Permanent Legacy Systems Jobs in Derbyshire

1 to 25 of 91 Permanent Legacy Systems Jobs in Derbyshire

OT Cybersecurity Technical Lead - Rail Sector

Derby, Derbyshire, East Midlands, United Kingdom
Expleo Group
role, you will lead the technical assurance and delivery of cybersecurity activities across a programme of work involving legacy and modern OT systems, rail-specific technologies, and industrial control components. You will work closely with engineering and operational teams to embed cybersecurity across the lifecycle, ensuring alignment … engagement, focusing on protecting operational technology (OT) and safety-critical systems. Provide hands-on technical leadership to guide the secure delivery of client-specific systems and solutions, ensuring alignment with project requirements, sector standards, and regulatory obligations. Collaborate with client engineering and programme teams to integrate cybersecurity into system … design, deployment, and ongoing operations. Define cybersecurity requirements within the client's environment, including rail-specific systems, legacy OT, and modern industrial platforms. Support developing and delivering security risk assessments, threat models, and control frameworks following the relevant standards. Contribute to the production and review of assurance More ❯
Employment Type: Permanent
Posted:

OT Cybersecurity Technical Lead - Rail Sector

chesterfield, midlands, united kingdom
Expleo Group
role, you will lead the technical assurance and delivery of cybersecurity activities across a programme of work involving legacy and modern OT systems, rail-specific technologies, and industrial control components. You will work closely with engineering and operational teams to embed cybersecurity across the lifecycle, ensuring alignment … engagement, focusing on protecting operational technology (OT) and safety-critical systems. Provide hands-on technical leadership to guide the secure delivery of client-specific systems and solutions, ensuring alignment with project requirements, sector standards, and regulatory obligations. Collaborate with client engineering and programme teams to integrate cybersecurity into system … design, deployment, and ongoing operations. Define cybersecurity requirements within the client's environment, including rail-specific systems, legacy OT, and modern industrial platforms. Support developing and delivering security risk assessments, threat models, and control frameworks following the relevant standards. Contribute to the production and review of assurance More ❯
Posted:

OT Cybersecurity Technical Lead - Rail Sector

Derby, Derbyshire, United Kingdom
Expleo
role, you will lead the technical assurance and delivery of cybersecurity activities across a programme of work involving legacy and modern OT systems, rail-specific technologies, and industrial control components. You will work closely with engineering and operational teams to embed cybersecurity across the lifecycle, ensuring alignment … engagement, focusing on protecting operational technology (OT) and safety-critical systems. Provide hands-on technical leadership to guide the secure delivery of client-specific systems and solutions, ensuring alignment with project requirements, sector standards, and regulatory obligations. Collaborate with client engineering and programme teams to integrate cybersecurity into system … design, deployment, and ongoing operations. Define cybersecurity requirements within the client's environment, including rail-specific systems, legacy OT, and modern industrial platforms. Support developing and delivering security risk assessments, threat models, and control frameworks following the relevant standards. Contribute to the production and review of assurance More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Senior Full Stack C# .NET Developer

chesterfield, midlands, United Kingdom
Hybrid / WFH Options
WebX Systems Ltd
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 ❯
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Senior Full Stack C# .NET Developer

derby, midlands, United Kingdom
Hybrid / WFH Options
WebX Systems Ltd
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 ❯
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Lead Architect - Life Insurance

derby, midlands, United Kingdom
Nixor
you'll take technical ownership of a critical business domain — Pensions, Protection, or Closed Book. You’ll guide the transition from legacy systems to a modern, cloud-native, microservices architecture, with a specific focus on solutions that serve the Pensions business unit. This role blends hands-on … secure, user-focused platforms. Key Responsibilities Own the solutions architecture for your domain (applications, cloud infrastructure, integration, and security) Guide the modernisation of legacy platforms into a decoupled, event-driven microservices estate Define and implement architecture patterns, development standards, and observability practices Act as the go-to technical … looking for experienced Senior Architects with: Proven experience in solutions architecture with the Insurance Industry A strong track record of modernising legacy systems into scalable, microservices-based platforms Deep knowledge of design patterns, cloud-native practices, and architectural governance Excellent communication skills with both technical and non More ❯
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Lead Architect - Life Insurance

