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Security Architect - Tooling & Product Architecture

Location: Dublin City Centre / Hybrid

Type: Permanent

Salary: Competitive

About the Role

We're looking for a Security Architect who genuinely enjoys working with security tools and products. This is not a governance-heavy architecture role - it's for someone who gets excited about evaluating new security technologies, understanding how they work under the hood, and designing integrated security ecosystems that deliver real operational value.

You'll combine hands-on technical depth with strategic architecture thinking, working across endpoint security, identity, cloud security, SIEM, and threat detection platforms. A key requirement is extensive CrowdStrike experience.

The role focuses on architecting and optimising security tooling across the organisation, including endpoint protection, IAM/PAM, cloud security, SIEM, vulnerability management, and data protection solutions. It also involves evaluating new products through technical assessments and POCs, integrating tools across infrastructure and cloud environments, defining security standards and best practices, and collaborating with engineering, infrastructure, compliance, and incident response teams to improve visibility, detection, and operational effectiveness.

Source: Security Architect JD

What You'll Be DoingDesign and architect security solutions across endpoint, identity, cloud, SIEM, and threat detection domainsEvaluate new security products, run technical assessments and POCs, and make vendor recommendationsIntegrate and optimise security tools across infrastructure, applications, and cloud environmentsDefine security standards, runbooks, and architecture documentationWork closely with engineering, infrastructure, compliance, and incident response teamsStay current with the evolving security product landscape and recommend improvements and new capabilitiesSupport incident response and threat investigations by ensuring security tooling is configured effectivelyMentor technical teams on security tool best practices and emerging capabilitiesWhat We're Looking ForEssential7+ years in security roles, including 3+ years in security architecture, security engineering, or security tool evaluationDeep hands-on experience deploying, configuring, and optimising enterprise security products in production environmentsBroad knowledge across:IAM / PAM / SSOEDR and endpoint protectionCloud security (CSPM, CWPP, cloud-native security)Network security (firewalls, IDS/IPS, segmentation)SIEM and security analyticsVulnerability managementData protection and encryptionStrong understanding of APIs, integrations, data flows, and troubleshooting complex security configurationsExperience communicating security architecture to both technical and non-technical stakeholdersFamiliarity with frameworks such as ISO 27001, SOC 2, and NISTExtensive CrowdStrike experience is essential.

These requirements reflect the core competencies, experience expectations, compliance familiarity, and mandatory CrowdStrike requirement outlined in the job description.

Nice to HaveSOAR / security automation experienceThreat intelligence or threat hunting backgroundIncident response or threat analysis experienceInfrastructure-as-Code and security automation exposureCertifications such as CISSP, CCSK, or similarWhy This Role?

This is an opportunity to join an environment where security tooling is treated as a craft rather than a checkbox exercise. You'll have the autonomy to influence technology decisions, evaluate emerging products, and shape the organisation's future security architecture.

If you're interested, apply here or send your CV to [email protected] for a confidential discussion.

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

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Our client is seeking an experienced Technical Project Manager / Solution Architect to support the ongoing development of telecommunications-based solutions designed to combat fraud, scam calls, scam texts, and other nuisance communications.

This is a highly visible role requiring a blend of telecommunications expertise, technical architecture, stakeholder engagement, project delivery, and supplier management. The successful consultant will act as the bridge between business stakeholders, industry participants, technology suppliers, and end users to ensure the successful design and delivery of technical solutions.

Contract Details

Day rate contractUp to 5 days per weekLong-term programme of workHybrid working modelApprox. 60-80% onsite attendance required in Dublin

Key Responsibilities

Solution Design & Architecture

Gather and define business, operational, and regulatory requirements for enhancements to existing telecommunications systems and databases.Translate requirements into technical specifications, solution designs, process documentation, and user guidance materials.Design and propose new technical interventions to address emerging fraud and communications security threats.Develop processes and technical frameworks supporting future telecommunications initiatives.

Technical Project Delivery

Manage projects from requirements gathering through design, development, testing, deployment, and operational handover.Act as the technical authority throughout delivery, providing guidance and resolving technical issues.Coordinate implementation activities and ensure successful rollout of new functionality.Manage project documentation, testing, governance, and stakeholder communications.

