11 information technology jobs found in Cardiff

This role is delivered within secure environments. Candidates must be eligible for UK SC clearance and hold UK citizenship. Join the Mission At ByDesign Secure, we believe that world-class security shouldn't be an afterthought—it should be the foundation. We are an independent, outputs-based consultancy dedicated to solving complex data assurance challenges in the UK public sector. We are a lean, expert team focused on delivering high-impact outcomes. If you are a self-starter who thrives on autonomy and wants your work to contribute to secure, nationally significant programmes, we want to talk to you. About the Opportunity We’re looking for an experienced and collaborative Technical Author to work closely with our architecture, engineering and software development teams. This is not simply a proofreading role: you will evaluate the logic, structure and readability of deeply technical documents and help ensure complex information is accurate, clear and...

This role is delivered within secure environments. Candidates must be eligible for UK SC clearance and hold UK citizenship. Join the Mission At ByDesign Secure, we believe that world-class security shouldn't be an afterthought—it should be the foundation. We are an independent, outputs-based consultancy dedicated to solving complex data assurance challenges in the UK public sector. We are a lean, expert team focused on delivering high-impact outcomes. If you are a self-starter who thrives on autonomy and wants your work to contribute to secure, nationally significant programmes, we want to talk to you. About the Opportunity We’re looking for an experienced and collaborative Technical Author to work closely with our architecture, engineering and software development teams. This is not simply a proofreading role: you will evaluate the logic, structure and readability of deeply technical documents and help ensure complex information is accurate, clear and accessible. You’ll...

We are looking for a QA Test Infrastructure Engineer to work with one of our clients in the defence sector. You'll work alongside engineers, architects, and delivery specialists to develop technology that enables faster, safer decision-making for critical operations. You work will consist of: ensuring quality of products as they move from POC to production, analysing infrastructure requirements and architectures, creating infrastructure-focussed strategies and designing and executing tests across physical infrastructure and IaC. We are looking for someone with skills and experience in: Infrastructure, Networking & Operating Systems Strong understanding of TCP/IP, DNS, DHCP, routing, switching, Firewalls, VLANs, and related network behaviours. Experience with physical infrastructure setup and troubleshooting (Routers, Switches, cabling). Proficiency with Linux/Unix command line for diagnostics, configuration, and validation. Experience working across...

Infrastructure Engineer Test Engineer - DV Cleared- Contract - MOD/Defence Somerset| £600 per day + Expenses | Outside IR35 | DV Security Clearance Required Are you an Infrastructure Test Engineer with strong QA and testing experience across networks, platforms and Infrastructure as Code? This is an opportunity to work on complex Defence and National Security projects, taking responsibility for testing and validating infrastructure before deployment into highly secure production environments. Working alongside Infrastructure Engineers, Architects and DevSecOps specialists, you'll assure infrastructure across physical, virtualised and cloud environments, ensuring it meets the required standards for functionality, resilience and security. What you'll do Create infrastructure-focused test strategies, plans and test cases. Carry out functional, integration, regression, resilience and security testing. Test and validate Infrastructure as Code deployments. Validate physical,...

Infrastructure Engineer Test Engineer - DV Cleared- Contract - MOD/Defence Somerset| £600 per day + Expenses | Outside IR35 | DV Security Clearance Required Are you an Infrastructure Test Engineer with strong QA and testing experience across networks, platforms and Infrastructure as Code? This is an opportunity to work on complex Defence and National Security projects, taking responsibility for testing and validating infrastructure before deployment into highly secure production environments. Working alongside Infrastructure Engineers, Architects and DevSecOps specialists, you'll assure infrastructure across physical, virtualised and cloud environments, ensuring it meets the required standards for functionality, resilience and security. What you'll do Create infrastructure-focused test strategies, plans and test cases. Carry out functional, integration, regression, resilience and security testing. Test and validate Infrastructure as Code deployments. Validate...

We are looking for a QA Test Infrastructure Engineer to work with one of our clients in the defence sector. You'll work alongside engineers, architects, and delivery specialists to develop technology that enables faster, safer decision-making for critical operations. You work will consist of: ensuring quality of products as they move from POC to production, analysing infrastructure requirements and architectures, creating infrastructure-focussed strategies and designing and executing tests across physical infrastructure and IaC. We are looking for someone with skills and experience in: Infrastructure, Networking & Operating Systems Strong understanding of TCP/IP, DNS, DHCP, routing, switching, Firewalls, VLANs, and related network behaviours. Experience with physical infrastructure setup and troubleshooting (Routers, Switches, cabling). Proficiency with Linux/Unix command line for diagnostics, configuration, and validation. Experience working across virtualisation...

