21 of 21 Permanent Legacy Systems Jobs in Central London

tools to accelerate and enhance the migration process, and we’re looking for developers who are excited by the opportunity to work at the intersection of legacy systems, modern development, and AI-assisted engineering. Key Responsibilities - Collaborate with the existing team to re-engineer Oracle PLSQL stored procedures into C# services. - Design and implement .NET-based components … that integrate with both legacy PHP systems and new PostgreSQL databases. - Work closely with business analysts and stakeholders to ensure functional parity and identify opportunities for enhancement. - Participate in the design of a hybrid architecture that supports phased migration. - Use AI-assisted tools to analyze, translate, and optimize legacy code. - Support BAU operations during the … Required SkillsExperience - 5+ years of experience in .NET/C# development, with a strong focus on backend services and data access layers. - Proven experience in migrating legacy systems, especially from Oracle to PostgreSQL or similar. - Strong understanding of PL/SQL and experience translating stored procedures into application logic. - Familiarity with PostgreSQL, including performance tuning and SQL More ❯

for the chosen solution. Your Profile Essential skills/knowledge/experience: Understand the Guidewire Data Model and the Application Landscape. Experience in integrating Guidewire Claims Centre with downstream systems including finance systems (general ledger), payment systems and documents management systems. Experience in integrating Guidewire Claims Centre V10 and SaaS Cloud with third party/broker policy … management systems. Experienced in migrating data from legacy systems to Guidewire Claims Centre. Expertise in reconciling data from Guidewire with Datawarehouse. Experience and abilities demonstrated with GOSU programming, XML, PCF, REST and SOAP. Experience with source code management systems such as Subversion, GitHub. Knowledge of General Insurance domain and claims processes. Experience working in multiple technologies More ❯

Responsibilities: Work with clients to analyse their current and future business needs, recommend best practice solutions, and define project deliverables Translate accounting requirements into system configurations Configure debt accounting systems (i.e. Allvue, Broadridge Sentry) to track complex instruments Design customised workflows aligned with investment strategies and processes Migrate data from legacy systems with validation controls Track … strategies Produce detailed status reports, track actions, and manage progress meetings Create and deliver training materials and documentation Provide ongoing system optimisation and support Qualifications and Skills: Private Credit Systems Implementation Experience (Highly Desired): Minimum 2-3 years of experience implementing private credit Investment Accounting software is highly valued. Ideal candidates would have exposure to requirements gathering, system configuration … complex capital structures, and accurately book transactions such as drawdowns, repayments, PIK interest, and fee amortisation is essential. Experience reconciling positions and cash flows across administrators, custodians, and internal systems is also highly valued. System Knowledge: Proficiency with industry-standard platforms utilised in private credit investment operations and accounting. Strong expertise with Allvue investment accounting is highly desired. Experience More ❯

major digital and cloud transformation. We’re looking for a visionary Integration & Solution Architect to design and deliver scalable integration solutions that bridge cutting-edge cloud platforms and legacy systems. If you thrive at the intersection of strategy and technology, this is your opportunity to influence high-impact digital initiatives. What You’ll Do: Architect and implement robust More ❯

metrics and are scalable Helping to shape, evolve and document the architecture that underpins the existing platforms and services and lead their on-going transition from legacy systems to cloud based architectures. Interacting with project roles as required, to gain an understanding of the complex business environment, technical context, end client requirements and organisational strategic direction. Advising … its broader eco system Deployment automation technologies The ability to code, especially Infrastructure as code Network design, implementation, and administration A track record in the design and application of systems, leveraging automation technologies A deep understanding of Virtualisation and Container technologies Design of large, complex systems including practical experimentation and development skills Has both technical breadth and depth More ❯

testing strategies to ensure parity and quality. Assist in managing a hybrid Oracle/.NET environment during phased rollout. Contribute to BAU operations and the stability of the legacy system while migration activities are underway. Required Skills & Experience 5+ years of experience developing in Oracle PL/SQL, including deep knowledge of stored procedures, triggers, and packages. Proven … to work collaboratively in a cross-functional team environment. Strong problem-solving ability and attention to technical detail. Excellent communication skills, with the ability to document and explain complex systems clearly. Desirable Skills Experience working with legacy PHP systems and their integration with Oracle. Exposure to AI-assisted development tools for code analysis and migration. Familiarity More ❯

