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IT Service Transition Manager
Contract
We're looking for an experienced IT Service Transition Manager to lead the seamless deployment of new and changed IT services into production. This role bridges the gap between project delivery and operational support, ensuring readiness, stability, and minimal disruption to the business.

Key Responsibilities:
* Develop and manage service transition processes aligned with ITIL best practices (Change, Release, SACM, Validation & Testing).
* Define SLAs, incident processes, and ensure architecture supports service delivery.
* Coordinate release and deployment activities across technical and business teams.
* Oversee operational readiness, including monitoring, alerting, and backup procedures.
* Act as the primary contact for transition activities, managing risks and stakeholder communications.

Skills & Experience:
* Proven background in IT Service Transition, Release Management.
* ITIL Foundation (mandatory); advanced ITIL certifications desirable.
* Strong understanding of SDLC and DevOps principles.
* Excellent communication and coordination skills across cross-functional teams.
* Familiarity with ITSM tools (e.g., ServiceNow, Jira, BMC Remedy).

Please send across an updated CV if this position is of interest

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

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The opportunity:

A leading technology services provider in Dublin is seeking an experienced IT Infrastructure Project Manager for a 12-month rolling day-rate contract (this is a long term role that will roll beyond 24 mths). This role offers a hybrid setup: 3 days per week onsite in Dublin and the remainder remote.

You will join a high-performing Professional Services team, managing complex IT infrastructure, networking and security projects for enterprise clients.

Competitive daily rate DOE.

What you will be doing in the role:

Take ownership of IT infrastructure projects from initial planning through to deployment and integration.Develop detailed project plans in collaboration with architects, engineers, and stakeholders.Manage timelines, budgets, risks, and scope changes effectively.Act as the primary point of contact for clients, providing updates and resolving issues.Coordinate with internal teams and third-party vendors to ensure successful delivery.Oversee procurement and scheduling of equipment and resources.Drive quality standards and ensure projects meet agreed objectives.

What you will need:

5+ years' experience in IT Infrastructure project management.Strong understanding of networking technologies (IP, Ethernet, Wi-Fi, VPN, cloud networking, firewalls, data centres).Proven ability to manage complex, multi-phase projects under tight deadlines.Excellent leadership, negotiation, and stakeholder engagement skills.Proficiency in MS Project, Excel, Word, PowerPoint, and Visio.Ability to work onsite in Dublin 3 days per week and hold a full, clean driver's license.

Desirable:

Degree in engineering or a related discipline.Experience with data centre deployments and enterprise-grade hardware.Familiarity with low-level design documentation and vendor management.

What the organisation will offer you:

You'll work in a dynamic, collaborative environment delivering high-impact projects for major clients. Opportunities for professional growth and continuous development are available, alongside a competitive daily rate DOE.

The Next Step for you:

If this role sounds like a fit, please forward your CV to Oisín Geoghegan at GCS Recruitment Specialists via [email protected] or call 019014378.

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

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Global bank based in Canary Wharf.

Role - C# / WPF / WCF / Winform Developer

Duration - 6 months with likely extension

Rate - £415 p/d (inside IR35)

Location - Hybrid / Canary Wharf

Tech Stack

C#WPFWinformsSQLOracle

Tasks

Tasks range from understanding business requirements, designing application structures, business data analysis, programming WPF (Windows Presentation Foundation) applications in Visual C#.NET on both Oracle and SQL Server database, testing with users, implementation through Development, Quality Assurance (QA), Production and Disaster Recovery environments. Supporting users and writing operation documents including User Helps (manuals) will also be required.As well as application development, this role will also include all aspects of system constructions and support for existing programmes which are written as WinForms (C#.NET) applications. Also, applications written in other languages like MS VBA for Excel and Access, MS VB and MS Excel Macros will also be required.

