1 to 25 of 64 Legacy Systems Jobs in London

Senior Software/Data Platform Engineer to help evolve a large-scale financial data platform. The environment includes both long-standing enterprise systems and modern AWS cloud services. The platform handles high-volume structured data and supports internal systems and customer-facing products.A big part of the role … involves working with large SQL Server environments, so strong SQL skills are essential. You'll help modernise core systems, improve performance and reliability, and build scalable backend and data services.This role suits engineers who are comfortable working across legacy and modern architectures and who have strong experience ...

across functional workstreams, ensuring data meets architectural, compliance, and governance standards. Key Responsibilities Extract and prepare HR and employee data from legacy systems for migration into Workday Transform, cleanse, and validate datasets to meet agreed standards and Workday requirements Conduct data gap analysis and support remediation … delivery Experience/Knowledge needed: Experience of working with the HR function Excellent abilities when it comes to extracting data from legacy systems, cleansing data, validating data, transforming data and preparing to hand over to the IMPL Data lead. Demonstrable HR data architecture experience Identify and analyse ...

across functional workstreams, ensuring data meets architectural, compliance, and governance standards. Key Responsibilities Extract and prepare HR and employee data from legacy systems for migration into Workday Transform, cleanse, and validate datasets to meet agreed standards and Workday requirements Conduct data gap analysis and support remediation … delivery Experience/Knowledge needed: Experience of working with the HR function Excellent abilities when it comes to extracting data from legacy systems, cleansing data, validating data, transforming data and preparing to hand over to the IMPL Data lead. Demonstrable HR data architecture experience Identify and analyse ...

build, and optimise enterprise-scale data solutions, focusing on Databricks and cloud-based engineering. You’ll lead the migration of legacy Oracle systems to a scalable, cloud-native environment, ensuring high-quality pipelines and models that support analytics, regulatory reporting, and business decision-making. Key Responsibilities Lead … Python (or other programming languages). Proven experience leading data engineering teams and delivering enterprise-scale solutions. Experience migrating data from legacy systems (Oracle or similar) to cloud environments. Strong analytical, problem-solving, and communication skills with the ability to explain technical concepts to non-technical stakeholders. ...

advanced data pipelines with Python, SQL, Spark/PySpark and Delta Lake. Champion strong data quality, governance and observability practices. Modernise legacy systems and support large-scale migrations into Azure. Provide technical leadership, set engineering standards and contribute to architectural decisions. Mentor engineers and foster a culture ...

advanced data pipelines with Python, SQL, Spark/PySpark and Delta Lake. Champion strong data quality, governance and observability practices. Modernise legacy systems and support large-scale migrations into Azure. Provide technical leadership, set engineering standards and contribute to architectural decisions. Mentor engineers and foster a culture ...

closely with Data Scientists, Analysts, and Software Engineers to deliver high‐impact projects. Contribute to the evolution of the data architecture , including modernising legacy systems. Support CI/CD, Infrastructure‐as‐Code, and best‐practice engineering standards. Ensure governance, security, and compliance across all data assets. Essential Skills ...

background/experience- 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 Salesforce particularly Service Cloud, Experience Cloud, and Public Sector Solutions. Strong grasp of Data Cloud, MuleSoft … Experience with CI/CD pipelines and DevOps tooling (e.g., Copado, Gearset, Git-based workflows) Experience integrating Salesforce with ERP, data platforms, or external systems Strong stakeholder management and communication skills Desirable Certifications Salesforce Platform Developer II OmniStudio Developer/Consultant Application Architect Balances hands-on engineering with strategic ...

observability, ensuring data is accurate, timely, and fit-for-purpose for analytics, BI, and operational use cases. Drive the modernization of legacy systems, leading the migration of data infrastructure to Azure with minimal disruption and long-term scalability. Act as a technical authority on Azure-native data ...

platform. This role combines hands-on backend development, database work, operational support, and system modernisation, making it ideal for someone who enjoys understanding complex systems and improving them over time. Key Responsibilities Maintain and enhance a Java monolithic application with an Oracle PL/SQL database Pair with existing … stakeholders to improve the overall data and platform architecture Required Skills & Experience Strong experience as a backend software developer Experience working with Java-based systems Solid problem-solving and debugging skills Experience working with databases and SQL Experience with test-driven development (TDD) Experience working in Agile development environments ...

observability, ensuring data is accurate, timely, and fit-for-purpose for analytics, BI, and operational use cases.• Drive the modernization of legacy systems, leading the migration of data infrastructure to Azure with minimal disruption and long-term scalability.• Act as a technical authority on Azure-native data ...

