1 to 25 of 3,615 Legacy Systems Jobs in England

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 … 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 More ❯

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 ❯

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 ❯

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 ❯

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 ❯

property investment. In our Senior Solutions Architect role, you’ll be playing a crucial role in our journey to migrate our legacy systems onto Dynamics CE across the business. Off the back of our recent merger, there are additional legacy systems that will also … property investment. In our Senior Solutions Architect role, you’ll be playing a crucial role in our journey to migrate our legacy systems onto Dynamics CE across the business. Off the back of our recent merger, there are additional legacy systems that will also … is what your day will look like as our Senior Solutions Architect: Working with Business Analysts, Project Managers and System Developers to assess legacy system functionality across Amplius and design new ones to be fed into Dynamics CE.Taking feeds and requirements from Business Analysts, subsequently documenting the designs 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 Network 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 … skills and make 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 ongoing transformation to … cloud-based (AWS) software as a service (SaaS). Your role would be in 60% focussing on supporting Applications/systems that sit on SQL, and 40% would be general Infrastructure support. Therefore we are looking for all-arounder, with good SQL knowledge. What You Will Do Provide expert 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 ❯

initiative goes far beyond a basic lift and shift; it’s a forward-looking transformation that blends the stability of mature legacy systems with the innovation of cloud-first, AI-driven architecture. As a senior data engineer, you’ll play a critical role in building and optimizing … 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 More ❯

initiative goes far beyond a basic lift and shift; it’s a forward-looking transformation that blends the stability of mature legacy systems with the innovation of cloud-first, AI-driven architecture. As a senior data engineer, you’ll play a critical role in building and optimizing … 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 More ❯

initiative goes far beyond a basic lift and shift; it’s a forward-looking transformation that blends the stability of mature legacy systems with the innovation of cloud-first, AI-driven architecture. As a senior data engineer, you’ll play a critical role in building and optimizing … 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 More ❯

initiative goes far beyond a basic lift and shift; it’s a forward-looking transformation that blends the stability of mature legacy systems with the innovation of cloud-first, AI-driven architecture. As a senior data engineer, you’ll play a critical role in building and optimizing … 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 More ❯

initiative goes far beyond a basic lift and shift; it’s a forward-looking transformation that blends the stability of mature legacy systems with the innovation of cloud-first, AI-driven architecture. As a senior data engineer, you’ll play a critical role in building and optimizing … 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 More ❯

initiative goes far beyond a basic lift and shift; it’s a forward-looking transformation that blends the stability of mature legacy systems with the innovation of cloud-first, AI-driven architecture. As a senior data engineer, you’ll play a critical role in building and optimizing … 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 More ❯

initiative goes far beyond a basic lift and shift; it’s a forward-looking transformation that blends the stability of mature legacy systems with the innovation of cloud-first, AI-driven architecture. As a senior data engineer, you’ll play a critical role in building and optimizing … 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 More ❯

initiative goes far beyond a basic lift and shift; it’s a forward-looking transformation that blends the stability of mature legacy systems with the innovation of cloud-first, AI-driven architecture. As a senior data engineer, you’ll play a critical role in building and optimizing … 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 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 ❯

Software Developer (Legacy Systems) AI for Healthcare Location: UK Remote Salary: £50,000£55,000 Tech Stack: VB.NET | C# | .NET | Azure Building Smarter Healthcare with AI At WeareDecoded, were helping our client secure the right individuals to reshape the future of healthcare through intelligent technology. Their mission … admin overload, and turn untapped data into actionable insights. The Role Were looking for a Software Developer who thrives on modernising legacy systems and making them future-ready. Youll be diving deep into their platform, helping them refactor, rebuild and integrate them into a modern cloud-native … Azure services Collaborate closely with our AI, DevOps, and healthcare integration teams Solve real-world technical challenges in complex, regulated healthcare environments Help ensure systems are secure, performant, and easy to maintain What Youll Bring Solid experience working with VB.NET, C#, and .NET Framework/.NET Core Experience working 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 ❯

