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Senior Platform Engineer (Kubernetes) | Contract

We're partnering with a leading organisation seeking an experienced Senior Platform Engineer to help develop, automate and scale their cloud-native infrastructure environment.

This is an excellent opportunity for an engineer who enjoys building robust Kubernetes platforms, driving automation, and working with modern cloud technologies in a highly collaborative environment.

What You'll Be Doing

Design, build and support Kubernetes-based platform infrastructure.Drive automation across infrastructure and operational processes using Infrastructure as Code principles.Develop and maintain tooling using technologies such as Terraform, Ansible, Python and Go.Enhance platform reliability, scalability, security and performance.Implement and improve observability, monitoring and alerting solutions.Work closely with engineering teams to support cloud-native application deployments.Contribute to CI/CD and GitOps-driven delivery practices.Research and introduce new technologies and best practices across the platform estate.Explore opportunities to leverage AI and automation to improve engineering efficiency and operational excellence.

What We're Looking For

Strong experience within Platform Engineering, Infrastructure Engineering, DevOps or Site Reliability Engineering.Proven hands-on experience running Kubernetes in production environments.Strong Linux administration and troubleshooting skills.Experience with Infrastructure as Code and automation tooling, including Terraform and Ansible.Development or scripting experience with Python, Go or similar technologies.Experience with cloud-native tooling, containers, CI/CD pipelines and GitOps methodologies.Good understanding of networking concepts including DNS, load balancing, ingress/egress, TLS and firewalls.Experience with observability and monitoring tools such as Prometheus and Grafana.Strong communication and stakeholder engagement skills.Ability to work effectively within fast-paced, collaborative engineering teams.

Desirable Experience

Kubernetes certifications such as CKA.Experience with Kubernetes security, governance and policy management.Exposure to service mesh technologies.Cloud platform certifications across AWS, Azure or GCP.Experience introducing new technologies and driving platform improvements at scale.

Apply Now

If you're a skilled Kubernetes / Platform Engineer looking for your next contract opportunity and enjoy working with modern cloud technologies, we'd love to hear from you.

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

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WS Security Architect - Contract

We are seeking an experienced AWS Security Architect to lead the design and implementation of security controls across our AWS estate. This role will be responsible for establishing secure architecture standards, driving security best practices, and ensuring AWS services are deployed in a scalable, compliant, and resilient manner.

Working closely with Cloud Engineering, Platform, DevOps, and Cyber Security teams, you will provide both strategic direction and hands-on technical guidance to ensure security is embedded throughout the lifecycle of our AWS platforms and applications.

This is a delivery-focused role that combines architecture, engineering, and governance, enabling teams to adopt AWS services securely whilst maintaining agility and operational excellence.

Key Responsibilities

AWS Security Architecture

Define and maintain the security architecture roadmap for AWS cloud environments.Design secure AWS landing zones, account structures, network architectures, and operational security frameworks.Develop AWS security reference architectures, reusable patterns, and guardrails that support consistent deployment across teams.Ensure security controls are embedded into Infrastructure as Code (Terraform, CloudFormation or similar) and platform automation practices.Provide technical leadership on AWS-native security servicesDesign and govern identity, access management, privileged access, encryption, key management, and network segmentation strategies.Review solution architectures and provide security guidance for new AWS workloads and cloud transformation initiatives.Champion Security-by-Design principles across engineering and delivery teams.

DevSecOps & Automation

Embed security controls throughout CI/CD pipelines and cloud delivery processes.Drive the adoption of automated security testing, compliance monitoring, and policy-as-code approaches.Develop and enhance security guardrails to prevent misconfigurations and improve cloud security posture.Work with platform engineering teams to integrate security tooling into deployment pipelines and operational workflows.Promote secure software delivery practices and cloud-native security automation.

