151 to 175 of 200 Legacy Systems Jobs in England

IT Project Manager

Hiring Organisation
Opus Recruitment Solutions Ltd
Location
Exeter, Devon, England, United Kingdom
Employment Type
Contractor
Contract Rate
£400 - £500 per day
experience. The role is inside IR35 and you would be paid PAYE through us here at Opus.Skills required: - IT system implementation - ERP, Salesforce, Legacy system upgrade- IT Change & Transformation projects- Utilities sector experience is a plus ...

Algorithm Software Engineer

Hiring Organisation
Guidant Global
Location
Bristol, Somerset, United Kingdom
Employment Type
Contract
Contract Rate
GBP 65 Hourly
Engineer to play a pivotal role in a high-impact project. Youll collaborate with algorithm specialists and technical experts to modernise a critical legacy system by transforming a complex ADA codebase into MATLAB. This is an opportunity to work on cutting-edge technology that underpins national click apply ...

Lead Technical Architect

Hiring Organisation
TPXImpact Holdings Plc
Location
East London, London, United Kingdom
Employment Type
Permanent
Salary
£70,000
trust with senior stakeholders. About You Essential Strong experience designing architectures for complex solutions ensuring consistency with agreed requirements and standards Knowledge of enterprise systems, APIs/integration, cloud platforms (AWS, Azure, GCP), and data ecosystems Experience developing and reviewing architecture artefacts. Experience of architecture modelling (C4, ArchiMate … ability to advise on requirements management approaches and coordinate requirements prioritisation Strategic thinking ability to contribute to the development of strategies and policies Technology systems analysis ability to lead the analysis of IT system capabilities Governance and assurance ability to assure services and support clients to define governance User ...

Python/ Django Developer

Hiring Organisation
Morgan Hunt Recruitment
Location
City of London, London, England, United Kingdom
Employment Type
Contractor
Contract Rate
£700 - £750 per day
responsible for developing and improving a core Python/Django server-side application , ensuring robust integration with PostgreSQL , and supporting the modernisation of legacy systems. This is a high-impact role where your work will directly contribute to the stability, security, and efficiency of a vital public service. … Django application. Manage and optimise PostgreSQL databases, ensuring high performance and data integrity. Collaborate with cross-functional teams to support the modernisation of legacy systems. Write clean, maintainable, and well-documented code following best practices. Ensure compliance with security standards and contribute to risk mitigation. Participate in code ...

Lead Data Engineer

Hiring Organisation
Bibby Financial Services
Location
Banbury, Oxfordshire, South East, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£75,000
work revolves around designing, building and scaling production-grade data platforms in the cloud, not just writing ad hoc pipelines or maintaining legacy systems. If you've spent years turning raw, messy data into something reliable, performant and genuinely useful and you want more influence over how platforms … enterprise-scale databricks platform using modern data engineering tools and frameworks Building ingestion, transformation and validation pipelines across cloud data sources, APIs and operational systems Translating data architecture into executable build plans alongside the Data Architect Optimising data pipelines and processing workloads for performance, reliability and cost Embedding data ...

Python Data Engineer

Hiring Organisation
LTS Resourcing
Location
Luton, Bedfordshire, United Kingdom
Employment Type
Permanent
Salary
£55000 - £65000/annum + 15% bonus
responsibilities but not limited to as the Python Data Engineer: Build and maintain data pipelines and ETL processes Integrating legacy and modern systems Deliver data migrations, including mapping, transformation, and validation Ensure data quality, performance, and reliability Collaborate with technology and business stakeholders Skills and experience required … Python Data Engineer: Essential to possess strong Python development skills Solid SQL experience (e.g. SQL Server, Snowflake or similar) Proven experience integrating multiple systems Hands-on experience with legacy-to-new data migrations Experience working with large datasets, data warehouses, and batch processing Experience integrating REST APIs ...

Oracle Developer - Batch Processing

Hiring Organisation
Sanderson Government and Defence
Location
Newcastle Upon Tyne, Tyne and Wear, North East, United Kingdom
Employment Type
Contract, Work From Home
Contract Rate
£600 - £650 per day
resolving performance bottlenecks and production issues Working closely with infrastructure, testing, and operational teams to ensure stable deployments Supporting legacy and modernised systems within a secure central government environment Ensuring code quality, maintainability, and adherence to development and security standards Producing clear technical documentation and supporting knowledge … transfer About You Essential experience: Active SC Clearance Proven experience as an Oracle Developer on large-scale, enterprise systems Strong hands-on expertise in Oracle PL/SQL and SQL performance tuning Demonstrable experience with batch processing frameworks and scheduling Solid background in Pro*C development Experience supporting business ...

