1 to 25 of 368 Legacy Systems Jobs in England

for the chosen solution. Your Profile Essential skills/knowledge/experience: Understand the Guidewire Data Model and the Application Landscape. Experience in integrating Guidewire Claims Centre with downstream systems including finance systems (general ledger), payment systems and documents management systems. Experience in integrating Guidewire Claims Centre V10 and SaaS Cloud with third party/broker policy … management systems. Experienced in migrating data from legacy systems to Guidewire Claims Centre. Expertise in reconciling data from Guidewire with Datawarehouse. Experience and abilities demonstrated with GOSU programming, XML, PCF, REST and SOAP. Experience with source code management systems such as Subversion, GitHub. Knowledge of General Insurance domain and claims processes. Experience working in multiple technologies More ❯

for the chosen solution. Your Profile Essential skills/knowledge/experience: Understand the Guidewire Data Model and the Application Landscape. Experience in integrating Guidewire Claims Centre with downstream systems including finance systems (general ledger), payment systems and documents management systems. Experience in integrating Guidewire Claims Centre V10 and SaaS Cloud with third party/broker policy … management systems. Experienced in migrating data from legacy systems to Guidewire Claims Centre. Expertise in reconciling data from Guidewire with Datawarehouse. Experience and abilities demonstrated with GOSU programming, XML, PCF, REST and SOAP. Experience with source code management systems such as Subversion, GitHub. Knowledge of General Insurance domain and claims processes. Experience working in multiple technologies More ❯

testing strategies to ensure parity and quality. Assist in managing a hybrid Oracle/.NET environment during phased rollout. Contribute to BAU operations and the stability of the legacy system while migration activities are underway. Required Skills & Experience 5+ years of experience developing in Oracle PL/SQL, including deep knowledge of stored procedures, triggers, and packages. Proven … to work collaboratively in a cross-functional team environment. Strong problem-solving ability and attention to technical detail. Excellent communication skills, with the ability to document and explain complex systems clearly. Desirable Skills Experience working with legacy PHP systems and their integration with Oracle. Exposure to AI-assisted development tools for code analysis and migration. Familiarity More ❯

testing strategies to ensure parity and quality. Assist in managing a hybrid Oracle/.NET environment during phased rollout. Contribute to BAU operations and the stability of the legacy system while migration activities are underway. Required Skills & Experience 5+ years of experience developing in Oracle PL/SQL, including deep knowledge of stored procedures, triggers, and packages. Proven … to work collaboratively in a cross-functional team environment. Strong problem-solving ability and attention to technical detail. Excellent communication skills, with the ability to document and explain complex systems clearly. Desirable Skills Experience working with legacy PHP systems and their integration with Oracle. Exposure to AI-assisted development tools for code analysis and migration. Familiarity More ❯

JavaScript, MSSQL, Postgres, RabbitMQ, and Redis is essential.This is a challenging and varied role, offering the opportunity to lead complex development projects and work with both modern and legacy systems. The position requires excellent problem-solving abilities and a broad technical skill set. Benefits: * 25 days annual leave + Bank Holidays* Birthday off* Christmas shutdown* Discretionary bonus* Pension … quality and integrity* Optimise database performance Requirements: * Proven experience in web and software development* Hands-on experience with Redis or similar caching solutions* Proficient with Git and version control systems* Familiarity with SOLR or equivalent search engines* Experience building and consuming APIs* Experience with server management and hosting infrastructure* Strong skills in Bootstrap and responsive frameworks* Knowledge of AWS More ❯

