76 to 100 of 277 Legacy Systems Jobs in London

decomposing workloads into independent steps orchestrated by managed workflow services and triggered by data events.Migration & Testing Experience: Experience with safely modernizing legacy systems using parity testing and incremental routing patterns.IaC & Containerization: Hands-on experience packaging runtimes into portable containers and provisioning cloud resources using modern Infrastructure ...

basic experience and willingness to learn required) What you'll gain The opportunity to shape products from an early stage rather than maintain legacy systems. Exposure to a unique combination of software engineering, science, AI and data platforms. Opportunities to grow into technical leadership, architecture or people leadership ...

Architecture to shape technical strategy and delivery plans Guide teams building and evolving AWS-native and cloud-based platforms, alongside legacy systems Set and uphold strong engineering standards across code quality, testing, CI/CD, observability and documentation Stay close to technical decisions through design reviews, architecture … Hands‐on experience using or introducing AI or ML tools within engineering teams Technical Foundations Solid understanding of cloud‐native architecture, AWS and distributed systems Proficiency in at least one modern programming language Strong grasp of system design and software engineering fundamentals Experience with Infrastructure as Code, CI/ ...

latest AI tools and models, partner technical teams, and early capability previews that the wider market does not. We are deploying production AI systems into the world's most complex organisations across Financial Services, Energy, and Healthcare. We exist to make AI a genuine competitive advantage for our clients … engagements at some of the most complex organisations in the UK. Technically, commercially, and in the room with engineering leaders who have built serious systems and are not easily impressed. What You Will Do Lead engagements that transform how enterprise engineering organisations build software - from discovery and assessment through ...

shipped production-grade platforms: the reusable foundations, tools, infrastructure, and workflows that help other teams shift faster and more reliably Taken AI and agentic systems from prototype to production, with a strong understanding of infrastructure, authentication, and observability Delivered on high-stakes consulting engagements across multiple language paradigms, stacks … record of understanding, assessing, and embracing new tooling and trends within the software industry Built or integrated AI/ML features into products and systems, including recommendation engines, NLP, computer vision, predictive analytics, RAG pipelines, and agents Successfully led modernisation and replatforming efforts to align legacy systems ...

Description We are seeking a hands-on Senior Technical Architect to design and lead end-to-end integration solutions across modern enterprise systems, cloud platforms, and supply chain logistics. Requirements Deep expertise in .NET Core, C#, MS SQL Server, RESTful APIs, and Azure Cloud architecture. Hands-on experience with … solutions within the Retail, CPG, or Supply Chain and Logistics sectors. Proven ability to drive CI/CD standards, reverse-engineer legacy systems, and oversee UAT and SIT defect analysis. Job responsibilities Drive end-to-end technical architecture and hands-on delivery using .NET Core, C# ...

Regions on both direct and indirect deals, supporting them during solutioning phases as well as during critical delivery phases. Whether modernizing legacy systems or building solutions from scratch, you will apply agentic AI to transform how projects are executed end-to-end. This is a unique opportunity … applications using autonomous and semi-autonomous agentic frameworks. Apply AI agents across all delivery phases: analysis, design, build, test, deploy, and operations. Modernise legacy applications using agentic AI for discovery, transformation, and refactoring. Define end-to-end architectures integrating traditional software, LLMs, vector stores, and orchestration. Drive ...

with a proven track record of driving large-scale digital transformation projects.Platform migration: Demonstrable experience in managing the complex transition from legacy systems to modern architectures.Cross-Functional Leadership: A deep understanding of how to seamlessly integrate Engineering and UX/UI disciplines, motivating teams without necessarily having … time. Opting out will not impact the outcome of the interview process" At WPP Enterprise SolutionsWPP Enterprise Solutions designs, builds, and operates the growth systems that competitive businesses rely on. In a world where Al is reshaping how companies drive growth, we lead clients in business transformation and marketing ...

design assessments Well Architected reviews and remediation plans that strengthen reliability security and performance. Support migration and modernization initiatives by assessing legacy systems planning cloud landing zones and guiding adoption of cloud native patterns that improve agility and reduce total cost of ownership over time. Facilitate ...

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. Your Role in the Team In this role ...

includes Spark and Presto over Hive and Iceberg tables, Velox as a shared execution layer, and an internal workflow authoring and scheduling platform. These systems evolved separately. As a result, engineers encounter different authoring models, operational practices, guarantees, and migration paths depending on the workload they are building. … define a coherent customer experience across batch and streaming, align the long-term platform strategy, and help teams move from legacy systems safely. Key Responsibilities You will work closely with engineering leaders across multiple organizations. Success will require technical judgement, a strong understanding of internal customers ...

Enterprise Solutions designs, builds, and operates the growth systems that competitive businesses rely on. In a world where Al is reshaping how companies drive growth, we lead clients in business transformation and marketing modernization, connecting strategy directly to execution. Our 12,000 experts in engineering and platforms, commerce, consulting … Enterprise Solutions by helping brands activate transformation through creativity and experience. Who We Are WPP Enterprise Solutions designs, builds, and operates the growth systems that competitive businesses rely on. In a world where Al is reshaping how companies drive growth, we lead clients in business transformation and marketing modernization ...

project lifecycle and experience of various project development methodologies (including Agile, Incremental and Waterfall)Comfortable with complex technical environments and legacy systems integrationExperience of code management tools such as git, bit bucket, svnUnderstanding of GitHub or other release pipeline toolsManaging 3rd partiesStrong time management & organisational skillsExcellent negotiation … time. Opting out will not impact the outcome of the interview process" At WPP Enterprise SolutionsWPP Enterprise Solutions designs, builds, and operates the growth systems that competitive businesses rely on. In a world where Al is reshaping how companies drive growth, we lead clients in business transformation and marketing ...