Manager to lead the organisational change and training workstream for a Microsoft Dynamics 365 implementation project. This role is key to ensuring a smooth transition from legacy systems to D365, by preparing end users for new ways of working through effective communication, change planning, stakeholder engagement, and tailored training delivery. Key Responsibilities: Develop and execute the change More ❯

healthcare, and automotive-to design and build innovative digital platforms and experiences. Our teams combine deep technical expertise with seamless delivery to solve complex challenges, modernise Legacy systems, and accelerate digital transformation. With a strong focus on cloud, data, AI, and Embedded technologies, GlobalLogic UK&I offers a dynamic environment where engineers, architects, and consultants collaborate on More ❯

company is embarking on a greenfield NetSuite implementation to unify operations and drive scalability. Key Responsibilities Lead the end-to-end data migration process from multiple legacy systems into NetSuite. Develop and execute a robust data cleansing strategy to ensure accuracy, consistency, and completeness across all acquired entities. Define data mapping, transformation, and validation rules in collaboration More ❯

company is embarking on a greenfield NetSuite implementation to unify operations and drive scalability. Key Responsibilities Lead the end-to-end data migration process from multiple legacy systems into NetSuite. Develop and execute a robust data cleansing strategy to ensure accuracy, consistency, and completeness across all acquired entities. Define data mapping, transformation, and validation rules in collaboration More ❯

of the DealCloud CRM platform—driving configuration, integration, and continuous improvement across the business. This is a hands-on, configuration-heavy role ideal for someone who thrives on aligning systems with business strategy in a fast-paced, data-rich environment. Key Responsibilities: Take ownership of the DealCloud CRM platform, managing configuration, user roles, workflows, and customisations. Optimise platform performance … by maintaining system integrations and monitoring reliability. Lead data migration from legacy systems—ensuring high standards of accuracy, integrity, and consistency. Partner with Investment Bankers, Ops, Business Support and IT to translate business needs into platform solutions. Deliver an effective change and release management process to support ongoing platform evolution. Provide training, documentation, and first-line support … modern release processes. Excellent communication and stakeholder engagement skills. Experience in investment banking or financial services environments. Familiar with Microsoft Office Suite and standard business applications. Degree in Information Systems or similar (2:1 or above preferred). For a full consultation on this role please email your CV to Arc. More ❯

in Central London. This is a hybrid role, requiring 2-3 days per week in the office. This is a modern, digitally native business with no legacy systems - a rare opportunity to work in a clean, forward-thinking tech environment. You'll be joining a dynamic and fast-paced team that values innovation, adaptability, and continuous improvement. … GCP subject matter expert, with direct support from Google Contribute to the adoption of AI and emerging technologies post-migration Thrive in a fast-evolving environment with minimal legacy constraints Requirements : Proven experience as a Data Engineer. Hands-on experience with cloud migrations (on-prem to cloud or cloud-to-cloud). Strong knowledge of GCP, including BigQuery. More ❯

in Central London. This is a hybrid role, requiring 2-3 days per week in the office. This is a modern, digitally native business with no legacy systems - a rare opportunity to work in a clean, forward-thinking tech environment. You'll be joining a dynamic and fast-paced team that values innovation, adaptability, and continuous improvement. … GCP subject matter expert, with direct support from Google Contribute to the adoption of AI and emerging technologies post-migration Thrive in a fast-evolving environment with minimal legacy constraints Requirements : Proven experience as a Data Engineer. Hands-on experience with cloud migrations (on-prem to cloud or cloud-to-cloud). Strong knowledge of GCP, including BigQuery. More ❯

hybrid) We have partnered with a clothing retailer who are looking for a BI Analyst to add to the team. This client are currently migrating from legacy systems to the cloud, they need someone with advanced SQL skills including T-SQL. This opportunity is Greenfield in nature with the opportunity to have a wide remit and be More ❯

migration planning Work closely with clients to define technical requirements and provide architectural guidance Conduct health checks, performance tuning, and capacity planning of virtual environments Migrate legacy systems to modern virtual infrastructure (vSphere/Hyper-V to Azure, etc.) Document and support all solutions including HLDs and LLDs Collaborate with project managers, cloud architects, and network/ More ❯