Stakeholder & Supplier Management

Engage with a broad range of stakeholders across industry, business, technical, and regulatory environments.Work closely with third-party technology and database providers to validate requirements and oversee delivery.Facilitate workshops, forums, working groups, and stakeholder meetings.Present technical concepts and project updates to both technical and non-technical audiences.

Data & Reporting

Develop and improve data management strategies for operational databases.Recommend and implement enhancements to reporting, analytics, and business intelligence capabilities.Support the development of dashboards, reporting tools, and data-driven decision-making processes.

Procurement Support

Contribute to technology procurement activities, including requirements definition, tender preparation, supplier evaluation, and solution assessment.

Essential Experience

Candidates should demonstrate:

Significant experience within the telecommunications industry.Strong knowledge of Voice and SMS services, including network design and/or operations.Experience working with telecom operators, network providers, regulators, vendors, or communications technology organisations.Proven experience delivering complex technical projects from initiation through implementation.Strong solution architecture and technical design experience.Ability to produce detailed technical specifications and documentation for both technical teams and business users.Experience managing third-party suppliers and development teams.Experience working in multi-stakeholder environments.

Technical Skills

Telecommunications standards and frameworks including:

ITU-TETSI3GPPSQL databases and database-driven applicationsData management and analyticsPower BI reporting and dashboard developmentMicrosoft 365 technologies including: SharePoint OnlineOneDriveExchange Online

Desirable Experience

Experience within regulated industries or public sector environments.Telecommunications regulatory knowledge.Understanding of communications security, fraud prevention, and anti-scam technologies.Knowledge of scam calls, scam texts, caller ID spoofing, sender ID management, and related industry initiatives.Experience supporting procurement and tender processes.Knowledge of the Irish telecommunications market.

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

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We're hiring Back-End Lead / Principal .NET engineers for a greenfield AI platform (Azure, microservices). Dublin hub, ideally hybrid.

Contract Role

This long term contract role is for a seasoned .NET Core backend engineer with over six years of experience. The ideal candidate will design and build scalable, event-driven microservices using Azure services such as App Services, Cosmos DB, Service Bus, and Event Hubs while applying CQRS and NoSQL patterns.

Tech Stack: .NET Core, Azure services, microservices, and event-driven architectures, along with hands-on experience in GitHub/GitHub Actions for CI/CD.

If you want to join an innovative, market-leading team working at the forefront of AI and enterprise software, Apply Today!

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

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

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Role: Cloud Infrastructure Engineer (AWS)

Location: Dublin, Ireland (Hybrid - 2 days onsite per week)

Duration: 11Months Contract

About the Role

We're looking for a Cloud Infrastructure Engineer with strong AWS experience to help design, build, automate and support enterprise-scale cloud infrastructure. You'll work on Infrastructure as Code, cloud networking, compute and storage platforms, and collaborate with engineering teams to deliver secure, scalable, and highly available cloud solutions.

This is an excellent opportunity for an engineer who enjoys solving complex infrastructure challenges and working with modern cloud technologies in a collaborative Agile environment.

Key ResponsibilitiesDesign, build and support AWS cloud infrastructure and services.Develop, deploy and maintain Infrastructure as Code (IaC) solutions.Troubleshoot and optimize cloud compute, storage and networking environments.Develop automation tools and scripts to improve platform reliability and operational efficiency.Support cloud-based infrastructure, operating systems, networking, databases and related technology platforms.Investigate infrastructure issues, perform root cause analysis and implement long-term solutions.Work closely with engineering teams to improve platform performance, scalability and reliability.Participate in Agile ceremonies including daily stand-ups, sprint planning and retrospectives.Skills & ExperienceHands-on experience designing and supporting AWS cloud environments.Strong understanding of networking concepts across on-premises and cloud environments.Experience with Infrastructure as Code (Terraform, CloudFormation or similar).Strong troubleshooting experience across AWS compute, storage and networking services.Experience managing cloud infrastructure in production environments at scale.Knowledge of Linux or Windows server administration.Experience working in Agile/Scrum teams.3-5+ years of relevant Systems Engineering, Cloud Infrastructure or Platform Engineering experience.Nice to HaveAWS certifications.Experience with automation and scripting.Experience supporting enterprise-scale cloud infrastructure.Education

Bachelor's degree (or equivalent experience) in Systems Engineering, Computer Science, Information Technology, Infrastructure, Networking or a related field. AWS certifications are an advantage.