Senior Software Engineer - ATE

Hiring Organisation
Concurrent
Location
Colchester, England, United Kingdom
team. The Role We are looking for an experienced Senior Software Engineer – ATE to take a technical role in developing and maintaining automated test systems used to validate our advanced embedded computing products by operations. This is a key position in ensuring that every product meets the company … coverage of product functionality. • Analyse test results, investigate issues, and contribute to root cause analysis and continuous improvement initiatives. • Oversee legacy ATE systems, implementing upgrades and performance optimisations. • Mentor and support junior software and test engineers in best practices for software design, test automation, and coding standards. ...

Test Data Migration Analyst

Hiring Organisation
Uniting Ambition
Location
Manchester, Lancashire, England, United Kingdom
Employment Type
Contractor
Contract Rate
£450 - £470 per day
Manchester - Compulsory 2 days per week on-site ASAP Start Overview: My client is migrating customer and commercial data from legacy CRM systems to Salesforce CRM. The Test Data Migration Analyst will ensure migrated data is accurate, complete, and validated through testing cycles. Responsibilities: Analyse legacy ...

Senior Software Developer

Hiring Organisation
Oscar Associates (UK) Limited
Location
Manchester, North West, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£65,000
play a key role in shaping the next phase of their platform. This is a genuine opportunity to work on meaningful, high-traffic systems while still having a strong voice in technical decisions. The Role As a Senior Software Engineer, you'll be part of a cross-functional product … driven architecture React exposure is a bonus, but not essential Essential Experience Strong commercial experience with C# and .NET Experience building scalable, production-ready systems Comfortable working in Azure-hosted environments A pragmatic engineer who enjoys clean code and collaboration Someone happy to mentor and influence without being overly ...

Data Centre Analyst

Hiring Organisation
Stackstudio Digital Ltd
Location
Wokingham, Berkshire, South East, United Kingdom
Employment Type
Contract, Work From Home
Contract Rate
From £350 to £400 per day
with Azure cloud infrastructure and DevOps practices. Strong understanding of geospatial technologies (e.g., ESRI, QGIS, FME, GeoServer). Experience with legacy GIS systems (Intergraph, Smallworld) and data migration. Familiarity with AI/ML applications in geospatial data quality and analytics. Agile delivery experience and ability to lead ...

Data Migration Test Analyst

Hiring Organisation
Uniting Ambition
Location
Manchester, Lancashire, England, United Kingdom
Employment Type
Contractor
Contract Rate
£450 - £470 per day
Manchester - Compulsory 2 days per week on-site ASAP Start Overview: My client is migrating customer and commercial data from legacy CRM systems to Salesforce CRM.The Data Migration Test Analyst is responsible for providing independent assurance that all data migration transform logic is implemented exactly as defined ...

Data Analyst

Hiring Organisation
Hyde Group
Location
Dukinfield, Cheshire, England, United Kingdom
Employment Type
Full-Time
Salary
Competitive salary
functional operation of IFS ERP solutions. Data Analyst Main Duties: Data extraction & preparation: Collecting, cleaning, and transforming data from legacy SAP systems ready for migration to a new IFS ERP solution. Reconciling data across multiple business streams and gaining sign off from senior stakeholders. Reporting & visualisation : Building ...

Platform Specialist (Metabase)

Hiring Organisation
PayPlan
Location
Grantham, Lincolnshire, East Midlands, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£50,000
culture. Partner with stakeholders to translate business needs into actionable dashboards and queries. Collaborate with IT and data teams to integrate Metabase with existing systems and data sources. Document processes, standards, and training materials for ongoing use. Stay current with Metabase updates and BI trends, proactively recommending improvements. … PayPlan Your application matters to us. Every application we receive is manually reviewed by our recruitment teamwe do not use AI or automated systems to screen candidates. Were committed to giving each applicant fair and thoughtful consideration. ...

Dynamics 365 Product Owner/Business Lead

Hiring Organisation
SF Recruitment (Tech)
Location
Manchester, North West, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£70,000
Microsoft implementation partners during design, delivery, user acceptance testing, and release cycles Support data migration and consolidation from legacy or acquired CRM systems Collaborate with internal IT, data, and Power Platform teams to ensure alignment with wider group architecture and governance Contribute to the planning and mobilisation … working with flexibility, supported by a collaborative and pragmatic culture Fast growing organisation with an enviable culture Excellent overall package Leave a lasting legacy and really impact the organisation in a positive ...

Data Engineer (Hybrid)

Hiring Organisation
Agilis Search
Location
Bury St. Edmunds, Suffolk, England, United Kingdom
Employment Type
Full-Time
Salary
£50,000 - £60,000 per annum
data platform Run and support the platform day to day Use the Microsoft data platform to collect data from different legacy ERP systems Combine and clean this data into one trusted golden record Make sure master data is accurate, secure, and well governed Provide high-quality data ...

Functional Business Analyst

Hiring Organisation
HCLTech
Location
London Area, United Kingdom
Lead process design and transformation workstreams for large-scale Core Banking programs. - Create and maintain Target Product Catalogue and Target Process Catalogue. - Reimagine legacy banking processes and define target-state business and operational processes. - Conduct as-is process discovery with operations, business SMEs, and technology teams. - Develop … expertise in BPMN 2.0 modelling using ADONIS. - Strong understanding of German regulatory frameworks including BaFin, PSD2, GDPR, and MaRisk. - Hands-on experience analysing legacy system processes and defining target operating models. - Strong documentation and process design capability. - Native or C2 German language proficiency (mandatory). Key Competencies - Stakeholder ...