C#) architecture and we're looking for an experienced Oracle Developer to play a key role in this journey. You'll work at the intersection of legacy systems and new architecture, translating complex logic into scalable, maintainable C# code. What You'll Be Working On: Rewriting complex PL/SQL logic into performant, readable C# code. Decoupling … types into .NET equivalents, ensuring performance and integrity. Collaborating on the migration from Oracle to Postgres or MySQL. Supporting a hybrid environment during rollout, where legacy Oracle systems and new .NET components coexist. Utilising AI-assisted tools for code analysis, documentation, and transformation. What We're Looking For: Oracle PL/SQL experience, including deep expertise in … in database migration from Oracle to Postgres or MySQL. Excellent analytical and problem-solving skills, with strong attention to detail. Clear communication skills with the ability to explain complex systems and document processes. Desirable Experience: Experience working with PHP systems that integrate with Oracle databases. Familiarity with AI-assisted development tools. Background in data modelling, version control of More ❯

the existing team to re-engineer Oracle PL/SQL stored procedures into C# services. Design and implement .NET-based components that integrate with both legacy PHP systems and new PostgreSQL databases. Work closely with business analysts and stakeholders to ensure functional parity and identify opportunities for enhancement. Participate in the design of a hybrid architecture that … Skills & Experience 5+ years of experience in .NET/C# development, with a strong focus on backend services and data access layers. Proven experience in migrating legacy systems, especially from Oracle to PostgreSQL or similar. Strong understanding of PL/SQL and experience translating stored procedures into application logic. Familiarity with PostgreSQL, including performance tuning and SQL … dialect differences. Experience working in hybrid environments where legacy and modern systems coexist. Comfortable using AI tools (e.g., GitHub Copilot, ChatGPT, code translators) to assist in development and migration tasks. Solid understanding of software architecture, design patterns, and integration strategies. Excellent communication skills and ability to work collaboratively in a cross-functional team. Desirable Skills Experience with More ❯

testing strategies to ensure parity and quality. Assist in managing a hybrid Oracle/.NET environment during phased rollout. Contribute to BAU operations and the stability of the legacy system while migration activities are underway. Required Skills & Experience 5+ years of experience developing in Oracle PL/SQL, including deep knowledge of stored procedures, triggers, and packages. Proven … to work collaboratively in a cross-functional team environment. Strong problem-solving ability and attention to technical detail. Excellent communication skills, with the ability to document and explain complex systems clearly. Desirable Skills Experience working with legacy PHP systems and their integration with Oracle. Exposure to AI-assisted development tools for code analysis and migration. Familiarity More ❯

tools to accelerate and enhance the migration process, and we're looking for developers who are excited by the opportunity to work at the intersection of legacy systems, modern development, and AI-assisted engineering. Key Responsibilities Collaborate with the existing team to re-engineer Oracle PL/SQL stored procedures into C# services. Design and implement .NET … based components that integrate with both legacy PHP systems and new PostgreSQL databases. Work closely with business analysts and stakeholders to ensure functional parity and identify opportunities for enhancement. Participate in the design of a hybrid architecture that supports phased migration. Use AI-assisted tools to analyse, translate, and optimize legacy code. Support BAU operations … Skills & Experience: 5+ years of experience in .NET/C# development, with a strong focus on backend services and data access layers. Proven experience in migrating legacy systems, especially from Oracle to PostgreSQL or similar. Strong understanding of PL/SQL and experience translating stored procedures into application logic. Familiarity with PostgreSQL, including performance tuning and SQL More ❯

Senior .NET/C# Developer Oracle to PostgreSQL Migration: Our client is embarking on a strategic transformation of a legacy enterprise platform, rebuilding a … long-standing PHP and Oracle-based system into a .NET (C#) and PostgreSQL architecture. Seeking talented developers who are excited to work at the intersection of legacy systems, modern architecture and cutting-edge development tooling. Your Responsibilities: Re-engineer Oracle PL/SQL logic into performant and maintainable C# services. Design and build .NET components that interact … strategies and support comprehensive documentation efforts. What You'll Bring: Experience developing in .NET/C#, particularly in backend and data access layers. Proven success migrating legacy systems, especially from Oracle to PostgreSQL or similar. Strong working knowledge of Oracle PL/SQL and the ability to translate procedural logic into C#. Solid experience with PostgreSQL, including More ❯

