1 to 25 of 167 Remote Legacy Systems Jobs in the UK

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 ❯

Hybrid), £475-525 per day Inside IR35 Contract role for an experienced Business Data Analyst required to support a large-scale transformation programme, focused on replacing legacy systems with Salesforce CRM and delivering strategic improvements to customer data. You'll bring proven experience in data analysis, data mapping, and data migration projects within CRM or enterprise system … strong advantage. This role is for a proactive and detail-oriented Data Analyst to support a major CRM and customer data transformation, including the migration from legacy systems to Salesforce. This role will focus on analysing customer data, documenting legacy structures, identifying data quality issues, and supporting data mapping, cleansing, validation, and reconciliation activities. Working … driving insight, enabling CRM optimisation, and ensuring the integrity and successful delivery of customer data throughout the migration process. Experience Required: Proven experience supporting data migration projects, including legacy data analysis and transformation. Familiarity with data governance frameworks, including stewardship, ownership, and quality monitoring. Proficiency in SQL, Excel, python and data visualisation tools (e.g., Power BI, Tableau). More ❯

Apply online only) per day Inside IR35 Contract role for an experienced Business Data Analyst required to support a large-scale transformation programme, focused on replacing legacy systems with Salesforce CRM and delivering strategic improvements to customer data. You'll bring proven experience in data analysis, data mapping, and data migration projects within CRM or enterprise system … strong advantage. This role is for a proactive and detail-oriented Data Analyst to support a major CRM and customer data transformation, including the migration from legacy systems to Salesforce. This role will focus on analysing customer data, documenting legacy structures, identifying data quality issues, and supporting data mapping, cleansing, validation, and reconciliation activities. Working … driving insight, enabling CRM optimisation, and ensuring the integrity and successful delivery of customer data throughout the migration process. Experience Required: Proven experience supporting data migration projects, including legacy data analysis and transformation. Familiarity with data governance frameworks, including stewardship, ownership, and quality monitoring. Proficiency in SQL, Excel, python and data visualisation tools (e.g., Power BI, Tableau). More ❯

ongoing evolution of key platforms in collaboration with cross-functional teams. For this, they are looking for a technically confident developer who's comfortable working across a range of systems, technologies, and business needs. Key Responsibilities: Participate in the design, enhancement, and migration of legacy systems built in C#, VB, and Angular, using MySQL, PostgreSQL, and … maintainability, and ongoing evolution. Contribute to the implementation of modern architectures: microservices, containerised services, and serverless cloud-native components in AWS. Diagnose and resolve complex support issues in legacy applications. Contribute to Agile processes using KANBAN, ensuring transparency and delivery alignment. Document architecture decisions, deployment processes, and codebase changes clearly and thoroughly. Skills & Experience: Expertise in backend development … Javascript, HTML, CSS Strong database skills with SQL Server, MySQL, and PostgreSQL Familiarity working within a cloud environment, particularly AWS or Azure Experience maintaining and modernising legacy systems Experience working in a client-facing or business-facing technical role This is a full-time, permanent role, offering a starting salary up to £65,000 (Depending on experience More ❯

web development, ideally with experience in .NET Core, C#, and modern front-end frameworks. As the lead developer you will play a key role in reducing legacy systems, building shared libraries, and guiding the forming small internal development team in adopting best practices and modern frameworks. The Lead Developer salary & benefits: * Salary: c … the office Some of the main duties of the Lead Developer C# .NET will include: * Architect and oversee development of internal applications and services. * Lead the migration of legacy desktop and web applications to .NET Core, ensuring modularity, testability, and cross-platform compatibility. * Define and enforce coding standards, version control practices (Git), and CI/CD pipelines. Ensure … frameworks. * Proven ability to lead a small development team and enforce coding standards. * Experience with shared libraries, modular architecture, and multi-platform delivery. * Comfortable working with legacy systems and transitioning them to modern platforms. * Familiarity with CI/CD pipelines, Git, Azure DevOps, and containerisation (Docker/Kubernetes). * Strong communicator who can collaborate with internal stakeholders More ❯

business that is in the middle of an exciting technology transformation. They are seeking a Senior .NET Developer to take a leading role in modernising their legacy systems and driving AI adoption across the company. This is a fantastic opportunity for someone passionate about technology evolution, AI tooling, and delivering clean, modern code. You’ll help replace … to a React front end (already 50% there!) Mentoring and supporting other developers while ensuring best practices Collaborating with IT and product teams to redesign and modernise core business systems Participating in architecture discussions, code reviews, and deployment strategy Writing maintainable, well-documented code and implementing scalable solutions What We’re Looking For: 5+ years of .NET development experience … with proven modernisation/migration projects Experience moving from legacy systems (VB.NET) to modern stacks Strong knowledge of C#, .NET Core, SQL Server, REST APIs, and cloud environments Hands-on experience using AI developer tools like GitHub Copilot or ChatGPT Passion for clean code, architecture, and technical leadership Strong communication skills and a collaborative mindset Why Join More ❯