SAP Business Analyst

Hiring Organisation
Sellick Partnership
Location
Newcastle upon Tyne, Tyne and Wear, Tyne & Wear, United Kingdom
Employment Type
Permanent
Salary
£60000/annum
with a focus on S/4 HANA modules and associated processes. Support with migration activity from legacy SAP systems to S/4 HANA to include the gathering of requirements, data migration activities and process mapping to BPMN standards. Collaborate with the wider technical team such ...

Project Manager - Life Tax

Hiring Organisation
Robert Walters
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£660 - £760 per day
August 2026 . This is a hands-on role managing a new vendor solution, overseeing testing and reconciliation between legacy and new systems, and working directly with multiple life insurance clients. The role You'll take ownership of the end-to-end delivery of a UK Life … milestones, risks and delivery timelines Managing and coordinating a test team of 3-4 people Comparing, validating and reconciling outputs from old vs new systems Acting as the primary point of contact for clients, managing expectations and issues through to go-live Liaising closely with the software vendor ...

Sr Web Developer

Hiring Organisation
Tank Recruitment
Location
Northampton, Northamptonshire, England, United Kingdom
Employment Type
Full-Time
Salary
Salary negotiable
solid full-stack experience to join a collaborative team. You'll deliver high-quality, accessible web solutions, work across legacy and modern systems, and play a key role in shaping technical direction. What you'll do Build robust, accessible, and performant web applications Develop secure server-side ...

Controls Systems Engineer

Hiring Organisation
Vectis Recruitment
Location
Aylestone, Leicestershire, United Kingdom
Employment Type
Permanent
Salary
GBP 36,000 - 46,000 Annual
engineering group which is currently investing in large scale plant improvements and implementing the latest manufacturing technologies has a new vacancy for a Control Systems Engineer. Working as part of the group improvement team, you will be working on integrating new technologies & upgrading legacy control systems. Candidates … various machines control system. Review the subsequent programming and modification when needed to existing control system. Assist in upgrading legacy control systems as and when required. Developing new strategies to monitor machines digitally and to optimise. Assist in developing capital project programs for new equipment and major ...

Solution Architect

Hiring Organisation
Experis
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£650 - £680/day
trusted architectural decision-maker within large organisations 8+ years' experience of UK Customs , covering both business and technology domains Strong understanding of enterprise-scale systems, integration, and solution design Excellent stakeholder management and communication skills Ability to operate confidently in regulated, high-profile environments Nice-to-Have Experience working … large government or public-sector programmes Exposure to legacy modernisation and complex system integration Familiarity with agile and hybrid delivery models Experience influencing architecture across multiple suppliers or vendors ...

LAP Security Architect

Hiring Organisation
Sanderson Recruitment
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£500 - £750 per day
Security Architect Requirement Rate; Flexible Location; Remote - adhoc travel to London Duration; 6 month initial You will be supporting a Legacy Application program in upgrading hundreds of business applications across Wintel, Linux and cloud environments. Core Competencies Legacy System Modernisation: Proven experience in upgrading legacy … CHECK-accredited experience conducting or supporting pre- and post-deployment security assessments, vulnerability management, and remediation planning. Technical Experience Wintel/Linux: Securing legacy applications via patching, hardening, and privilege management (e.g., Active Directory, SELinux). Cloud (AWS/Azure/GCP): Designing IAM policies, encryption (FIPS ...

Niche Data Migration Specialist

Hiring Organisation
VIQU IT Recruitment
Location
Warwickshire, England, United Kingdom
Employment Type
Contractor
Contract Rate
£550 - £700 per day
large-scale records management system migration to Niche RMS and is seeking an experienced Niche Data Migration Specialist to support the transition from legacy systems. This role will focus on end-to-end data migration, including data treatment … cleansing, transformation, and validation. Key Skills & Experience: Proven experience delivering data migration into Niche RMS Experience migrating data from legacy records management systems (e.g. Mark43 or similar) Strong background in data mapping, cleansing, transformation, and reconciliation Experience handling large, sensitive datasets in regulated environments Ability to support ...

Observability Architect

Hiring Organisation
Fairfield Consultancy Services Ltd
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£600 - £625 per day
platforms: Splunk, ELK/Opensearch, CloudWatch Logs Metrics & telemetry: Prometheus, Grafana, OpenTelemetry Event management: ServiceNow, PagerDuty, Moogsoft, BigPanda Strong knowledge of instrumentation for distributed systems, microservices, containers (EKS, ECS), serverless workloads, and legacy systems. Migration & Architecture Skills Proven experience supporting large-scale on-prem to AWS migrations ...