1 to 25 of 78 Permanent Legacy Systems Jobs in the South East

mission-critical data migration projects. You'll be part of an expert unit supporting onboarding for a new cloud platform - working directly with raw datasets from legacy systems and transforming them into future-ready digital infrastructure. What You'll Be Doing: Leading data migration and ETL projects for UK public sector software implementations Analysing and mapping legacy database schemas (Oracle, SQL Server, Postgres) Extracting raw data from legacy systems, often with limited documentation Writing and executing SQL scripts and/or using ETL tools to build data pipelines Creating transformation logic and performing reconciliation and validation Working closely with customers and internal teams to troubleshoot and ensure smooth migrations This role is … Problem-solving mindset when facing incomplete or messy data A consulting approach - proactive, collaborative, and detail-driven Nice to Have: Experience with UK Local Government datasets or public sector systems Familiarity with cloud platforms (Azure, AWS, GCP) Knowledge of spatial data tools (ArcGIS, QGIS) Experience with document management systems and data validation processes What's in it for More ❯

Systems Engineering Lead Location: Farnborough, with flexibility to work from home dependent on business demands The Role: We are in search of a Systems Engineering Lead for our Leidos engineering capability. The successful Systems Engineer will have a full understanding of the principles of systems engineering, will have prior experience as a Systems Engineer on … a major programme involving accepting and integrating deliveries from suppliers. As a Systems Engineer in Leidos, you will be immersed in one of our key programmes transformation from legacy systems to cloud. On behalf of our central government customer, you will have direct impact on the current and future iterations of one of our most important … pieces of critical national infrastructure. If this sounds like the kind of environment where you can thrive, keep reading! Using your experience in Systems Engineering, you will be responsible for working with customers and suppliers to execute/lead Systems Engineering activities across the full lifecycle. What Youll Be Doing: Leader of a high-performing team to deliver More ❯

Senior AI Developer £80,000 + bonus + benefits International eCommerce organisation is looking for a Senior AI Developer to lead the modernization of core systems using AI to improve performance and efficiency. We need a highly skilled Lead Developer with proven experience migrating legacy systems and implementing AI-powered solutions. Experience with modern languages and … frameworks is a plus. About the Role: Play a pivotal role in transforming technology stack and driving the adoption of AI-powered tools to enhance development workflows. Modernising critical systems and implement intelligent solutions that support business growth. Key Responsibilities: Lead the migration of legacy systems to a modern tech stack (cloud platforms, APIs) Design and … teams to redesign and improve core business applications Mentor junior developers, fostering a culture of continuous learning and innovation Essential Skills: 5+ years’ software development experience, including significant legacy system modernization Relational database expertise (e.g., Microsoft SQL Server) Familiarity with REST APIs and cloud infrastructure Hands-on experience with AI-based developer tools (e.g., GitHub Copilot, ChatGPT, Tabnine More ❯

internal tools, customer-facing applications, integrating with APIs, and databases. You will be working across both Delphi and C# on CRM product development and support, bridging legacy systems with modern platforms, ensuring seamless integration and evolution of Procodes software ecosystem. You will be responsible for ensuring that the software features, changes and fixes implemented by the team … during feature sprints are functionally correct and stable before being deployed. Youll be creating and updating current, as well as modernising legacy technology and joining an important team within Procode. You will also be supporting the ongoing development … of other software engineers within the team. Who are we looking for? Your in-depth knowledge of Delphi & C# and writing APIs, willbe key when bridging legacy systems with modern platforms, ensuring seamless integration and evolution of Procodes software ecosystem. Your experience working in an agile environment will allow you to integrate seamlessly into the ways of More ❯

internal tools, customer-facing applications, integrating with APIs, and databases. You will be working across both Delphi and C# on CRM product development and support, bridging legacy systems with modern platforms, ensuring seamless integration and evolution of Procodes software ecosystem. You will be responsible for ensuring that the software features, changes and fixes implemented by the team … during feature sprints are functionally correct and stable before being deployed. Youll be creating and updating current, as well as modernising legacy technology and joining an important team within Procode. You will also be supporting the ongoing development … of other software engineers within the team. Who are we looking for? Your in-depth knowledge of Delphi & C# and writing APIs, willbe key when bridging legacy systems with modern platforms, ensuring seamless integration and evolution of Procodes software ecosystem. Your experience working in an agile environment will allow you to integrate seamlessly into the ways of More ❯

