Senior WiFi Engineer Wireless Infrastructure

Added 31/03/2026

Designation: Senior WiFi Engineer (Wireless Infrastructure)Job Description:We are seeking a Senior WiFi Engineer to lead the design and optimization of large-scale wireless infrastructure. The ideal candidate will have deep technical expertise and experience managing complex wireless environments.Key Responsibilities:Lead design and architecture of enterprise wireless networksConduct advanced RF analysis, capacity planning, and optimizationManage large-scale deployments and upgrades of WiFi infrastructureTroubleshoot complex wireless performance issuesDefine best practices and standards for wireless networksWork closely with vendors and stakeholdersRequired Skills & Qualifications:5+ years of experience in wireless networkingStrong expertise in RF design and wireless architectureExperience with enterprise-grade solutions (Cisco, Aruba, Meraki)Deep understanding of 802.11...

Infrastructure Engineer - MS Teams Shifts Project

Added 07/05/2026

Infrastructure Engineer - MS Teams Shifts Focused - 6 Month ContractWe are supporting a major Dublin-based hospital on a large-scale workforce transformation programme centred around the rollout and optimisation of Microsoft Teams Shifts across multiple departments.This project will play a key role in modernising workforce management processes, improving reporting visibility, streamlining rostering workflows, and reducing manual administration across the organisation.We are looking for an experienced Infrastructure Engineer with strong Microsoft Teams Shifts experience to join the programme on an initial 6-month contract.Contract Details* 6-month contract* Fully remote role* Irish or UK-based candidates preferredKey Responsibilities* Support the rollout and optimisation of...

Network Infrastructure Engineer

Added 31/03/2026

Job SummaryWe are looking for a Telecom Infrastructure Engineer to design, deploy, operate, and support robust IT and telecom infrastructure systems that enable reliable network services. The role focuses on supporting core telecom environments including data centers, network elements, OSS/BSS platforms, and cloud‑based telecom workloads, ensuring high availability, performance, and regulatory compliance.Key ResponsibilitiesDesign, implement, and maintain telecom and IT infrastructure supporting voice, data, and signaling platformsManage data center infrastructure, including servers, storage, virtualization, and network connectivitySupport telecom network elements such as MSC, SBC, IMS, NMS, mediation, billing, and provisioning systemsEnsure high availability and redundancy for critical telecom servicesMonitor infrastructure performance,...

IT Infrastructure Architect

Added 02/06/2026

IT Infrastructure Architect - Shape the Future of Global Airport TechnologyStep into a role where your technical leadership directly influences large‑scale, mission‑critical systems used in airports around the world. As an IT Infrastructure Architect, you'll guide the full lifecycle of infrastructure delivery from early sales engagement to final service handover, ensuring every solution is robust, secure and engineered for long‑term success. 🌍 What You'll DoLead Infrastructure Delivery - Own the technical design and delivery of IT infrastructure within complex airport system projects.Collaborate with Global Teams - Work closely with peer architects, engineers and product specialists across continents.Design Future‑Ready Solutions -...

IT Infrastructure Project Lead

Added 11/05/2026

🚀 IT Infrastructure Project Lead | Global Automation Projects | International EnvironmentWhat if your next role gave you the opportunity to lead complex IT infrastructure projects powering some of the world's most advanced automated logistics systems?We're partnering with a global leader in logistics automation, delivering cutting-edge solutions across airports, warehousing, and parcel handling operations worldwide. From design and testing through to on-site commissioning, you'll play a key role in delivering large-scale, future-focused infrastructure projects with real operational impact.🔹 What you'll be doing:* Leading end-to-end IT infrastructure delivery within multidisciplinary international projects* Managing timelines, budgets, risks, quality, and stakeholder expectations* Collaborating...

IT Infrastructure Project Lead

Added 11/05/2026

🚀 IT Infrastructure Project Lead | Global Automation Projects | International EnvironmentWhat if your next role gave you the opportunity to lead complex IT infrastructure projects powering some of the world's most advanced automated logistics systems?We're partnering with a global leader in logistics automation, delivering cutting-edge solutions across airports, warehousing, and parcel handling operations worldwide. From design and testing through to on-site commissioning, you'll play a key role in delivering large-scale, future-focused infrastructure projects with real operational impact.🔹 What you'll be doing:* Leading end-to-end IT infrastructure delivery within multidisciplinary international projects* Managing timelines, budgets, risks, quality, and stakeholder expectations* Collaborating...