now 7 years in a row! As a Lead Software Engineer , you will help build, support, and improve the software used across the organisation. This includes: In-house developed systems Integrations with third-party and internal systems Legacy systems Development tools and infrastructure You will lead by example, guide engineers, and support the team manager More ❯

for continuous improvement and innovative solutions Work on both front-end and back-end development with a focus on C#, WPF, ASP.NET, and SQL Server Support legacy systems built with VB.NET and WinForms The Junior C# Developer will have the following skills: A solid understanding of C#and .Net Framework Knowledge or experience working with WPFand ASP.NET for … modern application development Experience or familiarity with SQL Server for database management Willingness to work with VB.NETand WinFormsin legacy systems Familiarity with HTML, CSS, and JavaScriptfor front-end development is a plus Self-sufficient, with the initiative to identify and solve problems independently Enthusiastic about developing high-quality and reliable software Ideal Candidate: You have a passion More ❯

customer experience as well as business productivity & efficiency.The technology currently supporting John Lewis shops and contact centres is a blend of commercially available third-party platforms, bespoke in-house systems, and legacy applications that we are actively modernising, all interconnected through complex integrations with each other and other areas of the business. Find out more about being … roadmap for John Lewis shops and contact centres with the overarching business objectives. Your influence will extend to key decisions that shape the operation of shop and contact centre systems and guide how engineering drives change across this complex business area. This will involve influencing how work is managed-whether agile, waterfall, or hybrid- including the effectiveness and measurement … broker models, RESTful, streams, event based). Knowledge/experience of techniques used to increase resilience and/or scalability of systems. Experience of applying techniques from Lean and Systems Thinking. Desirable skills/experience you may have Retail or Contact Centre experience Working with legacy systems Will have been a hands-on software engineer for More ❯

Acturis Business Systems Analyst Insurance Glasgow This is a new and exclusive role for a Acturis Business Systems Analyst to join my thriving Insurance client based in Glasgow city centre as they expand their acturis projects team. Role details Title- Acturis Business Systems Analyst Employer: Insurance Location: Glasgow and home working hybrid Permanent role, competitive salary Overview … The Business Systems Migration Analyst is tasked with managing and executing data migration workstreams within the Acturis insurance software platform. This role is crucial in ensuring the accurate and efficient transfer of data from legacy systems to Acturis, while maintaining data integrity throughout the process. In this role you will support the overall implementation process, playing More ❯

Acturis Business Systems Analyst Insurance Glasgow This is a new and exclusive role for a Acturis Business Systems Analyst to join my thriving Insurance client based in Glasgow city centre as they expand their acturis projects team. Role details Title- Acturis Business Systems Analyst Employer: Insurance Location: Glasgow and home working hybrid Permanent role, competitive salary Overview … The Business Systems Migration Analyst is tasked with managing and executing data migration workstreams within the Acturis insurance software platform. This role is crucial in ensuring the accurate and efficient transfer of data from legacy systems to Acturis, while maintaining data integrity throughout the process. In this role you will support the overall implementation process, playing More ❯

Acturis Business Systems Analyst Insurance Glasgow This is a new and exclusive role for a Acturis Business Systems Analyst to join my thriving Insurance client based in Glasgow city centre as they expand their acturis projects team. Role details Title- Acturis Business Systems Analyst Employer: Insurance Location: Glasgow and home working hybrid Permanent role, competitive salary Overview … The Business Systems Migration Analyst is tasked with managing and executing data migration workstreams within the Acturis insurance software platform. This role is crucial in ensuring the accurate and efficient transfer of data from legacy systems to Acturis, while maintaining data integrity throughout the process. In this role you will support the overall implementation process, playing More ❯

Acturis Business Systems Analyst Insurance Glasgow This is a new and exclusive role for a Acturis Business Systems Analyst to join my thriving Insurance client based in Glasgow city centre as they expand their acturis projects team. Role details Title- Acturis Business Systems Analyst Employer: Insurance Location: Glasgow and home working hybrid Permanent role, competitive salary Overview … The Business Systems Migration Analyst is tasked with managing and executing data migration workstreams within the Acturis insurance software platform. This role is crucial in ensuring the accurate and efficient transfer of data from legacy systems to Acturis, while maintaining data integrity throughout the process. In this role you will support the overall implementation process, playing More ❯

