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Job Summary We are seeking a highly skilled Senior Software Engineer specializing in Application Modernization to join our dynamic team. The successful candidate will be responsible for leading the transformation of legacy applications into modern, scalable solutions. This role offers an exciting opportunity to work on innovative projects that utilise a broad range of technologies including JavaScript, Java, C#, Python, and cloud platforms such as AWS and Azure. The ideal applicant will possess extensive experience in software development, front-end and back-end integration, and API design, contributing to the optimisation and modernisation of our application portfolio. Responsibilities Lead the design, development, and implementation of application modernization initiatives across diverse platforms. Collaborate with cross-functional teams to assess existing legacy systems and define migration strategies. Develop scalable and efficient code using languages such as JavaScript, Java, C#, Python, C++, Ruby on Rails, and VBA. Build and maintain APIs for seamless integration between various systems and services. Utilise version control tools including GitHub, SVN, Git, and manage code repositories effectively. Work with cloud services such as AWS and Azure to deploy and manage applications in cloud environments. Implement RESTful services ensuring high performance and responsiveness of applications. Conduct code reviews, optimise existing codebases, and ensure adherence to best practices in software development. Support application testing, debugging, optimisation, and documentation processes. Stay updated with emerging technologies to continuously improve application architecture and development practices. Experience Proven experience in software development with a focus on application modernization projects. Extensive knowledge of front-end development frameworks using JavaScript and related technologies. Strong background in back-end development with Java, C#, Python, C++, Ruby on Rails, .NET frameworks, and SQL databases such as MySQL and SQL Server. Hands-on experience with APIs (RESTful services), cloud platforms (AWS & Azure), Linux environments, version control systems (GitHub, SVN), and CI/CD pipelines. Familiarity with application deployment in cloud environments alongside containerisation tools is advantageous. Demonstrated ability to lead complex projects from conception through to deployment while collaborating effectively within multidisciplinary teams. This position offers an engaging environment for innovative software engineers eager to contribute to cutting-edge application transformation initiatives within a forward-thinking organisation. Job Types: Full-time, Permanent Benefits: Flexitime Work from home Application question(s): Do you have prior experience in app modernization? Experience: Development and modernization: 3 years (required) Work authorization: United Kingdom (required) Location: West London (preferred) Work Location: Hybrid remote in West London