5 of 5 Contract Legacy Applications Jobs in the UK

rate - circa £450 (outside ir35) We are seeking an experienced Software Developer with strong commercial AWS expertise to support the transition from legacy on-prem systems to modern, cloud-native solutions. You will play a key role in building scalable, serverless microservices using AWS and TypeScript within … collaborative, agile environment. Key Responsibilities Develop and deliver serverless microservices using AWS Lambda, API Gateway, and TypeScript Contribute to replacing legacy applications with modern cloud-native architectures Enhance existing products with new features, bug fixes, and performance improvements Collaborate closely with cross-functional teams using Agile methodologies ...

ANDOVER (2 DAYS ON-SITE) - SECTOR: DEFENCE/GOVERNMENT Lead solution architecture activities across a range of complex technology projects and programmes Support legacy application modernisation and migration initiatives Produce high-level solution designs, architectural documentation, and technical artefacts Collaborate with multidisciplinary engineering, delivery, and business teams Engage ...

across all systems. The programme spans a broad and complex application estate — including core banking platforms, identity infrastructure, integration middleware, containerised workloads, and legacy line-of-business applications. This role requires someone who can build and maintain the hardening automation pipeline and also operate effectively at the application … monthly patching processes, including vulnerability reporting, approvals, and phased deployments Troubleshoot hardening-related issues across Docker, AppArmor, kernel settings, filesystems, and legacy applications Create pre-migration audit scripts to capture server configurations and dependencies Support and remediate issues across complex application environments including Ping, Netcall, SFTP, syslog ...

across all systems. The programme spans a broad and complex application estate — including core banking platforms, identity infrastructure, integration middleware, containerised workloads, and legacy line-of-business applications. This role requires someone who can build and maintain the hardening automation pipeline and also operate effectively at the application … monthly patching processes, including vulnerability reporting, approvals, and phased deployments Troubleshoot hardening-related issues across Docker, AppArmor, kernel settings, filesystems, and legacy applications Create pre-migration audit scripts to capture server configurations and dependencies Support and remediate issues across complex application environments including Ping, Netcall, SFTP, syslog ...

24.04 LTS while implementing stringent CIS Level 2 security standards across a diverse and business-critical environment. The Linux Engineer will work closely with applications—troubleshooting compatibility issues, identifying why hardened configurations break services, and delivering secure, practical solutions. The environment includes core banking systems, identity platforms, middleware, containerised … workloads, and legacy applications, so adaptability and problem-solving are key Skills needed from the Linux Engineer: Strong Linux administration experience (Ubuntu preferred), including system internals and security Experience upgrading to Ubuntu 24.04 from an older version Advanced automation skills using Ansible and Bash scripting Hands ...