76 to 100 of 400 Legacy Systems Jobs in England

leadership to drive our engineering excellence forward. Key Responsibilities: Technical Leadership: Serve as a hands-on technical leader who can architect, design, and guide the implementation of highly resilient systems Build a compelling vision and strategic roadmap for our SRE, DevOps, and Platform Engineering functions Establish and evangelize engineering best practices across teams and the wider organization Drive technical … innovation while ensuring operational excellence Provide architectural guidance to ensure systems meet resilience, scalability, and performance requirements Team Leadership: Lead and mentor a high-performing team of DynamoDB specialists, SREs, DevOps engineers, and platform engineers across global locations Develop team members through goal setting, performance management, and career development planning Foster a culture of innovation, continuous improvement, and engineering … leading distributed global teams Desired Skills: Experience in financial services technology environments Knowledge of AWS, Kubernetes, observability platforms, and CI/CD technologies Background in transforming legacy systems to modern architectures Experience with DynamoDB and cloud-native database technologies Understanding of UK and global financial regulatory requirements What We Offer: Chance to shape the technical direction of More ❯

a growing Software Consultancy/MSP. As a Senior Developer/Consultant you will work with a long established client to help them modernise and transform legacy systems to modern microservices, cloud based solutions to support business growth. You'll collaborate with the client to understand their business needs and take a lead role in developing and … three times per month. About you: You are an experienced Software Developer/Consultant with strong C# .Net Core skills You have experience with API development, microservices, Cloud based systems (AWS, Azure or GCP) You have a thorough understanding of Computer Science fundamentals such as OOP, Design Patterns, Data Structures You have excellent communication and collaboration skills and are More ❯

a growing Software Consultancy/MSP. As a Senior Developer/Consultant you will work with a long established client to help them modernise and transform legacy systems to modern microservices, cloud based solutions to support business growth. You'll collaborate with the client to understand their business needs and take a lead role in developing and … three times per month. About you: You are an experienced Software Developer/Consultant with strong C# .Net Core skills You have experience with API development, microservices, Cloud based systems (AWS, Azure or GCP) You have a thorough understanding of Computer Science fundamentals such as OOP, Design Patterns, Data Structures You have excellent communication and collaboration skills and are More ❯

for patients and healthcare professionals. Why This Role Now? EU Expansion: Harmonise architecture across jurisdictions with varying compliance, data residency, and operational models. Platform Unification: Consolidate legacy systems into a modular, reusable platform architecture. Digital Acceleration: Enable rapid product development without compromising interoperability, governance, or safety. Cross-Functional Collaboration: Act as a unifying technical voice across Product … to articulate a future-state architecture aligned with business strategy. Principles-led Design: Grounded in sound architectural principles, not just trends. System Thinker: Views architecture as a system-of-systems — from infrastructure to UX. Pragmatic Execution: Balances scalability with lean governance; avoids overengineering. Strong Collaborator: Influences across disciplines and senior stakeholders. Regulatory Awareness: Experience designing within regulated environments (e.g. More ❯

for patients and healthcare professionals. Why This Role Now? EU Expansion: Harmonise architecture across jurisdictions with varying compliance, data residency, and operational models. Platform Unification: Consolidate legacy systems into a modular, reusable platform architecture. Digital Acceleration: Enable rapid product development without compromising interoperability, governance, or safety. Cross-Functional Collaboration: Act as a unifying technical voice across Product … to articulate a future-state architecture aligned with business strategy. Principles-led Design: Grounded in sound architectural principles, not just trends. System Thinker: Views architecture as a system-of-systems — from infrastructure to UX. Pragmatic Execution: Balances scalability with lean governance; avoids overengineering. Strong Collaborator: Influences across disciplines and senior stakeholders. Regulatory Awareness: Experience designing within regulated environments (e.g. More ❯

office, flexible working hours The client are looking for an experienced .Net Developer to join the team and hit the ground running on the migration of legacy systems into the web, this is just 1 of a range of greenfield projects you will have to work on, their client base spans across multi-nationals and smaller UK … the .Net tech stack Solid experience with ASP.NET Core Must be comfortable working with REST API's Experience working with SQL/SQL Server Experience working with version control systems e.g Git Desirables Experience with JavaScript frameworks e.g ReactJS and AngularJS Experience with Winforms Working knowledge of NodeJS Azure DevOps What they're offering Salary More ❯

