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Infrastructure & Cloud Operations Engineer

Dublin | Hybrid | Daily Rate Contract | ~6 Months

We're looking for an experienced Infrastructure & Cloud Operations Engineer to join a large, established organisation on an initial 6-month daily rate contract.

The role sits within the IT infrastructure team and will focus on supporting, maintaining and improving a mix of on-premises and cloud infrastructure, with a strong emphasis on Microsoft Azure, Microsoft 365 and modern infrastructure operations.

You'll work closely with teams across infrastructure, cloud, security, service desk and applications, as well as external technology partners, to keep critical systems secure, stable and highly available.

Key Responsibilities

Infrastructure & Cloud Operations

Maintain, configure and support on-premises and cloud infrastructure across servers, storage, virtualisation, networking and core compute environments.

Monitor system performance, capacity and availability, identifying and implementing improvements to reliability and resilience.

Carry out patching, upgrades and configuration changes in line with established change processes.

Troubleshoot complex infrastructure issues and act as an escalation point for 1st and 2nd line teams.

Troubleshoot hardware issues and coordinate repairs or replacements where required.

Microsoft Azure

Administer, support and optimise Microsoft Azure infrastructure and platform services.

Manage Azure resources including virtual machines, storage, networking, security controls and identity services.

Support cloud security initiatives across Microsoft Defender, Azure security controls, Conditional Access and Zero Trust.

Support cloud migration, infrastructure modernisation and wider Azure adoption projects.

Work with Azure Landing Zone standards, subscriptions and RBAC.

Microsoft 365 & Modern Workplace

Support and administer Microsoft 365 services including Teams, SharePoint, Exchange Online and OneDrive.

Administer Entra ID, Conditional Access, MFA and device compliance.

Monitor Microsoft 365 service health and resolve Tier 2 issues.

Support endpoint management and modern workplace initiatives using Microsoft Intune.

Incident, Problem & Change Management

Manage and resolve infrastructure incidents within agreed SLAs.

Follow ITIL-based processes across incident, problem and change management.

Participate in root-cause analysis and continuous improvement initiatives.

Provide clear technical updates and communication to relevant stakeholders.

Security & Compliance

Implement and maintain infrastructure security controls in collaboration with security teams.

Remediate vulnerabilities and apply security patches across infrastructure.

Support Zero Trust and wider security initiatives.

Ensure infrastructure remains aligned with relevant security, regulatory and organisational standards.

Projects & Continuous Improvement

Support infrastructure upgrades, migrations and transformation projects.

Contribute to cloud adoption and infrastructure modernisation initiatives.

Identify opportunities for automation, optimisation and simplification.

Create and maintain technical documentation, support procedures and operational runbooks.

Essential Experience

Experience in infrastructure engineering, cloud operations or a similar technical operations role.

Strong experience across Microsoft Windows Server, Active Directory, Group Policy, DNS and DHCP.

Strong Microsoft 365 experience across Teams, OneDrive, Exchange Online, Intune and Entra ID.

Hands-on experience with Microsoft Azure infrastructure and cloud services.

Strong understanding of virtualisation, ideally VMware, storage and backup technologies.

Experience working within ITIL-based incident, problem and change management processes.

Desirable Skills

PowerShell or another scripting language.

Azure certifications such as AZ-104 or AZ-800.

Microsoft 365 Administrator certification.

Networking certifications such as CCNA/CCDA or equivalent.

ITIL Foundation or equivalent.

Security certification such as CISSP.

Experience with infrastructure monitoring or device analytics tools.

Exposure to Azure Kubernetes Service (AKS).

Knowledge of CI/CD, GitHub Enterprise and Infrastructure as Code (IaC).

Experience supporting cloud migration or infrastructure modernisation programmes.

The Person

We're looking for someone who is:

A strong technical troubleshooter who enjoys getting to the root cause of problems.

Comfortable working across both traditional infrastructure and modern cloud environments.

Proactive and able to take ownership without needing constant direction.

Comfortable dealing with ambiguity, competing priorities and occasional urgent issues.

Collaborative and confident working with internal teams, vendors and external partners.

Methodical, detail-oriented and strong on technical documentation.

Adaptable and interested in keeping up with evolving infrastructure and cloud technologies.

Focused on continuous improvement and looking for ways to make infrastructure more reliable, secure and efficient.

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

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The Role

We are seeking a highly motivated and skilled DevOps Engineer to join our team. You'll play a
crucial role in building, deploying, and maintaining scalable and reliable systems and
infrastructure, working closely with development teams to ensure operational efficiency and
smooth deployment pipelines.