internal tools, customer-facing applications, integrating with APIs, and databases. You will be working across both Delphi and C# on CRM product development and support , bridging legacy systems with modern platforms, ensuring seamless integration and evolution of Procodes software ecosystem. You will be responsible for ensuring that the software features, changes and fixes implemented by the team … during feature sprints are functionally correct and stable before being deployed. Youll be creating and updating current, as well as modernising legacy technology and joining an important team within Procode. You will also be supporting the ongoing development … of other software engineers within the team. Who are we looking for ? Your in-depth knowledge of Delphi & C# and writing APIs , willbe key when bridging legacy systems with modern platforms, ensuring seamless integration and evolution of Procodes software ecosystem. Your experience working in an agile environment will allow you to integrate seamlessly into the ways of More ❯

partner for a government agency's transformation programme. They are looking for a Lead Technical Architect to join the a high-profile initiative aimed at modernising legacy systems and improving data validation across the client's business gateway. This is a fully remote role, working within a blended agile team of consultancy and end client staff. You … To be considered, you'll need: Strong background in technical architecture within large-scale digital programmes Deep understanding of API Gateway design and enhancement Experience modernising legacy systems and migrating to cloud-native platforms Solid grasp of AWS (API Gateway, Lambda, S3, VPC) Familiarity with Java, DB2, relational databases, and network concepts Desirable experience includes: OpenAPI schemas More ❯

someone who has good programming skills Microsoft programming languages. The team uses cutting edge technology, but you will ideally be versed with a wide variety of legacy systems and migrating away from these to new cutting-edge technology solutions. These positions report to the Integration Lead and Architect and you will be working alongside a team of … . Responsibilities: Design and support all integration processes including migrations to and from new businesses as well as within internal applications and databases. Migrations away from legacy systems into new applications Review, support, feedback and size requirements produced by the Analysis team. Manage your delivery commitments within the relevant sprints to ensure timely and quality delivery of More ❯

The Opportunity We're partnering with a leading bank on a major transformation programme: the build and migration of a proprietary lending platform that will replace legacy systems and sit at the heart of their future banking operations. This is a high-profile programme where you'll work closely with senior leadership, delivering change that impacts core … leadership, providing visibility, assurance, and strategic direction. What We're Looking For Proven experience as a Programme Manager in banking or financial services . Strong knowledge of core banking systems ; lending platform exposure is highly desirable. Excellent communication and stakeholder management skills - able to influence at executive level. Track record in governance, risk management, and regulatory programmes . Ability … to lead matrixed teams and work across multiple business areas. Comfortable in environments moving from legacy systems to proprietary platforms . RSG Plc is acting as an Employment Agency in relation to this vacancy. More ❯

problems. About the Role: You will spearhead the development and enhancement of enterprise-level reporting capabilities, leading the migration and integration of reporting frameworks from various legacy systems into Oracle Fusion. This role demands a commitment to ensuring data accuracy, performance, and business alignment, delivering reliable, insightful, and scalable reporting solutions in close collaboration with stakeholders. Key … Responsibilities: Lead the development and enhancement of enterprise-level reporting capabilities within Oracle Fusion. Lead the migration and integration of reporting frameworks from legacy systems into Oracle Fusion. Ensure data accuracy, performance, and business alignment of all reporting solutions. Collaborate closely with stakeholders to deliver reliable, insightful, and scalable reporting solutions. Essential Skills & Experience: Deep expertise in More ❯

Business Systems Analyst The Business Systems Analyst will play a pivotal role in shaping and optimising ESP’s use of Business Applications, including the Microsoft Dynamics 365 platform and supporting business transformation across commercial, operational, and customer-facing functions. This role will be an interface between stakeholders and technical teams, ensuring that business needs and objectives are well … of the business. The successful candidate will lead requirements gathering, process mapping and solution design, and support delivery activities. They will contribute to the development of a robust Business Systems ecosystem and its integration with the wider utilities industry. They will support the business in investigating problems and identifying appropriate solutions Key Responsibilities Analyse, map and maintain current and … and document business and system requirements, both functional and non-functional Translate business needs into functional and technical requirements and persona-based user stories for Dynamics 365 and other systems as needed Work with technical and business teams to investigate and resolve functional problems and ensure the timely resolution of systems issues Contribute to the planning, sourcing and More ❯

