1 to 25 of 792 Legacy Systems Jobs in London

service-specific delivery frameworks, tools, and best practices. The Service Specialist brings deep expertise in modernization strategies and execution in large legacy systems modernization programs, serving as a trusted technical advisor to both clients and internal teams. This role is key to ensuring delivery quality, enabling service … adoption, and evolving the technical maturity of the offering. Job responsibilities Provides technical guidance on Enterprise Legacy Systems Modernization. Supports delivery teams in solving complex client problems. Contributes to solution design, proposals, and pre-sales activities. Develops and refines service accelerators and reference architectures. Mentors engineers and … asset adoption, and talent uplift. Requires 10+ years of experience in software engineering or technical consulting. Requires 3+ years in Enterprise Legacy Systems Modernization advisory. Focuses on technical depth in modernization strategies and cloud architecture. Job qualifications Technical Skills Experience supporting solution design and technical delivery in More ❯

SQL, and the .NET Framework (versions 4.6.2 and 4.8). The ideal candidate will be responsible for maintaining and enhancing our legacy systems, ensuring high-quality code and thorough testing. You will work independently and as part of a team to deliver reliable and efficient backend solutions. … family, retirement Employee, friends and family discounts across 1200+ retail, hospitality and lifestyle brands Key Responsibilities Maintain, enhance, and support legacy backend systems using C#, Web Forms, SQL, and the .NET Framework (4.6.2 and 4.8) Collaborate with cross-functional teams to gather requirements and deliver solutions that … code changes, technical specifications, and system configurations Stay up-to-date with industry trends and advancements in technology to continuously improve legacy systems Skills Bachelor's degree (or equivalent) in Computer Science, Information Technology, or a related field Proven experience as a Backend Developer with a focus More ❯

Job Description IT Systems Engineer 12 Months FTC offering £46,000 per annum + great benefits £8,000 Travel Assistance (HCAS) Generous pension (12% Personal Contribution + 23% Employer Contribution) Up to 35 days per year About the role This is an exciting opportunity to play a key role … and make a positive impact? We are looking for an experienced IT professional to join during the transition of legacy case management systems to modern, cloud-based solutions. Your role will focus on maintaining and supporting on-prem legacy systems during the ongoing transformation … cloud-based (AWS) software as a service (SaaS). What You Will Do Provide expert support and maintenance for legacy case management systems (Extranet, CMS, DTS, EKS2, and ADMS) in collaboration with the IT teams. Ensure the legacy systems continue to run smoothly during More ❯

Bachelor's degree in computer science, Engineering, related field, or equivalent experience. Substantial hands-on technical experience with mainframe, non-x86 legacy systems and with technologies such as COBOL, JCL, CICS, DB2 for z/OS, Assembler, PL/I, Java, Rexx, flat/sequential files, GDGs … and VSAM. Proven track record in a technical lead role migrating workloads from mainframe and non-x86 legacy systems to distributed x86 infrastructures either on-premises or on to the Cloud. Deep experience integrating mainframe and non-x86 legacy systems with distributed Linux-based … audiences AWS associate or professional level certifications (e.g., Solutions Architect Associate or Professional, DevOps Engineer Professional) preferred Experience leading customers with mainframe and legacy modernization initiatives. Experience with tools and methodologies used to migrate mainframe workloads via hardware/middleware emulation, automated code conversion, and re-platforming. Experience More ❯

Bachelor's degree in computer science, Engineering, related field, or equivalent experience. Substantial hands-on technical experience with mainframe, non-x86 legacy systems and with technologies such as COBOL, JCL, CICS, DB2 for z/OS, Assembler, PL/I, Java, Rexx, flat/sequential files, GDGs … and VSAM. Proven track record in a technical lead role migrating workloads from mainframe and non-x86 legacy systems to distributed x86 infrastructures either on-premises or on to the Cloud. Deep experience integrating mainframe and non-x86 legacy systems with distributed Linux-based … audiences. AWS associate or professional level certifications (e.g., Solutions Architect Associate or Professional, DevOps Engineer Professional) preferred. Experience leading customers with mainframe and legacy modernization initiatives. Experience with tools and methodologies used to migrate mainframe workloads via hardware/middleware emulation, automated code conversion, and re-platforming. Experience More ❯