Additional Tasks

Defining Database objects required in systems to connect with SQL and Oracle Database Administrators in both London and New York.Providing script for database inquiry languages, i.e., T-SQL (SQL Server) and PL/SQL (Oracle) to perform data analysis based on requirements from business parties.Setting up a system distribution method to Citrix and application servers for both Web and Window applications.Troubleshooting systems in an event of failure and implementing necessary solutions by checking Windows Operating System, Internet Information Server and any other relevant environments where the applications are running. In some case this role will act to liaise with other application support team staff.Following the existing team programming policy to keep a common development style to be shared in team members.Updating versions of MS .Net Framework and MS Visual .NET platform to include any necessary changes of existing systems running in Production.Liaising with the relevant support teams such as other Development sections, Technical Support, Network and Infrastructure and DBA where Business users experience system problems.Assessing the impact of data processing loads on SQL and Oracle database and, when appropriate, finding alternative approaches.Rolling out changes with a coordination of Release manager. It is important to maintain the change history of applications

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

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AI Technical Lead
Azure, LangGraph, LangChain, LLM

Contract Opportunity
Location: UK (Remote/Hybrid options available)
Duration: 3 Months (with potential extension)

Our client, a leading organisation at the forefront of AI innovation, is seeking a Technical Lead - AI for a contract engagement. This is a fantastic opportunity to lead cutting-edge development initiatives focused on large language models and intelligent systems.

Key Responsibilities:

Lead the design and delivery of AI solutions using LangGraph, LangChain, and LLMs.Architect and implement scalable systems on Microsoft Azure.Guide and mentor a team of engineers and data scientists.Collaborate with stakeholders to define technical strategy and roadmap.Ensure best practices in model deployment, performance optimisation, and security.

Required Skills:

Proven experience as a Technical Lead in AI/ML projects.Strong hands-on expertise with LangGraph, LangChain, and LLMs.Deep understanding of Azure cloud services and infrastructure.Excellent communication and leadership skills.Ability to work independently and drive results in a fast-paced environment.

Desirable:

Experience in contract roles within enterprise environments.Familiarity with MLOps and CI/CD pipelines for AI.

Please send across an updated CV if this position is of interest

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

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Role: Technical Product Manager

Type: Contract (12 Months)

Pay: GBP 550 per day (Inside IR35)

Over view of the role-
1) Experienced with in Banking or financial industry.
2) 8+ years of experience
3) Software background is Mandatory with Java & React knowledge.

Responsibilities:

Own the end-to-end product lifecycle, from ideation and requirements gathering to launch and continuous improvement.Define the technical product roadmap in collaboration with engineering, design, and leadership teams.Translate complex technical concepts into clear product requirements, user stories, and acceptance criteria.Partner with engineering teams (Java backend, React frontend, DevOps) to ensure technical feasibility, scalability, and performance.Manage API integrations, data flows, and platform architecture considerations for product initiatives.

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

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Job Title: SOC Architect - Azure Sentinel / Microsoft Defender

Location: Remote (U.S. based)

Contract Type: C2C / W2 / 1099

Duration: 6-month renewable engagement

Rate: $75-$95/hr

Overview

We're seeking a seasoned SOC Architect with deep expertise in Azure Sentinel and Microsoft Defender to lead a full-scale Sentinel implementation for a small-to-medium enterprise (SME). This is a remote contract role ideal for a hands-on subject matter expert (SME) who thrives in dynamic environments and can architect, deploy, and optimize cloud-native security operations.

Responsibilities

Lead the end-to-end implementation of Azure Sentinel for a growing SME clientArchitect and configure Microsoft Defender integrations across endpoints, identities, and cloud workloadsDesign and deploy custom analytics rules, workbooks, and playbooks to enhance threat detection and responseEstablish data connectors and ingestion pipelines from diverse sources (O365, Azure AD, firewalls, etc.)Collaborate with client stakeholders to define SOC workflows, alerting logic, and incident response proceduresProvide technical mentorship and documentation to internal teams for long-term sustainability

Qualifications

Proven experience as a SOC Architect or Security Engineer specializing in Azure SentinelHands-on expertise with Microsoft Defender for Endpoint, Identity, Cloud Apps, and Office 365Strong understanding of KQL, Log Analytics, and SIEM/SOAR best practicesExperience working with SME environments and tailoring scalable security solutionsExcellent communication skills and ability to work independently in a remote setting

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

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Job Title: Senior .NET/JavaScript Full Stack Developer
Location: Limerick (Hybrid 2 days)
Type: 12 Months contract
Dayrate: €400-€450/day

Overview:
We are seeking a highly skilled Senior Full Stack Developer with strong expertise in .NET and JavaScript to join our dynamic engineering team. The ideal candidate will have a proven track record of building scalable web applications and delivering high-quality code across the full stack.

Key Responsibilities:

Design, develop, and maintain full-stack web applications using .NET (C#) and JavaScript frameworks (e.g., React, Angular, or Vue).Collaborate with cross-functional teams to define, design, and ship new features.Ensure the performance, quality, and responsiveness of applications.Participate in code reviews and mentor junior developers.Troubleshoot and resolve technical issues across the stack.