We are looking for a QA Test Infrastructure Engineer to work with one of our clients in the defence sector. You'll work alongside engineers, architects, and delivery specialists to develop technology that enables faster, safer decision-making for critical operations. You work will consist of: ensuring quality of products as they move from POC to production, analysing infrastructure requirements and architectures, creating infrastructure-focussed strategies and designing and executing tests across physical infrastructure and IaC. We are looking for someone with skills and experience in: Infrastructure, Networking & Operating Systems Strong understanding of TCP/IP, DNS, DHCP, routing, switching, Firewalls, VLANs, and related network behaviours. Experience with physical infrastructure setup and troubleshooting (Routers, Switches, cabling). Proficiency with Linux/Unix command line for diagnostics, configuration, and validation. Experience working across virtualisation...

Capacity & Performance Manager - DV Cleared 12-Month Contract | South West | £600 to £700 per day (DOE) | Outside IR35 We are seeking an experienced Capacity & Performance Manager to join a high-profile programme in the South West. This is a 12-month contract , paying up to £700 per day , with hybrid working available . The successful candidate will bring extensive experience across capacity management, performance analysis, infrastructure planning and project management , ideally gained within large-scale, complex or secure environments. Key Responsibilities Lead capacity and performance management across complex IT infrastructure and services. Develop demand, capacity and performance models, forecasts and long-term capacity plans. Analyse infrastructure performance and utilisation across physical, virtual and cloud environments . Produce dashboards, reports and management information to support technical and business decisions. Work closely with...

Capacity & Performance Manager - DV Cleared 12-Month Contract | South West | £600 to £700 per day (DOE) | Outside IR35 We are seeking an experienced Capacity & Performance Manager to join a high-profile programme in the South West. This is a 12-month contract , paying up to £700 per day , with hybrid working available . The successful candidate will bring extensive experience across capacity management, performance analysis, infrastructure planning and project management , ideally gained within large-scale, complex or secure environments. Key Responsibilities Lead capacity and performance management across complex IT infrastructure and services. Develop demand, capacity and performance models, forecasts and long-term capacity plans. Analyse infrastructure performance and utilisation across physical, virtual and cloud environments . Produce dashboards, reports and management information to support technical and business decisions. Work closely with...

Application Support Engineer - DV Cleared Our client is urgently looking for an experienced Application Support Engineer to join their team on a contract basis, initially for 6 months with a view to extend. Please note, the role is OUTSIDE of IR35. You must hold live UKIC DV. The role is on-site 4 days per week in Gloucester. Application Support Engineer - Key Skills: Must hold a live UKIC DV Understanding of networking and software architectures Understanding of structured text formats: JSON, XML, CSV The below skills are nice to have: Exposure to programming languages such as Java, JavaScript, Python, and Go API definitions: Swagger/Open API 3 Shell Scripting AWS or other cloud platforms' administration Site Reliability Engineering, DevOps, or similar roles Infrastructure as code and configuration management tools (eg Terraform, Ansible) CI/CD pipelines and automation practices Understanding of monitoring, logging, and alerting systems Kubernetes -...

Application Support Engineer - DV Cleared Our client is urgently looking for an experienced Application Support Engineer to join their team on a contract basis, initially for 6 months with a view to extend. Please note, the role is OUTSIDE of IR35. You must hold live UKIC DV. The role is on-site 4 days per week in Gloucester. Application Support Engineer - Key Skills: Must hold a live UKIC DV Understanding of networking and software architectures Understanding of structured text formats: JSON, XML, CSV The below skills are nice to have: Exposure to programming languages such as Java, JavaScript, Python, and Go API definitions: Swagger/Open API 3 Shell Scripting AWS or other cloud platforms' administration Site Reliability Engineering, DevOps, or similar roles Infrastructure as code and configuration management tools (eg Terraform, Ansible) CI/CD pipelines and automation practices Understanding of monitoring, logging, and alerting systems Kubernetes -...