Permanent Legacy Systems Jobs in Berkshire

1 to 25 of 91 Permanent Legacy Systems Jobs in Berkshire

IT Systems Engineer

slough, south east england, United Kingdom
Hybrid / WFH Options
identifi Global Resources
IT Systems Engineer Remote working 12 Months FTC offering £46,000 per annum + great benefits Generous pension (12% Personal Contribution + 23% Employer Contribution) and up to 35 days of holidays per year About the role This is an exciting opportunity to play a key role in the … skills and make positive impact? We are looking for an experienced IT professional to join during the transition of legacy case management systems to modern, cloud-based solutions. Your role will focus on maintaining and supporting on prem legacy systems during ongoing transformation to … cloud-based (AWS) software as a service (SaaS). Your role would be in 60% focussing on supporting Applications/systems that sit on SQL, and 40% would be general Infrastructure support. Therefore we are looking for all-arounder, with good SQL knowledge. What You Will Do Provide expert More ❯
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IT Infrastructure Engineer

slough, south east england, united kingdom
Hybrid / WFH Options
identifi Global Resources
skills and make positive impact? We are looking for an experienced IT professional to join during the transition of legacy case management systems to modern, cloud-based solutions. Your role will focus on maintaining and supporting on prem legacy systems during ongoing transformation to … cloud-based (AWS) software as a service (SaaS). Your role would be in 60% focussing on supporting Applications/systems that sit on SQL, and 40% would be general Infrastructure support. Therefore we are looking for all-arounder, with good SQL knowledge. What You Will Do Provide expert … support and maintenance for legacy case management systems (Extranet, CMS, DTS, EKS2, and ADMS) in collaboration with the IT teams. Ensure the legacy systems continue to run smoothly during the transition to cloud-based solutions. Collaborate with cross-functional teams to ensure effective service More ❯
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Senior Full Stack C# .NET Developer

slough, south east england, United Kingdom
Hybrid / WFH Options
WebX Systems Ltd
Senior Full Stack C# .NET DeveloperFully Remote (UK Residents Only) About WebX Systems At WebX, we specialise in technical publishing and content management solutions for the aerospace and defence sectors worldwide. Our flagship products— UltraCSDB®, UltraAuthorTM, UltraXMLTM , and UltraPortalTM —are used globally and combine proven legacy systems … Stack .NET Developer to help evolve our product suite. You’ll work across both legacy Windows desktop applications and modern web-based systems and help lead the transition toward cloud-native architecture. This role is perfect for someone who enjoys innovating within established environments while also driving … quality. What We Offer Salary : £70,000 – £85,000 depending on experience Technical Growth – Work across a diverse technology landscape, from legacy systems to cutting-edge cloud-native tools. Autonomy – Freedom to shape technical decisions and make a significant impact on product direction and architecture. Career Advancement More ❯
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Senior Full Stack C# .NET Developer

reading, south east england, United Kingdom
Hybrid / WFH Options
WebX Systems Ltd
Senior Full Stack C# .NET DeveloperFully Remote (UK Residents Only) About WebX Systems At WebX, we specialise in technical publishing and content management solutions for the aerospace and defence sectors worldwide. Our flagship products— UltraCSDB®, UltraAuthorTM, UltraXMLTM , and UltraPortalTM —are used globally and combine proven legacy systems … Stack .NET Developer to help evolve our product suite. You’ll work across both legacy Windows desktop applications and modern web-based systems and help lead the transition toward cloud-native architecture. This role is perfect for someone who enjoys innovating within established environments while also driving … quality. What We Offer Salary : £70,000 – £85,000 depending on experience Technical Growth – Work across a diverse technology landscape, from legacy systems to cutting-edge cloud-native tools. Autonomy – Freedom to shape technical decisions and make a significant impact on product direction and architecture. Career Advancement More ❯
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Technical Lead

slough, south east england, United Kingdom
Hybrid / WFH Options
twentyAI
About the Role: As Technical Lead you will play a central role in designing and delivering enterprise-grade solutions, managing both legacy systems and the strategic migration to Azure-based cloud platforms. You’ll lead by example, guiding a cross-functional team through complex technical decisions, ensuring … delivery standards, and alignment with the wider enterprise architecture. This role offers the opportunity to contribute to large-scale modernisation while maintaining essential business systems used across global markets. Key Responsibilities: Lead the technical design and decision-making for all team deliverables, ensuring architectural alignment and long-term maintainability. … technical delivery of features, with a focus on quality, scalability, and performance. Work closely with architects to contribute to the ongoing evolution of enterprise systems, balancing innovation with operational stability. Provide technical leadership, mentoring developers and fostering a high-performing Agile team culture. Collaborate with DevOps and platform engineering More ❯
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D365 Project Manager

