1 to 25 of 31 Legacy Systems Jobs in South Yorkshire

Senior Full Stack C# .NET DeveloperFully Remote (UK Residents Only) About WebX Systems At WebX, we specialise in technical publishing and content management solutions for the aerospace and defence sectors worldwide. Our flagship products— UltraCSDB®, UltraAuthorTM, UltraXMLTM , and UltraPortalTM —are used globally and combine proven legacy systems … Stack .NET Developer to help evolve our product suite. You’ll work across both legacy Windows desktop applications and modern web-based systems and help lead the transition toward cloud-native architecture. This role is perfect for someone who enjoys innovating within established environments while also driving … quality. What We Offer Salary : £70,000 – £85,000 depending on experience Technical Growth – Work across a diverse technology landscape, from legacy systems to cutting-edge cloud-native tools. Autonomy – Freedom to shape technical decisions and make a significant impact on product direction and architecture. Career Advancement More ❯

Senior Full Stack C# .NET DeveloperFully Remote (UK Residents Only) About WebX Systems At WebX, we specialise in technical publishing and content management solutions for the aerospace and defence sectors worldwide. Our flagship products— UltraCSDB®, UltraAuthorTM, UltraXMLTM , and UltraPortalTM —are used globally and combine proven legacy systems … Stack .NET Developer to help evolve our product suite. You’ll work across both legacy Windows desktop applications and modern web-based systems and help lead the transition toward cloud-native architecture. This role is perfect for someone who enjoys innovating within established environments while also driving … quality. What We Offer Salary : £70,000 – £85,000 depending on experience Technical Growth – Work across a diverse technology landscape, from legacy systems to cutting-edge cloud-native tools. Autonomy – Freedom to shape technical decisions and make a significant impact on product direction and architecture. Career Advancement More ❯

Leading the development of new features using modern DevOps and deployment practices ( Docker, AWS ECS, CI/CD ) Refactoring and optimising legacy systems for performance, scalability, and maintainability Mentoring a junior developer through code reviews, guidance, and best practices Collaborating with business stakeholders to translate needs into More ❯

Leading the development of new features using modern DevOps and deployment practices ( Docker, AWS ECS, CI/CD ) Refactoring and optimising legacy systems for performance, scalability, and maintainability Mentoring a junior developer through code reviews, guidance, and best practices Collaborating with business stakeholders to translate needs into More ❯

will join a cross-functional team delivering end-to-end, full stack solutions from design through to deployment helping to modernise legacy systems and build scalable, cloud-native applications in Azure. You'll be working on a range of client and internal projects using a well-rounded … They’re Looking For: Strong experience building applications using C# and .NET frameworks Hands-on with SQL, MVC, and WCF Familiarity with modernising legacy apps into cloud-native Azure environments Confident with DevOps practices, CI/CD pipelines, and agile delivery Solid understanding of software engineering best practices More ❯

will join a cross-functional team delivering end-to-end, full stack solutions from design through to deployment helping to modernise legacy systems and build scalable, cloud-native applications in Azure. You'll be working on a range of client and internal projects using a well-rounded … They’re Looking For: Strong experience building applications using C# and .NET frameworks Hands-on with SQL, MVC, and WCF Familiarity with modernising legacy apps into cloud-native Azure environments Confident with DevOps practices, CI/CD pipelines, and agile delivery Solid understanding of software engineering best practices More ❯

and guiding large-scale data platform migrations. Proficiency in AWS, Azure, or GCP is required, and familiarity with SAP BW, SAP Datasphere, and legacy-to-cloud migration strategies is a significant advantage. If you thrive in a consultative environment, have a passion for architecting scalable data solutions, and … and implement CDC and delta load frameworks to enhance data integration and performance. Platform Modernization & SAP Expertise: Lead complex migrations from legacy systems to modern cloud platforms; oversee SAP BW to SAP Datasphere transitions and leverage SAP Data Analytics to maximize solution effectiveness. Governance, Security & Collaboration: Ensure … experience as a Data Solutions Consultant, Pre-Sales Data Engineer, or in a cloud data architecture role in SAP BW, AP Datasphere, and legacy-to-cloud migration strategies Hands-on experience with AWS, Azure, or GCP and familiarity with cloud-native tools such as AWS Glue, DMS, Kafka More ❯

