1 to 25 of 42 Legacy Systems Jobs in Belfast

Our global client is looking for a D365 F&O specialist with extensive experience migrating from legacy systems to D365 F&O. This is a hybrid role outside IR35 initially for 9 months, with a good chance to extend. The Data Migration Lead will be responsible for … overseeing the planning, execution, and management of data transfers from legacy systems to Microsoft Dynamics 365. Responsibilities include ensuring data accuracy, consistency, and compliance with business needs throughout the entire migration lifecycle. Key requirements include: Strong understanding of data migration principles and best practices. Experience with data … integration using Azure services. Proven success in migrating Dynamics 365 F&O multiple times, with leadership experience in data migration from legacy systems to D365. #J-18808-Ljbffr More ❯

Social network you want to login/join with: Senior Full Stack C# .NET Developer, belfast col-narrow-left Client: WebX Systems Ltd. Location: belfast, United Kingdom Job Category: Other - EU work permit required: Yes col-narrow-right Job Views: 4 Posted: 31.05.2025 Expiry Date: 15.07.2025 col-wide Job … Description: 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, UltraAuthor, UltraXML , and UltraPortal —are used globally and combine proven legacy systems with cutting-edge, cloud-native innovations. As a privately owned UK business, we take pride in delivering exceptional software and highly responsive support. Joining our close-knit team means your work has direct and meaningful impact. We work closely with customers to ensure our solutions meet More ❯

UK's largest Mutual Pensions company. This role offers a unique opportunity to influence their technology landscape as they transition from legacy systems to a modern, microservices-based architecture. About the Role As a Lead Architect, you will own your domain, overseeing applications, cloud infrastructure, and services. … You will lead the transformation from a legacy 'spaghetti' architecture to a modern microservices architecture, helping shape the future of the company's technology. Key Responsibilities Provide technical oversight within your domain Collaborate with the board and senior stakeholders Lead the transition to microservices architecture Define standards for … user-centric designs and making a tangible impact quickly. Requirements Strong background in solutions architecture (Applications, Cloud, Security) Experience in modernizing legacy systems into microservices Deep knowledge of design patterns, cloud infrastructure, and security Prior experience in the Insurance industry, preferably Life Insurance Effective communication with technical More ❯

Summary Job Reference: VR020625 Job Title: Digital Systems Project Manager Salary: 41k pa Location: Lisburn, hybrid Contract : Temporary, full-time (36 hours pw, typically Mon-Fri/9-5) Overview VANRATH now stands as the first-tier supplier to a range of Top 100 Northern Ireland organisations, SMEs, Public … Sector organisations, Health and Social Care Trusts and NFP Organisations. One of our public sector clients is looking for a Digital Systems Project Manager to oversee the upgrades of legacy systems, while maintaining existing services. This is a long-term temporary position, with the desire is … times and hybrid working once you're up to speed. Best suited to those with experience of managing projects, managing enterprise/organisation wide systems, maintaining them, migrating to new systems, managing overall system licences, overall maintenance and upgrade of systems, collaborating across the organisation and liaising More ❯

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 ❯

to improve new and existing database systems. Assess data implementation procedures to ensure they comply with internal and external regulations. Install and organize information systems to guarantee functionality. Prepare accurate database design and architecture reports for management and executive teams. Oversee the migration of data from legacy systems to new solutions. Educate staff members through training and individual support. Offer support by responding to system problems in a timely manner. Requirements: Strong knowledge of database structure systems and data mining. Knowledge of systems development, including system development life cycle, project management approaches More ❯

Data Solutions Engineer at Lawfront, you will play a key role in developing and maintaining our enterprise data environment, ensuring smooth integration between legacy and modern applications, and supporting the Master Data Management (MDM) framework. Your work will directly support the organisation data strategy and enterprise architecture, ensuring … operational needs. Conduct performance tuning, updates, and enhancements to ensure reliability and scalability. Design and maintain efficient data integration pipelines between legacy systems and modern applications. Ensure data consistency, quality, and accuracy across all integrated platforms. 3. Master Data Management (MDM) Manage master data records to ensure … enterprise data warehouses. Proficiency in designing and managing ETL processes and integration pipelines. Practical knowledge of master data management principles. Familiarity with both legacy and cloud-based application environments. Attention to detail with strong analytical and problem-solving skills. Excellent communication and stakeholder engagement skills. Experience with cloud More ❯