slough, south east england, United Kingdom
Experis UK
We are seeking an experienced Project Manager to lead the end-to-end implementation of Microsoft Dynamics 365, overseeing the transition from a legacy platform to a modern, scalable CRM/ERP solution. This role is critical in enabling operational efficiency and enhancing user experience across the organisation. … project lifecycle of the D365 implementation, from initial planning through to delivery and post-go-live support. Manage the transition from legacy systems to Microsoft Dynamics 365 with minimal disruption to business operations. Define project scope, objectives, deliverables, and success metrics in collaboration with key stakeholders. Develop … or Finance & Operations implementations. Strong understanding of the D365 platform and common integration and data migration challenges. Experience managing transitions from legacy systems to Microsoft cloud solutions. Excellent stakeholder management and communication skills across technical and non-technical audiences. Experience working in Agile, Waterfall, or hybrid delivery More ❯
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Data Migration Specialist

slough, south east england, United Kingdom
Kinetech
Microsoft/Azure data tools. You'll play a key role in standardising and migrating data from a diverse range of legacy systems into a centralised Dynamics 365 CE environment. You’ll lead the full data migration lifecycle and work closely with technical and functional stakeholders to … execute ETL (Extract, Transform, Load) processes into Dynamics 365 CE modules (e.g., Sales, Customer Service, Field Service). Work with legacy CRM systems, spreadsheets, databases, and proprietary platforms to extract data. Map and transform data into Dynamics 365 CE entities such as Accounts, Contacts, Leads, Cases, and More ❯
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D365 Finance Business Analyst

slough, south east england, United Kingdom
Catch Resource Management
including accounting, financial reporting, and budgeting, and how these map to D365. Experience supporting or leading ERP system migrations, particularly from legacy systems to D365. Skilled in gathering, analysing, and documenting business requirements, and translating them into functional specifications and system solutions. Excellent problem-solving abilities with … solutions. Assess and solve complex finance-related problems by applying industry best practices and technology solutions. Support the migration from legacy finance systems to a new platform, ensuring smooth transition and minimal disruption. Analyse and understand matured finance processes and adapt them to the new platform, leveraging More ❯
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Senior Web Developer

slough, south east england, United Kingdom
Hybrid / WFH Options
itecopeople
and integration points for continuity and future development. • Engage stakeholders to understand needs, usage and modernisation opportunities. • Design and propose a replacement using central systems and Microsoft Power Platform/Azure. • Lead redevelopment, delivering scalable, centrally supported tools. • Ensure compliance with governance, security and engineering best practices. • Coordinate integration … self-directed. A strong collaborator able to engage technical and non-technical audiences. Comfortable in a transitional environment where legacy and modern systems coexist. About the client. IT Services is a strategic, delivery-focused department supporting key professional operations. Committed to modernising the digital estate, they deliver … scalable services aligned with software development and security best practice. This role is key in replacing departmental legacy systems with centrally supported platforms, offering high autonomy, technical challenge and visibility across the institution. To apply, send your CV to Ryan at rmitchell@itecopeople.co.uk with a supporting statement More ❯
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Senior Data Engineer

slough, south east england, United Kingdom
Hybrid / WFH Options
IDEXX
The Go-to Engineer For End-to-end data migration architecture ( on-premise to cloud or cloud-to-cloud). Designing scalable and secure systems using AWS services like S3, Lambda, and EKS, EC2, VPC, RDS. Interfacing with both legacy PHP/C# systems and modern … to drive meaningful improvements in animal health. A Bit More About The Role, You Will Lead migration of data assets from legacy systems to our cloud-native environments using AWS and our bespoke Conversion Framework. Build new and maintain existing bespoke systems. Implement .NET-based microservices with … Coach junior developers and collaborate cross-functionally with product and platform teams. So what are we looking for? Bachelor's in Computer Science , Information Systems, or equivalent experience. 7+ years in software or data engineering, with strong recent experience in cloud data migrations. Proficient with MySQL, OOP, AWS (EC2 More ❯
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Solutions Engineer

slough, south east england, United Kingdom
Hybrid / WFH Options
Ownera
assets. Our flagship product, the Ownera Router, powered by the open FinP2P protocol, enables seamless connectivity between institutions, blockchains, and legacy financial systems to unlock new opportunities in digital asset trading and tokenization. Job Overview As a Solutions Engineer , you will partner with the Sales, Product, and … Engineering, Finance, or a related field. Strong understanding of blockchain technology, digital assets, and tokenization. Experience with financial infrastructure, APIs, and legacy systems integration. Beneficial to have experience with scripting (Python, Bash), knowledge of Kubernetes/Docker, or experience working with financial data platforms. Sales & Business Development More ❯
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SAP Record to Report Deployment Senior Lead F/M/X