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

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Role: AWS & Azure System Engineer

Location: Dublin, Ireland (Hybrid - 2 days onsite per week)

Experience: 3-5+ years

Duties

With Public Cloud experience and expertise (AWS, Azure), designs, develops, troubleshoots and debugs infrastructure as code, software defined compute & storage implementation, and software programs for enhancements and new products. Develops software and tools in support of design, infrastructure and technology platforms, including operating systems, compilers, routers, networks, utilities, databases, cloud-based and Internet-related tools. Determines hardware compatibility and/or influences hardware design.

SkillsHands-on working experience with Public Cloud platforms: AWS, AzureNetworking understanding, both on-premises and Public Cloud environmentsInfrastructure as Code (IaC), hands-on working experience deploying, managing, supporting, and debuggingDeep technical knowledge of troubleshooting compute & storage infrastructure within Public Cloud (AWS, Azure)Managing services running in Public Cloud at scale across regional and global environmentsWorking within SPRINT / Agile models with daily stand-ups and weekly SPRINT processes (SCRUM, etc.)3-5 years of experience with the above skill areasHybrid working with an expectation of 2 days per week in the officeEducation

Real-world work experience with AWS and Azure. Public Cloud certifications, Systems Engineering, Networking, Infrastructure, AI, or related degrees and studies. Associate's and/or 4-year degree or higher.

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

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DevSecOps Engineer (12-Month Contract)About the Role

We are seeking an experienced DevSecOps Engineer to join a growing technology team on an initial 12-month contract. This role offers the opportunity to work on modern cloud platforms, helping to build, secure and optimise infrastructure while embedding security throughout the software development lifecycle.

You'll collaborate with cross-functional engineering, security and operations teams to deliver scalable, resilient and secure solutions in a fast-paced environment.

Key Responsibilities

Design, implement and maintain secure cloud infrastructure and deployment pipelines.

Integrate security best practices throughout the software development lifecycle.

Develop and improve Infrastructure as Code (IaC) solutions.

Support CI/CD pipeline development, automation and optimisation.

Collaborate with development, platform and security teams to identify and mitigate risks.

Monitor cloud environments, responding to vulnerabilities and security findings where appropriate.

Contribute to cloud security standards, governance and compliance initiatives.

Assist with incident response, root cause analysis and continuous improvement activities.

Promote automation and operational excellence across engineering teams.

Document solutions, processes and technical decisions.

Skills & Experience

We're interested in professionals who have experience in several of the following areas:

DevSecOps, DevOps, Platform Engineering or Cloud Engineering.

Public cloud platforms such as AWS, Azure or Google Cloud Platform (GCP).

Infrastructure as Code tools such as Terraform, CloudFormation or Bicep.

CI/CD technologies including Azure DevOps, GitHub Actions, GitLab CI or Jenkins.

Container technologies such as Docker and Kubernetes.

Cloud security principles, identity and access management, secrets management or policy enforcement.

Scripting or automation using Python, Bash, PowerShell or similar.

Monitoring and observability tools.

Security scanning, vulnerability management or compliance tooling.

Version control systems such as Git.

What We're Looking For

Strong problem-solving and troubleshooting skills.

Ability to work independently and collaboratively within cross-functional teams.

Excellent communication and stakeholder engagement skills.

A proactive approach to continuous improvement and automation.

Experience working within Agile delivery environments is beneficial.

Contract Details

Initial 12-month contract.

Competitive daily rate.

Hybrid and remote working options may be available depending on the project.

Opportunity to work on enterprise-scale cloud and security initiatives.

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

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Multiple openings: Staff Engineer (11-Month Fixed Term Contract)

Dublin City Centre (2 days onsite)

Salary: up to €119K + 25 Annual leave days + paid public holidays (all pro-rated for 11-months)

(Sponsorship is not provided for this role)

Join a Fortune 500 enterprise software organization whose technology is used by more than 90% of Fortune 500 companies worldwide.

Our client are seeking experienced Multi Cloud Infrastructure professionals with expertise in:

AWS, Azure and/or GCP

Terraform and Infrastructure as Code

Cloud Networking

Production Support & Troubleshooting

Infrastructure Automation

Large-Scale Cloud Operations

If you're passionate about building, operating, and troubleshooting cloud infrastructure at scale, we'd love to connect.