join a high-impact digital transformation project within a secure government environment. This role focuses on the consolidation and migration of legacy systems into a new, centralised ERP platform . You’ll play a key role in mapping, transforming, and validating large datasets across multiple departments, ensuring … data integrity and compliance throughout the migration lifecycle. Key Responsibilities: Analyse and profile data across legacy systems to understand current data structures and quality Work closely with business users and technical teams to define and document data requirements Support data mapping, transformation, and cleansing processes to prepare … scale system migration projects ✅ Strong SQL skills and familiarity with Excel, Power BI or other data visualisation tools ✅ Experience working with legacy systems and integrating into modern ERP platforms (e.g., Oracle, SAP, Workday, Unit4, etc.) ✅ Knowledge of data governance and data quality best practices ✅ Excellent communication and More ❯

join a high-impact digital transformation project within a secure government environment. This role focuses on the consolidation and migration of legacy systems into a new, centralised ERP platform . You’ll play a key role in mapping, transforming, and validating large datasets across multiple departments, ensuring … data integrity and compliance throughout the migration lifecycle. Key Responsibilities: Analyse and profile data across legacy systems to understand current data structures and quality Work closely with business users and technical teams to define and document data requirements Support data mapping, transformation, and cleansing processes to prepare … scale system migration projects ✅ Strong SQL skills and familiarity with Excel, Power BI or other data visualisation tools ✅ Experience working with legacy systems and integrating into modern ERP platforms (e.g., Oracle, SAP, Workday, Unit4, etc.) ✅ Knowledge of data governance and data quality best practices ✅ Excellent communication and More ❯

join a high-impact digital transformation project within a secure government environment. This role focuses on the consolidation and migration of legacy systems into a new, centralised ERP platform . You’ll play a key role in mapping, transforming, and validating large datasets across multiple departments, ensuring … data integrity and compliance throughout the migration lifecycle. Key Responsibilities: Analyse and profile data across legacy systems to understand current data structures and quality Work closely with business users and technical teams to define and document data requirements Support data mapping, transformation, and cleansing processes to prepare … scale system migration projects ✅ Strong SQL skills and familiarity with Excel, Power BI or other data visualisation tools ✅ Experience working with legacy systems and integrating into modern ERP platforms (e.g., Oracle, SAP, Workday, Unit4, etc.) ✅ Knowledge of data governance and data quality best practices ✅ Excellent communication and More ❯

join a high-impact digital transformation project within a secure government environment. This role focuses on the consolidation and migration of legacy systems into a new, centralised ERP platform . You’ll play a key role in mapping, transforming, and validating large datasets across multiple departments, ensuring … data integrity and compliance throughout the migration lifecycle. Key Responsibilities: Analyse and profile data across legacy systems to understand current data structures and quality Work closely with business users and technical teams to define and document data requirements Support data mapping, transformation, and cleansing processes to prepare … scale system migration projects ✅ Strong SQL skills and familiarity with Excel, Power BI or other data visualisation tools ✅ Experience working with legacy systems and integrating into modern ERP platforms (e.g., Oracle, SAP, Workday, Unit4, etc.) ✅ Knowledge of data governance and data quality best practices ✅ Excellent communication and 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. Responsibilities: Oversee the planning, execution, and … management of data transfers from legacy systems to Microsoft Dynamics 365. Ensure data accuracy, consistency, and compliance with business needs throughout the migration lifecycle. Apply a strong understanding of data migration principles and best practices. Utilize data extraction, transformation, and loading (ETL) tools and techniques. Deliver D365 … F&O solutions and integrations using Azure services. Successfully migrated Dynamics 365 F&O multiple times, leading data migration from legacy systems to D365. Requirements: Extensive experience with D365 F&O data migration projects. Strong knowledge of data migration principles and ETL tools. Experience with Azure services More ❯