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Overall purpose of the job:

Reporting to the CNI Service Assurance and Orchestration Manager, the overall purpose of the role is to:

Support regulatory compliance within the scope of Operational Technology (OT) and Information Technology (IT) support services providedProvide specific guidance on the operational implementation of controls to support compliance against the following:ISO 27001 - Security ManagementCyber Assessment Framework (CAF)Network Information Systems (NIS)Center for Internet Security (CIS) BenchmarksIEC 62443

Key responsibilities for this job:

Governance

Define and maintain operational policies, standards, and procedures for compliance against OT and IT security frameworksProvide technical compliance guidance to project and engineering teams during new builds and ongoing operations.Support the handover and implementation of compliance processes, procedures and controls within operational engineering teams, as part of service implementation or transition

Risk Management

Identify, assess, and prioritise and compliance risks associated with new implementation projects and existing supported systems.Map compliance framework objectives to technical controls within the scope of supported assets under contract.Review and update controls based on regular assessment.

Compliance

Ensure adherence to regulatory frameworks (e.g., CAF, ISO, CIS, IEC 62443).Ensure adherence to customer contractual compliance obligations.Coordinate audits and manage compliance reporting.

Control Framework

Define technical compliance controls for projects and operational environments.Validate implementation of compliance controls during build phases and monitor effectiveness during support phases.

Monitoring & Reporting

Implement continuous monitoring processes for compliance and risk indicators.Provide regular customer aligned reports on compliance status.

Knowledge and experience required:

Active SC clearance or eligibilityStrong knowledge of regulatory standards and industry frameworks, including:Center for Internet Security (CIS) benchmarkingNetwork and Information Systems (NIS)National Cyber Security Centre (NCSC) Cyber Assessment Framework (CAF)ISO Standards - particularly ISO27001 (Information Security Management)IEC 62443 - especially risk management elementsExpertise in risk assessment methodologies and compliance management tools.Excellent communication and stakeholder engagement skills.Experience of implementation/governance of technical compliance regimes in an operational context - ideally within an OT environment

Working knowledge of some or all the following technology types:Server operating systemsNetworkingFire-wallingVirtualisationEndpoint devicesEncryptionAnti-virus and malwareVulnerability ManagementSecurity information and event management (SIEM)Intrusion Detection and Prevention systems (IDS and IPS)

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

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This position is ideal for an engineer who enjoys solving complex problems and building new capabilities from the ground up. The role goes beyond traditional security scripting, SOAR configuration, or test automation. You will help develop intelligent systems that can augment and automate the work performed by threat intelligence, threat hunting, detection engineering, investigation, and incident response teams.

