1 to 25 of 42 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 ❯

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 ❯

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 ❯

Apply: Joining a busy Application Services Development Team, you will be supporting the enhancements and modifications of key Policing applications as well as the migration of legacy systems to new systems and necessary integrations. It's a fascinating role developing and enhancing a Police Forces Applications, (as well as the API's so that they integrate More ❯

translating business needs into data solutions. Process Improvement: Proven track record of streamlining data workflows. Data Quality: Experience in data cleansing and ensuring consistency across systems. Legacy Systems: Familiarity with data extraction from systems like AS400. AI/ML Interest: Exposure to or interest in applying AI/ML in analytics is desirable. Communication: Excellent written 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 ❯

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 ❯

Are you passionate about building robust, high-performance data platforms? We're seeking a Data Engineer to join a growing technology team, driving the modernization of legacy systems and the development of scalable, cloud-native solutions. This is a high-visibility role with the opportunity to make a direct impact across the business. Why this role? Work More ❯

and maintaining scalable data pipelines, resolving data quality issues, and collaborating closely with analysts, engineers, and stakeholders. If you thrive in a fast-paced environment and enjoy optimising data systems, this could be a great match. Key Responsibilities: Design, develop, and maintain scalable data pipelines for both operational and analytical needs Ensure high data integrity through best practices in … validation and quality assurance Investigate and resolve data issues, identifying root causes and implementing sustainable solutions Lead and support data migration projects, modernising legacy systems using cloud technologies Collaborate with cross-functional teams including analysts, data scientists, and engineers to deliver impactful data solutions Continuously improve internal tools, workflows, and processes to increase data efficiency and reliability … Hands-on experience with Kafka for stream processing and AWS (particularly Redshift and S3) Skilled in implementing testing and validation strategies to ensure data quality Familiar with version control systems such as Git and working in Agile, collaborative environments Self-driven with strong multitasking skills and a collaborative mindset More ❯

product owners, and external partners to shape scalable data solutions Manage and mentor a high-performing team of Data Engineers Support integration initiatives across cloud and legacy systems Represent data architecture in governance forums and strategic planning What You’ll Bring Proven experience designing and architecting complex, high-volume data systems Strong hands-on knowledge of … collaborative culture This is a rare opportunity to shape the data architecture of a mission-driven organisation with global reach. If you're passionate about data, leadership, and building systems that scale—this is your next move. More ❯

central/local government, healthcare, education, defence, etc. Familiarity with public sector regulations, compliance (e.g., GDPR, FOIA), and procurement processes. Knowledge of common public sector challenges: legacy systems, citizen engagement, case management, grants, licensing. Proficiency in key Salesforce architecture areas, particularly Service Cloud, Experience Cloud, and Public Sector Cloud. Public Sector Solutions Accredited Professional and Service Cloud More ❯

GIS platform (ArcGIS Enterprise, ArcGIS Online, etc.). Define system architecture, data flows, and integration points with enterprise systems. Lead the migration and consolidation of spatial datasets from legacy systems. Spatial Analysis & Planning Develop spatial models for energy planning, environmental impact assessments, and economic forecasting. Integrate community feedback and preferences into spatial decision-making tools. Create interactive dashboards More ❯

early-career architects from a consulting background looking to step into a broader architectural remit. You will play a key role in shaping cloud strategies, modernising legacy systems, and enabling advanced technologies such as generative AI, data analytics, and cloud-native applications. Key Responsibilities Design and implement scalable, secure, and high-performing AWS solutions. Lead cloud migration More ❯

Provide support to interoperability Information management and sharing between legacy, current and future capabilities. Work with LC2, OpNET L3/4 teams and other legacy systems to ensure interoperability solutions have IM support and can be implemented across Navy FLC interests. Develop and administer the Navy FLC OpNET HUB, create and collapse site collections as … information management MOD security clearance or be willing to undergo Security Clearance to DV level Desirable Skills Some knowledge of industry standards - BRd7747 Involvement in an iHub Communications information systems (Royal Navy) Providing support with SharePoint Background knowledge of either naval or maritime would be advantageous Excellent communication skills Able to follow the laid-down process Computer literate and More ❯

Provide support to interoperability Information management and sharing between legacy, current and future capabilities. Work with LC2, OpNET L3/4 teams and other legacy systems to ensure interoperability solutions have IM support and can be implemented across Navy FLC interests. Develop and administer the Navy FLC OpNET HUB, create and collapse site collections as … information management MOD security clearance or be willing to undergo Security Clearance to DV level Desirable Skills Some knowledge of industry standards - BRd7747 Involvement in an iHub Communications information systems (Royal Navy) Providing support with SharePoint Background knowledge of either naval or maritime would be advantageous Excellent communication skills Able to follow the laid-down process Computer literate and More ❯