Acturis Business Systems Analyst Insurance Glasgow This is a new and exclusive role for a Acturis Business Systems Analyst to join my thriving Insurance client based in Glasgow city centre as they expand their acturis projects team. Role details Title- Acturis Business Systems Analyst Employer: Insurance Location: Glasgow and home working hybrid Permanent role, competitive salary Overview … The Business Systems Migration Analyst is tasked with managing and executing data migration workstreams within the Acturis insurance software platform. This role is crucial in ensuring the accurate and efficient transfer of data from legacy systems to Acturis, while maintaining data integrity throughout the process. In this role you will support the overall implementation process, playing More ❯

Deliver transformation of IT practices to exploit modern best practices such as DevOps, DevSecOps, automation agents and generative AI Define strategies to migrate, modernise and transform legacy systems onto modern architectures To provide technical, sectoral and design leadership to a highly skilled and motivated expert technical team To work with customer senior management and technology leaders assisting … PRINCE2) Agile (e.g. PSM or CSM Scrum Master) One or more certifications that demonstrate application or technical specialisms are desirable, such as: IT Security (e.g. CISSP, CEH, CCSP) ERP Systems (e.g. Oracle, SAP, Sales Force or MS Dynamics certifications) Product or application specialisms (e.g. O365, SharePoint, CRM, Operational Technology) Technical Delivery Experience Extensive Solution Design, development, and delivery experience More ❯

With Intelligence is a leading provider of data and insights for the global asset management industry. We are scaling up our technological capabilities, harnessing the power of advanced data systems, AI, and modern cloud-based infrastructure to build a flexible, event-driven platform that supports our growing suite of digital products. We're assembling a top-tier London-based … transformation. This role offers the opportunity to be a key contributor to our technology evolution, leveraging your deep .NET experience to influence product direction, mentor teams, and ensure our systems are robust, scalable, and modern. Role Overview As a .Net Specialist you will be leading teams in the design, development, and implementation of software solutions using the .NET framework. … in C# Strong knowledge of .NET Framework 4.x and .NET Core 3. Experience with ASP.NET Web Forms, ASMX Web Services, and MVC Familiarity with VB.NET (for legacy systems) Infrastructure & DevOps: Experience with AWS for hosting and infrastructure Skilled in IIS configuration and deployment Strong knowledge of TeamCity for CI Experience with Octopus Deploy Familiarity with Git for More ❯

Commercial bank seeking to help Britain prosper and we're transforming our products and platforms with £3bn of investment to become the bank of the future. With 789 software systems and 26,000 servers we're servicing 80,000 colleagues, 30m+ customers, and over 14m+ online users you can be confident our IT professionals have sizeable and interesting challenges … every single day. In this role, you'll deliver highly complex technical support for systems and processes in mainframe environments, focusing on decommissioning and bug fixing. You'll help maintain and help migrate services according to Group standards and policies (and to agreed service levels) and will assist with the delivery of investment funded work within mainframe environments - this … includes out of hours. Additionally, you'll provide technical support (including incident and problem resolution for systems and processes in complex environments) - again this includes out of hours support. Key responsibilities Provide support for complex environments to tight timescales. Help drive the strategy and design across the mainframe development and test estate. Work closely with key stakeholders, drive and More ❯

Commercial bank seeking to help Britain prosper and we're transforming our products and platforms with £3bn of investment to become the bank of the future. With 789 software systems and 26,000 servers we're servicing 80,000 colleagues, 30m+ customers, and over 14m+ online users you can be confident our IT professionals have sizeable and interesting challenges … every single day. In this role, you'll deliver highly complex technical support for systems and processes in mainframe environments, focusing on decommissioning and bug fixing. You'll help maintain and help migrate services according to Group standards and policies (and to agreed service levels) and will assist with the delivery of investment funded work within mainframe environments - this … includes out of hours. Additionally, you'll provide technical support (including incident and problem resolution for systems and processes in complex environments) - again this includes out of hours support. Key responsibilities Provide support for complex environments to tight timescales. Help drive the strategy and design across the mainframe development and test estate. Work closely with key stakeholders, drive and More ❯

a schedule of regular testing against various scenarios. Identify and recommend cost-effective investments in IT infrastructure in support of financial planning and budgeting. Monitor the performance of cloud systems, optimizing them for efficiency and ensuring high availability, with transparent cloud cost reporting enabling effective management of costs. Security: Ensure the security of all on-prem and cloud infrastructure. … CISSP, CCNA, CITP, CCSP, Microsoft Certified: Azure Solutions Architect Expert Familiarity with regulatory environment and risk management frameworks Demonstrable prior experience of migration projects moving from legacy systems to new/updated platforms (software/hardware/integration layer) and able to articulate role(s) played Proficiency in network architecture, server administration, storage systems, and information … experience in guiding and mentoring technical teams. Ability to collaborate effectively with diverse teams and stakeholders across different regions. Strong problem-solving skills with the ability to analyse complex systems and propose innovative solutions. Comfortable working in a dynamic environment with the ability to adapt to changing priorities and technologies. Benefits We believe in taking care of our team More ❯

