51 to 75 of 148 Legacy Systems Jobs in the UK excluding London

senior individual contributor role with strong technical influence across engineering and product teams. You’ll work closely with stakeholders to modernise legacy systems, improve platform architecture, streamline integrations, and introduce practical AI-assisted engineering solutions. The position suits someone who enjoys solving complex technical problems, shaping engineering … provide technical leadership across cross-functional teams Collaborate closely with product, operations, and leadership stakeholders Essential Skills Strong background in software engineering and systems transformation Deep experience with .NET technologies, including legacy .NET Framework environments Strong Azure cloud experience and modern distributed application architecture Excellent SQL, scripting ...

Senior Software Engineer, you’ll help evolve our healthcare software portfolio, working on both AWS‐based cloud applications and business‐critical production systems used in clinical environments. You’ll play a key role in our transition from on‐premise solutions to modern cloud architectures, while maintaining reliability, compliance … team. Key Responsibilities Design and deliver scalable, secure software using C#/.NET Contribute to AWS‐hosted services and modernisation of legacy systems Influence architecture, cloud adoption, and engineering standards Write high‐quality, well‐tested code and lead strong review practices Collaborate with cross‐functional stakeholders ...

leading Northern Ireland manufacturer, implementing Microsoft Dynamics 365 Finance & Operations. You'll work closely with manufacturing, supply chain, engineering, and finance teams to ensure systems fully support operations. This role bridges business and IT - analysing processes, defining requirements, and supporting the move from legacy systems … optimisation * Map "as-is" and "to-be" processes * Facilitate solution design workshops * Assist with system testing and UAT * Support integration with production and operational systems * Provide ongoing support for existing systems What you'll bring: * Proven ERP Business Analyst experience * Experience with Microsoft Dynamics ...

consistency . Collaboration: Work alongside Architecture and Cloud teams to ensure solutions are scalable and secure. Modernization: Drive the transition from legacy systems to VXLAN/EVPN fabrics and SD-WAN technologies. Essential Technical Skills (The 'Must-Haves') To be successful, you need deep, hands-on expertise … Nice-to-Haves') Aruba Central/ClearPass SD-WAN technologies SaaS and cloud-delivered WLAN/WiFi solutions Prior experience modernizing large-scale legacy public sector networks What This Role Is Not Not an Operations-only or monitoring role. Not a pure SRE role without deep networking roots. ...

organisation is evolving from a legacy PHP platform to a modern, cloud-native, AI-enabled architecture, offering the chance to shape greenfield systems and influence engineering direction. Senior Full-Stack Software Engineer Responsibilities Design and build scalable full-stack applications using TypeScript, Node.js, and React Lead … migration from legacy PHP systems to a modern JavaScript/TypeScript stack Develop and maintain cloud infrastructure on AWS (EKS, S3, DynamoDB) using Terraform (IaC) Build and optimise CI/CD pipelines (GitHub Actions) to enable efficient delivery Contribute to AI-enabled software development, including AI-assisted ...

Title: Engineering Lead (C++) - Low Latency/Trading Systems Location: London (Hybrid) Overview Our client is a global fintech operating at scale across trading, risk, and market connectivity. They are hiring an Engineering Lead (C++) to take ownership of a business-critical platform sitting at the heart of real … Define and deliver a clear technical and product vision Improve release processes, reducing downtime and increasing deployment frequency Drive modernisation across legacy systems, infrastructure, and tooling Collaborate closely with trading, quant, and risk stakeholders Remain hands-on, contributing to production-grade C++ code What They're Looking ...

delivery of a critical Command, Control, Communications, and Computers (C4) capability. This programme spans multiple security domains and aims to modernise legacy systems into agile, configurable operational information services aligned with Defence's vision of a Platform (DaaP). What you'll be doing: Manage all proposed ...

technical and business sides of enterprise data projects. What you'll be doing Support data extraction and transformation activities from legacy systems into predefined templates Work closely with business stakeholders to identify, resolve, and improve data quality issues Support users through data validation cycles and Go-Live ...

data analysis, customer journey design, and operational transformation, supporting: A complex platform migration involving tens of thousands of customers and multiple legacy systems The design and rollout of new retirement and wealth products on modern platforms End-to-end operational readiness and process transformation You'll play ...

Microsoft Visual Studio 6.0, and ActiveX components Strong software development foundation, with willingness to work in and modernise legacy systems Familiarity with integration technologies including SOAP Toolkits and XML Experience using or supporting Team Foundation Server (TFS) environments Proven ability to troubleshoot and resolve issues in production … critical systems Experience operating within structured, controlled delivery environments Strong analytical problem-solving skills with high attention to detail Effective communication skills, working across technical and non-technical stakeholders Exposure to tools such as NuMega DevPartner Studio, Edge, or Integrated Single Sign-On (ISSO) (desirable) Willingness to learn ...

Avanti Recruitment is working with a growing, technology-led business based in Slough, that is undergoing a major systems transformation following a recent acquisition. As part of this programme, they are looking to hire a Senior .NET/C# Developer to play a key role in evolving a large … Server Refactoring and modernisation projects Agile environments CI/CD practices Testing methodologies such as TDD Cloud experience Desirable: Experience migrating legacy systems React or JavaScript exposure This is an opportunity to shape a long-term transformation programme, with high-level of technical ownership and influence. This ...