IT systems. This role will offer you a wide variety of technical and business challenges as new products, regulations, and market practices emerge. You’ll work across both legacy and modern platforms, with a strong focus on training and development to get you up to speed quickly. From day one, you’ll contribute to real-world projects and … ownership of tasks in a small team setting Why Join Us? Join a stable, permanent position with strong growth potential Gain experience in both modern and legacy systems Be part of a high-impact, agile team where your contributions matter Receive hands-on technical and business training Work in the fast-paced and ever-evolving world of … financial trading systems Ready to Start Your Career with Us? This is a permanent, full-time position ideal for a graduate looking to launch their career in a collaborative and technically rich environment. Send your CV and a brief cover letter and tell us why you're the right fit for the team. Due to the volume of applications More ❯

against agreed outcomes, budget, and timelines. Oversee project managers and PMO resources, providing leadership, mentoring, and line management where required. Drive technical strategy and optimisation, including licence rationalisation, legacy estate transformation, and fit-for-purpose design solutions. Lead the introduction and adoption of AI technologies and Copilot, including governance, policy, and business integration. Ensure cyber security, compliance, and … Intune, Entra ID, Azure, EUC, VMware, and SaaS solutions. Proven experience introducing and landing AI solutions within a business context. Strong architectural perspective, capable of challenging legacy systems and driving optimisation. Excellent stakeholder management and communication skills, with credibility and gravitas at senior levels. Track record of programme delivery in regulated or risk-averse environments, ideally with More ❯

at senior consultant or manager level. You will work closely with cross-functional teams and high-level stakeholders, supporting large-scale transformation programmes focused on modernising legacy systems and enhancing digital payment capabilities. Responsibilities Collaborate with business and technical stakeholders to elicit, document, and validate requirements across complex payments and banking platforms Translate business objectives and user … and timely deliverables Requirements Minimum of 4 years proven experience as a Technical Business Analyst within the UK banking and payments sector Strong understanding of payment platforms, schemes, and systems (e.g. Faster Payments, BACS, CHAPS, SEPA) Hands-on experience in payments transformation or modernisation initiatives Excellent communication skills, with the ability to effectively interface between business users and technical More ❯

play a key role in shaping the future of digital solutions in a professional services setting? This Enterprise Architect opportunity will see you influencing strategy, modernising Legacy systems, and designing solutions that have real impact, both internally and for clients. Role: Enterprise Architect Location: East Anglia (Ipswich, Norwich, Cambridge or Chelmsford) Hybrid pattern: 3 days per week … You'll also enjoy the freedom to shape architectural strategy and directly influence how technology enables transformation. What you'll be doing Designing innovative, scalable technology solutions that modernise systems, reduce technical debt and enable new services Setting and aligning architecture with business strategy and long-term vision Driving integration of cloud platforms (Microsoft Azure), data management, and modern More ❯

or Brighton Join a leading international eCommerce organization committed to driving innovation through AI. We are looking for a Senior Frontend Developer to lead the modernization of our core systems, utilizing React and JavaScript to enhance performance and efficiency. Your expertise will be key in transforming our technology stack and implementing AI-powered solutions. About the Role: Play a … pivotal role in transforming our technology stack and driving the adoption of AI-powered tools to enhance development workflows. Modernize critical systems and implement intelligent solutions that support business growth and efficiency. Key Responsibilities: Lead the migration of legacy systems to a modern tech stack using React, JavaScript, and cloud platforms. Design and implement AI-driven More ❯

Collaborate with senior technical stakeholders to define AI strategy and roadmaps for digital transformation initiatives Ensure AI solutions integrate effectively with existing government technology infrastructure and legacy systems Design scalable, cloud-first AI architectures following government security and data protection standards Lead the selection and technical design of appropriate AI technologies, platforms, and tools Develop documentation and … of machine learning frameworks, cloud platforms (AWS, Azure, GCP), and MLOps(machine learning operations) practices. Deep knowledge about design and implementation of secure integrations between AI solutions and legacy enterprise software, whilst ensuring compliance with government-level security requirements, implementing single sign-on (SSO) authentication protocols, and maintaining appropriate access controls for OFFICIAL and OFFICIAL-SENSITIVE information handling. … government technology standards and security frameworks Working knowledge about appropriate Data Ethics Frameworks for AI initiatives, ensuring responsible and transparent AI deployment Understanding of the modern and current AI systems and their lifecycle. Experience working in regulated environments with strict security and compliance requirements Experience of working at pace, on cutting-edge technology and not afraid to take on More ❯

Backend Engineer - Scale Systems with Real Impact Tired of tinkering at the edges? Want to actually shape the backbone of a platform that's transforming how the world's biggest enterprises run their tech? This is one of those rare roles where you get in early, build the foundations, and watch your work scale across global businesses. We're … AI-driven platform is already saving household-name customers millions in IT costs, shaving months off ERP project timelines, and making sense of the mess that legacy systems leave behind. SAP is just the beginning - they're building a whole new category of Enterprise System Intelligence. The Role As one of the first Backend Engineers focused on … platform and infrastructure, you'll: Build core systems capable of handling tens of millions of lines of code and large-scale LLM workloads. Own big pieces of the architecture - from job orchestration to APIs, infra, and developer tooling. Make product teams fly by building reliable, well-designed infrastructure that scales without slowing anyone down. Tame complex LLM infrastructure (real More ❯

environment Provide technical direction and architectural oversight for complex projects Stay hands-on with coding, problem-solving, and technical delivery Shape the technology roadmap, working across legacy systems and cutting-edge AI projects Drive technical standards and ensure delivery against ambitious targets Work closely with leadership to translate business needs into technical solutions Technical Stack & Experience: Strong … PHP experience (Laravel framework) Database expertise: MySQL, Elasticsearch Front-end knowledge: Vue.js or similar modern frameworks Understanding of DevOps practices (GitHub, Terraform advantageous) AI systems experience is a plus Previous experience in scaling tech companies or start-ups highly valuable What's On Offer: Competitive base salary equity Remote-first culture 1 day a week in the London office … Opportunity to join at a pivotal scaling moment with rapid career progression potential Work on diverse projects from legacy optimisation to cutting-edge AI deployment This is your chance to step into a leadership role where you can directly influence both technology direction and team culture at one of the UK's most exciting PropTech growth stories. The More ❯