chesterfield, midlands, United Kingdom
Nixor
you'll take technical ownership of a critical business domain — Pensions, Protection, or Closed Book. You’ll guide the transition from legacy systems to a modern, cloud-native, microservices architecture, with a specific focus on solutions that serve the Pensions business unit. This role blends hands-on … secure, user-focused platforms. Key Responsibilities Own the solutions architecture for your domain (applications, cloud infrastructure, integration, and security) Guide the modernisation of legacy platforms into a decoupled, event-driven microservices estate Define and implement architecture patterns, development standards, and observability practices Act as the go-to technical … looking for experienced Senior Architects with: Proven experience in solutions architecture with the Insurance Industry A strong track record of modernising legacy systems into scalable, microservices-based platforms Deep knowledge of design patterns, cloud-native practices, and architectural governance Excellent communication skills with both technical and non More ❯
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Digital Systems Manager

derby, midlands, united kingdom
Hybrid / WFH Options
VANRATH
Summary Job Reference: VR230525 Job Title: Digital Systems Manager Salary: 40-41k pa Location: Lisburn, hybrid Contract: Temporary, full-time (36.25 hours pw, typically Mon-Fri/9-5) Overview VANRATH now stands as the first-tier supplier to a range of Top 100 Northern Ireland organisations, SMEs … Public Sector organisations, Health and Social Care Trusts and NFP Organisations. One of these clients is looking for a Digital Systems Manager to oversee the upgrades of legacy systems, while maintaining existing services. This is a long-term temporary position, but the desire is to make … times and hybrid working once you're up to speed. Best suited to those with experience of managing projects, managing enterprise/organisation wide systems, maintaining them, migrating to new systems, managing overall system licences etc. This isn't a system engineer or analyst role as it won More ❯
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Digital Systems Manager

chesterfield, midlands, united kingdom
Hybrid / WFH Options
VANRATH
Summary Job Reference: VR230525 Job Title: Digital Systems Manager Salary: 40-41k pa Location: Lisburn, hybrid Contract: Temporary, full-time (36.25 hours pw, typically Mon-Fri/9-5) Overview VANRATH now stands as the first-tier supplier to a range of Top 100 Northern Ireland organisations, SMEs … Public Sector organisations, Health and Social Care Trusts and NFP Organisations. One of these clients is looking for a Digital Systems Manager to oversee the upgrades of legacy systems, while maintaining existing services. This is a long-term temporary position, but the desire is to make … times and hybrid working once you're up to speed. Best suited to those with experience of managing projects, managing enterprise/organisation wide systems, maintaining them, migrating to new systems, managing overall system licences etc. This isn't a system engineer or analyst role as it won More ❯
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Finance Master Data Manager

chesterfield, midlands, United Kingdom
Stanton House
monitoring of all master data migration activities Work in close collaboration with the SI partner to deliver a seamless transition from legacy systems to the new Oracle Fusion platform Develop and implement robust data integration strategies to support efficient and secure interoperability with other internal and external … systems Drive data validation, reconciliation and quality control across all core master data domains (e.g. suppliers, customers, chart of accounts) Functional & Technical Support on Oracle Fusion Financials: Provide functional input across key Oracle modules (P2P, R2R, O2C) Support cutover, RBAC security, data reconciliation, and business testing Produce validation and … large-scale ERP programmes In-depth knowledge of Oracle Fusion Financials Cloud Extensive experience of data migration and integration from legacy finance systems Hands-on expertise with Oracle Strong stakeholder engagement and project communication skills Experience working alongside SI partners and managing cross-functional delivery Public sector More ❯
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Finance Master Data Manager

derby, midlands, United Kingdom
Stanton House
monitoring of all master data migration activities Work in close collaboration with the SI partner to deliver a seamless transition from legacy systems to the new Oracle Fusion platform Develop and implement robust data integration strategies to support efficient and secure interoperability with other internal and external … systems Drive data validation, reconciliation and quality control across all core master data domains (e.g. suppliers, customers, chart of accounts) Functional & Technical Support on Oracle Fusion Financials: Provide functional input across key Oracle modules (P2P, R2R, O2C) Support cutover, RBAC security, data reconciliation, and business testing Produce validation and … large-scale ERP programmes In-depth knowledge of Oracle Fusion Financials Cloud Extensive experience of data migration and integration from legacy finance systems Hands-on expertise with Oracle Strong stakeholder engagement and project communication skills Experience working alongside SI partners and managing cross-functional delivery Public sector More ❯
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Senior Data Engineer