operate. We build intelligent agents that understand real-world workflows and execute them end-to-end — replacing manual processes and rigid legacy systems with adaptive, learning software. Founded in early 2024, Serval is already trusted by companies like Fox, Notion, Perplexity, Vercel, and Brex to automate high … agentic AI platform that turns natural language into production-grade workflows. Our agents don’t just respond to requests — they reason, take action across systems, and continuously improve with usage. What began with operational use cases has quickly evolved into a horizontal AI automation layer used across ...

applications, public-facing corporate sites, and dozens of internal bespoke web applications. Almost every person in the BBC uses at least one of our systems every week, and our audience-facing sites receive millions of views from the public every month. We’re looking for an experienced full-stack … React, Node.js and AWS is a bonus. Are you the right candidate Essential • Excellent PHP skills • Excellent experience designing and optimising relational database systems • Familiarity with frontend technologies such as HTML, CSS & JavaScript • Experience leading large/complex projects • Excellent communication skills with an ability to collaborate with colleagues ...

help banks, credit unions, and insurers design, launch, and evolve financial products dramatically faster than traditional methods. Our platform sits above existing core systems, enabling institutions to modernize without rip-and-replace, and to innovate without rebuilding from scratch. We serve 60+ financial institutions across North America, Europe … growth in 2023 and is profitable and scaling fast. Why This Role Exists Insurance organizations are facing increasing pressure to modernize legacy systems, accelerate product innovation, improve customer experiences, and respond to changing regulatory requirements. FintechOS enables insurers to navigate this transformation successfully. As our customer footprint ...

ownership from discovery through to production and continuous improvement. Help reimagine how modern institutional treasury works by replacing manual processes and legacy systems with intuitive software. Work directly with customers to understand their workflows, pain points and goals, using those insights to shape product and technical decisions. … Strong web and server-side engineering fundamentals, including component design, state management, APIs, relational databases, authentication and permissions. The ability to quickly understand unfamiliar systems and confidently trace behaviour across application, service and database boundaries. Exceptional customer empathy. You naturally put yourself in the customer’s shoes, seek ...

over 40 business-critical applications. Key Responsibilities Develop and maintain enterprise-grade Java and Angular applications. Contribute to the migration of legacy systems into modern Java/Angular solutions. Design, build, and optimise backend services using Java, Spring Boot, and SQL. Develop responsive frontend applications with Angular … complex application landscapes Stakeholder management and Agile/SAFe delivery experience Nice-to-Have MySQL PHP GitLab Jenkins GitLab CI Nx Experience modernising legacy applications #J-18808-Ljbffr ...

platform changes so teams can adopt new capabilities with confidence. Supporting the migration of payment services onto BT Pay and the retirement of legacy capabilities. Essential Skills/Experience To be successful in this role, you’ll bring: Product management experience taking digital or technical products from discovery … fintech, financial services or transaction processing. Platform integration, onboarding and adoption.Security, resilience, observability or operational performance in a regulated environment. Modernising legacy systems or migrating services to a new platform. Discovery, workshop facilitation and translating technical or user needs into product requirements. Our Package Tailored benefits make ...

with every interaction, helping organizations understand their customers, deliver better experiences, increase operational efficiencies, and build a lasting competitive advantage. Unlike legacy systems built to route and answer, or standalone agentic bot vendors built to deflect, Dialpad was built to resolve. Our AI agents and human agents … Dialpad’s native Salesforce integration, along with other critical apps. These integrations enable real-time automations and data transfers between Dialpad and key complementary systems, ensuring our mutual customers have a seamless unified experience. You’ll collaborate closely with engineering teammates, product leaders, business leaders, and external stakeholders, with ...

work on coding, debugging, and learning new software technologies. With progression in this track, the responsibilities expand to include leading teams, designing complex software systems, providing mentorship, and managing cross-functional integration. The more senior roles are responsible for defining the company's technological vision, making strategic decisions, driving … investment management with the industry's most comprehensive cloud‐native platform for institutional investors across global public and private markets. While legacy systems create risk, inefficiency, and data fragmentation, Clearwater's single‐instance, multi‐tenant architecture delivers real‐time data and AI‐driven insights throughout the investment ...

collaboration across networks, domains, and allies, while ensuring the data powering AI and advanced analytics remains trusted and protected. We don’t just defend systems; we deliver decision dominance. Our Purpose. Protect what matters most by enabling organizations to operate security in the most complex and high‐risk digital … environments where failure is not an option. Everfox is seeking a versatile AI Software Engineer who thrives in unfamiliar codebases, learns quickly, and improves systems across diverse, fast‐moving projects. You’ll build AI‐driven features, enhance engineering workflows using modern AI tools, and work across multiple teams ...

digitization of the business Drive transformation, define and agree target state architecture aligned with the overall organization and modernize legacy systems using new cutting-edge technology stack. Provide strategic direction and daily oversight to ensure technology delivery, alignment of resources with business requirements, and at the same … record. Demonstrate progression from a highly technical background, with deep knowledge of software development process and practices along with deep knowledge of architecture, complex systems and other key technology areas. It is also vitally important that this individual can balance the need to provide world class technology solutions with ...

hybrid basis. You will develop cloud-native applications on Azure using App Services, Functions and Logic Apps, while refactoring legacy systems for Azure modernization. The role requires hands-on C#, .NET, ASP.NET, MS SQL and Azure DevOps experience, plus familiarity with DevOps and Agile practices to accelerate ...

solution architects and insurance domain SMEs to craft tailored value propositions. Lead workshops, bids, and presentations focused on AI-led automation, data modernization, legacy system transformation, and cloud adoption. Position techno functional solutions in areas such as intelligent document management, telematics-based underwriting, fraud analytics, and digital claims ...