Business Systems Analyst The Business Systems Analyst will play a pivotal role in shaping and optimising ESP’s use of Business Applications, including the Microsoft Dynamics 365 platform and supporting business transformation across commercial, operational, and customer-facing functions. This role will be an interface between stakeholders and technical teams, ensuring that business needs and objectives are well … of the business. The successful candidate will lead requirements gathering, process mapping and solution design, and support delivery activities. They will contribute to the development of a robust Business Systems ecosystem and its integration with the wider utilities industry. They will support the business in investigating problems and identifying appropriate solutions Key Responsibilities Analyse, map and maintain current and … and document business and system requirements, both functional and non-functional Translate business needs into functional and technical requirements and persona-based user stories for Dynamics 365 and other systems as needed Work with technical and business teams to investigate and resolve functional problems and ensure the timely resolution of systems issues Contribute to the planning, sourcing and More ❯

the success of our retail products. You are also responsible for ensuring all work complies with relevant security and data protection standards, keeping user data safe and protecting our systems against vulnerabilities. Key Accountabilities: Contribute to the data analysis efforts to support Swan's Products modelling and decision-making processes. Develop and maintain complex SQL queries and scripts using … of OLAP concepts and data warehousing principles. Familiarity with Python for data manipulation and scripting. Strong analytical and problem-solving skills. Experience in agile environments and working with ticketing systems (e.g., Jira). Note: Our tech stack may vary across projects and teams. This list is a guide — we evolve our tooling to better develop and deliver our products … Developers and Analysts must also be ready to maintain and enhance legacy systems that may rely on older technologies or deprecated frameworks as part of our product portfolio. Nice to have: Experience with cloud platforms such as AWS, Azure, or Google Cloud. Understanding of data governance and security best practices. Proficiency with Git and modern development workflows More ❯

seasoned AWS Data Engineer to join our team and contribute to the development of scalable, secure, and high-performance data solutions. This role involves modernizing mainframe legacy systems, building robust data pipelines, and enabling advanced analytics using AWS-native technologies. You’ll collaborate with cross-functional teams and play a key role in shaping our data strategy. … using AWS S3, with strong understanding of data lifecycle, access control, and performance optimization. Hands-on experience migrating data from Mainframes to AWS, including transformation and validation of legacy formats. Proficiency in reading and processing VSAM data using Copybooks and the Cobrix library. Experience implementing data retention and archival strategies in cloud environments. Strong understanding and practical implementation … documentation skills to clearly articulate data flows, architecture decisions, and technical findings. Experience with pair programming, conducting code reviews, and mentoring team members. Proven ability to reconcile data across systems and ensure data quality and integrity. Experience with data cataloging and metadata management using tools like AWS Glue Data Catalog. Demonstrated self-sufficiency in exploring new tools, troubleshooting issues More ❯

seasoned AWS Data Engineer to join our team and contribute to the development of scalable, secure, and high-performance data solutions. This role involves modernizing mainframe legacy systems, building robust data pipelines, and enabling advanced analytics using AWS-native technologies. You’ll collaborate with cross-functional teams and play a key role in shaping our data strategy. … using AWS S3, with strong understanding of data lifecycle, access control, and performance optimization. Hands-on experience migrating data from Mainframes to AWS, including transformation and validation of legacy formats. Proficiency in reading and processing VSAM data using Copybooks and the Cobrix library. Experience implementing data retention and archival strategies in cloud environments. Strong understanding and practical implementation … documentation skills to clearly articulate data flows, architecture decisions, and technical findings. Experience with pair programming, conducting code reviews, and mentoring team members. Proven ability to reconcile data across systems and ensure data quality and integrity. Experience with data cataloging and metadata management using tools like AWS Glue Data Catalog. Demonstrated self-sufficiency in exploring new tools, troubleshooting issues More ❯

seasoned AWS Data Engineer to join our team and contribute to the development of scalable, secure, and high-performance data solutions. This role involves modernizing mainframe legacy systems, building robust data pipelines, and enabling advanced analytics using AWS-native technologies. You’ll collaborate with cross-functional teams and play a key role in shaping our data strategy. … using AWS S3, with strong understanding of data lifecycle, access control, and performance optimization. Hands-on experience migrating data from Mainframes to AWS, including transformation and validation of legacy formats. Proficiency in reading and processing VSAM data using Copybooks and the Cobrix library. Experience implementing data retention and archival strategies in cloud environments. Strong understanding and practical implementation … documentation skills to clearly articulate data flows, architecture decisions, and technical findings. Experience with pair programming, conducting code reviews, and mentoring team members. Proven ability to reconcile data across systems and ensure data quality and integrity. Experience with data cataloging and metadata management using tools like AWS Glue Data Catalog. Demonstrated self-sufficiency in exploring new tools, troubleshooting issues More ❯