and guiding large-scale data platform migrations. Proficiency in AWS, Azure, or GCP is required, and familiarity with SAP BW, SAP Datasphere, and legacy-to-cloud migration strategies is a significant advantage. If you thrive in a consultative environment, have a passion for architecting scalable data solutions, and … and implement CDC and delta load frameworks to enhance data integration and performance. Platform Modernization & SAP Expertise: Lead complex migrations from legacy systems to modern cloud platforms; oversee SAP BW to SAP Datasphere transitions and leverage SAP Data Analytics to maximize solution effectiveness. Governance, Security & Collaboration: Ensure … experience as a Data Solutions Consultant, Pre-Sales Data Engineer, or in a cloud data architecture role in SAP BW, AP Datasphere, and legacy-to-cloud migration strategies Hands-on experience with AWS, Azure, or GCP and familiarity with cloud-native tools such as AWS Glue, DMS, Kafka More ❯

Configure Salesforce and perform necessary customisations to meet client requirements. Oversee data migration efforts, ensuring the accurate transfer of data from legacy systems to Salesforce. Develop and execute test plans to ensure the quality and functionality of Salesforce solutions. Provide user training and support to ensure the More ❯

Configure Salesforce and perform necessary customisations to meet client requirements. Oversee data migration efforts, ensuring the accurate transfer of data from legacy systems to Salesforce. Develop and execute test plans to ensure the quality and functionality of Salesforce solutions. Provide user training and support to ensure the More ❯

practices, and mentor more junior team members internally. Initial Project Responsibilities Diverse assignments spanning modern cloud and data infrastructure, from modernising legacy systems into cloud-native architectures to building and maintaining robust data platforms across multiple cloud providers. Implementation of secure data processing environments for classified information More ❯

practices, and mentor more junior team members internally. Initial Project Responsibilities Diverse assignments spanning modern cloud and data infrastructure, from modernising legacy systems into cloud-native architectures to building and maintaining robust data platforms across multiple cloud providers. Implementation of secure data processing environments for classified information More ❯

design, server-side architecture) best practices. Key Responsibilities As our solutions architect, you will be accountable for the development, maintenance and execution of the systems architecture roadmaps. Conduct architectural reviews and propose technical solutions for ongoing digital transformation initiatives. Working closely with the logistics, business systems and development … to ensure that design options are effectively evaluated and that robust recommendations are made. Proven ability to react to issues with legacy systems and suggest innovative approaches to day-to-day challenges within the existing bounds of those platforms. Ongoing governance of project delivery against agreed designs More ❯

design, server-side architecture) best practices. Key Responsibilities As our solutions architect, you will be accountable for the development, maintenance and execution of the systems architecture roadmaps. Conduct architectural reviews and propose technical solutions for ongoing digital transformation initiatives. Working closely with the logistics, business systems and development … to ensure that design options are effectively evaluated and that robust recommendations are made. Proven ability to react to issues with legacy systems and suggest innovative approaches to day-to-day challenges within the existing bounds of those platforms. Ongoing governance of project delivery against agreed designs More ❯

of GDPR, consent management, and data security best practices. Practical experience with Agile methodologies. Proficient in integrating third-party APIs, internal tools, and legacy systems. Familiarity with architecture tools (e.g., Ardoq) to identify system dependencies and gaps. Strong stakeholder management and cross-functional collaboration skills. Strategic thinker with More ❯

of GDPR, consent management, and data security best practices. Practical experience with Agile methodologies. Proficient in integrating third-party APIs, internal tools, and legacy systems. Familiarity with architecture tools (e.g., Ardoq) to identify system dependencies and gaps. Strong stakeholder management and cross-functional collaboration skills. Strategic thinker with More ❯

You’ll be joining a high-impact security team at a pivotal point in the company’s growth. The environment spans legacy systems, enterprise-grade platforms, and greenfield builds – making it an ideal opportunity for individuals who thrive in varied, fast-paced environments and enjoys taking ownership More ❯