Slough, Berkshire, United Kingdom
ENGINEERINGUK
Regional Digital Technologies Deployment team and is responsible for deploying new Record to Report capabilities to the European Markets using S4 HANA and Edge systems, working in collaboration with the Centers of Excellence, Data Transformation Team, GPOs, Regional Business Teams, IT Run & Grow, and System Integrators. What are we … escalating any R2R technical related issues Plan and coordinate data migration, cutover activities, and go-live strategies. Ensure smooth transition from legacy systems to SAP S/4HANA. Identify and mitigate deployment risks. Ensure standardization of business processes Drive automation and best practices in R2R Ensure seamless … integration with external systems such as Blackline, HFM, Lucernex, and payment suppliers Act as a bridge between business teams and SAP consultants. Support training sessions and user adoption programs What can you expect from Mars? Work with diverse and talented Associates, all guided by the Five Principles. Join a More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Senior Technical Consultant – CLD – Data Platform

Reading, England, United Kingdom
Ultima
Server upgrades, performance tuning, and data platform transformations. The role requires a balance of technical excellence and consultancy experience, guiding clients through both legacy system optimization and modern cloud-first analytics architectures. Additional activities and responsibilities not covered within the above may also be required as part of More ❯
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Senior Technical Consultant – CLD – Data Platform

slough, south east england, United Kingdom
Ultima
Server upgrades, performance tuning, and data platform transformations. The role requires a balance of technical excellence and consultancy experience, guiding clients through both legacy system optimization and modern cloud-first analytics architectures. Additional activities and responsibilities not covered within the above may also be required as part of More ❯
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C# Engineer

slough, south east england, United Kingdom
Hybrid / WFH Options
twentyAI
of a broader modernisation programme transitioning into a cloud-native Python and Databricks environment . As the business moves away from legacy systems and invests in modern architecture, you’ll work at the intersection of stability and transformation — ensuring continuity in existing applications while helping shape the … technologies like React . Support mission-critical regulatory applications as part of a collaborative, Agile feature team. Contribute to the strategic migration from legacy platforms to a cloud-based architecture using Python , Azure , and Databricks . Apply best practices in DevOps, CI/CD, and test-driven development. … as Jira, Docker, Kubernetes, Octopus, Artifactory, Oracle, and SQL Server. A problem-solver with a strong understanding of software development practices. Experience with regulatory systems in Financial Services is a plus, but not essential. Why Join? Play a pivotal role in a cloud transformation journey using modern data and More ❯
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Full Stack Engineer

slough, south east england, United Kingdom
Morris Sinclair Recruitment
a large-scale publishing platform. This platform integrates both modern and legacy technologies, and your role will be pivotal in maintaining existing systems while contributing to a long-term transition toward a more scalable and modern architecture. You’ll work across the stack using technologies like .NET … love to hear from you. Key Responsibilities Design, develop, and maintain scalable web applications using .NET and Vue.js. Support and enhance legacy systems built with older .NET and Vue.js versions. Optimize database performance (SQL Server, MongoDB). Collaborate with cross-functional teams to gather requirements and implement … as Camunda. Proficient in automated testing using frameworks like NUnit or Playwright. Understanding of architectural patterns such as Domain-Driven Design (DDD), event-driven systems, and microservices. Knowledge of Behavior-Driven Development (BDD) and Test-Driven Development (TDD) methodologies. What’s on Offer 4 Wellbeing days annually. Access to More ❯
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Senior .Net Developer

slough, south east england, United Kingdom
Ocho
Leading the development of new features using modern DevOps and deployment practices ( Docker, AWS ECS, CI/CD ) Refactoring and optimising legacy systems for performance, scalability, and maintainability Mentoring a junior developer through code reviews, guidance, and best practices Collaborating with business stakeholders to translate needs into More ❯
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Senior .Net Developer

reading, south east england, United Kingdom
Ocho
Leading the development of new features using modern DevOps and deployment practices ( Docker, AWS ECS, CI/CD ) Refactoring and optimising legacy systems for performance, scalability, and maintainability Mentoring a junior developer through code reviews, guidance, and best practices Collaborating with business stakeholders to translate needs into More ❯
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Technology Advisory Assistant Manager