Required Skills:

Strong experience with .NET Core / ASP.NET MVC.Proficiency in JavaScript and modern front-end frameworks.Solid understanding of RESTful APIs and microservices architecture.Experience with SQL Server or other relational databases.Familiarity with CI/CD pipelines and cloud platforms (Azure/AWS).

Preferred Qualifications:

Experience with containerization (Docker, Kubernetes).Knowledge of Agile methodologies.Excellent problem-solving and communication skills.

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

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Service Desk Analyst (L1)
Location: Dublin (Fully On-Site)
Contract: 6 Months (Strong Likelihood of Extension)
Start Date: ASAP

Are you looking to join a growing IT support team in an exciting and fast-paced environment? I'm currently working with a well-established public sector organisation that is expanding its internal IT support function. They are seeking a personable and motivated Level 1 Service Desk Analyst to provide first-line technical support for users across multiple locations.

This is a fantastic opportunity for someone early in their IT career who is eager to grow and develop within a collaborative team. The role is fully on-site in Dublin and offers a strong chance of extension beyond the initial 6-month contract.

Key Focus Areas:ServiceNow: Logging, categorising, and escalating tickets using the ITSM platform.Office 365: Supporting users with Outlook, Teams, and other O365 applications.Active Directory: Assisting with password resets and basic account access issues.What You'll Be Doing:Acting as the first point of contact for IT support via phone, email, and ServiceNow.Troubleshooting issues related to Windows 10/11, Office 365, printers, and mobile devices.Providing clear, user-friendly guidance to non-technical users.Assisting with device setup and support during onboarding/offboarding.Collaborating with Level 2 support and contributing to knowledge base improvements.What We're Looking For:At least 2 years' of experience in a service desk or IT support role.Strong communication and problem-solving skills.Familiarity with ServiceNow (or similar ITSM tools), Office 365, and Windows environments.Exposure to Active Directory is a plus.A proactive attitude and a willingness to learn and grow.

This is more than just a support role - it's a chance to be part of a growing team where your contributions will be valued and your career can progress.

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

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Location : Hammersmith, London (Hybrid - 2 days onsite/ week)

Duration : 6 months Extendable, moving to permanent afterwards

rate : GBP 410 - 500 p/d Inside IR35

TECHNICAL SKILLS

Must Have

a Data Analystcard processingPayment OperationsSnowflake or SQLtableau - creating reports

Responsibilities

Provides support to acquirers, network-to-network partners, issuers, and processors. Researches complex situations and supports participants with operationsSupports business development teams to expand acceptance and Approval rates optimization Supports participants through the semi-annual release process. Manages and coordinates certification.Ensures participants are in compliance with operating rules and regulations. Responsible for EMEA Compliance activities co-ordination (e.g. waivers, auditing) and BCP data reviews.Engages participants and internal stakeholders to support network initiatives. Settlement issue/resolution co-ordination (Rupay & others) and ProtectBuy/SCA central project management/coordination.Analyzes end-to-end transaction processing, troubleshoots issues and acceptance complaints, and supports issuer & Acquirer launches. Lead Salesforce effort to maximise efficiency and automate EMEA reporting.Manage EMEA data & presentations for forums, business reviews and ad-hoc reporting.Coordinate with Snr Mgrs & Dir. Employee engagement activities.

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

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QA Lead - Finance / Payments / Contract

Lead QA working on an integral payment system for a major finance company within their payments team. Emphasis on API testing.

Role - QA Lead

Duration - 6 months with very likely extension

Rate - Negotiable

Location - Hybrid / Hampshire - 3 days per week in the office

Skills -

Experience with Java, Junit, Cucumber, Gherkin, Gatling, Xray, Selenium Webdriver, TestNG, Pact Testing, API Testing Frameworks. AWS expertise preferred.Hoppscotch or Postman experience testing APIsExperience identifying test cases using boundary valuation analysis, negative testing, etc.Drives quality discussions around requirements in refinementPayments network experienceExposure to modern software testing practices including but not restricted to Test Automation, Test First, TDD, ATDD and BDD.Experience in DevOps (preferably working with containerized environments) and build tools using Jenkins CI/CD, Gradle, Github, Nexus and SonarQube and other code coverage tools preferred.Experience testing and implementing API service architecture with Spring Boot.3+ years of Hands-on Test Automation required.

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

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