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Senior Data Engineer

Dublin, Ireland | Hybrid | 12-month Contract

About the Company

Our client is a large, global technology-driven organisation operating in a highly regulated, data-rich industry, delivering services at scale to millions of customers worldwide.

About the Role

As a Senior Data Engineer, you will develop and maintain data pipelines that extract, transform, and load (ETL) data from a wide variety of sources into centralised data platforms such as a data warehouse or data lake. You will ensure the smooth, reliable flow of data from source to destination systems while upholding rigorous data quality and integrity standards, working within a highly regulated environment.

Primary ResponsibilitiesData integration: integrate data from multiple sources and systems, including databases, APIs, log files, streaming platforms, and external data providers. Handle ingestion, transformation, and consolidation to create a unified, reliable data foundation for analysis and reporting.Data transformation and processing: develop transformation routines to clean, normalise, and aggregate data. Handle complex data structures and missing or inconsistent data, preparing data for analysis, reporting, and machine learning use cases.Contribute to common frameworks and best practices in code development, deployment, and automation/orchestration of data pipelines.Implement data governance and data de-identification frameworks in line with company and regulatory standards.Partner with data analytics and product leaders to design best practices and standards for developing and productionising analytic pipelines.Partner with infrastructure leaders on architecture approaches to advance the data and analytics platform, including exploring new cloud-based tools and techniques (Azure, Snowflake, and others).Monitoring and support: monitor data pipelines and systems to detect and resolve issues promptly. Develop monitoring tools, alerts, and automated error handling to ensure data integrity and system reliability.Required QualificationsExtensive experience designing data solutions, with a solid understanding of architectural patterns, system design principles, data modelling, and large-scale solution development.Extensive hands-on experience developing data processing jobs (PySpark/SQL) demonstrating strong software engineering principles.Proven experience with Azure Databricks and Snowflake.Experience orchestrating data pipelines using tools such as Azure Data Factory, Airflow, or similar.Proven experience working with Spark.Advanced SQL skills and deep experience with relational databases (e.g., SQL Server), including optimisation, stored procedures, and performance tuning for high-volume applications.Experience with DevOps tooling, Git workflows, and building CI/CD pipelines.Experience applying data governance controls, data masking, and data de-identification rules within a highly regulated environment.Excellent communication and interpersonal skills, with the ability to convey technical concepts to both technical and non-technical stakeholders.Preferred QualificationsExperience analysing and improving workflows: evaluating process maps and flowcharts, identifying inefficiencies, and recommending enhancements to procedures, technology, and tools.Familiarity with languages such as Java or Scala.A motivated self-starter who manages their own tasks and takes ownership.Experience working in agile/scrum teams.Strong Python skills for data manipulation, cleaning, transformation, and analysis of structured data.Familiarity with production-quality ML/AI model development and deployment.Data architecture experience.

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Service Operations Engineer (2nd Line Support)

One of our clients is looking for an experienced 2nd Line Service Operations Engineer to join their growing team. In this role, you will provide 2nd line technical support, resolve complex incidents, maintain IT infrastructure, manage system patching, and ensure services are delivered in line with agreed SLAs. You will also work closely with 1st and 3rd Line Support teams, customers, and third-party vendors to deliver high-quality technical support.

📍 Location: Stoke-on-Trent
💼 Job Type: Permanent
🔒 Security Clearance: Candidates must be eligible to obtain UK Security Clearance (SC).

Essential Skills:

Strong experience in 2nd Line IT SupportExperience working within an MSP environmentWindows Server & Microsoft 365Active Directory / Microsoft Entra IDPatch ManagementNetworking (TCP/IP, DNS, DHCP, VPN)VMware and/or Hyper-VAzure and/or AWSPowerShell (desirable)ITIL and ITSM tools (ServiceNow or Jira)

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Data Engineers & Data Analysts

Notre client recherche actuellement des Data Engineers et des Data Analysts pour participer à un projet passionnant orienté data. Il s'agit d'une excellente opportunité de contribuer à la mise en place et à l'exploitation de plateformes de données modernes afin de soutenir les analyses métier et la prise de décision.

Localisation : Belgique

Mode de travail : Hybride

Postes disponibles

Data Engineers

Construire et maintenir des pipelines de données et des architectures évolutivesConcevoir des data lakes, data warehouses et solutions basées sur le cloudGarantir la qualité, la performance et la fiabilité des données

Data Analysts

Analyser et interpréter les données afin de générer des insights exploitablesDévelopper des tableaux de bord et des rapportsCollaborer avec les parties prenantes pour soutenir des décisions basées sur les données

Exigences clés

Data Engineers: Python, processus ETL et expérience des technologies cloudData Analysts: solides compétences en SQL et expérience avec des outils de reporting tels que Power BIBonne compréhension de la modélisation des données et des concepts de data warehousingMinimum 2 ans d'expérience dans un rôle lié à la dataMaîtrise du néerlandais ou du français, ainsi que de l'anglais

Ce que nous recherchons

Solides compétences analytiques et de résolution de problèmesCapacité à travailler dans un environnement collaboratif et orienté projetSens du détail et passion pour la data

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Data Engineers & Data Analysts

Onze klant is momenteel op zoek naar zowel Data Engineers als Data Analysts voor een boeiend data‑gedreven project. Dit is een uitstekende kans om bij te dragen aan het bouwen en benutten van moderne dataplatformen ter ondersteuning van businessinzichten en besluitvorming.