/C# and WPF to guide the evolution of our LegalTech products. This is a hands-on leadership and technical role where you'll set technical direction, architect scalable systems, and ensure the delivery of high-quality, performant applications-ranging from modern WPF-based desktop software to robust cloud services. You'll play a critical part in mentoring engineers … embed testing into architecture and development, improving testability and enabling earlier defect detection. Use profiling and diagnostics tools to address performance, memory, and runtime optimizations. Refactor legacy systems to modern standards, boosting maintainability, coverage, and stability. Leverage tools like Autofac and clean architecture patterns to maintain loosely coupled and testable codebases. Team Mentorship & Collaboration Act as a More ❯

Responsibilities: Work with clients to analyse their current and future business needs, recommend best practice solutions, and define project deliverables Translate accounting requirements into system configurations Configure debt accounting systems (i.e. Allvue, Broadridge Sentry) to track complex instruments Design customised workflows aligned with investment strategies and processes Migrate data from legacy systems with validation controls Track … strategies Produce detailed status reports, track actions, and manage progress meetings Create and deliver training materials and documentation Provide ongoing system optimisation and support Qualifications and Skills: Private Credit Systems Implementation Experience (Highly Desired): Minimum 2-3 years of experience implementing private credit Investment Accounting software is highly valued. Ideal candidates would have exposure to requirements gathering, system configuration … complex capital structures, and accurately book transactions such as drawdowns, repayments, PIK interest, and fee amortisation is essential. Experience reconciling positions and cash flows across administrators, custodians, and internal systems is also highly valued. System Knowledge: Proficiency with industry-standard platforms utilised in private credit investment operations and accounting. Strong expertise with Allvue investment accounting is highly desired. Experience More ❯

Responsibilities: Work with clients to analyse their current and future business needs, recommend best practice solutions, and define project deliverables Translate accounting requirements into system configurations Configure debt accounting systems (i.e. Allvue, Broadridge Sentry) to track complex instruments Design customised workflows aligned with investment strategies and processes Migrate data from legacy systems with validation controls Track … strategies Produce detailed status reports, track actions, and manage progress meetings Create and deliver training materials and documentation Provide ongoing system optimisation and support Qualifications and Skills: Private Credit Systems Implementation Experience (Highly Desired): Minimum 2-3 years of experience implementing private credit Investment Accounting software is highly valued. Ideal candidates would have exposure to requirements gathering, system configuration … complex capital structures, and accurately book transactions such as drawdowns, repayments, PIK interest, and fee amortisation is essential. Experience reconciling positions and cash flows across administrators, custodians, and internal systems is also highly valued. System Knowledge: Proficiency with industry-standard platforms utilised in private credit investment operations and accounting. Strong expertise with Allvue investment accounting is highly desired. Experience More ❯

well as contributing to the realisation of business benefits. As a business analyst you must be able to demonstrate experience of working on a range of projects that combine systems, process and data changes along with a demonstrable track record of delivery in complex, commercially driven environments. The ability to understand the development lifecycle in terms of stages, principles … benefit case development as well as business processes modelling. The business analyst in this team will need to understand business implementation principles and issues relating to legacy systems including the analytical ability to assess legacy system documentation to impact high profile changes. You will need to have operated as BA supporting HR platforms or working More ❯

programme to transition from SAP ECC to the SAP Cloud, featuring S/4HANA and SuccessFactors. This is your chance to lead a pivotal role in modernising core business systems and enhancing data integrity! Role Overview As the Data Migration Manager , you will be at the forefront of this high-profile programme, orchestrating the end-to-end data migration … strategy. Your mission? To ensure the accurate, secure, and timely migration of data from legacy systems to a cutting-edge SAP Cloud environment. You'll work in close collaboration with business stakeholders, technical teams, and external partners. Key Responsibilities Lead the Charge: Define and own the comprehensive data migration strategy, approach, and roadmap. Data Mastery: Oversee data 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 ❯