1 to 25 of 149 Legacy Systems Jobs in the South East

Governance: Develop, maintain, and realize architecture standards and principles that guide technology decisions across the organization. Technology Oversight: Provide strategic oversight of Awin’s systems, platforms, and infrastructure, including legacy systems and cloud-native environments. Integration Leadership: Lead architecture reviews and integration efforts across domains such … experts to ensure architectural consistency and scalability. Strategic Planning: Contribute to long-term planning for platform evolution, including the sunsetting of legacy systems and migration to unified platforms. Mentorship & Enablement: Support solution architects and engineering teams by providing architectural guidance and fostering a culture of technical excellence. ...

direct impact on millions of lives? You'll take the lead in defining the technical future, steering the transition from legacy PHP systems to a modern, scalable platform built with Laravel, InertiaJS, and Vue 3. With solid groundwork already in place, you'll have real freedom … next generation of our products. This role would suit an experienced PHP developer who's ready to step beyond maintaining legacy systems and help build something modern, scalable, and genuinely impactful. If you're excited by the idea of using your technical skills to support a Tech ...

sole complex and technical challenges. You'll take the lead in defining the technical future, steering the transition from legacy PHP systems to a modern, scalable platform built with Laravel, InertiaJS, and Vue 3. With solid groundwork already in place, you'll have real freedom to shape … next generation of our products. This role would suit an experienced PHP developer who's ready to step beyond maintaining legacy systems and help build something modern, scalable, and genuinely impactful. If you're excited by the idea of using your technical skills to support a Tech ...

fast-growing, acquisition-led organisation. Your core mission will be to migrate operational (CRM) and in time, finance data from multiple legacy systems into Microsoft Dynamics, repeatedly, reliably, and under pressure. You will work across: Bespoke, undocumented, and at times, home-grown systems SaaS platforms (e.g. … with minimal hand-holding, in a demanding BAU + project environment. What Youll Be Doing For each acquired business, analyse legacy source systems (often undocumented) Understand and interrogate data models at source and target (D365/Dynamics) Perform source-to-target mapping Extract, cleanse, transform, and load ...

Join Our Team as a Finance Systems Lead at Foster + Partners Foster + Partners is one of the world’s most innovative and respected studios for sustainable architecture, urbanism, engineering, and design. Founded by Norman Foster in 1967, we’ve grown into a global community of over … expand, we’re implementing a new ERP platform to support the next chapter of our growth — and we’re looking for a skilled Finance Systems Lead to help shape that future. About the role As our Finance Systems Lead , you will own and optimise F+P’s financial systems ...

autonomy over where you work from? You'll take the lead in defining the technical future, steering the transition from legacy PHP systems to a modern, scalable platform built with Laravel, InertiaJS, and Vue 3. With solid groundwork already in place, you'll have real freedom … next generation of our products. This role would suit an experienced Lead PHP developer who's ready to step beyond maintaining legacy systems and help build something modern, scalable, and genuinely impactful. If you're excited by the idea of using your technical skills to support ...

will be asked to shape epics and tickets yourself - always aligned with the CTO's direction Build new features, fix problems in old systems and keep everything running fast and reliable Work on a mix of greenfield projects and legacy systems - both matter and both need … your skills without arrogance Confident resilient pragmatic and results-driven Clear judgement and able to balance speed with quality Experienced in building new systems and fixing legacy Keeps calm under pressure and still delivers Raises the bar for those around them by example Working Style Execute ...

risks, and collaborate closely with technical and business stakeholders. Key Responsibilities Design, develop, and execute ETL processes to migrate data from legacy systems to target platforms. Write and optimise complex SQL queries (preferably MySQL) to support data extraction, transformation, and validation. Apply the full data quality framework … resolve data-related issues promptly. Ensure migrations comply with data governance, security, and regulatory requirements. Work with case management software and related systems to understand data structures and workflows. Qualifications Essential: Proven experience in public sector large-scale data migration projects. Strong SQL development skills within MySQL environments. Solid ...

