12 of 12 Remote/Hybrid Legacy Applications Jobs in London

Inside IR35) Remote 6 months My client is seeking a DevOps/Infrastructure Engineer to join a platform team supporting critical legacy applications and infrastructure, providing L3 support, platform enhancements and CI/CD improvements. Key Requirements: Proven experience within DevOps, Infrastructure Engineering or Platform Support. Active … Clearance (used within the last 12 months) and Active NPPV3 (used within the last 6 months). Experience supporting legacy applications and infrastructure, including Oracle 11 databases, Elasticsearch and enterprise middleware technologies. Strong Linux and Windows Server administration experience, with exposure to Solaris, Red Hat Enterprise Linux ...

within a fast-paced investment management environment. Over time, the role will also contribute to the migration, modernization, and rationalization of legacy applications onto strategic platforms. Key Responsibilities Provide support and maintenance for business-critical front-office applications. Investigate, troubleshoot, and resolve application, data, and performance issues. … Develop and enhance applications using C#/.NET technologies. Design, develop, and optimize complex SQL queries, stored procedures, and database solutions. Build and support front-end functionality using React. Work closely with business users to understand requirements and deliver effective technical solutions. Produce operational and management reporting to support ...

drive transformational outcomes across frontend modernization, platform migrations, and AI adoption. In this role, you will lead complex Next.js migrations, architect high-performance applications, and build production AI solutions—all within customer environments. You'll work hands‐on-keyboard alongside customer teams, whether you're migrating a legacy … customer codebases for performance bottlenecks, architectural anti‐patterns, and optimization opportunities—delivering actionable roadmaps that drive measurable improvements. Architect and implement high‐performance Next.js applications , leveraging App Router, Server Components, streaming, ISR, edge functions, and advanced rendering strategies to meet enterprise scale and performance requirements. Optimize Core Web Vitals ...

London Contract Type: Contract Inside IR35 Security Clearance: BPSS/SC Clearance required In this contract, you will lead the architecture assessment of legacy application estates and design exactly how they will land … operate on a newly established AWS core cloud platform. Legacy Assessments: Conduct deep-dive architectural assessments of legacy applications, evaluating technology stacks, data flows, interfaces, and operational models. Target Landing Design: Define target account structures, network placements, compute/storage patterns, and IAM configurations using ...

OverviewIBM is seeking an experienced Application Consultant/Architect - AWS Cloud Migration to support the JSAPS Data Migration Discovery within the DWP's Legacy Tech Debt Programme.This programme is focused on identifying and defining the minimum viable dataset required to safely decommission JSAPS, a legacy benefits … within large-scale enterprise environments. Proven ability to define migration strategies, approaches, and roadmaps for complex transformation programmes. Experience working with legacy applications and databases, including assessment of migration risks and dependencies. Strong stakeholder management skills, with the ability to communicate effectively with both technical ...

some or all of the following would be advantageous: Microsoft .NET ASP.NET C# SQL Server Azure Modern web technologies Modernising legacy applications Legal technology or other regulated software environments Working with external development partners Why Apply? Lead and shape the engineering function within a growing software business. ...

with a daily rate of €500 - €700, primarily focused on server-side development within an Agile team. Key responsibilities include migrating legacy applications to a new architecture, leading IT solutions delivery, and mentoring junior colleagues. Candidates must be based in the UK and available on-site ...

Azure Administrator (AZ104). Experience of Azure AI would also be advantageous. You will also have extensive experience of supporting on premise and legacy applications. You will have technical experience of supporting Windows Server OS, SQL Server, Linux, Desktop, M365, D365, intune, Purview, Sentinel and Defender. You will ...

distributed system on Kubernetes Participate in the entire application lifecycle, focusing on coding and debugging Manage cutting-edge technologies to improve legacy applications Collaborate with Front-end developers to integrate user-facing elements with server side logic Gather and address technical and design requirements Follow emerging technologies … onboarding process for new customers, providing guidance and support to ensure successful integration of their existing and future systems Optimizing the performance of applications for full-scale production deployments Required Qualifications: Bachelor’s degree in computer programming, computer science, or a related field Strong technical communication skills, and ability ...

Java Engineer for a contract role based in London/Hybrid. You will work as part of an Agile team to migrate a legacy application to a new event-based architecture, handling server-side deployment effectively. The ideal candidate has strong core Java expertise and experience with SpringBoot ...

data solutions. Work with SQL to extract, transform, validate and reconcile data from multiple source systems. Perform complex data mapping between legacy applications and target platforms, including CRM systems such as Salesforce. Carry out data quality checks, cleansing and validation to ensure accurate and reliable migrations. Explain ...

critical delivery deadline at the end of February. We're looking to engage multiple experienced .NET Engineers to help deliver the migration of enterprise applications and databases from on-prem environments into AWS. This is an Outside IR35 contract, offering an initial six-month engagement, starting in September. … Role You'll join a dedicated engineering team responsible for modernising and migrating business-critical applications into AWS, working across the full software development lifecycle while helping deliver a high-profile transformation programme. Essential Skills Strong commercial experience with C# and .NET (.NET 6/7/ ...