1 to 25 of 108 Remote/Hybrid Legacy Systems Jobs in the UK

Programme Housing System Manager

Hiring Organisation
E Personnel Recruitment
Location
Portsmouth, Hampshire, England, United Kingdom
Employment Type
Contractor
Contract Rate
£300 - £400 per day
Programme Manager – Housing Systems Transformation Location: Hybrid – Portsmouth Duration: April 2026 – March 2028 Working Pattern: 4 days per week (8.00 am – 5.00 pm) Rate: £350 – £400 per day PAYE A major housing provider in Portsmouth is embarking on a significant transformation programme, replacing multiple legacy systems … reporting Lead multi-workstream delivery covering system configuration, integrations and environment management Oversee complex data cleansing and migration from multiple legacy housing systems Manage integrations across housing, repairs, finance, community safety and corporate platforms Lead testing cycles including System Integration Testing and User Acceptance Testing Drive organisational ...

Senior Developer - Python

Hiring Organisation
Greenfield I T Recruitment
Location
Leeds, West Yorkshire, England, United Kingdom
Employment Type
Full-Time
Salary
£50,000 per annum, Inc benefits
best practices for scalability, resilience and security Contribute to CI/CD pipelines and deployment workflows Embed monitoring, logging and observability within cloud-hosted systems Legacy Transition Support phased migration away from the existing PHP platform Provide technical oversight during system replacement and integration Reduce technical debt … clean architecture principles Mentor junior developers where appropriate Contribute to Agile ceremonies and cross-functional collaboration Essential Experience Strong commercial experience developing backend systems in Python Experience designing and implementing RESTful APIs Proven experience building and deploying applications within AWS (e.g. Lambda, ECS, API Gateway, CloudWatch, DynamoDB, Cognito ...

Head of Engineering

Hiring Organisation
Zeus® | AI-Powered Logistics
Location
City of London, London, United Kingdom
expertise and state-of-the-art technology. The Opportunity Zeus Labs is building the execution intelligence layer for enterprise logistics — AI that turns ERP systems and tables into self-optimising operations. You will own development and maintenance of the platform that compresses hours of manual coordination into an automated … driven consolidation, touching millions of shipments annually for large manufacturers and distributors moving goods across continents. This is a rare role: production-grade AI systems (LLMs + combinatorial optimisation models) meeting enterprise integration reality (SAP ECC/S4, legacy TMS/WMS, webhook chaos). You will ...

Workday Data Lead

Hiring Organisation
Sanderson Recruitment
Location
South West, United Kingdom
Employment Type
Contract, Work From Home
Contract Rate
£600 - £650 per day
which will take ownership of data migration activities - there will be a lot of work which is extracting data out of legacy systems through cleansing, transformation, mapping and loading into Workday. Workday Data Lead, key experience & skills: Extensive experience leading data workstreams on multiple Workday implementations Strong … technical, data background - migration and technical data roles Extracting and transforming HR and Payroll data from legacy systems Expertise in data mapping for migration Advanced SQL skills and experienced with ETL processes Excellent understanding of Workday data structures Ability to work with non-technical and senior stakeholders ...

Lead Software Developer (Laravel, Vue

Hiring Organisation
Ernest Gordon Recruitment
Location
Enfield, London, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£85,000
North London office throughout the year. You'll take ownership of the technical direction, guiding the transition from legacy PHP systems to a modern, scalable architecture using Laravel, InertiaJS, and Vue 3. This position is ideal for an experienced Lead Software Developer who is ready to move … beyond maintaining legacy systems and wants to build something modern, meaningful, and impactful. The Role: Lead and mentor a small team while remaining hands-on with full-stack development Maintain and support existing legacy PHP systems while overseeing the build of a new platform ...