What You'll Do

* Design, implement, and maintain CI/CD pipelines to streamline development
workflows.
* Build and manage scalable infrastructure for AI model deployment and lifecycle
management.
* Automate infrastructure provisioning and management using tools like Terraform,
Ansible, or CloudFormation.
* Optimize cloud-based and on-premises resources for scalability and cost efficiency.
* Manage and fine-tune queuing systems and real-time streaming architectures.
* Monitor and troubleshoot production systems to ensure uptime and performance.
* Implement logging, monitoring, and alerting solutions using tools such as Prometheus,
Grafana, ELK stack, etc.
* Set up comprehensive monitoring for both system metrics and ML model performance.
* Conduct root cause analyses and post-mortems to improve system reliability.
* Collaborate with development and QA teams to deploy new features into production
seamlessly.
* Promote best practices in system architecture, security, and performance.
* Participate in a rotating on-call schedule for production system support.
* Ensure infrastructure complies with security and compliance standards (e.g., SOC2,
ISO27001).
* Securely manage secrets and credentials using tools like Vault or AWS Secrets
Manager.

What You'll Bring
* Bachelor's degree in Computer Science, Engineering, or a related field (or equivalent
experience).
* Proficiency in at least one scripting language: Python, Bash, or Go.
* Hands-on experience with cloud platforms like AWS, Azure, or Google Cloud.
* Skilled in containerization and orchestration with Docker and Kubernetes.
* Experience using CI/CD tools such as Azure DevOps, Jenkins, GitLab CI/CD, or CircleCI.
* Knowledge of monitoring and observability tools like Prometheus, Datadog, New Relic,
Grafana, or PagerDuty.
* Understanding of networking fundamentals including DNS, load balancing, and
firewalls.
* Familiarity with real-time streaming architectures for AI and data applications.

Great Pluses / Preferred Experience
* Experience with Infrastructure as Code (IaC) tools like Terraform or Pulumi.
* Understanding of service mesh technologies like Istio or Linkerd.
* Familiarity with database scaling and administration, including VectorDBs, SQL, and
NoSQL systems.
* Previous experience in a high-traffic production environment

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

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DevOps / CI/CD Platform Engineer

We're seeking a hands-on engineer with experience in CI/CD, deployment automation, systems operations, containers, and production support. This position will help maintain the tools and processes that enable software teams to continuously deliver reliable applications.

What You'll Be Doing

Support the full lifecycle of technical products and systems

Troubleshoot, diagnose, and fix production software issues

Build and maintain monitoring solutions

Perform software maintenance and implement operational solutions

Automate software deployments using configuration and automation tools

Support continuous integration and delivery processes

Develop standards for measuring product quality and release readiness

Recommend improvements to testing techniques and processes

Provision and manage applications in virtual and cloud environments

Collaborate with QA and Software Engineers to maintain continuous delivery

Support deployment, network operations, and systems administration

Use scripting and coding to automate operational processes

Work with containerized applications using Docker and Kubernetes

What You Bring

Bachelor's degree in Engineering or related field

3-6 years of relevant experience

Experience with Jenkins and continuous integration

Experience with Ansible, Puppet, or Chef

Experience with GitHub, branching, and tagging

Experience with Docker and Kubernetes

Experience with systems and IT operations

Experience with virtual and cloud infrastructure

AWS and OpenStack experience preferred

Strong scripting and coding skills

Experience working with open-source technologies and tools

Ability to build strong working relationships with QA and Software Engineering

This role is a good match for engineers who enjoy being close to the software delivery process while also working hands-on with infrastructure, automation, and production systems.

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

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DevOps / Automation Engineer

We're looking for a DevOps / Automation Engineer to support the design, development, implementation, and ongoing support of production software systems. This role is a strong fit for someone who enjoys automation, deployment, troubleshooting, and working closely with software engineering and QA teams.

What You'll Do

Design, develop, implement, and analyze technical products and systems

Troubleshoot, diagnose, and resolve production software issues

Develop monitoring solutions and perform ongoing software maintenance

Automate software deployment and operational processes

Develop standards and procedures for product quality and release readiness

Recommend improvements to testing techniques, development processes, and system reliability

Provision and manage applications across virtual and cloud infrastructure

Work closely with QA and Software Engineers to support continuous delivery of critical systems

Support deployment and network operations through scripting and automation

What We're Looking For

Bachelor's degree in Engineering or a related field

3-6 years of relevant engineering, DevOps, systems, or infrastructure experience

Experience with automation tools such as Puppet, Chef, or Ansible

Experience with Jenkins and continuous integration

Experience with GitHub, including branching and tagging strategies

Experience with Docker and Kubernetes

Experience working with systems and IT operations

Strong scripting and coding capabilities

Experience with virtual and cloud infrastructure; AWS and OpenStack preferred

Ability to work with a variety of open-source technologies and tools

Strong communication and relationship-building skills with QA and Software Engineering teams

Ideal Background
Candidates coming from DevOps, infrastructure engineering, systems engineering, deployment engineering, or automation-focused roles are encouraged to apply.