(2nd Line Infrastructure Support)

Added 20/04/2026

One of our clients is seeking an experienced Patch & Vulnerability Engineer to support a large-scale Windows, VMware, Citrix, Azure hybrid environment, delivering secure and controlled enterprise patching across on-prem and cloud infrastructure.📍 Preston (Hybrid - 2-3 days onsite) | 📅 12-Month Contract (Outside IR 35) Key SkillsVulnerability management & risk-based patch life cycle (assessment, prioritisation, remediation, validation)WSUS & Tanium for enterprise patch deployment (Must Have)Windows Server, VMware, CitrixAzure & M365 supportActive Directory, Group Policy, DNS, VPN, MFAAV / endpoint security & SAN awarenessITIL / ITSM change management (RFCs)Patch testing, deployment & validation in production environmentsSummaryExcellent opportunity for an infrastructure...

IT Infrastructure Project Manager

Added 05/03/2026

I am looking for an IT Infrastructure Project Manager to join a leading international professional services organisation on a 12‑month fixed‑term contract 80-90K per annum plus benefits, based in Dublin city centre, working 3 days onsite per week. This role sits at the centre of a major IT transformation programme, with a focus on infrastructure, security, and operations.You'll be delivering high‑impact projects that modernise the organisation's technology landscape and directly improve service delivery and operational performance.What you will be doing in the role:Lead the end‑to‑end delivery of infrastructure, security, and IT operations projects.Define project scope, requirements, timelines, budgets, risks, and...

Cloud Infrastructure Analyst

Added 25/02/2026

Cloud Infrastructure Analyst required with knowledge and experience of managing Microsoft Azure Infrastructure, Windows servers, Microsoft 365 and all related services including Intune and identity management, knowledge of Meraki networkingGCS is acting as an Employment Business in relation to this vacancy.

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...

Senior Full Stack Developer - Security

Added 19/05/2026

Senior Full Stack Developer - Identity & Access ManagementPosition SummaryWe are seeking an experienced Senior Full Stack Developer to join a high-performing engineering team supporting enterprise Identity & Access Management (IAM) applications within a large-scale security organization. This role will focus on the design, development, integration, and modernization of secure enterprise applications used internally across the organization.The ideal candidate will possess strong expertise across both frontend and backend development, with deep experience in Angular, Java, Spring Boot, REST API development, cloud-native AWS services, and secure application development practices. This individual will play a key technical leadership role within the team,...

Senior Consultant - AI Security & Threat Modelling

Added 21/04/2026

Senior Consultant - AI Security & Threat Modelling (GenAI / Agentic AI)We are supporting a large, regulated financial services organisation that is building a central GenAI threat‑modelling and consultancy capability. This role sits within a specialist threat‑modelling team, advising GenAI and Agentic AI projects early in design, before solutions reach production. This is not a coding role and not a general cyber role. Key ResponsibilitiesHands‑on threat modelling of GenAI and Agentic AI systemsAdvising application teams on AI‑specific risks, including:Prompt injectionAgent intent hijackingUnsafe autonomy and tool misuseMissing safety rails / kill switches (e.g. MCP‑style controls)Misalignment and behavioural driftActing as an internal...

Senior Software Engineer/Data Platform Engineer (Databricks, Graph, APIs)

Added 30/04/2026

Senior Software Engineer / Data Platform Engineer (Databricks, Graph, APIs)Location: Philadelphia, PA The team sits within the network technology organisation and is responsible for building advanced data platforms that support digital twin capabilities across the access network. The group combines network design data, telemetry, mapping technologies, and graph intelligence to improve troubleshooting, planning, operational efficiency, and market competitiveness.The team works on highly scalable engineering products including large data pipelines, graph databases, APIs, and mapping platforms. Their work enables smarter network decisions, faster fault resolution, and better use of operational resources.This is a technically strong team focused on solving complex real-world...

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...

Application Security Engineer

Added 12/05/2026

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...