Project Manager; Digital Transformation; London WC2; £70k

Hiring Organisation
Langley James Limited
Location
South West London, London, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£70,000
Central London base with 2 days per week remote work . Strategic Roadmap: Own the end-to-end shutdown of legacy systems and the rollout of new Cloud -based booking platforms . Legacy Building: This isn't just maintenance; it's a total Digital Transformation … prestigious global membership body with a history of supporting international initiatives . They are currently moving away from fragmented legacy IT systems toward a unified , high-performing digital ecosystem . With a massive global user base , they offer a collaborative environment where technology is viewed ...

Microsoft D365 BC Systems Manager

Hiring Organisation
Scouts
Location
Lancing, West Sussex, South East, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£55,000
Title: Microsoft D365 BC Systems Manager Salary: £59,103 per annum, Band H, Level 3 - Inclusive of a Market Supplement Location: Scout Store, Lancing, West Sussex, BN15 8UG Contract Type : Permanent Working Hours : 35 - Hybrid working with two days a week in Lancing and as required. About the role … looking for an experienced and practical Microsoft D365 Business Central Systems Manager to take ownership of our core business systems. This is a hands-on role where you'll make a real difference, keeping our systems running smoothly and helping the business work better every day. ...

Systems Configuration manager

Hiring Organisation
Indotronix Avani UK Ltd
Location
Glasgow, Lanarkshire, Scotland, United Kingdom
Employment Type
Contract
Contract Rate
£540 per day
Contract: 12 months Location: Hybrid Glasgow (2 days per week on site) IR35: Inside IR35 Security Clearance: BPSS required We are seeking an experienced Systems Configuration Manager to support a major transformation programme within a large, complex Intelligent Transport Systems (ITS) environment. This role sits at the intersection … legacy systems, configuration management, and large-scale change , helping to baseline, rationalise, and transition long-established system configurations into a new, modernised systems estate. The Role Analyse and understand complex, long-standing system configurations (old) Capture, document, and structure configuration data into a clear, manageable format ...

Technical Architect - Cloud Migration

Hiring Organisation
Client Server
Location
North London, London, United Kingdom
Employment Type
Permanent, Work From Home
Technical Architect London/WFH to £135k Do you have experience of transforming legacy systems into modern, cloud based architectures? You could be progressing your career at a well established consumer facing financial services company that help people to manage debt, as they go through a technical … Technical Architect you will be the architectural design authority across direct-to-customer financial wellbeing offerings including modernisation of the CRM, workflow systems and data platforms, building in scalability and operational excellence and integrating with partners, data/insight providers and agentic systems. You will collaborate across the tech ...

Data Migration Consultant

Hiring Organisation
Kinetech Recruitment
Location
Milton Keynes, Buckinghamshire, South East, United Kingdom
Employment Type
Permanent, Work From Home
fast-growing, acquisition-led organisation. Your core mission will be to migrate operational (CRM) and in time, finance data from multiple legacy systems into Microsoft Dynamics, repeatedly, reliably, and under pressure. You will work across: Bespoke, undocumented, and at times, home-grown systems SaaS platforms (e.g. … with minimal hand-holding, in a demanding BAU + project environment. What Youll Be Doing For each acquired business, analyse legacy source systems (often undocumented) Understand and interrogate data models at source and target (D365/Dynamics) Perform source-to-target mapping Extract, cleanse, transform, and load ...

IT Project Manager – Housing Management System (HMS)

Hiring Organisation
E Personnel Recruitment
Location
Portsmouth, Hampshire, England, United Kingdom
Employment Type
Full-Time
Salary
£350 - £400 per day
Project Manager to lead a major Housing Management System (HMS) transformation programme. This is a significant transformation initiative replacing multiple legacy housing systems with a single, modern, cloud-hosted Housing Management System. The new platform will support over 15,000 households and will play a key role … link between Housing, IT & Digital, Data, Finance, Procurement, Governance and external suppliers Overseeing data cleansing and migration from multiple legacy systems Managing integrations with repairs, finance, community safety and corporate systems Leading system integration testing (SIT), user acceptance testing (UAT), defect management and go-live readiness ...