Expiry Date: 21.07.2025 Job Description: Our global client is looking for a D365 F&O specialist with extensive experience migrating from legacy systems to D365 F&O. This is a hybrid role outside IR35 initially for 9 months with a good chance to extend. The Data Migration … Lead will oversee the planning, execution, and management of data transfers from legacy systems to Microsoft Dynamics 365. Responsibilities include ensuring data accuracy, consistency, and compliance with business needs throughout the entire migration lifecycle. Requirements include: Strong understanding of data migration principles and best practices. Experience with … O and integration using Azure services. Proven success in migrating Dynamics 365 F&O multiple times and leading data migration from legacy systems to D365. #J-18808-Ljbffr More ❯

Our global client is looking for a D365 F&O Data Migration Lead with extensive experience migrating from legacy systems to D365 F&O. This is a hybrid role outside IR35 initially for 9 months , with a good chance to extend. The Data Migration Lead will oversee … the planning, execution, and management of data transfers from legacy systems to Microsoft Dynamics 365. Responsibilities include ensuring data accuracy, consistency, and compliance with business needs throughout the entire migration lifecycle. Requirements include: Strong understanding of data migration principles and best practices. Experience with data extraction, transformation … integration using Azure services. Proven success in migrating Dynamics 365 F&O multiple times, with leadership experience in data migration from legacy systems to D365. #J-18808-Ljbffr More ❯

large-scale SQL-to-SQL data transformation project. As part of this engagement, they are identifying key data assets across multiple legacy systems and preparing for migration to a new Azure-based environment. They are now looking to engage a Technical/Data Architect to support both … integration and design efforts across this transformation. Key Responsibilities: Develop script-based integration between two legacy systems and a new Azure service. Work closely with stakeholders to understand existing data flows and system behaviours. Create both high-level and low-level design documentation for the new cloud … scale transformation projects. Strong knowledge of Azure services, particularly in the context of data and system integration. Experience scripting integration between legacy systems and cloud platforms. Ability to produce clear, robust architectural documentation. Location: Primarily remote; occasional on-site meetings may be required (1-2 times during More ❯

Social network you want to login/join with: Senior Full Stack C# .NET Developer, west london col-narrow-left Client: WebX Systems Ltd. Location: west london, United Kingdom Job Category: Other - EU work permit required: Yes col-narrow-right Job Views: 4 Posted: 31.05.2025 Expiry Date: 15.07.2025 col … wide Job Description: Senior Full Stack C# .NET DeveloperFully Remote (UK Residents Only) About WebX Systems At WebX, we specialise in technical publishing and content management solutions for the aerospace and defence sectors worldwide. Our flagship products— UltraCSDB, UltraAuthor, UltraXML , and UltraPortal —are used globally and combine proven legacy systems with cutting-edge, cloud-native innovations. As a privately owned UK business, we take pride in delivering exceptional software and highly responsive support. Joining our close-knit team means your work has direct and meaningful impact. We work closely with customers to ensure our solutions meet More ❯

Social network you want to login/join with: Senior Full Stack C# .NET Developer, south west london col-narrow-left Client: WebX Systems Ltd. Location: south west london, United Kingdom Job Category: Other - EU work permit required: Yes col-narrow-right Job Views: 4 Posted: 31.05.2025 Expiry Date … 15.07.2025 col-wide Job Description: Senior Full Stack C# .NET DeveloperFully Remote (UK Residents Only) About WebX Systems At WebX, we specialise in technical publishing and content management solutions for the aerospace and defence sectors worldwide. Our flagship products— UltraCSDB, UltraAuthor, UltraXML , and UltraPortal —are used globally and combine … proven legacy systems with cutting-edge, cloud-native innovations. As a privately owned UK business, we take pride in delivering exceptional software and highly responsive support. Joining our close-knit team means your work has direct and meaningful impact. We work closely with customers to ensure our More ❯