Our client, a fast-growing technology organisation with global operations, is seeking a proactive Infrastructure & Systems Engineer to join their high-performing technical operations function. This person will take ownership of both on-premise and cloud-based infrastructure, playing a key role in modernising legacy systems … problem-solving capabilities and the ability to balance hands-on engineering with strategic thinking. Key Responsibilities Lead the development and support of enterprise-wide systems infrastructure, including servers, storage, networks, and virtualisation layers. Build and maintain secure, high-availability environments across cloud and physical platforms, ensuring performance, capacity, and … Implement and monitor backup strategies, patching, performance tuning, and system upgrades. Document processes, changes, and designs thoroughly to ensure repeatability and compliance. Monitor infrastructure systems to detect anomalies, enforce uptime standards, and support audit readiness. What We're Looking For Degree in Computer Science, Engineering, or related field (or More ❯

you’ll own the definition and implementation of enterprise-wide security architecture. You’ll be responsible for designing strategies and frameworks that secure critical systems and services, spanning both on-premise and cloud environments. You’ll also play a hands-on leadership role in mentoring solution and technical architects … security-focused architecture patterns Design and maintain conceptual and logical security architectures across multiple technology domains Support secure delivery of cloud and on-premise systems (Oracle, Microsoft, Salesforce, MuleSoft) Guide solution and technical architects on security principles, best practices, and assurance Contribute to architecture governance, standards, and documentation Partner … in complex environments Strong understanding of enterprise security frameworks, governance, and risk management Experience delivering secure architectures in cloud, hybrid, and legacy systems Hands-on knowledge of modelling tools and frameworks (UML, ArchiMate, Bizz design ideal) Broad technical knowledge across infrastructure, data, CRM, HR, and finance systems More ❯

are seeking a hands-on Data Engineer with strong AWS experience to support two key initiatives: finalising a Braze CRM integration and migrating legacy R-based data pipelines to a modern cloud-native stack. Support the CRM team with data engineering requests. QA, deploy, and monitor data pipelines … and understand existing R-based data pipelines created by data scientists. Migrate these pipelines into Airflow, dbt, and Terraform workflows. Modernize and scale legacy infrastructure running on AWS. Collaborate with engineering teams to ensure a smooth transition and system stability. Languages & Scripting: Python (primary scripting language for Lambda … decisions and project status. Willing to take on essential but sometimes "tedious" tasks without hesitation. Practical attitude, especially when working with legacy systems or imperfect code. Ideally, experience migrating legacy scripting environments (e.g., R to Python) to modern pipelines. #J-18808-Ljbffr More ❯

Key Responsibilities Designing and developing internal and client-facing apps using C#/.NET (Core ideally) and Angular Implementing new features and improving legacy code with Docker, AWS ECS, and CI/CD pipelines Translating business requirements into scalable, maintainable solutions Participate in architectural discussions and decisions in … Familiarity with Docker, AWS ECS, CI/CD pipelines, and Git Experience working in small agile teams Confidence refactoring and improving legacy systems responsibly What’s in it for you? Salary up to £65k Hybrid working 3 days a week (South Belfast office) Collaborative and supportive engineering More ❯

Applications , you’ll be responsible for designing the future state of the application estate, guiding the organisation as it transitions from legacy systems to modern, service-oriented architectures. You will provide architectural guardrails for solution delivery teams, mentor architects and technical leads, and work closely with cross … Guide and mentor solution and technical architects to ensure high standards of application design Collaborate with teams across digital, data, CRM, finance, and HR systems Participate in architecture governance groups and project boards Promote continuous improvement of application platforms and tooling Monitor technology trends and recommend relevant innovations Support … tools and frameworks (e.g. UML , ArchiMate , Bizz design ) Familiarity with data structure concepts and relational databases (SQL Server, Oracle, MySQL) Broad understanding of enterprise systems (CRM, Finance, HR, integration platforms) Strong communication and stakeholder management skills Experience with architecture assurance, governance, and version-controlled repositories Strategic mindset with a More ❯

Knowledge of advanced frameworks for customer understanding (e.g. journey mapping, empathy mapping) and experience developing customer journeys. Exposure to digital transformation initiatives, including legacy system modernization and adoption of emerging technologies. Understanding of UX principles, user research methodologies, and their integration into product strategy. Experience in data analysis More ❯

and guiding large-scale data platform migrations. Proficiency in AWS, Azure, or GCP is required, and familiarity with SAP BW, SAP Datasphere, and legacy-to-cloud migration strategies is a significant advantage. If you thrive in a consultative environment, have a passion for architecting scalable data solutions, and … and implement CDC and delta load frameworks to enhance data integration and performance. Platform Modernization & SAP Expertise: Lead complex migrations from legacy systems to modern cloud platforms; oversee SAP BW to SAP Datasphere transitions and leverage SAP Data Analytics to maximize solution effectiveness. Governance, Security & Collaboration: Ensure … experience as a Data Solutions Consultant, Pre-Sales Data Engineer, or in a cloud data architecture role in SAP BW, AP Datasphere, and legacy-to-cloud migration strategies Hands-on experience with AWS, Azure, or GCP and familiarity with cloud-native tools such as AWS Glue, DMS, Kafka More ❯

