20 of 20 Permanent Legacy Systems Jobs in the South East

summary The role is responsible for shaping and delivering a unified digital and innovation strategy, modernising legacy systems, and embedding a culture of digital excellence across the organisation. The role will ensure strong governance, cyber security, risk management, and supplier partnerships, while aligning IT investment to organisational … delivery of a robust technology strategy and enabling organisation-wide digital transformation. The postholder will oversee IT operations, digital services, and business intelligence, ensuring systems and infrastructure in place to support efficient, high-quality, and sustainable patient services. About us PML is a successful not-for-profit ...

role Our client is looking to appoint a QA Analyst who can take real ownership of quality across a suite of business-critical systems, with a particular emphasis on performance, scalability, and system resilience as the organisation evolves its technology landscape. This role will sit at the centre … scale within an increasingly modern, Azure-led environment. It will suit someone who is comfortable working across both legacy and cloud-based systems, and who can bring structure, rigour, and measurable performance standards to how quality is defined and delivered. From day one, you'll be embedded ...

Avanti Recruitment is working with a growing, technology-led business based in Slough, that is undergoing a major systems transformation. As part of this programme, they are looking to hire a Senior .NET/C# Developer to play a key role in evolving a large-scale legacy … projects Agile environments CI/CD practices Testing experience (TDD is a bonus) Exposure to cloud (AWS preferred) Desirable: Experience migrating legacy systems React or JavaScript exposure Experience introducing testing, deployment improvements or modern engineering practices into existing systems would be highly advantageous. AI Exposure/ ...

Avanti Recruitment is working with a growing, technology-led business based in Slough, that is undergoing a major systems transformation. As part of this programme, they are looking to hire a Senior .NET/C# Developer to play a key role in evolving a large-scale legacy … projects Agile environments CI/CD practices Testing experience (TDD is a bonus) Exposure to cloud (AWS preferred) Desirable: Experience migrating legacy systems React or JavaScript exposure Experience introducing testing, deployment improvements or modern engineering practices into existing systems would be highly advantageous. AI Exposure/ ...

sprint goals. Your new development will be done within a Microservices architecture, but you will also be contributing to our legacy systems while we are in the transition period. Our stack runs on Azure including Front Door, App Services, Application Insights, and App Configuration with SQL Server ...

Level 1 (Level 2 desirable) Experience delivering enterprise-scale integrations Integration experience with Salesforce, SAP, ServiceNow, AWS/Azure, databases, and legacy systems Knowledge of API security (OAuth 2.0, JWT, mTLS/SSL/TLS) Familiarity with CloudHub v2.0, Runtime Fabric, and hybrid architectures Why Apply Fully ...

Role You’ll lead multiple engineering teams and delivery partners, driving the build and integration of modern, cloud-based platforms while transitioning from legacy systems. This is not a hands-on coding role , but equally not a pure programme role — you’ll sit at the intersection of engineering ...

boarding of new customers in the UK Drive structured implementation processes with clear milestones Support and guide customers in migrating from legacy systems and processes (including Distinctive Systems) Map existing workflows and translate them into the platform Ensure successful go-live with minimal operational disruption Customer … from working within or alongside a coach operator Strong understanding of how a coach operator runs: sales, bookings, planning, and operations Familiarity with Distinctive Systems and how it is used in practice Project management, preferably within the implementation of technology Interest in and ability to work with technology ...

delivery processes. Led the build-out and ongoing evolution of high-traffic Ruby on Rails platforms supporting significant commercial throughput. Modernised legacy systems while ensuring uninterrupted business operations. Introduced AI-powered enhancements to improve customer journeys and internal operational efficiency. Collaborated with stakeholders across pricing, quoting ...

delivery processes. Led the build-out and ongoing evolution of high-traffic Ruby on Rails platforms supporting significant commercial throughput. Modernised legacy systems while ensuring uninterrupted business operations. Introduced AI-powered enhancements to improve customer journeys and internal operational efficiency. Collaborated with stakeholders across pricing, quoting ...