Governance, Risk & Compliance

Partner with Cyber Security, Risk, and Cloud Governance teams to align AWS security controls with organisational policies and regulatory requirements.Conduct threat modelling, security architecture reviews, and risk assessments for AWS-hosted solutions.Support compliance initiatives aligned to frameworks such as ISO 27001, CIS AWS Foundations Benchmark, NIST, and SOC 2.Ensure security monitoring, logging, detection, and response capabilities are appropriately designed and implemented across AWS environments.Provide expert advice on cloud security risks and remediation strategies.

Desired Experience

Proven experience as an AWS Security Architect or similar cloud-focused security role.Deep understanding of AWS cloud architecture and AWS security best practices.Strong hands-on experience implementing AWS-native security controls across enterprise-scale environments.Experience designing secure multi-account AWS environments using AWS Organizations and Control Tower.Expertise in AWS IAM, networking, security monitoring, encryption, secrets management, and security operations.Strong knowledge of Infrastructure as Code security principles using Terraform, CloudFormation, or similar technologies.Experience implementing DevSecOps practices and integrating security controls into CI/CD pipelines.Understanding of cloud security frameworks, risk management, and regulatory compliance requirements.

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 Agency in relation to this vacancy.

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

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Senior IAM Engineer (Microsoft Entra ID)

Dublin (Hybrid) | 12-Month Daily Rate Contract | Competitive Day Rate

We're working with a well-established enterprise organisation embarking on a significant Identity & Access Management transformation. They're looking for an experienced Senior IAM Engineer with deep expertise across the Microsoft identity stack, particularly Microsoft Entra ID, to play a key role in strengthening and modernising their identity security capabilities.

This is a hands-on engineering role where you'll design, implement and enhance secure identity solutions across a complex Microsoft environment.

Key Responsibilities

Design, implement and support Microsoft Entra ID solutions across the organisation.

Lead the implementation and optimisation of Conditional Access policies and authentication controls.

Configure and manage Multi-Factor Authentication (MFA), Passwordless Authentication and Self-Service Password Reset (SSPR).

Drive Zero Trust identity initiatives and improve the organisation's overall security posture.

Manage identity lifecycle processes, including Joiner, Mover and Leaver workflows.

Integrate cloud and on-premises identities using Entra Connect and Cloud Sync.

Administer Privileged Identity Management (PIM) and privileged access controls.

Implement Identity Governance capabilities, including Access Reviews and Entitlement Management.

Support Microsoft Defender for Identity and identity threat detection initiatives.

Automate identity administration using PowerShell and Microsoft Graph API.

Collaborate with Cyber Security, Infrastructure and Cloud teams to deliver secure identity solutions.

Produce technical documentation and provide knowledge transfer where required.

Required Experience

5+ years' experience working within Identity & Access Management.

Strong hands-on experience with Microsoft Entra ID (Azure AD).

Proven experience implementing and managing Conditional Access policies.

Experience with Multi-Factor Authentication, Passwordless Authentication and modern identity security controls.

Hands-on experience with Privileged Identity Management (PIM).

Experience with Identity Governance, Access Reviews and Entitlement Management.

Knowledge of Hybrid Identity, Active Directory and Entra Connect.

Strong understanding of authentication protocols including SAML, OAuth 2.0 and OpenID Connect.

Experience implementing Zero Trust security principles.

Strong PowerShell scripting skills.

Excellent communication skills with the ability to engage technical and non-technical stakeholders.

What's on Offer

Initial 12-month daily rate contract with strong extension potential.

Hybrid working arrangement.

Opportunity to work on a large-scale Microsoft Identity transformation programme.

Exposure to the latest Microsoft Identity and Security technologies.

Collaborative, highly skilled technical environment.

Interested?

If this sounds like the right opportunity for you, we'd love to hear from you. Apply today or get in touch for a confidential discussion.

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

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GRC Lead

📍 Ireland | Hybrid

Help organisations become more resilient.

Cyber Security isn't just about technology.

The organisations that succeed are the ones with strong governance, mature security processes and practical risk management frameworks.

We're looking for an experienced GRC Lead to help enterprise organisations assess where they are today and build a clear roadmap for where they need to be.

You'll work closely with senior stakeholders, delivering cyber maturity assessments, governance programmes and security improvement initiatives that make a genuine business impact.