Overview: Albany Beck is seeking a dynamic and experienced Lead PMO to support a major investment bank in delivering a high-impact, fast-paced change programme replacing a legacy core banking system. This role is ideal for someone with a strong background in PMO who thrives in environments with evolving processes and limited structure. If you’re hands More ❯

lead a digital transformation initiative for one of their key financial services clients. This is a fantastic opportunity for a seasoned professional to drive change, modernise legacy systems, and optimise operational processes within a regulated environment. Key Requirements: Proven experience as a Programme Manager within financial services. Strong background in digital transformation, system upgrades, and process optimisation. More ❯

international environment. This is not a “keep the lights on” role. We’re looking for a visionary technology leader with a proven track record in modernising legacy systems, managing strategic IT budgets, and building empowered, high-performing teams. Key Responsibilities: Drive a technology and AI-led transformation , delivering secure, scalable digital solutions. Lead global cybersecurity, data protection … IT programmes , vendor relationships, and risk management frameworks. Shape the organisation’s AI strategy and explore emerging technologies for impact. You’ll Bring: Deep knowledge of IT infrastructure, digital systems, and data governance . Expertise in UK/EU GDPR, ISO27001 , and cybersecurity best practices. Strong background in enterprise architecture and legacy system transformation. Strategic leadership experience More ❯

Inside IR35 Duration: 12 months + extension Location: 2 days onsite (London), 3 days remote We are looking for a skilled Database Architect to design and build robust data systems, including databases, data lakes, and enterprise integrations across platforms such as Elastic, Oracle, and ServiceNow. This role will be central to driving data architecture, system design, and migration efforts … build scalable data architectures, including databases and data lakes. Architect and implement integrations between Elastic, Oracle, ServiceNow, and other enterprise platforms. Lead data migration strategies and execution across legacy and modern systems. Develop data models, schemas, and pipelines to support analytics and operational needs. Ensure security, performance, and scalability in all architecture components. Requirements: Proven experience as a More ❯

evolution of the DealCloud CRM platformdriving configuration, integration, and continuous improvement across the business. This is a hands-on, configuration-heavy role ideal for someone who thrives on aligning systems with business strategy in a fast-paced, data-rich environment. Key Responsibilities: Take ownership of the DealCloud CRM platform, managing configuration, user roles, workflows, and customisations. Optimise platform performance … by maintaining system integrations and monitoring reliability. Lead data migration from legacy systemsensuring high standards of accuracy, integrity, and consistency. Partner with Investment Bankers, Ops, Business Support and IT to translate business needs into platform solutions. Deliver an effective change and release management process to support ongoing platform evolution. Provide training, documentation, and first-line support to ensure … modern release processes. Excellent communication and stakeholder engagement skills. Experience in investment banking or financial services environments. Familiar with Microsoft Office Suite and standard business applications. Degree in Information Systems or similar (2:1 or above preferred). For a full consultation on this role please email your CV to Arc. More ❯

transformation to standardise processes and replace legacy systems. Reporting to cross-functional teams, you’ll act as a key liaison with the Group Procurement & Supply Chain teams, Systems Integrator, and other business partners. Key responsibilities include: Supporting the design and deployment of S/4HANA solutions, ensuring alignment with local and group requirements Acting as the UK … Chain project representative to guarantee stakeholder needs are addressed Identifying and driving opportunities for process improvement and change adoption Facilitating upskilling and knowledge-sharing for colleagues transitioning to new systems Skills & Experience Proven experience in Procurement & Supply Chain roles Must have hands-on expertise with S/4HANA or SAP products Strong communication, presentation, and project management skills Background More ❯