Key ResponsibilitiesDesign, develop, test, deploy, and operate production-grade security automation and AI-driven workflows.Build intelligent agents capable of securely accessing security data, invoking approved tools, maintaining context, and executing multi-step workflows.Develop automation that can assist with:Threat intelligenceThreat huntingDetection engineeringSecurity investigationsIncident responseSecurity data analysisApply modern AI and automation techniques, including:Tool callingRetrieval-augmented generation (RAG)Structured generationPlanningReflectionVerificationModel routingMulti-agent coordinationDesign mechanisms for memory, context management, task recovery, escalation, and human approval.Build automation designed to reduce operational noise and false positives while improving the speed and consistency of security response.Develop appropriate security controls and guardrails around AI agents and automated workflows.Create evaluation and testing strategies to measure the accuracy, reliability, security, and performance of automation.Evaluate emerging AI models, agent frameworks, automation platforms, and orchestration technologies.Prototype new capabilities and transition successful solutions into reliable production environments.Work closely with threat intelligence analysts, threat hunters, detection engineers, incident responders, and security-data engineers to understand operational challenges.Translate security requirements and operational processes into scalable technical solutions.Develop clean, maintainable, scalable, and well-documented code.Troubleshoot, monitor, and continuously improve automation running in production.Participate in architecture, design, code reviews, and technical decision-making.Identify opportunities to automate repetitive or time-sensitive security processes and improve overall SOC efficiency.Required QualificationsBachelor's degree in Computer Science, Engineering, Cybersecurity, Information Systems, or a related field, or equivalent professional experience.8+ years of experience in software engineering, security engineering, automation engineering, AI/ML engineering, or a related technical field.Strong hands-on software development experience.Experience building automation solutions or AI-powered applications for production environments.Experience working with Large Language Models (LLMs), generative AI, or agentic AI technologies.Strong programming skills in Python and/or another modern programming language.Experience integrating applications with APIs, tools, data sources, and external systems.Understanding of AI agent concepts such as tool use, planning, context management, retrieval, memory, and verification.Experience designing and implementing reliable, scalable technical solutions.Strong analytical and problem-solving skills.Ability to work with both software engineers and security professionals to translate operational challenges into technical solutions.Preferred QualificationsExperience building agentic AI systems or autonomous security workflows.Experience with security automation, SOAR, SIEM, or security orchestration platforms.Experience with cybersecurity operations, threat intelligence, threat hunting, detection engineering, or incident response.Experience with RAG, vector databases, embeddings, semantic search, or knowledge retrieval.Experience with multi-agent architectures and AI orchestration frameworks.Experience developing AI evaluation frameworks, testing harnesses, or benchmarking processes.Experience with Kubernetes, cloud platforms, microservices, APIs, and distributed systems.Experience implementing human-in-the-loop controls and approval workflows.Experience taking AI/automation solutions from proof of concept through production deployment.Familiarity with security controls and best practices for deploying AI systems in enterprise environments.What We're Looking For

We're looking for a builder who can take an ambiguous security problem and turn it into a working, scalable automation solution.

The ideal candidate is comfortable getting hands-on with code, experimenting with emerging AI technologies, integrating multiple systems, and figuring out how to move an idea from prototype to production.

You don't necessarily need to come from a cybersecurity background. Strong AI, software engineering, and automation experience is the priority. You'll have the opportunity to work alongside experienced security professionals who can provide the domain expertise.

The Opportunity

Comcast's Cyber Security Operations Center is working toward a machine-speed SOC capable of responding quickly and effectively to large-scale and concurrent security incidents.

As a Senior Security Automation Engineer, you'll help build the intelligent automation that makes that possible-reducing manual work, cutting through noise and false positives, and giving security teams the ability to focus their expertise where it matters most.

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

Read less

This position is ideal for an engineer who enjoys solving complex problems and building new capabilities from the ground up. The role goes beyond traditional security scripting, SOAR configuration, or test automation. You will help develop intelligent systems that can augment and automate the work performed by threat intelligence, threat hunting, detection engineering, investigation, and incident response teams.

Key ResponsibilitiesDesign, develop, test, deploy, and operate production-grade security automation and AI-driven workflows.Build intelligent agents capable of securely accessing security data, invoking approved tools, maintaining context, and executing multi-step workflows.Develop automation that can assist with:Threat intelligenceThreat huntingDetection engineeringSecurity investigationsIncident responseSecurity data analysisApply modern AI and automation techniques, including:Tool callingRetrieval-augmented generation (RAG)Structured generationPlanningReflectionVerificationModel routingMulti-agent coordinationDesign mechanisms for memory, context management, task recovery, escalation, and human approval.Build automation designed to reduce operational noise and false positives while improving the speed and consistency of security response.Develop appropriate security controls and guardrails around AI agents and automated workflows.Create evaluation and testing strategies to measure the accuracy, reliability, security, and performance of automation.Evaluate emerging AI models, agent frameworks, automation platforms, and orchestration technologies.Prototype new capabilities and transition successful solutions into reliable production environments.Work closely with threat intelligence analysts, threat hunters, detection engineers, incident responders, and security-data engineers to understand operational challenges.Translate security requirements and operational processes into scalable technical solutions.Develop clean, maintainable, scalable, and well-documented code.Troubleshoot, monitor, and continuously improve automation running in production.Participate in architecture, design, code reviews, and technical decision-making.Identify opportunities to automate repetitive or time-sensitive security processes and improve overall SOC efficiency.Required QualificationsBachelor's degree in Computer Science, Engineering, Cybersecurity, Information Systems, or a related field, or equivalent professional experience.8+ years of experience in software engineering, security engineering, automation engineering, AI/ML engineering, or a related technical field.Strong hands-on software development experience.Experience building automation solutions or AI-powered applications for production environments.Experience working with Large Language Models (LLMs), generative AI, or agentic AI technologies.Strong programming skills in Python and/or another modern programming language.Experience integrating applications with APIs, tools, data sources, and external systems.Understanding of AI agent concepts such as tool use, planning, context management, retrieval, memory, and verification.Experience designing and implementing reliable, scalable technical solutions.Strong analytical and problem-solving skills.Ability to work with both software engineers and security professionals to translate operational challenges into technical solutions.Preferred QualificationsExperience building agentic AI systems or autonomous security workflows.Experience with security automation, SOAR, SIEM, or security orchestration platforms.Experience with cybersecurity operations, threat intelligence, threat hunting, detection engineering, or incident response.Experience with RAG, vector databases, embeddings, semantic search, or knowledge retrieval.Experience with multi-agent architectures and AI orchestration frameworks.Experience developing AI evaluation frameworks, testing harnesses, or benchmarking processes.Experience with Kubernetes, cloud platforms, microservices, APIs, and distributed systems.Experience implementing human-in-the-loop controls and approval workflows.Experience taking AI/automation solutions from proof of concept through production deployment.Familiarity with security controls and best practices for deploying AI systems in enterprise environments.What We're Looking For