risks, and collaborate closely with technical and business stakeholders. Key Responsibilities Design, develop, and execute ETL processes to migrate data from legacy systems to target platforms. Write and optimise complex SQL queries (preferably MySQL) to support data extraction, transformation, and validation. Apply the full data quality framework … resolve data-related issues promptly. Ensure migrations comply with data governance, security, and regulatory requirements. Work with case management software and related systems to understand data structures and workflows. Qualifications Essential: Proven experience in public sector large-scale data migration projects. Strong SQL development skills within MySQL environments. Solid ...

risks, and collaborate closely with technical and business stakeholders. Key Responsibilities Design, develop, and execute ETL processes to migrate data from legacy systems to target platforms. Write and optimise complex SQL queries (preferably MySQL) to support data extraction, transformation, and validation. Apply the full data quality framework … resolve data-related issues promptly. Ensure migrations comply with data governance, security, and regulatory requirements. Work with case management software and related systems to understand data structures and workflows. Qualifications Essential: Proven experience in public sector large-scale data migration projects. Strong SQL development skills within MySQL environments. Solid ...

risks, and collaborate closely with technical and business stakeholders. Key Responsibilities Design, develop, and execute ETL processes to migrate data from legacy systems to target platforms. Write and optimise complex SQL queries (preferably MySQL) to support data extraction, transformation, and validation. Apply the full data quality framework … resolve data-related issues promptly. Ensure migrations comply with data governance, security, and regulatory requirements. Work with case management software and related systems to understand data structures and workflows. Qualifications Essential: Proven experience in public sector large-scale data migration projects. Strong SQL development skills within MySQL environments. Solid ...

risks, and collaborate closely with technical and business stakeholders. Key Responsibilities Design, develop, and execute ETL processes to migrate data from legacy systems to target platforms. Write and optimise complex SQL queries (preferably MySQL) to support data extraction, transformation, and validation. Apply the full data quality framework … resolve data-related issues promptly. Ensure migrations comply with data governance, security, and regulatory requirements. Work with case management software and related systems to understand data structures and workflows. Qualifications Essential: Proven experience in public sector large-scale data migration projects. Strong SQL development skills within MySQL environments. Solid ...

risks, and collaborate closely with technical and business stakeholders. Key Responsibilities Design, develop, and execute ETL processes to migrate data from legacy systems to target platforms. Write and optimise complex SQL queries (preferably MySQL) to support data extraction, transformation, and validation. Apply the full data quality framework … resolve data-related issues promptly. Ensure migrations comply with data governance, security, and regulatory requirements. Work with case management software and related systems to understand data structures and workflows. Qualifications Essential: Proven experience in public sector large-scale data migration projects. Strong SQL development skills within MySQL environments. Solid ...

risks, and collaborate closely with technical and business stakeholders. Key Responsibilities Design, develop, and execute ETL processes to migrate data from legacy systems to target platforms. Write and optimise complex SQL queries (preferably MySQL) to support data extraction, transformation, and validation. Apply the full data quality framework … resolve data-related issues promptly. Ensure migrations comply with data governance, security, and regulatory requirements. Work with case management software and related systems to understand data structures and workflows. Qualifications Essential: Proven experience in public sector large-scale data migration projects. Strong SQL development skills within MySQL environments. Solid ...

risks, and collaborate closely with technical and business stakeholders. Key Responsibilities Design, develop, and execute ETL processes to migrate data from legacy systems to target platforms. Write and optimise complex SQL queries (preferably MySQL) to support data extraction, transformation, and validation. Apply the full data quality framework … resolve data-related issues promptly. Ensure migrations comply with data governance, security, and regulatory requirements. Work with case management software and related systems to understand data structures and workflows. Qualifications Essential: Proven experience in public sector large-scale data migration projects. Strong SQL development skills within MySQL environments. Solid ...

risks, and collaborate closely with technical and business stakeholders. Key Responsibilities Design, develop, and execute ETL processes to migrate data from legacy systems to target platforms. Write and optimise complex SQL queries (preferably MySQL) to support data extraction, transformation, and validation. Apply the full data quality framework … resolve data-related issues promptly. Ensure migrations comply with data governance, security, and regulatory requirements. Work with case management software and related systems to understand data structures and workflows. Qualifications Essential: Proven experience in public sector large-scale data migration projects. Strong SQL development skills within MySQL environments. Solid ...