IT Project Manager HMS - Data Migration - PT 4 days

Hiring Organisation
Hays Specialist Recruitment Limited
Location
Portsmouth, Hampshire, England, United Kingdom
Employment Type
Contractor
Contract Rate
£400 - £450 per day
will be working for Portsmouth Homes, who are embarking on a major transformation of its Housing Management services, replacing a complex mix of ageing systems with a single, modern, cloud-hosted Housing Management System (HMS). This high-profile project will play a significant role in improving services … engagement where required, ensuring supplier deliverables meet contractual expectations. Oversee all technical and functional workstreams, including data cleansing, migration from multiple legacy systems, integrations with Repairs, Community Safety, Finance and corporate platforms, environment management, and configuration. Manage testing cycles end-to-end, including SIT, UAT, defect tracking ...

Senior SAP FI CO Consultant - Managed Service Support

Hiring Organisation
Recruitment Revolution
Location
Birmingham, West Midlands, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£80,000
/4HANA - not just today, but for whats coming next. As a Senior SAP FI CO Consultant , you wont be firefighting legacy systems or stuck in narrow project silos. Instead, youll work at the heart of modern SAP finance, helping clients adopt a true cloud-first mindset … calibre SAP Finance Consultant to join our Managed Services team in a strategic, cloud-first role. This position goes beyond legacy project systems, focusing on shaping the core financial architecture of SAP S/4HANA Public and Private Cloud environments. As a Senior Consultant, youll ...

Lead Salesforce Engineer

Hiring Organisation
Canada Life
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
Competitive salary
community of practice and staying current with Salesforce platform evolution Provide technical leadership across dependencies where Salesforce is integrated with multiple legacy systems, with proven ability to drive technical strategy and resolve integration challenges. Monitoring and troubleshooting: ability to implement monitoring, logging and proactive issue resolution across … best practices Proven track record of working with Salesforce as part of a wider integrated IT estate, including legacy and external systems using a range of integration tools and patterns Experience with Salesforce DevOps and CI/CD tooling Strong understanding of Salesforce security management, data management ...

Data Migration Engineer - Outside IR35 - Remote

Hiring Organisation
Tenth Revolution Group
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£400 - £600 per day
large-scale ERP transformation initiative. This role is responsible for planning, executing, and validating the migration of data from multiple legacy systems into a new enterprise platform. The successful candidate will take full ownership of end-to-end migration activities, ensuring data accuracy, integrity, compliance, and traceability … throughout the migration lifecycle. Key Responsibilities Analyse legacy system data structures and define detailed data mapping rules aligned with the target ERP data model. Design, develop, and execute ETL workflows for data extraction, transformation, and loading activities. Plan and conduct trial migrations, validate outputs, and reconcile migrated data ...

Software Development Engineer

Hiring Organisation
MK Test Systems
Location
United Kingdom
Software Development Engineer MK Test Systems develops automated electrical test solutions where software correctness, maintainability, and long-term support are critical. As part of the Halma Group, we combine the stability of an established engineering business with ongoing investment in new platforms and technologies. In this role, you will … work on a mix of modern service-based systems and established WPF applications that interface directly with custom hardware. You will contribute to architectural decisions, write high‐quality C#, WPF and web technologies to help guide the evolution of systems that are actively used in demanding industrial environments. ...

Developer (MS) (18 Months FTC)

Hiring Organisation
London Borough of Barnet
Location
Barnet, London, United Kingdom
Employment Type
Contract
Contract Rate
£56376 - £61653/annum
ensure performance and reliability. - Monitor solutions postdeployment and proactively resolve issues, performance problems or system changes. - Integrate Microsoft solutions with legacy systems and external APIs to ensure a joinedup technology estate. - Identify opportunities to use AI, machine learning and advanced analytics to support smarter service delivery. - Work ...

