1 to 25 of 30 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 ...

technology consultancy seeking a Data Engineer with 5 years+ commercial experience to join a high-profile team supporting the decommissioning of legacy applications and the migration of data to modern platforms within a leading global investment bank. This is initially a 6 month contract with very good … further develop their career in data engineering and data management within a complex enterprise environment. Responsibilities Support the decommissioning of legacy applications through the extraction, analysis, validation and migration of data to target platforms. Investigate data-related issues impacting business processes, applications and downstream systems. Analyse ...

from business users and translate business needs into technical solutions; communicate technical constraints in business terms. Maintain and enhance existing and legacy applications when required. Required qualifications, capabilities, and skills Minimum 10 years of hands‐on Python development experience. Strong preference for candidates with a financial services … Capability to translate business needs into technical solutions and explain technical constraints in business terms. Willingness to understand and work on legacy applications when required. Preferred qualifications, capabilities, and skills Prior experience with financial risk stack platforms such as SecDB, Quartz, or Athena. Knowledge of rates products ...

from business users and translate business needs into technical solutions; communicate technical constraints in business terms. Maintain and enhance existing and legacy applications when required. Required qualifications, capabilities, and skills Minimum 10 years of hands-on Python development experience. Strong preference for candidates with a financial services … Capability to translate business needs into technical solutions and explain technical constraints in business terms. Willingness to understand and work on legacy applications when required. Preferred qualifications, capabilities, and skills Prior experience with financial risk stack platforms such as SecDB, Quartz, or Athena. Knowledge of rates products ...

solutions from scratch, you will apply agentic AI to transform how projects are executed end‐to‐end. What you’ll do Architect AI‐powered applications using autonomous and semi‐autonomous agentic frameworks. Apply AI agents across all delivery phases: analysis, design, build, test, deploy, and operations. Modernise legacy applications using agentic AI for discovery, transformation, and refactoring. Define end‐to‐end architectures integrating traditional software, LLMs, vector stores, and orchestration. Drive AI adoption within Avanade Regions, enabling AI‐driven solution roadmaps. Contribute to solution planning and design across multi‐disciplinary and multi‐cloud environments. Develop ...

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 ...

site 8 days per month which is mandatory. Responsibilities Working as part of an Agile development team to deliver the migration of the legacy application to a new event-based and service-oriented architecture solution, working in collaboration with the Solution Architect, Technical Lead, Application architects and other ...

deployment. 8 days on site per month. Responsibilities & Duties Work as part of an Agile development team to deliver the migration of the legacy application to a new event‐based and service‐oriented architecture solution, collaborating with the Solution Architect, Technical Lead, Application architects and other stakeholders. Lead ...

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. ...

leading international professional services organisation. This is a highly technical analysis role focused on understanding and documenting the databases behind a complex legacy business application. You will work with Developers, Architects and business specialists … establish how the existing system operates and support its migration into modern cloud and document-based database technologies. Key responsibilities Analyse legacy applications, databases and source systems. Reverse-engineer database structures where documentation is limited. Document schemas, tables, columns, relationships, indexes and constraints. Identify business rules, data ...

Windows operating system architecture, application dependencies, legacy technologies, and software compatibility. They will be responsible for analysing, remediating and migrating business-critical applications operating within highly complex environments where compatibility, stability and service continuity are paramount. The engineer will be expected to resolve deeply technical migration issues … involving legacy applications, obsolete components, scripting languages, dynamic link libraries (DLLs), COM objects, registry dependencies and deprecated Windows technologies. The role will be office based, 5 days a week in central London. ...

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 ...

modernisation of front-office web applications. As an experienced Software Engineer you'll build and maintain Angular front-ends, migrate legacy applications onto modern frameworks, and deliver clean, reliable code to a high standard - with the seniority to mentor other developers along the way. 6+ years' full ...

Capability to translate business needs into technical solutions and explain technical constraints in business terms Willing to understand and work on legacy applications when required Willing to provide first class support to the business Preferred Qualifications Prior experience with other financial risk stack platforms such as SecDB ...

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 ...

Capability to translate business needs into technical solutions and explain technical constraints in business terms Willing to understand and work on legacy applications when required Preferred Qualifications Prior experience with other financial risk stack platforms such as SecDB, Quartz, or Athena Knowledge of rates products including Swaps ...

Capability to translate business needs into technical solutions and explain technical constraints in business terms Willing to understand and work on legacy applications when required Preferred Qualifications Prior experience with other financial risk stack platforms such as SecDB, Quartz, or Athena Knowledge of rates products including Swaps ...

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 ...

client is supporting a major government transformation programme seeking an experienced Data Architect to lead the discovery and documentation of a complex Legacy data estate ahead of a large-scale digital transformation. This is an opportunity to play a key role in modernising a critical public service … procurement, solution design and future migration planning. This engagement will involve extensive stakeholder collaboration, workshop facilitation and technical analysis across multiple Legacy applications and data sources. Key Responsibilities Lead discovery and analysis of the current-state data architecture. Develop conceptual, logical and physical data models. Document data ...

wants to use that experience to influence application modernisation rather than day-to-day feature development. You'll be responsible for: Reviewing existing PowerBuilder applications Investigating performance, stability and technical issues Assessing application architecture and integrations Identifying technical risks and improvement opportunities Producing recommendations and technical documentation Helping define … future modernisation and migration strategies Working closely with technical and business stakeholders Experience assessing or modernising legacy applications would be highly beneficial. Location: Nearest tube Liverpool St/Bank (2 days per week) If you like to hear more, please apply for more information. ...