risks, and collaborate closely with technical and business stakeholders. Key Responsibilities Design, develop, and execute ETL processes to migrate data from legacy systems to target platforms. Write and optimise complex SQL queries (preferably MySQL) to support data extraction, transformation, and validation. Apply the full data quality framework … resolve data-related issues promptly. Ensure migrations comply with data governance, security, and regulatory requirements. Work with case management software and related systems to understand data structures and workflows. Qualifications Essential: Proven experience in public sector large-scale data migration projects. Strong SQL development skills within MySQL environments. Solid ...

global client, operating multiple business lines, is hiring a Group People Technology Manager to own its people technology strategy and HR systems landscape. This high-impact role sits at the heart of the People function, driving digital transformation, employee experience and HR data insights. Key Responsibilities Technology Strategy & Delivery … Lead the development and execution of a global people technology roadmap. Act as the technical expert across all HR systems, supporting escalations and representing technology needs in planning forums. User Experience & Process Improvement Drive system integration and automation to improve employee experience and data flow. Lead enhancements and tooling ...

Scalable, secure, highly available IoT solutions Strong alignment between business outcomes and technical decisions Key Responsibilities Define end-to-end solution architectures across software, systems, and platforms Produce target architecture blueprints, logical flows, system interactions, and contracts Lead architectural decisions that support long-term scalability, security, and operability Evaluate … transformation programmes Background as a Solution Architect or Solution Designer on complex platforms Strong understanding of cloud, platform engineering, APIs, messaging, and workflow systems Comfortable operating across legacy systems and modern cloud-native architectures Strong commercial awareness and evidence-based decision makingCloud platforms and platform engineering ...

/CD pipelines and developer tooling, while embedding security-by-default, reliability and scalability into the platform. You'll modernise legacy systems, build new backend capabilities, and make pragmatic engineering decisions that balance delivery speed, quality and long-term maintainability. Core Responsibilities Platform Engineering … reliability, scalability, and cost efficiency through automation and platform standards Backend Engineering Own, maintain, and evolve backend services across legacy and greenfield systems Design and implement scalable backend architectures using Node.js, TypeScript, and NestJS Build and operate RESTful APIs and event-driven systems (queues/topics ...

focused on creating a cohesive architecture that supports business growth and operational excellence. You'll assess the current technology landscape across trading systems, finance, and middle office, identify gaps, and design a roadmap to leave legacy systems behind and build a modern, integrated ecosystem. This … hands-on coding role - it's about vision, strategy, and influence. You'll guide the mapping and research phase, evaluate pricing and trading systems, and make informed recommendations that transform how we operate. We need someone who can bridge the gap between technology and business. What ...

scalable services using Python as the primary backend language, while supporting existing services built in Java and .NET. Maintain and enhance legacy systems using Oracle SQL PL. Implement Test-Driven Development (TDD) practices, ensuring automated tests are written prior to code development. Work with complex data challenges ...

scalable services using Python as the primary backend language, while supporting existing services built in Java and .NET. Maintain and enhance legacy systems using Oracle SQL PL. Implement Test-Driven Development (TDD) practices, ensuring automated tests are written prior to code development. Work with complex data challenges ...

Lead C# Engineer – Core Trading Systems - Global Multi-Asset Investment Firm - London - Up to £400k TC Our client is a globally recognized, multi-asset investment firm managing over $25 billion in assets on behalf of a major philanthropic foundation and select institutional partners. Operating as both a family office … culture that values intellectual rigor, collaboration, and innovation. The firm emphasizes ownership, development, and accountability, empowering individuals to think creatively, challenge assumptions, and build systems that drive real performance impact. The Opportunity We are seeking a Software Engineer to join the firm's Core Development team, which builds ...

dashboards and reports to provide actionable insights. Designing and developing robust ETL solutions using Azure Data Factory and related services. Managing integrations between internal systems and external partners. Supporting data migration from legacy systems into the new platform. Collaborating with technical and non-technical stakeholders ...