You’ll be joining a high-impact security team at a pivotal point in the company’s growth. The environment spans legacy systems, enterprise-grade platforms, and greenfield builds – making it an ideal opportunity for individuals who thrive in varied, fast-paced environments and enjoys taking ownership More ❯

models) and delivered measurable improvements like a 10% boost in classification accuracy. • System Modernization: Proficient in optimizing workflows, reducing technical debt, and modernizing legacy systems. • Automation and Efficiency: Developed automated solutions, including CI/CD pipelines, testing frameworks, and predictive models to enhance efficiency. • Collaboration and Impact: Demonstrated … As an AI-Powered Solutions Developer, you will be at the forefront of Volaris' transformation efforts. Your role will involve modernizing legacy systems, enhancing developer efficiency, reducing technical debt, and applying AI-driven tools to optimize workflows. This is a hands-on role for someone eager to … generators. • Continuous Learner: Driven to seek out, learn, and apply new technologies. • Adaptable: Proficient in switching across technologies, toolsets, and working with both legacy and modern systems. • Project Focused: Maintains a clear focus on milestones and timelines. Key Responsibilities • Blend technical expertise with clear, impactful storytelling • Focus demos More ❯

models) and delivered measurable improvements like a 10% boost in classification accuracy. • System Modernization: Proficient in optimizing workflows, reducing technical debt, and modernizing legacy systems. • Automation and Efficiency: Developed automated solutions, including CI/CD pipelines, testing frameworks, and predictive models to enhance efficiency. • Collaboration and Impact: Demonstrated … As an AI-Powered Solutions Developer, you will be at the forefront of Volaris' transformation efforts. Your role will involve modernizing legacy systems, enhancing developer efficiency, reducing technical debt, and applying AI-driven tools to optimize workflows. This is a hands-on role for someone eager to … generators. • Continuous Learner: Driven to seek out, learn, and apply new technologies. • Adaptable: Proficient in switching across technologies, toolsets, and working with both legacy and modern systems. • Project Focused: Maintains a clear focus on milestones and timelines. Key Responsibilities • Blend technical expertise with clear, impactful storytelling • Focus demos More ❯

an experienced OpenSearch Developer to join an exciting in-flight project. You must be able to demonstrate experience developing high performance legacy systems and have full lifecycle experience to participate in analysis, design and implentation activities. Soft skills are essential as you will be liaising with end More ❯

while shaping the next era of software delivery? Are you a seasoned software engineer who thrives on building clean, modern solutions to replace outdated systems? Do you want to utilise your traditional engineering experience while having the scope to become an expert in AI? My client is on the … pragmatic mindset and a passion for staying ahead in a fast-moving industry. You’ll be joining a small, remote-first team delivering greenfield systems for growing UK and international businesses, replacing outdated architectures with modern, scalable solutions. What You’ll Be Doing: Working end-to-end on greenfield … software projects that replace legacy systems or building end-to-end solutions for startups. Taking the lead on architecture, development, deployment, and testing - no hand-holding or rigid process silos. Applying AI tools intelligently to boost delivery speed without sacrificing quality. Engaging with clients directly to shape More ❯

while shaping the next era of software delivery? Are you a seasoned software engineer who thrives on building clean, modern solutions to replace outdated systems? Do you want to utilise your traditional engineering experience while having the scope to become an expert in AI? My client is on the … pragmatic mindset and a passion for staying ahead in a fast-moving industry. You’ll be joining a small, remote-first team delivering greenfield systems for growing UK and international businesses, replacing outdated architectures with modern, scalable solutions. What You’ll Be Doing: Working end-to-end on greenfield … software projects that replace legacy systems or building end-to-end solutions for startups. Taking the lead on architecture, development, deployment, and testing - no hand-holding or rigid process silos. Applying AI tools intelligently to boost delivery speed without sacrificing quality. Engaging with clients directly to shape More ❯

Application Specialist Idox Uniform Specialist Key Responsibilities: System Setup & Configuration Assess current system usage and identify optimisation opportunities Configure workflows and integrations with existing systems/databases Tailor the platform to reflect local authority-specific processes Conduct data audits and cleansing to ensure accuracy Migrate from any legacy systems with zero data loss Validate and test all transferred data to ensure system integrity Develop and deliver tailored training for council staff Provide clear documentation and run workshops Offer ongoing support and troubleshooting throughout the project lifecycle Application Specialist Idox Uniform Technical & Compliance Requirements: Deep knowledge More ❯

Application Specialist Idox Uniform Specialist Key Responsibilities: System Setup & Configuration Assess current system usage and identify optimisation opportunities Configure workflows and integrations with existing systems/databases Tailor the platform to reflect local authority-specific processes Conduct data audits and cleansing to ensure accuracy Migrate from any legacy systems with zero data loss Validate and test all transferred data to ensure system integrity Develop and deliver tailored training for council staff Provide clear documentation and run workshops Offer ongoing support and troubleshooting throughout the project lifecycle Application Specialist Idox Uniform Technical & Compliance Requirements: Deep knowledge More ❯