1 to 25 of 44 Permanent Legacy Systems Jobs in London

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 ...

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 ...

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 ...

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 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 ...

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 ...

brand-new senior IC role within a growing international design team. You’ll play a key role in reimagining legacy systems into a modern web platform, shaping intricate workflows, influencing product direction, and having a genuine impact on how specialist users perform their jobs. This is proper … genuinely enjoys untangling complexity - you light up when faced with messy, multi-step workflows and take pride in bringing clarity and structure to challenging systems Someone who is deeply curious about users - you don’t jump to solutions; you immerse yourself in the problem space, especially where access ...

loading into Workday Ensure data quality, validation and reconciliation across all stages of the programme Manage data mapping and transformation from legacy systems Own Workday to payroll data requirements, ensuring accurate downstream integration Work closely with HR, Payroll, Finance and technical teams to gather and validate requirements ...

insurance broker to help recruit for an IT Project Manager to lead the delivery of a new insurance system and decommissioning of the legacy system. This will initially be a 6 month Fixed Term Contract with a maximum salary of up to £90,000 per year plus their ...

shared outcomes. Manage external partners and, where relevant, regulators to support improvement goals. Problem Solving & Innovation Tackle systemic constraints such as legacy systems, policies, and skills gaps. Sponsor experimentation, pilots, and measured innovation to unlock value. Risk, Security & Ethics Sponsor by-design controls in new processes. Ensure ...

that—making instant cross-border payments a reality. We’re building a new kind of payments network from scratch. No legacy systems, no tech debt. Just a clean slate, strong vision, and very high standards. We’re backed by deep industry experience and are building a small … turn AI into revenue This is a hands-on, high-impact engineering role . You’ll ship fast, experiment constantly, and own real systems that affect company growth. What We're After You are an engineer first . But you’re also fascinated by AI, automation, and building systems ...

exchange integrations, building resilient real-time pipelines that process market data at scale, designing infrastructure for performance and reliability, and modernizing legacy systems that underpin a platform millions depend on daily. The work spans the full technical stack from data ingestion and processing architecture to infrastructure optimization … 8+ years backend development experience with demonstrated technical leadership as Lead/Staff/Principal Engineer Deep expertise building and operating large-scale distributed systems in production Polyglot engineering background; strong proficiency in Node.js or Golang preferred Hands-on experience designing and scaling modern database architectures (SQL and NoSQL ...

specialist Information Governance Subject Matter Expert, providing assurance, guidance, and IG oversight across all workstreams and supporting the safe transition from legacy systems to the new EPR. The postholder will be expected to take the lead on all IG related activities across the EPR programme lifecycle, collaborating … applying it to digital and clinical workflows. Substantial management experience at a senior level Desirable Previous experience of working directly with relevant EPR systems (e.g., Cerner, Epic, RiO) Experience of multi-Trust or regional IG collaboration. Knowledge and Skills Essential Extensive knowledge of Information Governance and Data Protection within ...

underpins Outsmart’s crowdsourcing operations – a mature, revenue-generating system that has evolved over years and continues to scale. If you enjoy owning real systems, thinking architecturally, improving legacy code thoughtfully rather than rewriting it, and being trusted to deliver without heavy supervision, this role will feel … unusually well-matched. The role As Senior Fullstack Software Engineer, you will help design, build and maintain the production systems that power Outsmart’s platform. You’ll work closely with our CTO, operating as a high-agency individual contributor with genuine ownership across backend systems, infrastructure and platform ...

risks, progress, and outcomes to senior stakeholders. They will act as the central driver for testing across Global Markets, including fixed income flows, legacy system decommissioning, and migration from Medusa to Saturn (settlements). While testers will perform much of the execution, this role remains actively involved ...

Manager to spearhead "New Logo" expansion into the UK & Ireland Tier 1 Main Contractor market. You will move customers from fragmented legacy systems to a unified, "Office-to-Site" digital workflow that mitigates risk and drives ROI. The Role Target Market: Exclusively focused on securing new enterprise ...