Locatie: België

Werkmodel: Hybrid

Beschikbare rollen

Data Engineers

Bouwen en onderhouden van schaalbare datapijplijnen en data-architecturenOntwerpen van data lakes, datawarehouses en cloudgebaseerde oplossingenWaarborgen van datakwaliteit, prestaties en betrouwbaarheid

Data Analysts

Analyseren en interpreteren van data om bruikbare inzichten te genererenOntwikkelen van dashboards en rapportagesSamenwerken met stakeholders om data-gedreven beslissingen te ondersteunen

Belangrijkste vereisten

Data Engineers: Python, ETL-processen en ervaring met cloudtechnologieënData Analysts: Sterke SQL-vaardigheden en ervaring met rapportagetools zoals Power BIInzicht in datamodellering en datawarehousingconceptenMinimaal 2 jaar ervaring in een relevante datafunctieVloeiend in Nederlands of Frans, en Engels

Wat we zoeken

Sterke analytische en probleemoplossende vaardighedenVermogen om te werken in een samenwerkende, projectmatige omgevingNauwkeurigheid en een passie voor data

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

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Data Engineer
Onze klant is op zoek naar een Data Engineer die schaalbare datapijplijnen en data-architecturen kan bouwen, onderhouden en optimaliseren. De rol richt zich op het leveren van betrouwbare dataoplossingen ter ondersteuning van analytics en zakelijke besluitvorming.

Locatie: België
Werkmodel: Hybride

Belangrijkste verantwoordelijkheden

Ontwikkelen en onderhouden van ETL/ELT-datapijplijnenOntwerpen en beheren van data lakes, datawarehouses en lakehouse-oplossingenWaarborgen van datakwaliteit, beveiliging en prestatiesSamenwerken met analytics- en business teamsOndersteunen van real-time en batchverwerking van dataImplementeren van monitoring, automatisering en CI/CD-praktijken

Vereisten

Ervaring met werken in cloudplatformen (zoals Azure, AWS of GCP), inclusief hun kernservices voor opslag, verwerking en integratie, evenals gerelateerde tools zoals Snowflake, Spark, Kubernetes en TerraformErvaring met Snowflake is een groot pluspunt; als je dit nog niet hebt, krijg je de kans om dit te leren binnen het teamMinimaal 2 jaar ervaring in data engineering of een vergelijkbare rolVloeiend in Nederlands of Frans, en Engels

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

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Data Engineer

Notre client recherche un Data Engineer pour concevoir, maintenir et optimiser des pipelines de données et des architectures évolutives. Le poste se concentre sur la fourniture de solutions de données fiables afin de soutenir l'analyse et la prise de décision métier.

Localisation: Belgique
Mode de travail: Hybride

Responsabilités principales

Développer et maintenir des pipelines de données ETL/ELTConcevoir et gérer des data lakes, data warehouses et solutions lakehouseGarantir la qualité, la sécurité et la performance des donnéesCollaborer avec les équipes analytics et businessPrendre en charge le traitement de données en temps réel et en batchMettre en œuvre des pratiques de monitoring, automatisation et CI/CD

Exigences

Expérience avec des plateformes cloud (Azure, AWS ou GCP), y compris leurs services de base pour le stockage, le traitement et l'intégration des données, ainsi que des outils associés comme Snowflake, Spark, Kubernetes et TerraformUne expérience avec Snowflake est un atout important ; si vous ne l'avez pas encore, vous aurez l'opportunité de l'apprendreMinimum 2 ans d'expérience en data engineering ou dans un rôle similaireMaîtrise du néerlandais ou du français, ainsi que de l'anglais