Senior Full Stack C# .NET DeveloperFully Remote (UK Residents Only) About WebX Systems At WebX, we specialise in technical publishing and content management solutions for the aerospace and defence sectors worldwide. Our flagship products— UltraCSDB, UltraAuthor, UltraXML , and UltraPortal —are used globally and combine proven legacy systems … Stack .NET Developer to help evolve our product suite. You’ll work across both legacy Windows desktop applications and modern web-based systems and help lead the transition toward cloud-native architecture. This role is perfect for someone who enjoys innovating within established environments while also driving … quality. What We Offer Salary : £70,000 – £85,000 depending on experience Technical Growth – Work across a diverse technology landscape, from legacy systems to cutting-edge cloud-native tools. Autonomy – Freedom to shape technical decisions and make a significant impact on product direction and architecture. Career Advancement More ❯

About the Role: As Technical Lead you will play a central role in designing and delivering enterprise-grade solutions, managing both legacy systems and the strategic migration to Azure-based cloud platforms. You’ll lead by example, guiding a cross-functional team through complex technical decisions, ensuring … delivery standards, and alignment with the wider enterprise architecture. This role offers the opportunity to contribute to large-scale modernisation while maintaining essential business systems used across global markets. Key Responsibilities: Lead the technical design and decision-making for all team deliverables, ensuring architectural alignment and long-term maintainability. … technical delivery of features, with a focus on quality, scalability, and performance. Work closely with architects to contribute to the ongoing evolution of enterprise systems, balancing innovation with operational stability. Provide technical leadership, mentoring developers and fostering a high-performing Agile team culture. Collaborate with DevOps and platform engineering More ❯

About the Role: As Technical Lead you will play a central role in designing and delivering enterprise-grade solutions, managing both legacy systems and the strategic migration to Azure-based cloud platforms. You’ll lead by example, guiding a cross-functional team through complex technical decisions, ensuring … delivery standards, and alignment with the wider enterprise architecture. This role offers the opportunity to contribute to large-scale modernisation while maintaining essential business systems used across global markets. Key Responsibilities: Lead the technical design and decision-making for all team deliverables, ensuring architectural alignment and long-term maintainability. … technical delivery of features, with a focus on quality, scalability, and performance. Work closely with architects to contribute to the ongoing evolution of enterprise systems, balancing innovation with operational stability. Provide technical leadership, mentoring developers and fostering a high-performing Agile team culture. Collaborate with DevOps and platform engineering More ❯

About the Role: As Technical Lead you will play a central role in designing and delivering enterprise-grade solutions, managing both legacy systems and the strategic migration to Azure-based cloud platforms. You’ll lead by example, guiding a cross-functional team through complex technical decisions, ensuring … delivery standards, and alignment with the wider enterprise architecture. This role offers the opportunity to contribute to large-scale modernisation while maintaining essential business systems used across global markets. Key Responsibilities: Lead the technical design and decision-making for all team deliverables, ensuring architectural alignment and long-term maintainability. … technical delivery of features, with a focus on quality, scalability, and performance. Work closely with architects to contribute to the ongoing evolution of enterprise systems, balancing innovation with operational stability. Provide technical leadership, mentoring developers and fostering a high-performing Agile team culture. Collaborate with DevOps and platform engineering More ❯

About the Role: As Technical Lead you will play a central role in designing and delivering enterprise-grade solutions, managing both legacy systems and the strategic migration to Azure-based cloud platforms. You’ll lead by example, guiding a cross-functional team through complex technical decisions, ensuring … delivery standards, and alignment with the wider enterprise architecture. This role offers the opportunity to contribute to large-scale modernisation while maintaining essential business systems used across global markets. Key Responsibilities: Lead the technical design and decision-making for all team deliverables, ensuring architectural alignment and long-term maintainability. … technical delivery of features, with a focus on quality, scalability, and performance. Work closely with architects to contribute to the ongoing evolution of enterprise systems, balancing innovation with operational stability. Provide technical leadership, mentoring developers and fostering a high-performing Agile team culture. Collaborate with DevOps and platform engineering More ❯