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

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Overview:
Own and evolve our Jenkins Shared Library powering multi-language builds (Java/Maven, Node/NPM, Python, Helm, Terraform, containers). Deliver fast, secure, provenance-rich pipelines (SLSA, SBOM, digests) and strengthen supply‑chain integrity across teams.

Core Responsibilities:

Design and maintain Groovy pipeline steps (build, test, package, scan, deploy).Extend Python tooling for SLSA provenance, SBOM generation, hash/digest accuracy, and security scan aggregation (SonarQube, Sonatype IQ, SAST/Container).Optimize performance (parallel builds, caching, scope-reduced BOMs, dependency prefetch).Ensure artifact integrity (correct SHA1/SHA256 mapping, reproducible inputs, evidence modeling).Refactor legacy scripts (remove global state, consolidate hashing, standardize templates).Document ci-config.yaml standards and usage patterns.Mentor engineers on secure pipeline development and supply-chain practices.Troubleshoot and prevent pipeline incidents.

Essential Skills: -

7+ years engineering; 3+ in CI/CD platform or DevSecOps.Ownership and collaborative mindsets, able to operate with minimal supervision. Advanced Python development experience - (best coding practises, APIs, JSON/YAML processing, tooling scripts) - should demonstrate key projects in CVStrong Jenkins + Groovy shared library expertise.Deep Maven/NPM/Python packaging knowledge; exposure to Helm/Terraform and container image metadata.Supply-chain security (SLSA, CycloneDX SBOM, digests).Experience with SonarQube, Sonatype IQ, container and SAST scanning.Proven performance tuning (caching, parallelization, dependency pruning).Compliance Awareness.

Nice-to-Have

Artifact signing / attestations (cosign, OCI).Terraform module and Helm chart publishing patterns.GitOps or release automation experience.GCP/AWS cloud experience

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

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Role Title: AWS DevOps Engineer

Location: Sheffield (Hybrid - 2 days per week onsite)

Role Category: Inside IR35

Overview:

We're recruiting for an experienced AWS DevOps Engineer to join an enterprise engineering team within a leading global financial services organisation.

This role offers the opportunity to work on large-scale AWS environments, combining cloud infrastructure, software engineering, automation, CI/CD and Infrastructure as Code. You'll work closely with engineering, architecture, cybersecurity and operations teams to deliver secure, resilient and highly available cloud-native solutions.

Responsibilities:

Design, build and maintain AWS cloud infrastructure across compute, storage, networking and IAM services.Develop and maintain Infrastructure as Code using Terraform and other automation tools.Build and support CI/CD pipelines for infrastructure and application deployments.Develop automation and backend services using Python and Golang.Design and maintain RESTful APIs, microservices and distributed cloud-native applications.Work with Docker, Kubernetes and serverless technologies across AWS environments.Support relational and NoSQL databases, including database schema and deployment changes.Implement and maintain database change management using Liquibase or similar tooling.Implement monitoring, logging, alerting and distributed tracing using technologies such as Splunk, ELK, Prometheus and Grafana.Troubleshoot production issues, perform root cause analysis and implement solutions to improve reliability and performance.Work closely with architects, developers, infrastructure and cybersecurity teams to support enterprise cloud platforms.Ensure cloud infrastructure and applications comply with security, governance, risk and regulatory requirements.Contribute to technical design, automation, continuous improvement and operational procedures.Support Agile delivery and contribute as a technical SME across cloud and DevOps initiatives.

Required Skills

Proven experience in a DevOps, Cloud Engineering, Platform Engineering or Software Engineering role.Strong hands-on experience with AWS in an enterprise environment.Strong understanding of AWS compute, storage, networking and IAM services.Strong Python development or automation experience.Proven experience with Terraform and Infrastructure as Code.Experience building and maintaining CI/CD pipelines using tools such as Jenkins, GitLab CI or equivalent.Strong experience with Linux, Docker and containerised environments.Experience with Kubernetes and/or serverless technologies.Experience developing RESTful APIs, microservices and distributed systems.Experience with relational and NoSQL databases.Experience with messaging, streaming or integration services.Strong experience with cloud monitoring, logging and alerting.Good understanding of cloud security, authentication, encryption and IAM.Strong troubleshooting, problem-solving and production support experience.Experience working within Agile environments.Excellent communication and stakeholder management skills.