our business units. Our technology teams offer you an environment that will present you with exciting challenges - be it through the support and further development of legacy systems or the introduction of modern technologies such as AI, machine learning and highly automated trading applications. Our Technology department of around 300 employees works largely in an agile way … presenting this data on our Investment Bank website, creating new products for our clients (AI, calculation engine, multi media channels). The team also provides registration, scheduling and reporting systems for the Conferencing team which serve CEOs/CFOs, covering both small and flagship events. The team of 5 developers and 1 product owner use agile methodologies to deliver More ❯

an IT professional, work closely with our business units. Our Technology teams offer you an environment full of exciting challenges - whether it's supporting and developing legacy systems or introducing modern technologies such as AI, machine learning, and highly automated trading applications. Our IT department, with around 300 employees, works mostly in an agile manner using a … flexible mindset, with the necessary willingness to learn about our comprehensive product range In-depth experience with Oracle RAC Ideally, initial experience in database administration, especially with relational database systems Knowledge of SQL, PL/SQL, Ansible, and scripting (Shell) is an advantage Know-how in Linux is a plus Very good written and spoken German and English skills More ❯

Access Management (IdAM), and overall access governance. This role will collaborate closely with cyber security, engineering, and business stakeholders, ensuring the delivery of secure, modern platforms to replace legacy systems. Candidates based in the UK, able to work in a hybrid model (two days per week in either our London or Nuneaton office), are strongly preferred. The Role … new store and enterprise features. Technical Execution Ensure agile delivery of high-quality, secure solutions using Scrum, SAFe, or other scaled agile frameworks. Guide transitions from legacy systems to secure modern platforms with minimal disruption. Monitor and support post-implementation phases, addressing access issues, incidents, or escalations. Initial Objectives (First 3 Months) Establish and lead a comprehensive More ❯

and Access Management (IdAM), and overall access governance.This role will collaborate closely with cyber security, engineering, and business stakeholders, ensuring the delivery of secure, modern platforms to replace legacy systems. Candidates based in the UK, able to work in a hybrid model (two days per week in either our London or Nuneaton office), are strongly preferred. The Role … new store and enterprise features. Technical Execution Ensure agile delivery of high-quality, secure solutions using Scrum, SAFe, or other scaled agile frameworks. Guide transitions from legacy systems to secure modern platforms with minimal disruption. Monitor and support post-implementation phases, addressing access issues, incidents, or escalations. Initial Objectives (First 3 Months) Establish and lead a comprehensive More ❯

including travel to London once a month) Salary: £60,000 - £70,000 Network IT are looking for an exceptional Solutions Architect who come from a technical background of applications, systems, and software development. This individual will utilise their experience and technical knowledge of the above in conjunction with their fantastic stakeholder management and wider strategic expertise. This role currently … with the expectation that you travel to their Central London office once a month (expensed) . Role Overview Our client is undertaking a significant application replacement programme (over 250 systems, fluctuating in scale) to ensure the application environment which is critical to how they operate is maintained and is utilised to the highest standards. The successful candidate in this … Design Authority)) in environments with competent experience supporting high-code, low-code and COTS (Commercial Off The Shelf) products/systems. Key Responsibilities Design and govern technical architecture across systems and cloud platforms Maintain alignment with the organisations technology roadmap, working alongside a second Solution Architect Collaborate with stakeholders to understand business goals, product needs, and technical implications Translate More ❯

including travel to London once a month) Salary: £60,000 - £70,000 Network IT are looking for an exceptional Solutions Architect who come from a technical background of applications, systems, and software development. This individual will utilise their experience and technical knowledge of the above in conjunction with their fantastic stakeholder management and wider strategic expertise. This role currently … with the expectation that you travel to their Central London office once a month (expensed) . Role Overview Our client is undertaking a significant application replacement programme (over 250 systems, fluctuating in scale) to ensure the application environment which is critical to how they operate is maintained and is utilised to the highest standards. The successful candidate in this … Design Authority in environments with competent experience supporting high-code, low-code and COTS (Commercial Off The Shelf) products/systems. Key Responsibilities Design and govern technical architecture across systems and cloud platforms Maintain alignment with the organisation's technology roadmap, working alongside a second Solution Architect Collaborate with stakeholders to understand business goals, product needs, and technical implications More ❯

