51 to 75 of 347 Legacy Systems Jobs in London

design, build, and operate scalable data pipelines and data products, enabling a modern data mesh architecture. The role focuses on integrating legacy systems with cloud-native platforms to support analytics, reporting, and domain-owned data products. Primary Skills Strong experience with Databricks (Spark, PySpark/… engineering best practices. Key Responsibilities Build and maintain batch and streaming data pipelines from legacy mainframe DB2 and on‐prem SQL Server systems into an AWS‐based data lake. Implement real‐time ingestion using Confluent Kafka and land data in Amazon S3. Develop data transformations and analytics ...

needs of our customers.MongoDB Pre-Sales Solution Architects are responsible for guiding our customers and users to design and build reliable, scalable systems using our data platform. Our team is made up of seasoned technical sales professionals, software architects, entrepreneurs, and developers who take direct responsibility for customer success …/or popular programming languages (e.g. C/C++, Java, C#) in a professional capacityExperience designing with scalable and highly available distributed systems in the cloud and on-premDemonstrated ability to work with customers to review complex architecture of existing applications, providing guidance on how to improve by leveraging ...

drive significant advancements in our business operations and technology landscape. Our primary goal is to transition from our current reliance on legacy systems and specialized off-the-shelf tools to a more integrated, AI-driven, and data-centric operational model. Leveraging insights and guidance from our other … then build genuinely useful things on top of it. This is a two-sided role. On one side, you'll integrate: wiring third-party systems, internal apps and document storage into the environment we already have, setting sensible guardrails around access and cost, and adopting existing Group capability wherever ...

drive significant advancements in our business operations and technology landscape. Our primary goal is to transition from our current reliance on legacy systems and specialized off-the-shelf tools to a more integrated, AI-driven, and data-centric operational model. Leveraging insights and guidance from our other … then build genuinely useful things on top of it. This is a two-sided role. On one side, you'll integrate: wiring third-party systems, internal apps and document storage into the environment we already have, setting sensible guardrails around access and cost, and adopting existing Group capability wherever ...

collaborative and supportive working environment, and the opportunity to develop your career within our Technology & Transformation team while gaining hands-on experience across multiple systems, businesses, and technology disciplines. Here is a look at some of the things you will be doing Supporting technology implementations across Complii businesses, assisting … configuration and validation, and helping ensure new ways of working align with our Group-wide operating model Supporting data migration from legacy systems, gathering, cleansing, transforming, and validating data, assisting with system imports and reconciliation, and identifying and resolving data quality issues to support accurate and successful ...

migration, operational risk remediation, regulatory compliance, and platform modernization. As a pragmatic and hands-on architect, you will work within complex legacy ecosystems while implementing scalable, resilient, and efficient solutions. By collaborating with Product, Operations, and Engineering teams, you will ensure that transformation aligns with business priorities while … front-end technologies such as Angular Experience with CI/CD pipelines, Terraform, and containerization (Docker/Kubernetes) Ability to navigate legacy systems while promoting modernization Strong understanding of risk management, security, and compliance requirements Excellent stakeholder engagement and communication skills Nice to have Experience in financial ...

drive significant advancements in our business operations and technology landscape. Our primary goal is to transition from our current reliance on legacy systems and specialized off-the-shelf tools to a more integrated, AI-driven, and data-centric operational model. Leveraging insights and guidance from our other … then build genuinely useful things on top of it. This is a two-sided role. On one side, you'll integrate: wiring third-party systems, internal apps and document storage into the environment we already have, setting sensible guardrails around access and cost, and adopting existing Group capability wherever ...

agile sprints. Your software becomes the reference implementation for scalable GenAI in the enterprise. You codify patterns, shape internal tooling, and accelerate innovation—delivering systems that are battle-tested in production and scalable across industries. Who You Are:You are a systems-minded, AI-native engineer who ships … deeply with customer teams, diagnose root problems, and architect AI-powered workflows that run at scale. You don’t just debug code—you debug systems, context, and customer pain points. You will:Build solution-ready LLM-enabled applications that span backend logic, data orchestration, and front-end UI Operate ...