We're looking for a builder who can take an ambiguous security problem and turn it into a working, scalable automation solution.

The ideal candidate is comfortable getting hands-on with code, experimenting with emerging AI technologies, integrating multiple systems, and figuring out how to move an idea from prototype to production.

You don't necessarily need to come from a cybersecurity background. Strong AI, software engineering, and automation experience is the priority. You'll have the opportunity to work alongside experienced security professionals who can provide the domain expertise.

The Opportunity

Comcast's Cyber Security Operations Center is working toward a machine-speed SOC capable of responding quickly and effectively to large-scale and concurrent security incidents.

As a Senior Security Automation Engineer, you'll help build the intelligent automation that makes that possible-reducing manual work, cutting through noise and false positives, and giving security teams the ability to focus their expertise where it matters most.

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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Fiber Engineer

Location: Remote
Contract: 12+ Months

Overview

We are seeking an experienced Fiber Engineer to support fiber network testing, troubleshooting, and remediation activities across ISP and OSP environments. This role will focus on OTDR analysis, fiber characterization, bidirectional testing, and documenting findings to ensure network performance and reliability.

Required Qualifications5+ years of experience in Fiber Optics or TelecommunicationsExperience with ISP and OSP fiber networksStrong expertise with OTDR testing and troubleshootingExperience performing CD/PMD, bidirectional, and power meter/laser testingKnowledge of fusion splicing, fiber repair, and remediationExperience with fiber end-face inspection and cleaningProficiency with Microsoft Word and ExcelStrong communication, documentation, and problem-solving skillsAbility to travel as required for field workKey ResponsibilitiesPerform OTDR testing to validate fiber paths and identify faults, splices, bends, and signal lossConduct fiber characterization, bidirectional testing, and power/loss analysisTroubleshoot fiber network issues and recommend remediation solutionsPerform fusion splicing and fiber repairs as neededPrepare test reports, redlined fiber documentation, and demarcation mapsCoordinate with vendors, project managers, and internal teams to support project executionTravel to customer sites for testing, troubleshooting, and remediation activitiesWhat You'll OwnFiber testing and validationOTDR analysis and troubleshootingRemediation and fusion splicing activitiesTechnical reporting and documentationVendor and stakeholder communicationFiber network performance verificationDeliverablesOTDR, CD/PMD, and power/loss test reportsRedlined fiber path documentation and demarcation mapsDocumented remediation and retest resultsTest findings and recommendations shared with vendors and project stakeholders

Required: Prior experience in Fiber Testing, OTDR Analysis, ISP/OSP Networks, Fiber Characterization, and Telecommunications environments.

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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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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