of developing solutions in Microsoft Dynamics 365 Business Central (or NAV) Proficiency in AL programming language and C/AL (for legacy systems) Strong understanding of Business Central architecture, modules, and functionality Experience with Visual Studio Code and AL development tools Knowledge of SQL Server, database design … BI) Knowledge of Azure services and cloud deployment models Experience with API development and web services integration Familiarity with DevOps practices and version control systems (Git, Azure DevOps) Previous experience in manufacturing, distribution, or financial services industries Technical Skills Databases: SQL Server, T-SQL, database performance tuning Integration: REST More ❯

quality software Mentor technical leads and senior engineers, embedding a culture of learning, ownership, and continuous improvement Support the evolution of legacy systems toward cloud-native, event-driven solutions using modern frameworks Partner with stakeholders to drive prioritisation, roadmaps, and investment in technical initiatives Actively engage in … or past hands-on development experience Excellent communicator and collaborator, with the ability to influence across engineering, product, and business Adept at balancing legacy system constraints with modernisation goals Comfortable in both strategy and delivery Why Join? You'll step into a highly visible role at the heart More ❯

Key Responsibilities Designing and developing internal and client-facing apps using C#/.NET (Core ideally) and Angular Implementing new features and improving legacy code with Docker, AWS ECS, and CI/CD pipelines Translating business requirements into scalable, maintainable solutions Participate in architectural discussions and decisions in … Familiarity with Docker, AWS ECS, CI/CD pipelines, and Git Experience working in small agile teams Confidence refactoring and improving legacy systems responsibly What’s in it for you? Salary up to £65k Hybrid working 3 days a week (South Belfast office) Collaborative and supportive engineering More ❯

Configure Salesforce and perform necessary customisations to meet client requirements. Oversee data migration efforts, ensuring the accurate transfer of data from legacy systems to Salesforce. Develop and execute test plans to ensure the quality and functionality of Salesforce solutions. Provide user training and support to ensure the More ❯

role, you will gather customer requirements, configure NetSuite to meet business needs across Finance, E-commerce, and Procurement, and manage data migration from legacy systems. You will also provide ongoing … system support, troubleshooting, and user training. Key responsibilities: Consult with clients to document and translate their requirements into NetSuite functionality Configure and design NetSuite systems across Finance, Procurement, and E-commerce Lead data migration from legacy systems to NetSuite Troubleshoot, diagnose issues, and provide end-user More ❯

engineering practices and passionate about building the next generation of cloud-native applications on Azure? Do you want to shape application strategy, modernise legacy platforms, and bring real business innovation to life? This is more than just an architecture role. It’s a chance to lead transformation from … teams and business outcomes. Working with clients across regulated industries and fast-growth markets, you’ll own: Azure Application Modernisation – redesigning legacy systems for scalability, performance and maintainability Engineering Leadership – guiding software teams through modern DevOps, IaC, CI/CD and observability adoption Stakeholder Influence – working closely More ❯

bureaus, document management, payments) and external third-party systems. Manage the full data migration lifecycle, including data extraction, transformation, validation, and cutover from legacy systems. Collaborate closely with business units across lending, risk, compliance, and finance to ensure solution alignment with operational needs. Ensure accurate configuration of lending … in system integration using API-led and middleware architectures in banking environments. Proven success in managing complex data migration projects from legacy systems to modern core banking platforms. Solid understanding of credit policy, lending lifecycle management, and regulatory compliance (e.g., PRA, FCA, Basel). Exceptional stakeholder engagement More ❯

quality throughout the development lifecycle — from analysing requirements to test planning, automation, and supporting live releases. You’ll initially work with legacy systems and transition to a modern stack including C# .NET 9, React, Azure pipelines, CI/CD, TDD, and Test Automation. What we’re looking More ❯

into the world of high-performance tech and quantitative finance? Join a leading global trading firm where innovation is key — no legacy systems, no bureaucracy, just a fast-paced, intellectually stimulating environment designed for growth. With unlimited access to cutting-edge technology and mentorship from top-tier … contribute to high-impact projects, shaping the future of trading tech. What You’ll Be Doing Develop and enhance state-of-the-art trading systems and infrastructure Design and implement your own quantitative models Collaborate with top engineers, quants, and researchers to tackle complex challenges Learn rapidly and grow … your contributions have real impact Collaborate with some of the brightest minds in both tech and finance Access to top-of-the-line tools, systems, and infrastructure Unmatched career growth in a high-performance, meritocratic culture #J-18808-Ljbffr More ❯

experience across delivery models suited to SaaS (agile, DevOps, modular delivery) Experience integrating Salesforce with wider technologies (e.g. AWS, Azure, M365, legacy systems) Knowledge of UK government standards for security, compliance, and assurance Strong commercial mindset – confident supporting bids under frameworks like G-Cloud, DOS, TS3 Experience More ❯

of GDPR, consent management, and data security best practices. Practical experience with Agile methodologies. Proficient in integrating third-party APIs, internal tools, and legacy systems. Familiarity with architecture tools (e.g., Ardoq) to identify system dependencies and gaps. Strong stakeholder management and cross-functional collaboration skills. Strategic thinker with More ❯