derby, midlands, United Kingdom
Hybrid / WFH Options
identifi Global Resources
ABOUT THIS ROLE We’re working with an organisation currently going through a significant period of change, moving from legacy on-premise systems (SAP-based) to a modern, cloud-based Microsoft Azure environment. As part of this transformation, they’re looking for a Senior Data Engineer to … Data Engineer, you will lead the data workstream and guide other teams through the transformation. This includes mapping the data currently held in various systems, speaking with data owners to understand how it is used, and helping define data workflows. You’ll play a key role in visualising how … large-scale ERP migration. Building a federated, enterprise-wide data model—ensuring accessibility, consistency, and usability. Supporting seamless data migration from legacy systems, ensuring integrity and availability. Collaborating with domain experts and stakeholders to improve data quality and governance. Leveraging tools like Microsoft Azure, Power Platform, Power More ❯
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Senior Data Engineer

chesterfield, midlands, United Kingdom
Hybrid / WFH Options
identifi Global Resources
ABOUT THIS ROLE We’re working with an organisation currently going through a significant period of change, moving from legacy on-premise systems (SAP-based) to a modern, cloud-based Microsoft Azure environment. As part of this transformation, they’re looking for a Senior Data Engineer to … Data Engineer, you will lead the data workstream and guide other teams through the transformation. This includes mapping the data currently held in various systems, speaking with data owners to understand how it is used, and helping define data workflows. You’ll play a key role in visualising how … large-scale ERP migration. Building a federated, enterprise-wide data model—ensuring accessibility, consistency, and usability. Supporting seamless data migration from legacy systems, ensuring integrity and availability. Collaborating with domain experts and stakeholders to improve data quality and governance. Leveraging tools like Microsoft Azure, Power Platform, Power More ❯
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Solutions Architect (Data Analytics)- Presales, RFP creation

chesterfield, midlands, United Kingdom
Vallum Associates
to improve new and existing database systems. Assess data implementation procedures to ensure they comply with internal and external regulations. Install and organize information systems to guarantee functionality. Prepare accurate database design and architecture reports for management and executive teams. Oversee the migration of data from legacy systems to new solutions. Educate staff members through training and individual support. Offer support by responding to system problems in a timely manner. Requirements: Strong knowledge of database structure systems and data mining. Knowledge of systems development, including system development life cycle, project management approaches More ❯
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Solutions Architect (Data Analytics)- Presales, RFP creation

derby, midlands, United Kingdom
Vallum Associates
to improve new and existing database systems. Assess data implementation procedures to ensure they comply with internal and external regulations. Install and organize information systems to guarantee functionality. Prepare accurate database design and architecture reports for management and executive teams. Oversee the migration of data from legacy systems to new solutions. Educate staff members through training and individual support. Offer support by responding to system problems in a timely manner. Requirements: Strong knowledge of database structure systems and data mining. Knowledge of systems development, including system development life cycle, project management approaches More ❯
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Senior Technical Project Manager

chesterfield, midlands, united kingdom
Inference Group
and blockers throughout the project lifecycle. For example, anticipate challenges like data quality issues, model performance shortfalls, or integration hurdles with legacy systems, and develop contingency plans to address them. Agile project governance: Apply appropriate project management methodologies (Agile/Scrum or hybrid approaches) to track progress … adjust plans when new challenges arise. Educational Background: Bachelor’s or Master’s degree in a relevant field (Computer Science, Data Science, Engineering, Information Systems, or similar). Equivalent work experience in managing technical projects will also be considered. Continuous learning (through courses, certifications, staying up-to-date with More ❯
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Senior Technical Project Manager

derby, midlands, united kingdom
Inference Group
and blockers throughout the project lifecycle. For example, anticipate challenges like data quality issues, model performance shortfalls, or integration hurdles with legacy systems, and develop contingency plans to address them. Agile project governance: Apply appropriate project management methodologies (Agile/Scrum or hybrid approaches) to track progress … adjust plans when new challenges arise. Educational Background: Bachelor’s or Master’s degree in a relevant field (Computer Science, Data Science, Engineering, Information Systems, or similar). Equivalent work experience in managing technical projects will also be considered. Continuous learning (through courses, certifications, staying up-to-date with More ❯
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Data Transformation Programme Manager