If you enjoy working with customers, solving strategic security challenges and helping organisations mature their security capability, we'd love to hear from you.

You'll be involved in:

ISO 27001 maturity assessmentsISO 27001 implementationsSecurity governance programmesCyber maturity assessmentsRisk management frameworksNIST Cyber Security FrameworkSecurity policies, standards and proceduresGRC tooling and governance processes

We're looking for someone with:

✔ 6-12 years' Cyber Security experience

✔ Strong Governance, Risk & Compliance background

✔ ISO 27001 implementation experience

✔ Experience delivering maturity assessments

✔ Excellent stakeholder management skills

✔ Client-facing consulting experience

Why join?

Work on strategic cyber transformation programmesExposure to senior executive stakeholdersExcellent progression opportunitiesStrong learning and certification supportHybrid workingCompetitive salary, bonus and benefits

Interested? Let's have a confidential conversation.

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

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Identity & Access Management Architect

📍 Ireland | Hybrid

Design the future of enterprise identity.

Identity has become the new security perimeter, and we're looking for an Identity & Access Management Architect who wants to solve some of the most challenging IAM problems in enterprise environments.

You'll join a growing Cyber Security practice delivering large-scale identity transformation projects for some of Ireland's most recognised organisations. This isn't a support role and it isn't BAU. You'll be designing solutions, leading technical conversations and helping organisations modernise how they manage identity across cloud-first environments.

If you've built your career around Microsoft Identity and enjoy working directly with customers to solve complex security challenges, this is a fantastic opportunity to take the next step.

You'll be working with technologies including:

Microsoft Entra IDSailPointMicrosoft 365 SecurityIdentity Governance & AdministrationConditional AccessRBAC & Privileged Identity ManagementIdentity Lifecycle Management

What we're looking for

✔ 5-10 years' experience within Identity & Access Management

✔ Strong Microsoft Identity background

✔ Hands-on Entra ID experience

✔ SailPoint implementation experience

✔ Experience designing secure IAM solutions

✔ Strong stakeholder engagement and consulting skills

Why consider this role?

Join a rapidly growing Cyber Security teamWork on enterprise-scale identity transformation programmesClear progression from Senior Consultant into Manager and beyondStrong investment in certifications and professional developmentExcellent bonus and benefits packageHybrid working

If you'd like to hear more, get in touch for a confidential conversation.

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

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AI Engineer - LLMs, RAG & Inference Systems
Big Tech, Dublin - Full-Time

One of the world's leading technology companies is scaling its AI engineering function in Dublin - building production AI systems at the frontier, not research that never ships. This is a full-time seat on a team shipping LLM-powered products used at genuine scale.

What you'll work on:

Designing and deploying LLM-powered applications in production, not prototypesRAG architecture - retrieval pipelines, vector search, embedding strategy, chunking and re-ranking for relevance at scaleInference optimisation - quantisation, batching, and latency/throughput tradeoffs across large GPU fleetsAgentic systems - tool use, multi-step reasoning, orchestration frameworks for autonomous task executionFine-tuning and evaluation pipelines for foundation models, including guardrails and eval harnesses for production reliabilityCross-functional work with research, infra, and product teams - translating frontier techniques into shipped features

What we're looking for:

~2 years' experience, with genuine hands-on exposure to LLMs in production (not just personal projects)Strong Python, comfortable with PyTorch or equivalent production ML infraPractical experience with LLM APIs (OpenAI, Anthropic, or open-source stacks - Llama, Mistral) and prompt/context engineeringUnderstanding of vector databases (Pinecone, Weaviate, pgvector) and RAG design tradeoffsBonus: inference infra experience (vLLM, TensorRT, Triton) or open-source AI tooling contributionsComfortable in a fast-moving, ambiguous environment where the tooling changes every few months

Team & setup:

Embedded within a core AI product engineering team, Dublin officeFull-time, permanent - Big Tech-scale package with equity componentGenuine growth path into senior/staff AI engineering as the Dublin function scales

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

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