including travel to London once a month) Salary: £60,000 - £70,000 Network IT are looking for an exceptional Solutions Architect who come from a technical background of applications, systems, and software development. This individual will utilise their experience and technical knowledge of the above in conjunction with their fantastic stakeholder management and wider strategic expertise. This role currently … with the expectation that you travel to their Central London office once a month (expensed) . Role Overview Our client is undertaking a significant application replacement programme (over 250 systems, fluctuating in scale) to ensure the application environment which is critical to how they operate is maintained and is utilised to the highest standards. The successful candidate in this … Design Authority)) in environments with competent experience supporting high-code, low-code and COTS (Commercial Off The Shelf) products/systems. Key Responsibilities Design and govern technical architecture across systems and cloud platforms Maintain alignment with the organisation’s technology roadmap, working alongside a second Solution Architect Collaborate with stakeholders to understand business goals, product needs, and technical implications More ❯

and validate the processes that will be used with the new system Data migration: Identifying, cleansing and validating the data which we will need to extract from our legacy system for migration into the new system and ensuring the data is extracted and manipulated into the new format Proactively identifying and managing project risks and issues, ensuring minimal More ❯

of GenAI and ML, including LLMs, RAG, MLOps, and prompt engineering Familiarity with platforms such as AWS Bedrock, Google Vertex, LangChain, or LlamaIndex Experience with both legacy systems and modern tech stacks Proven track record in agile delivery and digital transformation Excellent communication, analytical, and stakeholder management skills Willingness to travel internationally Desirable Attributes Degree in Computer More ❯

countries, who are looking for a Senior .NET Core Developer to join their growing team. Why this role stands out: This isn't your typical "maintaining legacy systems" position. My client wants someone who can take ownership of greenfield projects from day one - starting fresh, using your initiative, and delivering complete applications. What they need from you More ❯

guide clients through application modernisation, reduce technical debt, and support continuous innovation that leads to business transformation. Our Applications Engineering practice enables clients to evolve beyond legacy systems and harness the power of modern software. We accelerate business value delivery through collaborative, multidisciplinary teams spanning Architecture, Development, Platforms, and DevOps. We're pioneers in applying AI technologies More ❯

and establish a modern, scalable, and secure technology platform that supports their long-term goal. This role will be instrumental in managing the transition away from legacy systems, introducing new platforms, and shaping the future direction of IT across the organisation. This role will require 5 days per week in the Redhill office. * Salary … technology, operations, and strategic business objectives. * Define and deliver the technology strategy to support modernisation and growth * Lead the phased migration from legacy platforms .NET to modern systems * Introduce best practices across architecture, integration, and security * Oversee end-to-end delivery of major technology transformation initiatives * Manage cross-functional teams through complex change, including cultural and technical … Manage relationships with external vendors, consultants, and delivery partners * Foster a culture of collaboration, accountability, and continuous improvement * Guide system selection, data architecture, API strategy, cloud adoption, etc * Ensure systems are secure, well-documented, and compliant with industry standards * Drive innovation through automation, analytics, and user-focused tools * Work closely with senior leadership and operational teams to understand needs More ❯

Desirable Skills Strong knowledge of technologies used to deliver end-to-end cloud solutions. Experience with cloud data platforms (e.g., AWS, Azure, Google Cloud). Proven experience designing complex systems in secure or regulated environments. Familiar with a range of cloud programming and management tools. Experienced at delivering hybrid cloud solutions and migration of legacy systems More ❯

consultancy embedded in some of the UKs most ambitious financial services programmes. They work closely with business and technology leaders to drive strategic change, from platform modernisation and core systems reengineering, to cloud adoption and integration overhaul. Your Role Youll be part of a highly credible, expert-led team shaping complex solutions across the full technology stack. Whether modernising … legacy systems, enabling cloud-first strategies, or improving end-to-end integration, youll bring structure, clarity, and delivery alignment to everything you do. What Youll Be Doing as a Solution Architect: Lead the design and implementation of end-to-end solutions across application, integration, and infrastructure domains Shape and steer technology change across major programmes, working closely … recommendations What Youll Bring as a Solution Architect: Youre a credible solution architect who thrives in fast-paced, high-compliance environments. You understand the realities of Financial Services, legacy complexity, data sensitivity, and the need to balance innovation with control. Key Experience: Deep experience in Financial Services (e.g. banking, insurance, wealth, or capital markets) Proven success delivering architecture More ❯