Reading, Oxfordshire, United Kingdom
BDO UK LLP
within our Business Services and Outsourcing Stream consists of cloud accounting specialists that support businesses with the implementation and migration from legacy systems to innovative cloud accounting. We are supported by integration partners offering systems designed to enhance productivity, operational performance, the control environment, business agility … production of timely management information. You will also be working with clients to transform their finance function through the application of technology, identifying suitable systems to help them achieve their aims. You will take responsibility for client onboarding, migration and configuration of the selected cloud accounting systems, work … closely and manage members of the team to ensure our clients' requirements are met. If you are interested in accounting systems and how they can be utilised to transform finance functions into a lean, efficient and automated engine for any business, come and join us! You'll be someone More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Data Engineer - Python

slough, south east england, United Kingdom
Hybrid / WFH Options
Qh4 Consulting
time, permanent Sector: Investment Management We are looking for a Software/Data Engineer to join a growing team focused on transforming core technology systems and data pipelines within a leading investment management environment. This is a hands-on role involving the modernisation of market data processes, resolution of … Proficiency with SQL and working with databases and data lakes. Experience working in CI/CD environments (e.g. GitHub Actions, Sonar) and with containerised systems (e.g. Docker). Ability to operate both independently and as part of a collaborative team. Strong communication skills and ability to engage with business … stakeholders directly. Desirable Experience Familiarity with legacy systems (e.g. C#) and willingness to interact with them where necessary. Exposure to Cloudera Data Platform or similar big data environments. Experience with tools such as Apache Hive, NiFi, Airflow, Azure Blob Storage, and RabbitMQ. Background in investment management or More ❯
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Project Manager

slough, south east england, United Kingdom
Hunter Bond
Provide accurate progress reports to clients and internal stakeholders. Oversee user testing, issue management, and prioritization. Ensure smooth data migration from legacy systems to target solutions. Manage scope, risks, and changes, ensuring alignment with the agreed solution and business case. Collaborate with internal teams, mentor junior members … and drive process improvements. Qualifications: Strong experience in Project Management, particularly in Agile environments. Knowledge of front, middle and back office Background in Trading Systems Proven ability to manage complex projects and deliver high-quality results. Excellent communication and stakeholder management skills. Experience with data migration and user testing. More ❯
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Digital Program Manager

slough, south east england, United Kingdom
The Green Recruitment Company
the company’s hydrogen production and sales operations. This role is instrumental in advancing the digital transformation agenda by integrating isolated legacy systems, deploying new digital tools, and ensuring full compliance with evolving regulatory frameworks. The ideal candidate will combine technical acumen with excellent programme management skills … custom web-based production planning tool Carbon, pricing, and scheduling data from electricity providers Data from hydrogen production plant PLCs Logistics partner transport management systems (TMS) Invoicing and financial processes through Microsoft Dynamics Core Objectives: Ensure compliance with UK regulatory and pricing mechanisms, including the Low Carbon Hydrogen Standard … Sound financial and budgeting capabilities Effective multitasking and problem-solving abilities under pressure Proficiency in project management tools (e.g. Microsoft Project) Experience integrating diverse systems and technologies Knowledge of Python is a plus Familiarity with UK low-carbon certification schemes (LCHS, RTFC) is advantageous More ❯
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Platform Architect

slough, south east england, United Kingdom
Ascendion
architecture and design of a mobile application modernization project for a leading financial institution. The role requires deep expertise in modernizing legacy systems, designing scalable platforms, and integrating cutting-edge technologies to deliver secure, high-performance mobile banking solutions. The ideal candidate will have hands-on experience … at least 3 years focused on mobile application modernization. Proven track record in the banking or financial services domain, with knowledge of core banking systems, payment gateways, and regulatory compliance. Technical Expertise: Hands-on experience with Kong API Gateway for API management, routing, and security. Extensive knowledge of AWS More ❯
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Software Engineer

slough, south east england, United Kingdom
Hybrid / WFH Options
Cloud Decisions
will join a cross-functional team delivering end-to-end, full stack solutions from design through to deployment helping to modernise legacy systems and build scalable, cloud-native applications in Azure. You'll be working on a range of client and internal projects using a well-rounded … They’re Looking For: Strong experience building applications using C# and .NET frameworks Hands-on with SQL, MVC, and WCF Familiarity with modernising legacy apps into cloud-native Azure environments Confident with DevOps practices, CI/CD pipelines, and agile delivery Solid understanding of software engineering best practices More ❯
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Software Engineer

reading, south east england, United Kingdom
Hybrid / WFH Options
Cloud Decisions
will join a cross-functional team delivering end-to-end, full stack solutions from design through to deployment helping to modernise legacy systems and build scalable, cloud-native applications in Azure. You'll be working on a range of client and internal projects using a well-rounded … They’re Looking For: Strong experience building applications using C# and .NET frameworks Hands-on with SQL, MVC, and WCF Familiarity with modernising legacy apps into cloud-native Azure environments Confident with DevOps practices, CI/CD pipelines, and agile delivery Solid understanding of software engineering best practices More ❯
Posted:
Legacy Systems
Berkshire
10th Percentile
£62,125
25th Percentile
£63,438
Median
£66,250
75th Percentile
£68,438
90th Percentile
£69,375