EDB supports major government organizations, financial services, media and information technology companies. EDB’s data-driven solutions enable customers to modernize legacy systems and break data silos while leveraging enterprise-grade open source technologies. EDB delivers the confidence of up to 99.999% high availability with mission critical … EDB supports major government organizations, financial services, media and information technology companies. EDB’s data-driven solutions enable customers to modernize legacy systems and break data silos while leveraging enterprise-grade open source technologies. EDB delivers the confidence of up to 99.999% high availability with mission critical … EDB Postgres AI platform. Propose, prototype, and implement solutions that support operational and analytical requirements. Deployment & Integration: Lead the deployment of data and AI systems within diverse and dynamic environments. Develop scalable processes to integrate EDB Postgres AI with existing data infrastructure, ensuring smooth interoperability with other databases, applications More ❯

We are seeking a skilled and detail-oriented Finance Analyst -Data Migration to support the successful migration of financial data from legacy systems to Microsoft dynamics as part of a wider systems implementation project. This role will be critical in ensuring data integrity, minimising business disruption … collaboratively in a fast-paced, dynamic environment What will I be doing? Supporting the end-to-end data migration process from legacy systems to the new platform Extracting, cleansing, validating, and loading large volumes of data accurately and efficiently Developing and executing data migration plans, schedules, and … reconciliation processes Creating and maintaining data mapping documentation between the two systems Supporting user acceptance testing (UAT) and resolving data-related issues Providing post-migration support, including validation, reconciliation, and troubleshooting Monitoring progress, identifying risks, and reporting on migration status to project stakeholders What You’ll Bring... The good More ❯

a 12-month project starting from the end of February. This role will manage a large-scale migration of data from legacy systems to NetSuite across multiple countries. Key Responsibilities: Analyze and cleanse legacy data to meet NetSuite standards. Lead data cleansing efforts and coordinate … maps for all data objects. Identify Master Data owners by region and establish a data governance framework. Coordinate data sourcing from legacy systems and map to NetSuite formats. Develop or modify tools for data transformation and ETL processes. Oversee migration of master and transactional data to NetSuite. More ❯

We are seeking an experienced Project Manager to lead the end-to-end implementation of Microsoft Dynamics 365, overseeing the transition from a legacy platform to a modern, scalable CRM/ERP solution. This role is critical in enabling operational efficiency and enhancing user experience across the organisation. … project lifecycle of the D365 implementation, from initial planning through to delivery and post-go-live support. Manage the transition from legacy systems to Microsoft Dynamics 365 with minimal disruption to business operations. Define project scope, objectives, deliverables, and success metrics in collaboration with key stakeholders. Develop … or Finance & Operations implementations. Strong understanding of the D365 platform and common integration and data migration challenges. Experience managing transitions from legacy systems to Microsoft cloud solutions. Excellent stakeholder management and communication skills across technical and non-technical audiences. Experience working in Agile, Waterfall, or hybrid delivery More ❯

We are seeking an experienced Project Manager to lead the end-to-end implementation of Microsoft Dynamics 365, overseeing the transition from a legacy platform to a modern, scalable CRM/ERP solution. This role is critical in enabling operational efficiency and enhancing user experience across the organisation. … project lifecycle of the D365 implementation, from initial planning through to delivery and post-go-live support. Manage the transition from legacy systems to Microsoft Dynamics 365 with minimal disruption to business operations. Define project scope, objectives, deliverables, and success metrics in collaboration with key stakeholders. Develop … or Finance & Operations implementations. Strong understanding of the D365 platform and common integration and data migration challenges. Experience managing transitions from legacy systems to Microsoft cloud solutions. Excellent stakeholder management and communication skills across technical and non-technical audiences. Experience working in Agile, Waterfall, or hybrid delivery More ❯