platform. Design, develop, and maintain critical software components using Java , Spring Boot , and Spring Cloud in a Microservices architecture. Build and enhance RESTful APIs that integrate seamlessly with other systems and services. Work with cloud infrastructure, primarily AWS , to deploy and support applications in production environments. Collaborate with cross-functional teams to ensure the delivery of high-quality software … retrocession. Exposure to containerization tools such as Docker or Kubernetes . Relevant certifications in Java development, AWS, or DevOps tools are a plus. Experience with cloud modernisation and legacy system migration. What We Can Offer You: Competitive Compensation & Pension Scheme: Rewarding your expertise while helping secure your financial future. Comprehensive Benefits Package: Including DXC Select , Perks at Work … purchase IT or other equipment on our behalf.More information on employment scams is available here . About Us DXC Technology (NYSE: DXC) helps global companies run their mission-critical systems and operations while modernizing IT, optimizing data architectures, and ensuring security and scalability across public, private and hybrid clouds. The world's largest companies and public sector organizations trust More ❯

65k Our client an industry leading private sector business located in Wiltshire is looking for a full stack .Net developer. Key Roles Participate in migration of legacy systems built in C#, VB.NET, Angular/TypeScript, using MySQL, PostgreSQL, and SQL Server technologies. Maintaining applications, ensuring reliability, maintainability, and evolution. Act as a liaison between the development team … Angular, TypeScript, JavaScript, HTML, CSS. SQL Server, MySQL, and PostgreSQL. AWS or Azure. Experience in a client-facing or business-facing technical role. Maintaining and modernising legacy systems, including VB.NET. Communication skills to engage confidently with non-technical stakeholders. Knowledge of Docker, CI/CD pipelines, GitHub, and Azure DevOps Reasonable Adjustments: Respect and equality are core More ❯

services. You will serve as the go-to engineer for: End-to-end data migration architecture ( on-premise to cloud or cloud-to-cloud). Designing scalable and secure systems using AWS services like S3, Lambda, and EKS, EC2, VPC, RDS. Interfacing with both legacy PHP/C# systems and modern .NET cloud-native services. We … needs by focusing on innovation to drive meaningful improvements in animal health. A bit more about the role, you will: Lead migration of data assets from legacy systems to our cloud-native environments using AWS and our bespoke Conversion Framework. Build new and maintain existing bespoke systems. Implement .NET-based microservices with strong observability and integration with … Terraform, and secure service architecture. Coach junior developers and collaborate cross-functionally with product and platform teams. So what are we looking for? Bachelor's in Computer Science , Information Systems, or equivalent experience. 7+ years in software or data engineering, with strong recent experience in cloud data migrations. Proficient with MySQL, OOP, AWS (EC2, S3, Lambda). Experience with More ❯

Migration & Hybrid System Testing Location: Nottingham/London - Hybrid Length: ASAP - Jan 2026 (6 months) Rate: £450 Hours: 9-6pm About the Project We are modernising a legacy enterprise system built on PHP and Oracle, transitioning to a modern .NET (C#) architecture. This transformation involves re-engineering over 240 Oracle stored procedures and decoupling critical business logic … that behaviour, data integrity, and business rules are preserved. The QA Analyst will play a key role in validating the equivalence of the new system, ensuring that both legacy and re-implemented components function correctly in parallel during the transition. Key Responsibilities Develop and execute detailed test plans and test cases across both the legacy Oracle … or iterative development cycles. What We Offer A pivotal QA role in a high-impact digital transformation. The opportunity to work on both legacy and next-generation systems simultaneously. A collaborative, detail-driven team environment focused on delivering quality at scale. Exposure to modern development practices and AI-enhanced tooling. More ❯

Consultant with experience of Oracle Finance Functional Design to support a major ERP transformation. You’ll work on the migration and integration of financial data from legacy systems into Oracle ERP, ensuring robust functional design and data integrity. You’ll act as the bridge between business stakeholders and technical teams, shaping finance data structures that meet operational … and compliance needs. Key Responsibilities: Collaborate with Finance SMEs to gather and document functional requirements Analyse existing legacy data structures and define target Oracle Finance data models Develop functional design specifications for Oracle Finance modules (e.g. GL, AP, AR, FA, CM) Support data mapping, transformation, and reconciliation activities Define and validate data migration rules in line with financial More ❯