join a strategic application modernisation programme. This role sits within a technology team responsible for evolving critical business applications, supporting a transition from legacy desktop solutions to modern web-based and cloud-enabled platforms. The successful candidate will work across the full software development lifecycle, contributing … Ability to work independently in a fast-paced environment Collaborative mindset and willingness to mentor junior developers Comfortable balancing support of legacy systems alongside modernisation initiatives GCS is acting as an Employment Business in relation to this vacancy. ...

very important for this position. Must be an excellent problem solver and adept writing documentation for all projects. You ideally have worked on banking systems particularly Core Banking. Responsible for the development and delivery of new systems to automate and streamline processes required by different departments. To support … internal IT department with changes and upgrades to software platforms. To be primary contact for all technical questions relating to in-house bespoke systems and interfacing. Analysis of issues pertaining to problems or errors raised by in-house systems, i.e. CORE, SharePoint interface, Equation, Kondor, Eximbills ...

term technology strategy to meet the growing demands of the business. The Digital Technology Director will lead a dedicated technology leadership team (Head of Systems & Architecture, Head of Projects, Head of Data), manage relationships with third-party IT service providers and major software vendors, and oversee the deployment … commercial acumen and strategic foresight to balance innovation with ROI and future-proofing.Technology ExpertiseDeep expertise in enterprise architecture, including integration of legacy systems with modern platforms.Strong understanding of SaaS enterprise systems, cloud technologies, and data-driven ecosystems.Experience managing both legacy and modern technology environments ...

Developer - Cloud Platform & AI We're recruiting for a Senior Software Developer to join a small, highly capable technology team delivering a major legacy-to-cloud transformation. The business is moving its core booking platform to an Azure and modern .NET solution, while also building an AI-powered … Blazor experience. Strong Azure experience, including App Service or Container Apps, Azure SQL, API Management and Azure DevOps pipelines. Experience modernising legacy systems, ideally using strangler-fig or similar incremental migration approaches. Good understanding of REST API design, microservices and event-driven architecture patterns. Practical ...

Developer - Cloud Platform & AI We're recruiting for a Senior Software Developer to join a small, highly capable technology team delivering a major legacy-to-cloud transformation. The business is moving its core booking platform to an Azure and modern .NET solution, while also building an AI-powered … Blazor experience. Strong Azure experience, including App Service or Container Apps, Azure SQL, API Management and Azure DevOps pipelines. Experience modernising legacy systems, ideally using strangler-fig or similar incremental migration approaches. Good understanding of REST API design, microservices and event-driven architecture patterns. Practical ...

Automate legacy systems related to governance, risk, and compliance frameworks, including ISO 27001, PCI-DSS, DORA, UK Cyber Essentials, and relevant financial services regulations Engineer GRC workflows integrating ticketing, asset management, identity, and cloud platforms to support compliance by design Design and build scalable GRC architectures … Keywords Fintech Payments Industry Cybersecurity Compliance Frameworks ISO 27001 PCI-DSS DORA UK Cyber Essentials Financial Services Regulations Tools & Technologies AWS Cloud Platforms Ticketing Systems Asset Management Systems #J-18808-Ljbffr ...

government, healthcare, education, defence, etc.Familiarity with public sector regulations, compliance (e.g., GDPR, FOIA), and procurement processes.Knowledge of common public sector challenges: legacy systems, citizen engagement, case management, grants, licensing.Proficiency in key Salesforce architecture areas, particularly Service Cloud, Experience Cloud, and Public Sector Cloud.Public Sector Solutions Accredited Professional ...

services by containerising applications for Amazon ECS, removing legacy infrastructure dependencies and optimising services for cloud-native operation.Design and build resilient distributed systems by improving health checks, fault tolerance, observability and runtime behaviour to enhance service reliability and reduce operational incidents.Define and evolve the .NET migrations … professional experience developing applications with C# and .NET, alongside a solid understanding of software engineering principles and modern backend architecture.A good understanding of distributed systems, including resilience patterns, observability, scalability and performance optimisation.Experience designing reusable engineering patterns, frameworks or shared libraries that improve consistency and developer experience across multiple ...

containerising applications for Amazon ECS, removing legacy infrastructure dependencies and optimising services for cloud-native operation. Design and build resilient distributed systems by improving health checks, fault tolerance, observability and runtime behaviour to enhance service reliability and reduce operational incidents. Define and evolve the .NET migrations … experience developing applications with C# and .NET, alongside a solid understanding of software engineering principles and modern backend architecture. A good understanding of distributed systems, including resilience patterns, observability, scalability and performance optimisation. Experience designing reusable engineering patterns, frameworks or shared libraries that improve consistency and developer experience across ...