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Job Description

Skills and Experience

7-10+ years of experience in DevOps, SRE, Platform Engineering, or Cloud InfrastructureStrong hands-on experience with GCP, GKE, Cloud SQL, Firestore, IAM, and service accountsExperience with AWS services such as S3, EC2, CloudFront, Route53, and IAMDeep knowledge of Kubernetes, Docker, Helm, and TerraformExperience with Kubernetes control planes, autoscaling, readiness/liveness probes, cluster upgrades, and workload reliabilityCI/CD expertise using Jenkins, GitHub Actions, Cloud Build, and Git-based release workflowsExperience with RabbitMQ or similar message queue technologiesStrong scripting and automation skills using Bash, Python, and YAMLExperience with secrets management, Workload Identity Federation, RBAC, and secure deployment practicesStrong understanding of networking, load balancing, DNS, CDN, SSL/TLS, and production change managementExperience with monitoring, alerting, observability, SLOs/SLIs, incident response, RCA, and postmortemsStrong operational mindset with the ability to use metrics to improve reliability, deployment quality, and platform performance Typical Tasks and ResponsibilitiesDesign, maintain, and improve scalable cloud infrastructure across GCP and AWSBuild and evolve Terraform, Helm, and automation frameworksLead Kubernetes workload design, cluster upgrades, scaling, and reliability improvementsDesign and maintain CI/CD pipelines using Jenkins, GitHub Actions, and Cloud BuildSupport RabbitMQ-based and event-driven microservice infrastructureImprove monitoring, alerting, anomaly detection, dashboards, and SLO/SLI trackingTroubleshoot complex cloud, networking, Kubernetes, deployment, and infrastructure issuesManage IAM permissions, service accounts, SSL certificates, secrets, and security controlsLead production deployment planning, rollback strategies, and release readiness activitiesParticipate in incident response, RCA, and postmortem follow-upsDrive DevSecOps practices, compliance readiness, vulnerability remediation, and infrastructure governanceDefine and evolve DevOps standards, deployment practices, and operational best practicesMentor DevOps Engineers 1-3 and provide technical guidance through design reviews and knowledge sharingPartner with engineering, QA, video, security, product, and infrastructure teams on planning and execution

Responsibilities

Championing the optimization of the development process to effectively bridge the gap between software development, engineering, and managementDriving the pursuit of continuous improvement with robust continuous integration, development, and deployment pipelinesAdvocating for and overseeing the automation of processes to accelerate the software development processFacilitating effective communication and collaboration between development and operations teams for rapid product developmentMonitoring application performance to anticipate and correct operational issuesCreating and maintaining stable, deployable, and scalable operating environments by continuously improving infrastructureCommanding advanced knowledge of development processes and programming languagesEnsuring adherence to industry standards and best practices for security and compliance throughout the development and operations lifecycleConsistent exercise of independent judgment and discretion in matters of significance.Regular, consistent and punctual attendance. Must be able to work nights and weekends, variable schedule(s) as necessary.Other duties and responsibilities as assigned.

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Application Security Engineer

You'll join a centralised Application Security team responsible for managing the full lifecycle of security findings reported by customers, internal teams, and third‑party testers.

You'll triage real‑world vulnerability reports, reproduce issues in controlled environments, analyse platform‑level attack surfaces, and collaborate with engineering teams to validate fixes and guide remediation.

Day to Day Responsibilities

Validate vunerabilities, assess scope and impact, determine severity, and recommend remediation paths.vulnerabilities across web, API, and server-side components and privilege escalation.Produce clear, accurate security assessments suitable for both engineering teams and executive level.Partner with development teams on defect filing, patch validation, backport decisions, and fix completeness.Recreate customer scenarios in lab environments to verify reported vulnerabilities and confirm remediation.Review server-side and client-side code to trace attack vectors and validate security fixes.

Desired Experience

Relevant eperience in application security, penetration testing, bug bounty triage, or product security engineering.Strong working knowledge of OWASP Top 10 and modern attack classesAbility to read and trace JavaScript and Java codebases to identify vulnerabilities and validate fixes.Experience writing clear, technically accurate security reports for diverse audiences.Fluency in CVSS scoring, including rationale behind severity decisions.

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The Network Field Engineer is responsible for the onsite implementation, validation, and troubleshooting of enterprise Wi‑Fi and LAN infrastructure within data center environments. This role requires strong hands-on expertise in wireless networking, switching, and system integration, with a focus on execution quality, performance optimization, and rapid issue resolution.

The engineer works closely with project managers, design engineers, and customer teams to ensure deployments meet design intent, operational requirements, and defined performance KPIs.