Senior Full Stack Developer (Python/Vue.js)

Hiring Organisation
Quast Ltd
Location
Leeds, Yorkshire, United Kingdom
Employment Type
Permanent
Salary
GBP 50,000 - 75,000 Annual
experience working with NHS Digital, NHS Trusts, or Health Tech vendors is highly desirable. Enterprise Patterns: Experience with event-driven architectures or complex Legacy system modernisation. ...

OR22564- OCR Project Manager (SAP S/4HANA & Ariba)

Hiring Organisation
Aatom Recruitment
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£500 - £550 per day
Ariba environment. Role Overview You will be responsible for delivering a controlled and effective migration from legacy OCR and document-processing systems into the Council’s new SAP landscape. The role will focus on ensuring seamless system integration, improved controls, and the realisation of efficiencies across Finance … London to support delivery and stakeholder engagement. A key element of the role will be change management , ensuring successful adoption of new processes and systems across internal teams and external suppliers. Key Responsibilities Lead the end-to-end migration of OCR and document-processing activities into SAP S/ ...

Cloud Engineering Manager

Hiring Organisation
Gold Group
Location
Epsom, Surrey, South East, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£80,000
configuration design documentation (LLD) for proposed solutions Azure tenancy administration Implementation of cloud security infrastructure and defined security policy Migration of legacy systems to Azure cloud platform SQL Database Infrastructure administration on-prem and cloud deployments Azure capacity planning and Disaster Recovery Storage lifecycle management including blob … operational monitoring platforms Maintain Infrastructure diagrams In conjunction with the change manager ensure changes and maintenance windows are effectively enacted Maintain transitional legacy physical and virtual infrastructure assets (Server & Networking) Team management via work allocation, regular meetings, conduct performance reviews measuring performance against agreed objectives and mentoring team ...

SAP S/4HANA Finance Group Reporting Lead

Hiring Organisation
DXC
Location
City of London, London, United Kingdom
Employment Type
Permanent, Work From Home
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 ...

Developer (AI/RPA) (18 Months FTC)

Hiring Organisation
London Borough of Barnet
Location
Barnet, London, United Kingdom
Employment Type
Contract
Contract Rate
£56376 - £61653/annum
bring: - Experience designing and configuring RPA workflows, bots and automation solutions - Experience developing and maintaining automated pipelines for AI tools - Ability to integrate multiple systems and applications using APIs, JSON, XML, CSV, or other data interchange methods. - Knowledge of database environments (e.g., MS SQL, Dataverse, OneLake). - Experience working … approaches including unit, integration and performance testing. - Monitor automated solutions, proactively resolving issues and optimising performance. - Design solutions that integrate with legacy systems and external APIs to ensure interoperability and a smooth user experience. - Work in an agile, multidisciplinary environment, contributing to DevOps practices, version control ...

Senior AI and Automation Engineer

Hiring Organisation
Binnies UK Ltd
Location
Redhill, Surrey, South East, United Kingdom
Employment Type
Permanent
Embeddings, vector stores, and evaluation Guardrails, rate limiting, and failure handling Human-in-the-loop workflows Integration & automation Integrating AI into existing enterprise systems Automating end-to-end workflows (not just isolated tasks) Working with legacy systems and imperfect data You understand security, permissions, and data ...

Backend Engineer

Hiring Organisation
Dex
Location
London Area, United Kingdom
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 ...

Java Developer with SQL & GIT

Hiring Organisation
Randstad Technologies Recruitment
Location
City of London, London, United Kingdom
Employment Type
Permanent
Salary
£80000 - £85000/annum Negotiable
business as usual" role-you will be a key architect in re-engineering a mission-critical trading platform, migrating legacy systems into a cloud-native, microservices architecture. The Environment Location: Hybrid (3 days in the City of London). Type of Role: Permanent Focus: Electronic Trading, Messaging ...