derby, midlands, United Kingdom
Hybrid / WFH Options
identifi Global Resources
per annum About the role We’re working with a client currently undertaking a large-scale IT transformation, moving from on-premises ERP systems (SAP-based) to a modern Azure cloud ERP environment. To support this journey, they are looking for a Project Manager to lead and manage the … You Do? Interview Data owners to understand and specify what data is important in existing systems. Map and define existing data across a multiple systems and applications. Support the data migration process from legacy systems to Azure-based ERP, ensuring accuracy, integrity, and compliance throughout. Identify … Visio, PowerPoint, and Excel to provide clarity and structure. What You Need to Be Successful? Proven experience managing data migration projects, ideally involving ERP systems and Azure environments. Strong understanding of data mapping, and the challenges involved in system transitions. Experience working with stakeholders across the business, especially data More ❯
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Data Transformation Programme Manager

chesterfield, midlands, United Kingdom
Hybrid / WFH Options
identifi Global Resources
per annum About the role We’re working with a client currently undertaking a large-scale IT transformation, moving from on-premises ERP systems (SAP-based) to a modern Azure cloud ERP environment. To support this journey, they are looking for a Project Manager to lead and manage the … You Do? Interview Data owners to understand and specify what data is important in existing systems. Map and define existing data across a multiple systems and applications. Support the data migration process from legacy systems to Azure-based ERP, ensuring accuracy, integrity, and compliance throughout. Identify … Visio, PowerPoint, and Excel to provide clarity and structure. What You Need to Be Successful? Proven experience managing data migration projects, ideally involving ERP systems and Azure environments. Strong understanding of data mapping, and the challenges involved in system transitions. Experience working with stakeholders across the business, especially data More ❯
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Senior .Net Developer

chesterfield, midlands, United Kingdom
Ocho
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 ❯
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Senior .Net Developer

derby, midlands, United Kingdom
Ocho
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 ❯
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Senior .Net Developer ( NEW )

derby, midlands, united kingdom
Ocho
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 ❯
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Senior .Net Developer ( NEW )

chesterfield, midlands, united kingdom
Ocho
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 ❯
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DevOps Engineer

chesterfield, midlands, United Kingdom
Hybrid / WFH Options
DigX
DevOps Engineer – Enterprise Integration Programme £50k–£60k | Stafford | Flexible Hybrid (2–3 Days Onsite) Are you a DevOps Engineer who thrives on supporting complex systems while building automation and tools that make them better? DigX is hiring a DevOps Engineer to join our delivery team on a flagship enterprise … systems integration programme. You’ll play a hybrid role—supporting the stability of ERP and HCM platform integrations, while also contributing to the development of internal tools, automation pipelines, and lightweight applications that improve delivery and operations. This is a great opportunity for someone who enjoys technical troubleshooting, scripting … paced, collaborative environment. Your Impact as a DevOps Engineer Platform Support : Provide technical support for integration services across ERP, HCM, and legacy systems Interface Deployment : Assist in deploying and maintaining system interfaces and data pipelines Issue Resolution : Troubleshoot and resolve integration-related issues in collaboration with engineering More ❯
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DevOps Engineer

derby, midlands, United Kingdom
Hybrid / WFH Options
DigX
DevOps Engineer – Enterprise Integration Programme £50k–£60k | Stafford | Flexible Hybrid (2–3 Days Onsite) Are you a DevOps Engineer who thrives on supporting complex systems while building automation and tools that make them better? DigX is hiring a DevOps Engineer to join our delivery team on a flagship enterprise … systems integration programme. You’ll play a hybrid role—supporting the stability of ERP and HCM platform integrations, while also contributing to the development of internal tools, automation pipelines, and lightweight applications that improve delivery and operations. This is a great opportunity for someone who enjoys technical troubleshooting, scripting … paced, collaborative environment. Your Impact as a DevOps Engineer Platform Support : Provide technical support for integration services across ERP, HCM, and legacy systems Interface Deployment : Assist in deploying and maintaining system interfaces and data pipelines Issue Resolution : Troubleshoot and resolve integration-related issues in collaboration with engineering More ❯
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