.NET Ecosystems Guide the integration of AI/ML pipelines into enterprise‐scale .NET Core applications and service‐oriented architectures. Modernize legacy systems through microservices, REST/gRPC APIs, and event‐driven architectures (Azure Service Bus, Kafka). Implement secure DevSecOps practices—SonarQube, Checkmarx, Vault, Azure ...

functional specifications for WRICEF objects relating to reporting, interfaces, and reconciliations. Manage data migration of GL balances, open items, and consolidation structures from legacy systems. Run at least two full mock close cycles prior to go-live, ensuring reconciliation of trial balances and intercompany eliminations. Ensure integration with ...

Copilot and emerging AI/ML solutions. Lead data platform modernisation initiatives, including optimisation of existing environments and supporting transitions from legacy systems to cloud-based solutions. Provide clear technical guidance to cross-functional teams, translating complex data and AI concepts into actionable insights for a range … stakeholders. Monitor and optimise data systems to enhance performance, reliability, accuracy and operational efficiency. Support the integration of machine learning and AI solutions, ensuring ethical governance, ongoing monitoring and responsible deployment. Lead, develop and motivate a high-performing data team, fostering an inclusive, collaborative and continuously improving culture. Profile ...

Integrate SharePoint with Microsoft Teams, OneDrive, Purview, and other M365 services.3. Data Migration• Assess and map existing document repositories (file shares, legacy systems, third-party tools).• Lead migration planning, cleansing, mapping, and execution (using tools such as ShareGate, Mover, or native tools).• Develop and deliver ...

infrastructure topics, migration strategies and platform solutions, cloud native and hybrid. Support operational and engineering colleagues through identifying opportunities to simplify legacy systems, automate processes, and improve security and performance using cloud-native. Ensure compliance with relevant frameworks, including ISO 27001, PCI DSS. Support infrastructure capabilities internally … storage. Experience with Windows Relevant exposure to leading cloud providers, in particular AWS. Virtualisation, containerisation, orchestration and serverless architectures Evidence of successfully simplifying legacy infrastructure and migrating to hybrid and cloud-native platforms Awareness and use of architectural frameworks Reasonable Adjustments: Respect and equality are core values ...

Specialist will provide expert leadership and hands-on support to ensure the safe, accurate, and clinically robust migration of data from legacy systems into the new EPR and Archive solutions. Knowledge of mental health EPRs, specifically Carenotes and working in a Mental Health setting is core … Ability to evidence specialist knowledge acquired through substantial practical experience in complex digital or data-focused roles Desirable Training or certification related to clinical systems, EPR/PAS platforms Project/change qualifications (e.g., PRINCE2/Agile/Change Management) desirable. Knowledge and Skills Essential Significant experience supporting ...

Data Migration Officer will play akey role in ensuring the accurate and secure migration of HR and payroll datafrom legacy systems into the new HCM platform. You will work closely with HR,technology teams, third-party suppliers, and a dedicated project team to deliverhigh-quality data outcomes.This ...

Data Migration Officer will play a key role in ensuring the accurate and secure migration of HR and payroll data from legacy systems into the new HCM platform. You will work closely with HR, technology teams, third-party suppliers, and a dedicated project team to deliver high ...

responsible for: Designing and deploying efficient, resilient data pipelines within Azure Fabric Enabling the migration of data from legacy systems and cloud services into the new Azure-based architecture Working with technical and non-technical stakeholders to ensure data accuracy, completeness, and availability Embedding automation and observability ...

sized bank to work on their core data programme of work. The role involves mapping data form multiple sources, including legacy systems, to a Common Data Model, and then into various systems for reporting purposes etc. It is likely that you will have originally come from ...

Technical Leadership Own the architecture of the company's data platform, ensuring scalability, reliability, and security. Drive modernisation by transitioning from legacy systems to a lean, scalable platform. Act as a lead expert for technologies such as AWS, DBT, Airflow, and Databricks. Establish best practices for data ...

pain points Translate problems into data-driven workflows, working with engineers to extract and structure data from equipment and legacy systems Work with customers, from the C-Suite to operators on the line, to build bespoke applications Lead training sessions to ensure the deployed applications serve their ...

your career at the intersection of technology, mathematics, and finance Join an elite global trading firm where innovation drives everything — no legacy systems, no bureaucracy, just cutting-edge tech and world-class mentorship . You’ll work on greenfield projects from day one, collaborating with exceptional engineers … quants, and researchers to build the systems and models shaping the future of global trading. 🔧 What You’ll Do 🧠 Design and enhance advanced trading systems and analytics platforms 📊 Develop and implement your own quantitative models and research ideas 🤝 Collaborate closely with top technologists, quants, and portfolio managers 🚀 Learn ...

friction and scale outcomes You Will Need A proven background in RevOps or SalesOps, ideally within scale-up environments Hands-on expertise with CRM systems (HubSpot experience highly preferred) Strong analytical, systems, and automation skills A bias for action - pragmatic, adaptable, and outcomes-led The confidence … Direct impact on growth, working closely with C-suite High-trust, high-ownership role with no legacy systems to fix A values-led mission with real social impact Central London office with a team-first, feedback-friendly culture ...