11 of 11 Remote/Hybrid 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 ...

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 It’s their second-largest cost after payroll — yet the entire category is still running on legacy systems and outdated assumptions.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 ...

physical industries. While much of the tech world focuses on social apps, this company is tackling the "societal problem" of inefficient legacy systems in energy, logistics, and manufacturing. What makes this role unique is the "AI-first" development philosophy . You won't just be writing boilerplate … workflows using tools like Dagster and Temporal. Validate and harden accelerated workflows, ensuring generated code meets production standards. Implement resilient connectors for APIs, file systems, and enterprise platforms. Integrate new and existing capabilities into reliable, monitored production systems. Champion the use of AI-assisted tools to plan, scaffold ...

data centres and cloud environments. Key focus areas include: Leading the migration from Nomad to Kubernetes across a hybrid infrastructure environment Designing highly available systems that support real-time trading operations Expanding the firm's cloud footprint (AWS/Azure/GCP) while maintaining on-prem capabilities Owning projects … from design through production What you'll need: Production experience with Kubernetes (EKS/AKS/GKE or bare-metal) Strong Linux systems background; Windows experience is beneficial Track record delivering cloud migrations and managing hybrid environments Experience supporting mission-critical, highly available systems What makes this different ...

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 ...

data and analytics services. You’ll have the opportunity to: Own and shape the QA approach from the ground up, expanding coverage across existing systems and defining future standards Lead testing strategy across front-end, back-end, integration, and security Drive automation and scalability , reducing manual QA through robust … code approaches Coach and mentor engineers through pairing, code reviews, and promoting meaningful test coverage Ensure reliability and security in mission-critical, data-driven systems that directly impact low-income families This role is open to mid-level through to senior engineers — mindset and motivation matter more than ticking ...

+ 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 ...

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 ...

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 ...