Desirable Skills

Proficiency in Golang.Experience with Liquibase or similar database change management tools.AWS certifications such as AWS Certified Developer or AWS Certified DevOps Engineer.Experience with GCP or other public cloud platforms.Experience working within financial services or other regulated environments.Strong software engineering background combined with infrastructure experience.Experience with Splunk, ELK, Prometheus, Grafana or distributed tracing.Knowledge of DevSecOps, cloud governance and regulatory controls.Experience with non-functional testing and continuous testing practices.Experience with messaging and streaming technologies.

This is an excellent opportunity to join a high-performing engineering team supporting enterprise-scale AWS environments, with a strong focus on cloud infrastructure, Python development, automation, CI/CD, Infrastructure as Code, cloud-native engineering and secure software delivery.

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

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Role:-System AdministratorLocations: Dallas,TX

Contract:12+ months
Start Date: Immediate

About the Role

We are seeking a hands-on System Administrator to support a live broadcast production environment. This role focuses on Linux server patching, cybersecurity vulnerability remediation, system maintenance, and production support within a mission-critical infrastructure environment.

Key ResponsibilitiesPerform Linux server patching, maintenance, reboots, and post-patch validation.Review and remediate cybersecurity vulnerabilities.Troubleshoot Linux systems, applications, and networking issues.Coordinate production changes with senior engineering teams.Document remediation activities and system updates.Support occasional Windows server patching and vendor application upgrades.Required Skills4-7 years of hands-on Linux systems administration experience.Strong experience with server patching and vulnerability remediation.Ability to troubleshoot in complex production environments.Experience working within change management and operational procedures.Strong communication and documentation skills.Preferred SkillsRocky Linux, CentOS, or RHEL.AWS/EC2 exposure.Bash, Python, or other scripting experience.Grafana, Splunk, Dynatrace, or similar monitoring tools.Experience supporting broadcast, media, streaming, or high-availability 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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Role:-Linux Engineer Locations: Albuquerque, NM

Contract:12+ months
Start Date: Immediate

About the Role

We are seeking a hands-on Linux Engineer to support a live broadcast production environment. This role focuses on Linux server patching, cybersecurity vulnerability remediation, system maintenance, and production support within a mission-critical infrastructure environment.

Key ResponsibilitiesPerform Linux server patching, maintenance, reboots, and post-patch validation.Review and remediate cybersecurity vulnerabilities.Troubleshoot Linux systems, applications, and networking issues.Coordinate production changes with senior engineering teams.Document remediation activities and system updates.Support occasional Windows server patching and vendor application upgrades.Required Skills4-7 years of hands-on Linux systems administration experience.Strong experience with server patching and vulnerability remediation.Ability to troubleshoot in complex production environments.Experience working within change management and operational procedures.Strong communication and documentation skills.Preferred SkillsRocky Linux, CentOS, or RHEL.AWS/EC2 exposure.Bash, Python, or other scripting experience.Grafana, Splunk, Dynatrace, or similar monitoring tools.Experience supporting broadcast, media, streaming, or high-availability environments.

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

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Role:-Linux System AdministratorLocations: Omaha,NE

Contract:12+ months
Start Date: Immediate

About the Role

We are seeking a hands-on Linux System Administrator to support a live broadcast production environment. This role focuses on Linux server patching, cybersecurity vulnerability remediation, system maintenance, and production support within a mission-critical infrastructure environment.

Key ResponsibilitiesPerform Linux server patching, maintenance, reboots, and post-patch validation.Review and remediate cybersecurity vulnerabilities.Troubleshoot Linux systems, applications, and networking issues.Coordinate production changes with senior engineering teams.Document remediation activities and system updates.Support occasional Windows server patching and vendor application upgrades.Required Skills4-7 years of hands-on Linux systems administration experience.Strong experience with server patching and vulnerability remediation.Ability to troubleshoot in complex production environments.Experience working within change management and operational procedures.Strong communication and documentation skills.Preferred SkillsRocky Linux, CentOS, or RHEL.AWS/EC2 exposure.Bash, Python, or other scripting experience.Grafana, Splunk, Dynatrace, or similar monitoring tools.Experience supporting broadcast, media, streaming, or high-availability environments.

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

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