SwiftKey before joining us. You’ll work with him closely on the architecture: challenging decisions, shaping them, and turning ambitious AI ideas into systems that hold up in production. This is a hands‐on role. You’ll be in the code, the pipelines, the databases and the cloud infrastructure … production AI models. Work hands‐on across the codebase, data pipelines, databases and cloud infrastructure to improve performance, scalability and reliability. Assess existing systems against real requirements, including performance, freshness, reliability, security and cost, and shape a practical plan for change. Modernise constrained legacy components incrementally, behind ...

Software Engineer - Cumberland/FICCO Front Office Systems Software Engineer - Cumberland/FICCO Front Office Systems Job Location Greenwich Employment type Regular Department Technology Targeted Start Date Immediate DRW is a diversified trading firm with over 3 decades of experience bringing sophisticated technology and exceptional people together … place of high expectations, integrity, innovation and a willingness to challenge consensus. About the Team DRW C/FICCO Front Office Systems team intimately collaborates with traders to turn alpha signals, risk management, market visualizations and other trading-critical tools into scalable, performant and reliable production systems. We embed ...

recruiting on behalf of a well-established organisation in the financial services sector for an experienced HRIS Analyst to join their HR Systems team. This is an exciting opportunity to become part of a collaborative team at a pivotal stage in its HR technology journey. The organisation is implementing … Workday as its core HR platform, replacing multiple legacy systems with a single, integrated solution. You'll play a key role throughout the implementation and continue supporting, developing and optimising the platform once it's live. The Role As an HRIS Analyst, you'll support the ongoing ...

About Rippling Rippling gives businesses one place to run HR, IT, and Finance. It brings together all of the workforce systems that are normally scattered across a company, like payroll, expenses, benefits, and computers. For the first time ever, you can manage and automate every part of the employee … single system. About Rippling Rippling gives businesses one place to run HR, IT, and Finance. It brings together all of the workforce systems that are normally scattered across a company, like payroll, expenses, benefits, and computers. For the first time ever, you can manage and automate every part ...

term technology strategy to meet the growing demands of the business. The Digital Technology Director will lead a dedicated technology leadership team (Head of Systems & Architecture, Head of Projects, Head of Data), manage relationships with third-party IT service providers and major software vendors, and oversee the deployment … acumen and strategic foresight to balance innovation with ROI and future-proofing. Technology Expertise Deep expertise inenterprise architecture, including integration of legacy systems with modern platforms. Strong understanding ofSaaS enterprise systems,cloud technologies, anddata-driven ecosystems. Experience managing both legacy and modern technology environments ...

Business Unit: Cubic Transportation Systems Company Details: Responsible for delivery of Paginated and Crystal/BOBJ Reports as well as stored procedure development. The candidate will meet with the business users to qualify requirements for reports, create reports from scratch, and take existing reports and improve their performance. This … innovation and development whilst promoting and delivering best practice in the business intelligence field. This will also include the improvement of legacy systems whilst designing for the future by utilizing the latest tools, processes and disciplines in Business Intelligence. This position works under limited supervision and exercises ...

quality.Specific responsibilities are as follows:Engineering Leadership & DeliveryLead multiple engineering teams responsible for:Public-facing web platforms, customer-focused channels and digital services.Internal business systems and integrations.CRM and Dynamics-based solutions.Ensure predictable, high-quality delivery against agreed roadmaps and priorities.Balance pace, quality, and sustainability in a charity context.Establish clear … Dynamics-based solutions.Track record of improving engineering delivery, quality, and reliability.Familiarity with cloud-based platforms and modern integration patterns.Experience modernising legacy systems pragmatically.Proven experience leading continuous improvement initiatives across a complex organisation.Experience working in complex, regulated, or mission-critical environments.Strong analytical and problem-solving skills, excellent communication ...

data loaded into Workday, ensuring consistency with source systems.Engage regularly with clients throughout the project lifecycle, ensuring a smooth transition from legacy systems to Workday Financials.Manage multiple tasks with limited direction while keeping stakeholders informed of progress, risks, and issues.Participate in training and internal knowledge-sharing initiatives ...