We are seeking an experienced Project Manager to lead the end-to-end implementation of Microsoft Dynamics 365, overseeing the transition from a legacy platform to a modern, scalable CRM/ERP solution. This role is critical in enabling operational efficiency and enhancing user experience across the organisation. … project lifecycle of the D365 implementation, from initial planning through to delivery and post-go-live support. Manage the transition from legacy systems to Microsoft Dynamics 365 with minimal disruption to business operations. Define project scope, objectives, deliverables, and success metrics in collaboration with key stakeholders. Develop … or Finance & Operations implementations. Strong understanding of the D365 platform and common integration and data migration challenges. Experience managing transitions from legacy systems to Microsoft cloud solutions. Excellent stakeholder management and communication skills across technical and non-technical audiences. Experience working in Agile, Waterfall, or hybrid delivery More ❯

and maintain robust data pipelines that support critical business applications and analytics • Analyze, re-engineer and modernize existing ETL processes from legacy systems into scalable cloud-native solutions • Contribute to the development and optimization of a cloud-based data platform, leveraging tools like snowflake, AWS and airflow … ready code • Participate in code reviews, ensuring adherence to best practices and high engineering standards • Investigate data quality issues and implement monitoring and alterting systems to ensure pipeline reliability • Document workflows, data lineage and technical designs to support maintainability and knowledge sharing • Champion a culture of continuous improvement, experimentation … prem and cloud-based environments • Good working knowledge and hands on experience working with Teradata and Infomatica. • Proficiency in working with legacy systems and traditional ETL workflows • Solid experience building data pipelines using modern tools (Airflow, DBT, Glue etc.) and working with large volumes of structures and More ❯

clients. This is a large-scale transformation programme that involves the full range of architectural disciplines required to successfully migrate complex legacy systems to Azure cloud infrastructure. We are looking for professionals who are comfortable working in a fast-paced, regulated environment and who have experience delivering … The Project The engagement covers a full data centre exit and cloud migration programme. It includes a combination of rehosting, replatforming and refactoring legacy applications into cloud-native Azure solutions, as well as associated infrastructure and data migration streams. We are looking for experienced: Migration Architects – skilled in … and align technology with business goals across the programme. Technical Solution Architects – to design end-to-end technical solutions and ensure seamless integration across systems and platforms. Business Domain Architects – to bridge business needs and technical delivery, providing contextual insight into legacy systems and domain-specific More ❯

at Natobotics Get AI-powered advice on this job and more exclusive features. Design, develop, and maintain ETL processes to move data from source systems to Snowflake, Teradata and SQL Server environments. Build scalable data pipelines for processing and storing large datasets. Collaborate with analysts, and business stakeholders to … and integrity throughout the data lifecycle. Maintain and improve existing data architectures and workflows to meet business requirements. Create and maintain documentation for data systems, pipelines, and processes. Monitor and troubleshoot data pipeline performance issues and resolve them promptly. Assist in the migration and integration of data from legacy systems into Snowflake, and other strategic data stores. Role : Data Engineer Work Mode : Hybrid Contract Role Location : London OR Edinburgh Experience : 10 -12 Years Job Description Design, develop, and maintain ETL processes to move data from source systems to Snowflake, Teradata and SQL Server environments. Build More ❯

IT Project Manager Manufacturing Systems Transformation Pay Competitive Location London/England Employment type Full-Time Job Description Req#: 70211 *This role can be located in UK, Poland, Portugal, Switzerland or Italy* At PMI, we’ve chosen to do something incredible. We’re totally redefining our business and building … Platforms (IT Infrastructure, Corporate Platform -SAP-, Supply Chain and QA Operations as well as affiliates IT Operations teams) to deliver a complex integrated eco-systems as well as gaining a deep understanding of our logistics, manufacturing and quality core processes to run a manufacturing site. While we see this … outcomes and timelines, through the application of agile and project management practices. Specifically, you will lead the IT stream of the Legacy systems transformation program, which is looking at modernising manufacturing execution critical applications system landscape currently deployed over 30 locations, to fit the factory of the More ❯