13 of 13 Permanent Legacy Systems Jobs in the City of London

Contract) We’re working with a technology-led company building a modern enterprise platform used by large organisations. The product replaces legacy systems with scalable, secure, and reliable software. This is an 8-week contract, outside IR35, fully remote, open to UK & EU-based engineers, paying … starting immediately. The Role You’ll be responsible for key backend systems that support enterprise, multi-user workflows, with a strong focus on scalability, security, and reliability. You’ll work closely with internal product and engineering stakeholders to turn evolving requirements into robust, production-ready systems. Responsibilities Build ...

international membership organisation operating within the healthcare education and research sector. This forward-thinking not-for-profit organisation is seeking an experienced Digital Systems Manager to join them during an exciting period of digital transformation. About the Organisation As a multidisciplinary membership organisation, they champion research, education, and knowledge … providing online learning resources to members worldwide. The role The organisation has invested significantly in digital infrastructure over recent years, replacing legacy systems with a modern, integrated tech stack centred around Salesforce and Fonteva. They have built a sophisticated member portal, integrated online payment systems ...

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 ...

trillion on benefits every year. It’s their second-largest cost after payroll — yet the entire category is still running on legacy systems and outdated assumptions. The space is primed for transformation: despite its scale, it’s been almost completely overlooked by AI-first startups. Incumbents — including … resident expert. You won't just be tuning hyperparameters in a notebook; you will be a core software engineer architecting the complex systems that make AI useful in production. In the immediate future, your time will be split between crafting complex AI processing architectures (40%) and hands-on data ...

contact between development, research, analysis, and operations teams. Coordinate multiple technical projects, ensuring priorities, timelines and resourcing stay aligned. Structure workflows, manage ticketing systems and monitor progress to keep delivery on track. Identify bottlenecks and inefficiencies, and implement practical process improvements. Balance the needs of legacy systems … from afar. Comfortable working full-time on-site in a smaller, agile environment. Desirable (not essential): Experience with project/ticketing tools, version control systems (e.g.?Git,?PlasticSCM,?Hg), and awareness of project management best practices or frameworks. What's on offer Competitive salary of £70k?-?£90k DOE?+ ...

contact between development, research, analysis, and operations teams. Coordinate multiple technical projects, ensuring priorities, timelines and resourcing stay aligned. Structure workflows, manage ticketing systems and monitor progress to keep delivery on track. Identify bottlenecks and inefficiencies, and implement practical process improvements. Balance the needs of legacy systems … from afar. Comfortable working full-time on-site in a smaller, agile environment. Desirable (not essential): Experience with project/ticketing tools, version control systems (e.g. Git, PlasticSCM, Hg), and awareness of project management best practices or frameworks. What's on offer Competitive salary of £70k - £90k DOE + ...

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 ...

+ bonus Hybrid - London (2 days onsite) We're hiring a Data Platform Lead to take ownership of an existing data warehouse and the systems around it. The platform is already in production and widely used. This role is focused on keeping it reliable, improving data quality, and developing … working with engineering teams to improve the quality of data coming into the warehouse. There's a mix of legacy systems and newer tooling following several years of organisational change, so the role involves untangling complexity rather than building everything from scratch. You'll need ...

platform for financial institutions. It helps asset managers and banks streamline operations, compliance, and reporting. The platform is recognised for modernising legacy systems and supporting multi-market investment management. Key Responsibilities: Oversee the functional quality and business fit of individual applications. Align priorities of different stakeholders ...

membership experience, whilst collaborating closely with leadership, engineering and platform teams. Operating at the intersection of commercial strategy and technology, you’ll simplify complex systems, establish scalable foundations, and build a cohesive product ecosystem that strengthens customer lifetime value globally. Role responsibilities: Define and deliver the global roadmap … engines. Partner with engineering, data, and regional teams to guide features from concept to launch across multiple countries. Simplify legacy or fragmented systems, establish clear baselines, and build a scalable, future‐ready loyalty framework. Use customer insights, behavioural data, and performance metrics to inform product decisions ...

designs. Confident communicator capable of explaining technical concepts to varied audiences and influencing decision‐making. Comfortable working across both legacy and modern systems, with a problem‐solving mindset and a methodical approach to delivery. Collaborative working style with a commitment to producing high‐quality, resilient solutions aligned ...

platforms, integrations, and enterprise architecture at a high level Why This Role? Sell a market-leading enterprise finance platform disrupting legacy ERP systems Join a collaborative, high-performance sales culture with strong technical support Own high-value, complex enterprise deals with strong earnings potential ...

servers (on VMware), and 1800 laptops. We also deliver remote access to network services via Citrix virtual desktops from legacy and new systems for up to 450 licensed users. MTVH currently operates its technology services across 3 main AD domains. There is a project in-flight … migrate required applications, data, systems and hardware assets to the (MTVH) AD domain. What you'll need to succeed An experienced enterprise Citrix SME and engineer, comfortable being the highest point of escalation for Citrix issues in a high uptime and change controlled environment. This is an operational role ...