Key responsibilities of the role include: Designing and supporting the configuration of SAP SuccessFactors Recruiting and Onboarding modules Leading on cleansing and validating applicant data from legacy systems, in addition to supporting data migration activities Engaging hiring managers and teams to develop user-focused workflows and dashboards Delivering UAT planning, test scripts, issue tracking and change documentation … analysis, and user readiness Contribute to ongoing change-related activities to ensure deliverables reflect operational realities and user needs About you You’ll bring a solid understanding of HR systems or ATS platforms, with a strong understanding of how recruitment operates in a large, complex organisation. Your ability to bridge technical detail and human experience will be key to … managing technical details while also translating outcomes into user benefits. To be considered, please include the below details in your application: Experience implementing or maintaining applicant tracking or onboarding systems Familiarity with recruitment compliance including equalities monitoring and GDPR Strong analytical and problem solving skills with attention to detail Excellent stakeholder engagement skills, particularly with hiring managers Ability to More ❯

features are developed using Microsoft Dynamics 365. Customise Dynamics 365 CRM entities, forms, views, and so on. Design and implement seamless integrations between Dynamics 365 CRM and other enterprise systems, including ERP, third-party applications, and cloud services. Plan and execute data migration strategies from legacy systems to Dynamics 365 CRM. Provide ongoing support, troubleshooting, and More ❯

features are developed using Microsoft Dynamics 365. Customise Dynamics 365 CRM entities, forms, views, and so on. Design and implement seamless integrations between Dynamics 365 CRM and other enterprise systems, including ERP, third-party applications, and cloud services. Plan and execute data migration strategies from legacy systems to Dynamics 365 CRM. Provide ongoing support, troubleshooting, and More ❯

S/4HANA migration projects. You will work closely with functional and technical teams to ensure the successful extraction, transformation, and loading (ETL) of data from legacy systems into SAP environments. This role will focus on delivering high-quality data migration solutions using SAP Migration Cockpit, SAP Data Services (BODS), and other SAP data management tools. Key More ❯

of defined work packages contributing to BI projects and roll outs and support the business in creating and maintaining reports.Snowflake Migration - help towards the migration from on prem legacy system to Snowflake DWH. My client is providing access to; Remote Working,28 Days Holiday, Plus Bank HolidayPrivate Medical HealthPension SchemeAnd More... For this role, they are looking for More ❯

our most pressing data problems including GenAI applications Integrate data from a variety of sources, assuring that they adhere to data quality and technical standards. Migrating legacy systems into a modern scalable platform Creating frameworks and processes for data pipelines across the data and analytics platform Improve data engineering processes and roll these out across our team More ❯

provide technical guidance and oversight of customisations, including plugins, workflows, Power Automate flows, and JavaScript, ensuring efficient, reusable, and well-documented code.* Integrate D365 CE with other applications and systems using tools like Azure Logic Apps, Power Automate, and custom APIs.* Oversee the Dynamics 365 environment to enable the successful delivery of their Digital Transformation.* Manage and control D365 … and maintenance for D365 CE applications, troubleshoot issues, and implement fixes and enhancements.* Assist in data migration tasks, ensuring accurate and secure transfer of data from legacy systems to D365 CE* Collaborate with cross-functional teams, including business analysts, project managers, and other developers, to deliver high-quality solutions.* Stay updated with the latest D365 CE features More ❯

on a 6 month fixed term basis. This is an exciting opportunity to lead complex projects that will shape the future of our business by deprecating legacy systems, onboarding new business, and supporting the evolution of our core platforms. As Project Manager, you’ll work closely with development, infrastructure, QA, and product teams to deliver on critical … team. What We’re Looking For 5+ years’ experience in a project management role, with a proven record of managing complex software projects. Degree in Management or IT/Systems-related discipline (preferred). Knowledge of infrastructure networking topology and development lifecycles. Exposure to Microsoft Dynamics 365 for Finance & Operations (advantageous). Aviation supply chain experience (beneficial but not More ❯

on a 6 month fixed term basis. This is an exciting opportunity to lead complex projects that will shape the future of our business by deprecating legacy systems, onboarding new business, and supporting the evolution of our core platforms. As Project Manager, you’ll work closely with development, infrastructure, QA, and product teams to deliver on critical … team. What We’re Looking For 5+ years’ experience in a project management role, with a proven record of managing complex software projects. Degree in Management or IT/Systems-related discipline (preferred). Knowledge of infrastructure networking topology and development lifecycles. Exposure to Microsoft Dynamics 365 for Finance & Operations (advantageous). Aviation supply chain experience (beneficial but not More ❯