Key ResponsibilitiesSite Assessment & ValidationValidate field conditions against design documentation (floor plans, rack layouts, RF designs)Conduct site surveys, measurements, and documentation when requiredCapture field updates including photos, markups, and design changesImplementation & DeploymentPerform staging, configuration, and deployment of:Wireless access points, controllers, and cloud-managed WLAN systemsLAN switching infrastructure (access and distribution layers)Execute network configurations including VLANs, routing, segmentation, and securitySupport installation teams with technical direction and quality validationImplement high availability and redundancy solutions (stacking, failover, etc.)Network Turn-Up & TestingPerform system validation and commissioning of Wi‑Fi and LAN environmentsExecute acceptance testing, performance validation, and system verificationEnsure solutions meet defined KPIs for performance, coverage, and reliabilityTroubleshooting & OptimizationTroubleshoot wireless issues such as coverage gaps, interference, and roaming behaviorDiagnose network problems including latency, packet loss, and configuration errorsUse packet capture and RF analysis tools to isolate and resolve issuesOptimize configurations for performance, stability, and scalabilityMigration & Change ExecutionExecute network migrations and planned changes using defined procedures (MOPs)Support upgrades, cutovers, and system integrationsMinimize service impact during transitionsDocumentation & ReportingProduce and maintain:As-built documentation and network diagramsTest plans and validation resultsIssue logs and root cause analysis reportsProvide daily progress updates and status reportingCustomer & Internal CollaborationAct as a technical liaison with customers, internal engineering teams, and support organizationsSupport escalation and issue resolution processesProvide knowledge transfer and operational guidance to customer teamsRequired Skills & ExpertiseWireless & NetworkingStrong knowledge of:802.11 Wi‑Fi standards and RF fundamentalsIP routing and switching conceptsVLANs, QoS, and network segmentationExperience with WLAN security (authentication, encryption, AAA/RADIUS)Familiarity with controller-based and cloud-managed wireless architecturesData Center & LANExperience with switching technologies including:VLANs, routing, STP/MSTP, VRFHigh availability and redundancy designUnderstanding of structured cabling and data center environmentsToolsPacket analysis tools (e.g., Wireshark or equivalent)RF survey and troubleshooting toolsNetwork validation and performance testing toolsExperience & Qualifications5-10+ years of experience in:Wireless network deployment and troubleshootingLAN or data center network engineeringProven experience with site surveys, implementation, commissioning, and optimizationRelevant certifications preferred:CWNA or equivalent wireless certificationVendor certifications (Ruckus, Cisco, Aruba, etc.)

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

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The Network Field Engineer is responsible for the onsite implementation, validation, and troubleshooting of enterprise Wi‑Fi and LAN infrastructure within data center environments. This role requires strong hands-on expertise in wireless networking, switching, and system integration, with a focus on execution quality, performance optimization, and rapid issue resolution.

The engineer works closely with project managers, design engineers, and customer teams to ensure deployments meet design intent, operational requirements, and defined performance KPIs.

Key ResponsibilitiesSite Assessment & ValidationValidate field conditions against design documentation (floor plans, rack layouts, RF designs)Conduct site surveys, measurements, and documentation when requiredCapture field updates including photos, markups, and design changesImplementation & DeploymentPerform staging, configuration, and deployment of:Wireless access points, controllers, and cloud-managed WLAN systemsLAN switching infrastructure (access and distribution layers)Execute network configurations including VLANs, routing, segmentation, and securitySupport installation teams with technical direction and quality validationImplement high availability and redundancy solutions (stacking, failover, etc.)Network Turn-Up & TestingPerform system validation and commissioning of Wi‑Fi and LAN environmentsExecute acceptance testing, performance validation, and system verificationEnsure solutions meet defined KPIs for performance, coverage, and reliabilityTroubleshooting & OptimizationTroubleshoot wireless issues such as coverage gaps, interference, and roaming behaviorDiagnose network problems including latency, packet loss, and configuration errorsUse packet capture and RF analysis tools to isolate and resolve issuesOptimize configurations for performance, stability, and scalabilityMigration & Change ExecutionExecute network migrations and planned changes using defined procedures (MOPs)Support upgrades, cutovers, and system integrationsMinimize service impact during transitionsDocumentation & ReportingProduce and maintain:As-built documentation and network diagramsTest plans and validation resultsIssue logs and root cause analysis reportsProvide daily progress updates and status reportingCustomer & Internal CollaborationAct as a technical liaison with customers, internal engineering teams, and support organizationsSupport escalation and issue resolution processesProvide knowledge transfer and operational guidance to customer teamsRequired Skills & ExpertiseWireless & NetworkingStrong knowledge of:802.11 Wi‑Fi standards and RF fundamentalsIP routing and switching conceptsVLANs, QoS, and network segmentationExperience with WLAN security (authentication, encryption, AAA/RADIUS)Familiarity with controller-based and cloud-managed wireless architecturesData Center & LANExperience with switching technologies including:VLANs, routing, STP/MSTP, VRFHigh availability and redundancy designUnderstanding of structured cabling and data center environmentsToolsPacket analysis tools (e.g., Wireshark or equivalent)RF survey and troubleshooting toolsNetwork validation and performance testing toolsExperience & Qualifications5-10+ years of experience in:Wireless network deployment and troubleshootingLAN or data center network engineeringProven experience with site surveys, implementation, commissioning, and optimizationRelevant certifications preferred:CWNA or equivalent wireless certificationVendor certifications (Ruckus, Cisco, Aruba, etc.)

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

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