programmes, assessments, remediation activities, roadmap development, systems integration, and solution deployments.Contribute to the organisation's project delivery framework and provide technical oversight across internal and client-facing projects.Support the ongoing development of Cyber Solutions Delivery policies, procedures, and standards.Help define and implement standard operating...

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,...

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...

Network Security Engineer

Added 07/04/2026

Network Security EngineerContract Location: Remote / Hybrid (Amsterdam)Contract Length: 6-12 months Start Date: ASAP Rate: CompetitiveAbout the RoleOur 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 ResponsibilitiesNetwork Security Integration & HardeningAssess, analyse, and map the acquired company's network and...