GCS

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 APIs Experience identifying test cases using boundary valuation analysis, negative testing, etc. Drives quality discussions around requirements in refinement Payments network experience Exposure 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.

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# WPF Winforms SQL Oracle 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.

Role - BI Specialist (SQL / Azure) Industry - Automotive Type - Fixed term contract (2 months, extension thereafter) Rate - 75,000 per annum, pro rata Location - Hybrid, 50% of the month in the office (London, Victoria) PURPOSE OF POST: Experienced Microsoft / Azure Business Intelligence (BI) Specialist to design, build, and support BI solutions across the Microsoft stack, including SSAS, SSRS, and Power BI. The post holder will play a key role in delivering high-quality, enterprise-grade analytics for platforms, while also enabling integration with third-party reporting tools such as Tableau and Amazon QuickSight. The successful candidate will have strong proficiency in SQL and DAX, a solid understanding of Azure data architecture, and experience working in a cross-functional team comprising engineers, analysts, and product stakeholders. QUALIFICATIONS / SKILLS / ATTRIBUTES Microsoft BI Stack Strong hands-on experience with SSAS (both multidimensional and tabular model development) Experience developing and maintaining SSRS data models and paginated reports Expertise with Power BI , including Power Query, DAX, measures, and visual design Azure Data Platform Familiarity with Azure SQL DB , Synapse Analytics , Data Factory , and Azure Analysis Services Experience managing data refresh strategies , gateways , and Power BI service deployments Ability to design secure reporting environments with row-level security , role-based access , and Azure AD integration Integration & Interoperability Experience connecting Microsoft BI tools with Tableau, Amazon QuickSight , or similar platforms Understanding of REST APIs , Power BI Embedded , and programmatic data access patterns Data Engineering & Modelling Strong T-SQL skills for data retrieval and performance tuning Knowledge of dimensional modelling , star/snowflake schemas , and data warehouse best practices Preferred Qualifications Microsoft certifications such as DA-100 , DP-500 , or MCSE: BI Familiarity with CI/CD for BI assets (e.g. Git integration for SSAS/Power BI) Exposure to DevOps pipelines for automated deployments Awareness of data cataloguing , data lineage , and governance standards MAIN DUTIES INCLUDE: BI Development & Reporting Design, develop, and maintain SSAS cubes (tabular and multidimensional) aligned to reporting requirements Build SSRS data models and reports , ensuring scalability and performance Develop interactive Power BI dashboards using complex business logic in DAX Integration & Interoperability Enable interoperability with third-party tools like Tableau and Amazon QuickSight Manage secure integrations between Power BI and Azure-hosted data sources Platform Support & Governance Configure row-level security , user access roles, and workspace settings Monitor performance across data models and reports; implement best practices for query optimisation Contribute to the creation of documentation, data standards, and governance artefacts Collaboration & Continuous Improvement Work closely with data engineers and analysts to define and evolve reporting architecture Support continuous delivery of BI assets via automated pipelines and DevOps tooling Drive improvements in data quality, usability, and user self-service GCS is acting as an Employment Agency in relation to this vacancy.

Purpose of the role To build and maintain infrastructure platforms and products that support applications and data systems, using hardware, software, networks, and cloud computing platforms as required with the aim of ensuring that the infrastructure is reliable, scalable, and secure. Ensure the reliability, availability, and scalability of the systems, platforms, and technology through the application of software engineering techniques, automation, and best practices in incident response. To be successful in this role as an Infrastructure Engineer - Production Network Engineering, you should possess the following skillsets: Extensive experience as an individual contributor in the design, build and operate of Telco hardened virtual infrastructure ecosystems for example Openstack, Kubernetes, QEMU, KVM, HCI spanning Cloud Platforms such as Public, Edge, Private and uCPE Platforms for example x86, Arm CPU architectures to enable the delivery of heterogeneous network systems, products and services at enterprise scale Deep understanding of open-source networking technologies for example kernel (including eBPF, AF_XDP), OVS, OVN, SoNIC, DENT, Switchdev, ONF stack, Iwd, NetworkManager, including data path acceleration protocols and interfaces such as RDMA, RoCE, iWARP, NVMe, SR-IOV and DPDK, alongside familiarity with Cloud Native Functions and Container Networking Interface plugins Experience in multi-layered IP Network engineering including good experience in network programming / automation, IaC, configuration management tools and data modelling for example RESTCONF, NETCONF/YANG, Python, Shell, Ansible, Saltstack, Terraform, CloudFormation, ARM; with demonstrable experience of DevOps, agile methodologies and CI/CD pipelines GCS is acting as an Employment Agency in relation to this vacancy.