📩 Contact us today to discuss the opportunity

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

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Senior DevSecOps Engineer

Contract | Dublin City Centre (Hybrid - 2 Days Onsite Per Week)

Overview

I'm looking to speak with Senior DevOps & Cloud Security Engineers to join a high-performing technology team delivering secure, scalable, and cloud-native solutions within a complex enterprise environment.

This role offers the opportunity to work across cloud infrastructure, platform engineering, automation, security, and reliability initiatives. The successful candidate will play a key role in designing, implementing, and supporting modern cloud platforms while driving best practices across DevOps, Security, and Site Reliability Engineering disciplines.

Key Responsibilities

Design, deploy, secure, and support cloud-native platforms and applications within AWS environments.Build and manage infrastructure using Infrastructure as Code (Terraform).Administer and support Kubernetes-based container platforms, including Amazon EKS.Implement secure networking, connectivity, and cloud architecture best practices.Develop and maintain cloud security controls, identity management, and access governance frameworks.Contribute to CI/CD pipeline development and automation initiatives.Champion DevSecOps practices throughout the software delivery lifecycle.Implement monitoring, logging, observability, and alerting solutions to enhance platform reliability.Support Linux-based and containerised workloads across development and production environments.Collaborate with cross-functional engineering, development, security, and operations teams.Troubleshoot complex infrastructure, application, and platform issues.Drive operational excellence through automation, standardisation, and continuous improvement initiatives.Support the ongoing enhancement of cloud governance, resilience, and platform security capabilities.

Required Experience

Strong hands-on experience designing and supporting solutions within AWS cloud environments.Extensive experience with Terraform and Infrastructure as Code methodologies.Commercial experience with Kubernetes and container orchestration platforms.Strong knowledge of cloud networking, security, and enterprise infrastructure design.Experience implementing IAM, security controls, and cloud governance frameworks.Background working within DevOps, Platform Engineering, SRE, or Cloud Operations functions.Experience designing and supporting CI/CD pipelines and deployment automation.Strong Linux administration skills.Experience with monitoring, observability, and operational tooling.Excellent troubleshooting and problem-solving skills across infrastructure and application layers.Understanding of modern application architectures, microservices, and cloud-native technologies.

Desirable Skills

Experience with Python, scripting, or infrastructure automation.Exposure to cloud security, compliance, vulnerability management, or security engineering practices.Experience supporting end-to-end web applications and distributed systems.Knowledge of database technologies within cloud environments.Experience with AWS Landing Zone frameworks and enterprise cloud governance models.Familiarity with platform engineering, zero-trust principles, or security-by-design approaches.

Contract Details

Dublin City CentreHybrid Working Model2 Days Per Week OnsiteCompetitive daily rateLong-term programme of work within a modern cloud and infrastructure environment

This opportunity would suit a Senior DevOps Engineer, Cloud Engineer, Platform Engineer, SRE, or Cloud Security Engineer looking to work across automation, cloud infrastructure, Kubernetes, security, and enterprise-scale platform delivery. If you have any questions, apply and we can have a call today.

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

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

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Cloud & Security Engineer (12-Month Contract)

Location: Dublin (Hybrid - 3 days onsite)
Contract: 12 Months | Daily Rate

An Irish organisation is looking for an experienced Cloud & Security Engineer to support and enhance its Microsoft cloud and security environment.

You'll play a key role across cloud infrastructure, identity, endpoint security and incident response while helping to strengthen security posture and modernise IT operations.

Key ResponsibilitiesManage Microsoft Entra ID, Conditional Access, MFA and Privileged Identity Management (PIM)Administer Microsoft Intune and Microsoft Defender XDRMonitor and investigate security events using Microsoft SentinelSecure Azure environments using Zero Trust principlesProvide Level 3 support and technical leadershipSupport ITIL processes including Incident, Change and Problem ManagementProduce technical documentation, runbooks and operational proceduresWhat You'll NeedStrong experience with Microsoft Azure and Microsoft security technologiesHands-on expertise with Entra ID, Intune, Defender XDR and SentinelExperience with security incident response and identity & access managementExcellent troubleshooting and stakeholder communication skillsAZ-500 certification is essential (SC-200, SC-300 and/or MD-102 also highly desirable)

If you're looking for a long-term contract working with modern Microsoft cloud and security technologies, we'd be happy to tell you more.

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

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