Consultant with experience of Oracle Finance Functional Design to support a major ERP transformation. You’ll work on the migration and integration of financial data from legacy systems into Oracle ERP, ensuring robust functional design and data integrity. You’ll act as the bridge between business stakeholders and technical teams, shaping finance data structures that meet operational … and compliance needs. Key Responsibilities: Collaborate with Finance SMEs to gather and document functional requirements Analyse existing legacy data structures and define target Oracle Finance data models Develop functional design specifications for Oracle Finance modules (e.g. GL, AP, AR, FA, CM) Support data mapping, transformation, and reconciliation activities Define and validate data migration rules in line with financial More ❯

driven bank. As an IT professional, you will work closely with our business units. Our technology teams offer an environment with exciting challenges - supporting and developing legacy systems or introducing modern technologies such as AI, machine learning, and highly automated trading applications. Our Technology department, comprising around 300 employees, works largely in an agile manner using a … platform. Monitor market trends in cryptocurrencies and digital assets to identify new business opportunities and relevant regulatory requirements. Who are we looking for? University degree, ideally in business information systems, business administration, economics, or computer science. Strong knowledge of digital assets/cryptocurrencies. Experience in creating user stories and working with IT teams (e.g., agile/scrum). Experience More ❯

currently undergoing a large-scale digital transformation. They are looking for a Full Stack Developer with strong Microsoft and Azure experience to help modernise and integrate legacy systems with cloud-native, scalable applications. This is a hands-on role with involvement across the full software development lifecycle. You'll work in a hybrid environment with a tech … skills with a focus on scalability and security Experience working in agile teams and collaborating with product/design stakeholders Nice to Have Experience with modernising legacy systems Microsoft Azure Developer Certification Familiarity with Durable Functions , Logic Apps, or messaging systems like Event Grid Perks & Benefits 25 days holiday + birthday off Hybrid working Professional development More ❯

services. You will serve as the go-to engineer for: End-to-end data migration architecture ( on-premise to cloud or cloud-to-cloud). Designing scalable and secure systems using AWS services like S3, Lambda, and EKS, EC2, VPC, RDS. Interfacing with both legacy PHP/C# systems and modern .NET cloud-native services. We … needs by focusing on innovation to drive meaningful improvements in animal health. A bit more about the role, you will: Lead migration of data assets from legacy systems to our cloud-native environments using AWS and our bespoke Conversion Framework. Build new and maintain existing bespoke systems. Implement .NET-based microservices with strong observability and integration with … Terraform, and secure service architecture. Coach junior developers and collaborate cross-functionally with product and platform teams. So what are we looking for? Bachelor's in Computer Science , Information Systems, or equivalent experience. 7+ years in software or data engineering, with strong recent experience in cloud data migrations. Proficient with MySQL, OOP, AWS (EC2, S3, Lambda). Experience with More ❯

Veeva Systems is a mission-driven organization and pioneer in industry cloud, helping life sciences companies bring therapies to patients faster. As one of the fastest-growing SaaS companies in history, we surpassed $2B in revenue in our last fiscal year with extensive growth potential ahead. At the heart of Veeva are our values: Do the Right Thing, Customer … can thrive in your ideal environment. Join us in transforming the life sciences industry , committed to making a positive impact on its customers, employees, and communities. The Role Veeva Systems is looking for a Migration Architect who will become a leading member of our EU Professional Services group, providing migration solutions on project teams implementing Veeva Vault R&D … long as you are in close proximity to an airport and are able to meet future travel requirements. Short visits to customer sites in Europe are very likely. Veeva Systems does not anticipate providing sponsorship for employment visa status for this employment position. What You'll Do Provide subject matter expertise on the Vault R&D migration implementation, including More ❯

