Application Architect - Modernisation project

Added 21/05/2026

Solutions Architect - Tier Bank - Canary Wharf - 2 Stage interview process - ASAP start Role - Application ArchitectDuration - 6 months with very likely extensionLocation - Hybrid / Canary Wharf - 3 days per week in a Canary Wharf officeRate - £750 per day (Inside IR35)Experience -In depth understanding of Object Orientated programming concepts as well as of the full Software Development Life Cycle.Good understanding of MS .NET Framework environments.Knowledge and experience of Agile methodologyKnowledge of Cloud and AI technologies that can be adopted into the workplaceExtensive experience working as a software and solutions architect.Experience in designing of...

Application Architect - Modernisation project

Added 14/05/2026

Solutions Architect - Tier Bank - Canary Wharf - 2 Stage interview process - ASAP start Role - Application ArchitectDuration - 6 months with very likely extensionLocation - Hybrid / Canary Wharf - 3 days per week in a Canary Wharf officeRate - £750 per day (Inside IR35)Experience -In depth understanding of Object Orientated programming concepts as well as of the full Software Development Life Cycle.Good understanding of MS .NET Framework environments.Knowledge and experience of Agile methodologyKnowledge of Cloud and AI technologies that can be adopted into the workplaceExtensive experience working as a software and solutions architect.Experience in designing of...

Application Security Engineer

Added 12/05/2026

Application Security Engineer ZZP / Freelance Industry: AAA Gaming Studio Location: Fully Remote (Netherlands) Contract Length: 12-18 monthsAbout the RoleA fast‑growing gaming studio is looking for an Application Security Engineer to embed secure development practices into their high‑velocity game and platform engineering teams. You'll help secure game engines, back‑end services, and player‑facing APIs used by millions worldwide.Key ResponsibilitiesConduct secure code reviews and help dev teams fix vulnerabilities.Integrate SAST, SCA, and DAST tools into build pipelines.Perform threat modelling on gameplay features and backend microservices.Respond to application‑level vulnerabilities and guide remediation efforts.Promote a developer‑friendly security culture within the studio.Skills & ExperienceStrong experience...

Field Application Engineer - HFC / DOCSIS 4.0

Added 30/04/2026

We are supporting a global broadband equipment manufacturer looking for a Field Application Engineer to support HFC access network products across North America. This role will focus on DOCSIS 4.0 deployments, HFC outside-plant equipment, RF troubleshooting, amplifier and optical/RF node support, and customer-facing technical engagement with major cable operators.This is a remote-based contract role with regular travel to customer/operator sites. The position has the opportunity to convert to a full-time role.The RoleThe Field Application Engineer will act as the technical bridge between product engineering, sales, and customer field teams. You will support the deployment, commissioning, troubleshooting, and optimization of HFC...

Application Engineer (AVD)

Added 22/04/2026

One of our clients is looking for a hands-on Application (AVD) Engineer to support a major application integration and migration programme following recent acquisitions. This is a key role focused on application packaging, deployment, and secure delivery within a modern Azure-based environment.Preston (Hybrid 2 days /week) 📅 6-Month Contract (outside IR 35) 💼 Immediate Start Key ResponsibilitiesPackage, test & deploy apps into Azure Virtual DesktopSupport and troubleshoot Microsoft AzureDeliver application on boarding & integrationOperate in a Zero Trust model using ZscalerSupport technical discovery, documentation & issue resolution✅ Essential Skills & ExperienceStrong experience with Azure Virtual Desktop (AVD)Application packaging (MSIX, App-V,...

Application Security Engineer

Added 06/04/2026

Application Security Engineer ZZP / Freelance Industry: AAA Gaming Studio Location: Fully Remote (Netherlands) Contract Length: 12-18 monthsAbout the RoleA fast‑growing gaming studio is looking for an Application Security Engineer to embed secure development practices into their high‑velocity game and platform engineering teams. You'll help secure game engines, back‑end services, and player‑facing APIs used by millions worldwide.Key ResponsibilitiesConduct secure code reviews and help dev teams fix vulnerabilities.Integrate SAST, SCA, and DAST tools into build pipelines.Perform threat modelling on gameplay features and backend microservices.Respond to application‑level vulnerabilities and guide remediation efforts.Promote a developer‑friendly security culture within the studio.Skills & ExperienceStrong experience...

Senior Application DBA Engineer (Azure SQL)

Added 20/02/2026

Role: Application DBA (Azure SQL) Location: Dublin - Hybrid (3 days to office) We're looking for an Application DBA with strong Azure SQL expertise and an architectural mindset to partner with our client's engineering teams and shape the future of our client's cloud data platforms.What you'll work on: 🔹 Azure SQL design, optimisation, security, monitoring 🔹 Performance tuning, indexing strategies & SQL code reviews 🔹 Collaborating directly with developers on schema + query optimisation 🔹 Contributing to cloud architecture (HA/DR, scalability, multi‑region) 🔹 Driving database modernisation and technology directionWe're looking for: ✔ Multiple years with Azure SQL Databases ✔ Strong...

C# Developer Role - Hybrid - Banking

Added 03/06/2026

C# Developer Role - Hybrid / Liverpool street - 6 month Contract - Banking Role - C# Developer (T/SQL, PL/SQL)Duration - 6 months with very likely extensionLocation - Hybrid / Liverpool Street (London) - 3 days per week in a Liverpool Street officeRate - £690 per day (Inside IR35)Tech StackC#SQLOracle TasksTasks include understanding business requirements, designing applications, business data analysis, programming in Visual C#.NET using both Oracle and SQL Server database, Unit testing, Quality Assurance (QA), Implementation, Production and Disaster Recovery environments supporting users and preparing documents.Along with the application development, this role will also include supporting the existing C#...