/MS SQL Server experience. 3+ years .NET C# experience. Strong experience with complex, data-driven applications. Proven background maintaining or upgrading legacy systems. Experience with visually inherited UIs. Strong debugging, optimisation, and performance-tuning skills. Experience working within Agile, Waterfall, or hybrid SDLC environments. Familiarity with version ...

working with a modern insurance business that's been built with a strong focus on technology from day one. No legacy systems, no outdated processes and no treating tech as an afterthought. They're well-funded, growing quickly and have put AI at the centre … current development processes and identifying where AI can add real value Driving prompt engineering and more modern, AI-led approaches to building and improving systems What they're looking for Experience within insurance or financial services (this doesn't need to be purely technical) Hands-on prompt engineering experience ...

site 3 days a week) Salary: £80,000 - £90,000 (+ benefits) Skills: Python/C++/Legacy Modernisation/Complex Systems, MOD DV Clearance We are looking to recruit a MOD DV Cleared Senior Software Engineer for a leading technology consultancy delivering complex software engineering, maintenance … software Supporting architecture changes as requirements evolve Helping modernise codebases, tooling and engineering standards The role requires someone who is comfortable working across established systems, improving existing code and supporting other engineers through mentoring, review and technical leadership. Key Responsibilities Lead hands-on software maintenance, enhancement and upgrade work ...

likely already be working as one of the following: Xero Implementation Manager Xero Practice Manager/Practice Lead Cloud Accounting Manager (Xero-focused) Accounting Systems Implementation Manager Xero Specialist/Senior Xero Specialist Digital Accounting Manager (Xero-focused) What you'll be doing Leading end-to-end Xero implementations … client migrations Onboarding SMEs onto Xero from legacy systems Acting as the internal Xero subject matter expert Delivering Xero training for internal teams and clients Troubleshooting complex Xero setup, workflow, and integration issues Building scalable onboarding guides, FAQs, and training resources Improving implementation processes and reducing support ...

aligned to our technology strategy. You will partner with Product, Platform, Cyber, Operations, Change and business stakeholders to reduce complexity, modernise legacy systems and support confident decision making across the organisation. Location: Fully remote (UK based). Responsibilities Define and maintain our enterprise and target state architecture ...

Previous team leadership or mentoring experience Strong understanding of data architecture, engineering best practices, and data quality Comfortable working with legacy source systems and improving data reliability Able to communicate effectively with both technical and business stakeholders Why Apply? Newly created role with significant ownership and influence ...

expect to be involved in the following: Design and implement a governed Databricks Lakehouse, including catalog and data structures. Migrate complex legacy SQL into clean, modular, and maintainable pipelines. Build scalable transformation frameworks using Spark and Python or SQL-based pipelines. Optimise query performance across large datasets, improving … Delta Lake, Unity Catalog, and SQL Warehousing. Advanced SQL skills with a focus on performance tuning and optimization. Experience migrating legacy data systems into scalable architectures. Proven ability to design and build data pipelines using Spark and Python or SQL. Strong understanding of data modelling, including star ...

build, and maintain NetSuite customisations using SuiteScript (1.0 and 2.0/2.1) and SuiteFlow workflows Develop scalable and maintainable enhancements aligned with business requirements Systems Integration Design, implement, and support integrations between NetSuite and third-party applications Work with REST/SOAP APIs and data formats such as JSON … reporting requirements across teams Troubleshooting & Optimisation Diagnose and resolve script errors, integration issues, and system performance bottlenecks Lead performance optimisation initiatives, including refactoring legacy scripts and improving system efficiency Release & Change Management Manage deployment of customisations across Sandbox and Production environments Ensure controlled releases with minimal disruption ...

around the area to help cover Leave at sites (within a 2hr travel) What we're looking for: Microsoft Windows 10, and 11 Operating Systems Deployment, configuration, and support Support Microsoft Office 2016 onwards Proven and demonstrable software and hardware troubleshooting skills, experience in a Deskside Support role Knowledge … team or independently Desirable skills/qualifications: Microsoft Windows 10 and/or 11 training, certification, and experience Legacy Operating Systems Active Directory management Understanding of Microsoft SCCM Experience of Microsoft Entra Experience of Trellix EPO and client-side agents Experience of client-side Wi-Fi configuration ...

Senior Software Engineer (SFIA 5) to join a leading Central Government defence organisation, supporting the development, maintenance, and modernisation of complex mission critical software systems within a highly secure engineering environment. SENIOR SOFTWARE ENGINEER (SFIA 5) - PORTSMOUTH - PERMANENT - UP TO £90,000 - ACTIVE DV CLEARANCE REQUIRED - 3 DAYS ONSITE … complex software estate, where reliability, performance, and long term maintainability are critical. You will be working hands on across legacy and modern systems, driving improvement in code quality, resolving high severity defects, and supporting the evolution of engineering standards across the team. The environment is highly collaborative ...