embedded in some of the UK’s most ambitious financial services programmes. They work closely with business and technology leaders to drive strategic change, from platform modernisation and core systems reengineering, to cloud adoption and integration overhaul. Your Role You’ll be part of a highly credible, expert-led team shaping complex solutions across the full technology stack. Whether … modernising legacy systems, enabling cloud-first strategies, or improving end-to-end integration, you’ll bring structure, clarity, and delivery alignment to everything you do. What You’ll Be Doing as a Solution Architect: Lead the design and implementation of end-to-end solutions across application, integration, and infrastructure domains Shape and steer technology change across major … You’ll Bring as a Solution Architect: You’re a credible solution architect who thrives in fast-paced, high-compliance environments. You understand the realities of Financial Services, legacy complexity, data sensitivity, and the need to balance innovation with control. Key Experience: Deep experience in Financial Services (e.g. banking, insurance, wealth, or capital markets) Proven success delivering architecture More ❯

embedded in some of the UK’s most ambitious financial services programmes. They work closely with business and technology leaders to drive strategic change, from platform modernisation and core systems reengineering, to cloud adoption and integration overhaul. Your Role You’ll be part of a highly credible, expert-led team shaping complex solutions across the full technology stack. Whether … modernising legacy systems, enabling cloud-first strategies, or improving end-to-end integration, you’ll bring structure, clarity, and delivery alignment to everything you do. What You’ll Be Doing as a Solution Architect: Lead the design and implementation of end-to-end solutions across application, integration, and infrastructure domains Shape and steer technology change across major … You’ll Bring as a Solution Architect: You’re a credible solution architect who thrives in fast-paced, high-compliance environments. You understand the realities of Financial Services, legacy complexity, data sensitivity, and the need to balance innovation with control. Key Experience: Deep experience in Financial Services (e.g. banking, insurance, wealth, or capital markets) Proven success delivering architecture More ❯

end application ownership - from architecture and design through to delivery and continuous optimisation in the payment services department. You'll play a pivotal role in delivering scalable, real-time systems built using modern technologies and practices, while also acting as a coach, mentor, and strategic partner to stakeholders across business and technology. What kind of work will I be … to lead and grow high-performing teams and shape the technical culture from the ground up. Strategic influence in a highly visible programme that will transform legacy systems into resilient, real-time platforms. A collaborative and supportive environment that values experimentation, learning, and continuous improvement. What are we looking for? You'll demonstrate: Strong hands-on technical … grounding in Java-based systems, APIs, cloud engineering, and DevOps. A proven track record of leading application development teams in complex, regulated environments. Strategic thinking, strong decision-making, and an ability to align technical delivery with business goals. A servant leadership mindset, with a focus on developing others and building high-trust teams. Clear, compelling communication skills - upward, downward More ❯

all running on AWS. We are looking for someone who is passionate about technology, loves solving customer problems, and delivers the high quality work that we expect for critical systems at Amazon. In GTTS we embody the culture of a scale-up but still assume the responsibility of building and running products at the scale and criticality of Amazon. … We follow agile development practices, working closely with customers, failing fast, and continually looking for new ideas from within and without Amazon. We proactively deprecate legacy systems to reduce the burden of technical debt, and regularly develop new-greenfield-products. As a SDE in GTTS, you will work on challenging engineering problems, processing large datasets, and building … a SDE, you provide technical leadership at Amazon. You help establish technical standards and drive Amazon's overall technical architecture, engineering practices, and methodologies. You think globally when building systems, ensuring Amazon builds high performing, scalable systems that work well together. You are hands on, producing both detailed technical work and high-level designs. In GTTS we operate More ❯

to clients in demo sessions. Overseeing configuration, testing, training, and data migration. Acting as the bridge between technical and non-technical teams. Helping to integrate BC with third-party systems and other Microsoft products. 🧠 What we’re looking for: Strong experience delivering ERP projects, especially D365 Business Central . Confident leading client workshops and scoping exercises. Experience with legacy systems like SAGE, Orderwise, Prima, etc., is a plus. Excellent communicator who can explain complex ideas clearly. Familiar with project tools like Azure DevOps, Jira, MS Project, or similar. A self-starter who enjoys autonomy but also thrives in a team. 🎯 What’s in it for you: Hybrid working A genuinely supportive team environment where your input More ❯