RabbitMQ SME | Sheffield (Hybrid)

Added 27/05/2026

🚀 One of our leading banking clients is looking for an experienced RabbitMQ SME to join a large-scale PAM & Security transformation programme.📍 Sheffield, UK (Hybrid)📅 ASAP Start📄 Contract until Nov 2026 Key ResponsibilitiesDeploy and manage RabbitMQ clustersBuild resilient multi-site messaging solutionsWork with Kubernetes, Docker & HELMAutomate deployments using Python & PowerShellSupport secure enterprise infrastructure environmentsSkills Required✔ RabbitMQ (Queues, Exchanges, Shovels, Clustering)✔ Kubernetes & Docker✔ Python & PowerShell✔ Linux / Windows environmentsIdeal for a senior infrastructure/platform engineer with strong messaging, automation and DevOps expertise.📩 Apply now or reach out directly for more information.GCS is acting as an Employment Business in...

C# Developer Role - Hybrid - Banking

Added 21/05/2026

C# Developer Role - Hybrid / Liverpool street - 6 month Contract - Banking Role - C# Developer (T/SQL, PL/SQL)Duration - 6 months with very likely extensionLocation - Hybrid / Liverpool Street (London) - 3 days per week in a Liverpool Street officeRate - £690 per day (Inside IR35)Tech StackC#SQLOracle TasksTasks include understanding business requirements, designing applications, business data analysis, programming in Visual C#.NET using both Oracle and SQL Server database, Unit testing, Quality Assurance (QA), Implementation, Production and Disaster Recovery environments supporting users and preparing documents.Along with the application development, this role will also include supporting the existing C#...

IT Project Manager - Biotech - Hybrid

Added 20/05/2026

Role - Project ManagerRate - £400 - £500 per day inside IR35Duration - 6 months with very likely extensionLocation - Hybrid / Middlesbrough office (2 days a week in the office)The RoleIT Project Manager to join a leading biotech organisation delivering critical technology programmes within a GxP-regulated environment.Key ResponsibilitiesLead the delivery of IT programmes and projects within GxP-regulated environmentsManage full project lifecycle including planning, execution, governance, and deliveryDrive stakeholder engagement across technical, scientific, and business teamsEnsure alignment across stakeholders with competing prioritiesProvide clear and consistent project reporting, including risks, milestones, and financialsOversee technical delivery teams, including internal resources and third-party...

C# Developer Role - Hybrid - Banking

Added 05/05/2026

C# Developer Role - Hybrid / Liverpool street - 6 month Contract - Banking Role - C# Developer (T/SQL, PL/SQL)Duration - 6 months with very likely extensionLocation - Hybrid / Liverpool Street (London) - 3 days per week in a Liverpool Street officeRate - £690 per day (Inside IR35)Tech StackC#SQLOracle TasksTasks include understanding business requirements, designing applications, business data analysis, programming in Visual C#.NET using both Oracle and SQL Server database, Unit testing, Quality Assurance (QA), Implementation, Production and Disaster Recovery environments supporting users and preparing documents.Along with the application development, this role will also include supporting the existing C#...

2nd Line Engineer- Hybrid (Outside IR35)

Added 20/04/2026

Essential RequirementsReliability and infrastructure services. Focus on patching of vulnerabilities with our digital Windows and WMWare environment within our data centers and Cloud environments. Service Scope and DeliverablesSystem and application patching on the following technologies:Citrix.Hardware.VMWare.Windows Server.M365.Core data centre services such as AD, Group Policy, DNS, VPN, AV, MFA, WSUS, SCCM, monitoring tools etc.SAN storage and backup.Multi Factor Authentication.MS AzureVulnerability assessment and patch identification.Patch prioritisation and risk scoringPatching using technologies WSUS and Tanium.Testing and deploying patching to ensure they do not impact productionConfirmation and validation of successful patch deploymentCreation and input into RFC process as part of ITSMGCS is acting as...

Bigdata Java developer- Hybrid/Farnborough

Added 26/03/2026

Job Description:JavaSpring bootExperience with one of UI technologyExpertise in key technologies to be leveraged by the team including Java, CI/CD technologies.Experience in S3, Snowflake, PostgresExperience working with containerization and orchestration platforms (Kubernetes/Openshift) and cloud providers like AWS, Azure, GCP or others.Experience in key technologies to be leveraged by the team including Java, CI/CD technologiesExperience working with a variety of data platforms such as S3, SnowflakeExperience building and implementing API service architecturesUnderstanding of software testing principles and methodologiesExperience in high availability & scalability design, as well as performance monitoringGCS is acting as an Employment Business in relation to this vacancy.

IT Compliance Support Engineer - Hybrid - Banking

Added 17/02/2026

IT Compliance Support Engineer - Hybrid / Canary Wharf - 6 month Contract - Banking Tier 1 Bank - Regulatory Reporting TeamRole - IT Compliance Support EngineerDuration - 6 months with very likely extensionLocation - Hybrid / Canary Wharf - 3 days per week in a Canary Wharf officeRate - £415 per day (Inside IR35)Role IT Compliance Support Engineer to join a development team and act as the primary liaison with internal/external audit, compliance, and IT security counterparts. This role combines governance with technical capability-supporting audits, demonstrating IT controls, and troubleshooting or coordinating resolution of issues across Azure DevOps pipelines,...