Avanti Recruitment is working with a growing, technology-led business based in Slough, that is undergoing a major systems transformation following a recent acquisition. As part of this programme, they are looking to hire a Senior .NET/C# Developer to play a key role in evolving a large … Server Refactoring and modernisation projects Agile environments CI/CD practices Testing methodologies such as TDD Cloud experience Desirable: Experience migrating legacy systems React or JavaScript exposure This is an opportunity to shape a long-term transformation programme, with high-level of technical ownership and influence. This ...

Software Developer to join its growing development team. This is an excellent opportunity for a Java Developer who enjoys solving technical problems, modernising systems and contributing ideas within a collaborative engineering environment. The company develops specialist software used within manufacturing and industrial environments and is currently going through … integrations and modern development practices. This role would suit someone who enjoys: Working on real-world software products Improving and modernising legacy systems Backend development and APIs Bringing ideas and technical improvements to a team Learning and developing alongside evolving technologies The Role You’ll be involved ...

technology direction. Key Responsibilities: • Own and evolve enterprise architecture across ERP technologies, including optimisation of S/4HANA and migration from legacy systems • Define target architectures and transition roadmaps aligned to strategic business priorities • Provide architectural leadership across major Finance and Logistics programmes • Act as a senior … translate business strategy into clear technology direction and outcomes • Experience influencing senior technical and non-technical stakeholders • Strong understanding of finance and or logistics systems and how they integrate across wider architecture • Experience working on large-scale transformation programmes, with S/4HANA desirable but not essential • Previous leadership ...

core values: Confident, Dedicated, Responsible, Genuine. We are seeking Migration Solution Architect for a multiyear programme aimed at migrating policies from legacy systems to a new policy administration system managed by a third-party provider. The role requires not just oversight of the migration process but also … primary architectural interface between the business and third party. Challenge third-party proposals constructively and confidently Validate that integration requirements back into Internal systems (finance, digital, corporate platforms) are fully met. Stakeholder Management Work closely with the Senior Architect and broader architecture community. Engage confidently with senior stakeholders, delivery ...

Role Youll 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 youll sit at the intersection of engineering, architecture ...

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 ...

work will focus on building solutions from the ground up. This could include developing agent-facing web applications, automating case processing, or creating intelligent systems that triage and manage communications. You'll work with cloud-native technologies and APIs, while also applying automation approaches such as RPA where legacy systems require it. You'll be part of a highly collaborative environment, working closely with Product Owners, Business Analysts, and Test Engineers to understand problems and deliver the right solutions. Alongside this, you'll contribute to code reviews, improve engineering practices, and support junior engineers through mentoring ...

guiding the architectural vision across our Infrastructure business. This role sits at the heart of a product-led technology organisation, ensuring that our systems and platforms not only support current business needs but are also built to scale and evolve with future demands. You'll be the strategic mind … behind long-term technology roadmaps, aligning them with enterprise architecture and the wider technology strategy. Whether it's rationalising legacy systems or guiding future investments, your focus will be on creating a technology landscape that's efficient, secure, and ready for growth. Location: UK-based hybrid role ...

with long-term sustainability and compliance. Facilitate collaboration across technical and non-technical stakeholders. Promote user-centered, iterative, product-led approaches in a legacy environment. Requirements: Experience managing developer infrastructure products, cloud technologies (AWS/Azure), and commercial services. Skilled in Agile …/Lean practices in engineering contexts. Strong user-centered product development mindset. Effective prioritization, communication, and stakeholder management skills. Comfortable navigating legacy systems, complex priorities, and incomplete information. ...

will assume day-to-day ownership of the firm’s infrastructure estate. With a clear mandate to migrate from on-premise legacy systems to a cloud-first model, this role demands both the practical expertise to manage existing environments and the vision to drive a modern, secure … working and many, many more perks! Senior Cloud Infrastructure Engineer – Key Skills: A minimum of 10 years’ experience in an infrastructure engineering or senior systems administration role, ideally within professional services i.e. legal services Demonstrated experience with Broadcom VMware Cloud Foundation and vSphere, including the ability to manage, optimise ...

Reducing operational effort through intelligent automation, improving speed, accuracy and customer experience Collaborating with engineering and IT teams to modernise legacy systems and embed AI into core platforms Your Skills and Experience Strong commercial experience delivering AI, machine learning or data science solutions into production Hands … generative AI and NLP use cases Strong programming skills in Python, with working knowledge of SQL and TypeScript Experience building scalable, well governed AI systems in complex or regulated environments Confidence working across multiple projects and translating business problems into technical solutions A proactive, self directed approach, comfortable owning ...

experienced Project Manager to lead the delivery of a major Housing Management System (HMS) transformation programme. The project will replace multiple legacy systems with a modern cloud-hosted platform, improving services, data quality, compliance, and customer experience for over 15,000 households across Portsmouth. Key Responsibilities Lead … housing regulatory requirements. Essential Experience Proven experience delivering complex IT and digital transformation projects, ideally within Housing or Local Government. Experience with Housing Management Systems such as NEC Housing, Microsoft Dynamics 365, or similar enterprise platforms. Strong background in SaaS implementations, data migration, supplier management, risk management, and stakeholder ...

platform from the ground up. We’re working with a business in the middle of a high-impact data transformation—moving away from legacy constraints towards a scalable, cloud-first architecture. They’re looking for a Principal Data Engineer to take a leading role in that journey. This … skills in Python and SQL Hands-on experience with Databricks, Azure, and GCP/BigQuery Proven ability to work across both legacy systems and modern cloud environments Key Skills DevOps mindset – you automate wherever possible and write clean, testable code Pragmatic approach – focused on delivering value without ...