native applications using C# , .NET Core , and Azure Functions Build and maintain responsive front-end interfaces using React , TypeScript , and modern UI libraries Integrate with internal and third-party systems via REST APIs Contribute to the design and implementation of AI-driven features to enhance automation and user experience Lead on DevOps practices , including CI/CD pipelines, automated … It for You? A flexible hybrid working model with just one day a week in the office The chance to work on greenfield projects and modernise legacy systems A collaborative, supportive team culture with opportunities for career progression Competitive salary, comprehensive benefits, and a strong focus on work-life balance Ready to take the lead on exciting More ❯

markets. Think of yourself as the digital architect transforming complex business requirements into elegant technical solutions! YOUR MISSIONBE THE POWER PLATFORM GURU: Develop sophisticated Power Apps applications for internal systems and business automation Work with stakeholders to capture and translate complex requirements into technical solutions Create seamless integrations with Microsoft ecosystem components BUILD TECHNICAL EXCELLENCE: Establish development standards that … Strong Power Platform development experience with comprehensive knowledge of the ecosystem C# .NET and JavaScript expertise for custom development and integrations HCL Notes/Lotus Notes experience - additional legacy system capabilities Canvas and Model-driven Power Apps knowledge - full low-code understanding would be ideal Database experience with proven track record in SQL Server and Oracle environments Stakeholder … offices Cutting-Edge Technology - Latest Microsoft Power Platform innovations Technical Impact - Drive digital transformation in a prestigious financial services environment Technical Variety - From modern low-code solutions to legacy system support BROADER SCOPE Design database structures and partner with SQL/Oracle database specialists Resolve technical issues and deploy fixes across Windows Server environments Collaborate with Technical Support More ❯

work cross-functionally, delivering data-driven insights that inform strategic decisions and drive performance across the organisation. Reporting to the Head of Sales and working closely with the business systems team, the successful candidate will bring a strong analytical mindset, solid technical skills, and ideally, experience within the purpose-built student accommodation (PBSA) or wider property sector. Key Responsibilities … to refine rental proposals and optimise rent-setting approaches. Monitors KPIs, highlights data anomalies, and recommends appropriate actions. Assists in analysing data during the migration from legacy systems to new property management platforms. Reporting Prepares accommodation schedules based on floor plans, operational data, and stakeholder requirements. Contributes to budgeting, forecasting, and scenario modelling activities using Excel and … property, or hospitality sectors. Understanding of revenue management or dynamic pricing strategies. Proficiency in Python or R for automation or advanced data modelling. Familiarity with CRM or property management systems such as Entrata, StarRez, Salesforce, or Hubspot. Personal Attributes A proactive, self-motivated individual who thrives in a dynamic and fast-paced environment. Trustworthy, dependable, and capable of managing More ❯

collaborative team working across the full Microsoft and Azure technology stack. This is a hands-on role offering the chance to work on both legacy and greenfield systems, contribute to architectural decisions, and support the continuous improvement of development practices. Key responsibilities: Develop and maintain scalable, high-quality software using C#, .NET, and Azure Lead on coding … with Azure services and DevOps tools Understanding of secure coding and software development best practices Desirable experience: Microservices, containers (Docker/Kubernetes) Front-end frameworks such as Vue.js Messaging systems (e.g. Service Bus, Kafka) NoSQL databases, REST APIs, CI/CD pipelines Benefits: 25 days holiday plus bank holidays and additional Christmas leave Flexible 37.5-hour week Hybrid working More ❯

be working on the latest and most cutting edge tech from the outset. If you are an expert in and passionate about designing and configuring Dynamics 365 Business Central systems then look no further! The role: Collaborating with clients to understand their business requirements and translate them into system configurations and customisations within Dynamics 365 Business Central. Designing and … enabling them to effectively utilise Dynamics 365 Business Central and maximise its potential. Performing data migration activities, ensuring the accurate and timely transfer of data from legacy systems to Dynamics 365 Business Central. Developing and maintaining technical documentation, including functional specifications, user guides, and training materials. Identifying opportunities for process improvements and advising clients on best practices More ❯