26 to 50 of 252 Legacy Systems Jobs in England

solutions that benefit the businessThe role does not involve budget responsibilityDrive the design and development of system architecture, work with end-users of the systems, and enhance the quality of deliverables Ensure staff follows Citi documented policy and procedures as well as maintain desktop procedures and supporting documentation … trading and quant teamsKey Skills and Experience requiredProven understanding of FX highly preferredUnderstanding of ultra low-latency development practicesProven track record of building new systems, replacing legacy systems and renovating existing systemsThe candidate will have systems (software, hardware, networks) knowledge required to define solutions ...

settlements, inventory/position management, collateral optimization, liquidity and risk management. Architecture & Design: Own the architecture and design of enterprise applications, focusing on distributed systems, and scalable solutions that adapt to changing market conditions. Ensure adherence to technical design, application development standards, and quality processes. Project & Product Delivery: Manage … operations stakeholders, and other partner technology teams to gather requirements, manage expectations, and deliver effective solutions. Identify and mitigate potential risks related to systems, processes, and regulatory compliance. System Optimization: Identify system bottlenecks and deficiencies, devising and implementing robust solutions to enhance resiliency, performance, and scalability. Provide technical consultation ...

greatest impact, efficient use of resource, and alignment to business structuresDrive the design and development of system architecture, work with end-users of the systems, and enhance the quality of deliverables Ensure staff follows Citi documented policy and procedures as well as maintain desktop procedures and supporting documentation … that is seen as the engineering role model for the organizationAbility to work directly with trading and quant teamsProven track record of building new systems, replacing legacy systems and renovating existing systemsThe candidate will have a strong systems (software, hardware, networks) knowledge required to define ...

category-defining platform for debt markets worldwide.We're looking for a Senior II Product Engineer to take broad technical ownership of the backend systems powering 9fin's platform.You will sit between our Senior and Staff engineering tracks. You will own meaningful systems end to end, lead multi sprint … financial and legal domain experts.This role suits someone who has already grown beyond a typical senior remit. You enjoy diving into distributed systems problems, and you have firsthand experience scaling services under real production load.What you'll doOwn the design and delivery of significant backend systems and services ...

design, build, and operate scalable data pipelines and data products, enabling a modern data mesh architecture. The role focuses on integrating legacy systems with cloud-native platforms to support analytics, reporting, and domain-owned data products.Primary Skills• Strong experience with Databricks (Spark, PySpark/SQL) and data … data engineering best practices.Key Responsibilities• Build and maintain batch and streaming data pipelines from legacy mainframe DB2 and on prem SQL Server systems into an AWS-based data lake.• Implement real-time ingestion using Confluent Kafka and land data in Amazon S3.• Develop data transformations and analytics ...

engineering and technology sector. We deliver enterprise technology solutions that help government agencies, defence organisations and commercial entities modernise operations, migrate legacy systems, and transform service delivery. About the Role The OSM Migration Service Lead is a senior technical leadership position responsible for designing, planning, executing … services with business objectives and contractual obligations. Technical Architecture & Design Design target-state operational architectures incorporating modern IT infrastructure, cloud services and integrated systems Evaluate migration approaches (phased, big-bang, hybrid) and recommend optimal strategies based on risk, timeline and cost factors Ensure migrated services meet security requirements including ...

experience you'll bring:Familiarity with public sector regulations, compliance (e.g., GDPR, FOIA), and procurement processes.Knowledge of common public sector challenges: legacy systems, citizen engagement, case management, grants, licensing.Proficiency in Salesforce particularly Service Cloud, Experience Cloud, and Public Sector Solutions.Strong grasp of Data Cloud, MuleSoft, OmniStudio ...

site Salary: Competitive, depending on experience Job Type: Permanent The Opportunity We are recruiting for an exciting opportunity for a Mid-Level IT Systems Developer to join a small, collaborative IT team within an established organisation. This is a great role for a developer who has moved beyond junior … level and is looking for the opportunity to take ownership of defined development work, contribute to important business systems, and play an active role in improving and modernising existing technology. The environment offers plenty of scope to broaden your technical knowledge, work across a range of systems ...

domain of emerging technologies and their best practices, with a focus on practical implementation and integration Shows a proficient understanding of existing data management systems and continuous learning to understand new data management systems Strong proficiency in hands-on development using industry-standard tools and languages (e.g. … data lake optimization Experience architecting and implementing enterprise-scale data warehouses on cloud platforms (e.g., AWS, Azure, GCP), including migration from legacy systems Advanced proficiency in designing and optimizing data models for analytics, reporting, and business intelligence use cases Demonstrated ability to automate data pipeline deployment ...

technical troubleshooting with the ability to think beyond routine or conventional approaches to build solutions or break down technical problems.Build and support AI-native systems to expand our eTrading capabilities, including the development of scalable AI platforms for trading and the modernization of incumbent systems with AI tooling.Engage … directly with Credit Sales and Trading business partners to understand their strategy and establish technical solutions in partnership with Product teams.Architect and build new systems hands-on, leveraging AI-assisted coding and modern engineering practices.Develop secure, high-quality production code, and review and debug code written by others.Identify opportunities ...

capabilities are integrated into modern software platforms.If you enjoy working where architecture, APIs, DevOps, and AI meet, and you care about building systems that are secure, operable, and genuinely useful, this role offers the chance to have real impact. What you'll be doing Your focus will … enabling AI within modern, API‐first software platforms, particularly where legacy or existing systems need to evolve to support new capabilities safely and effectively.You will:Provide technical leadership across AI‐enabled software and DevOps engineering teamsSet architectural direction for API‐first design, system integration, and platform enablement ...

evolution Build and enhance operator-facing applications, dashboards and visualisation tools displaying real-time system data Own application logic, workflows and behaviour within production systems Contribute to overall software architecture, technical standards and development best practices Implement and maintain version control and CI/CD pipelines using GitHub Ensure … resilient, with a strong emphasis on fault handling and diagnostics Collaborate with controls, robotics and mechanical engineers to ensure seamless integration with physical systems Support testing, commissioning and deployment of software releases Mentor junior developers and contribute to technical decision-making within the team Required Skills & Experience Software Development ...

reusable and scalable Salesforce components. Perform code reviews and enforce development best practices. Data Migration & Integration Support data migration activities from legacy systems to Salesforce. Design and validate ETL processes and data transformation rules. Work with integration teams to implement API-based integrations. Develop and support data ...

practices. Investigate and resolve defects identified during functional, integration, migration and production testing. Support reconciliation and validation of financial calculations between legacy systems and Vault. Analyse existing product behaviour and legacy-system rules when supporting product migration. Contribute to technical design discussions and identify potential … behaviour with both technical and non-technical stakeholders. Highly Desirable Experience implementing Lending and/or Savings products. Experience migrating financial products from legacy core banking platforms onto Thought Machine Vault. Understanding of Lending and Savings concepts, including: Interest accrual and application. Repayment schedules. Fixed and variable interest ...

Developer Location: Cheltenham (Hybrid) Salary: £65k As a Senior Developer, you will play a key role in supporting, maintaining, and evolving our core business systems and integrations. Working within the Business Systems team, you will deliver reliable, scalable solutions that support day-to-day operations, improve user experience … enable business growth. This is a hands-on, varied role combining development, database optimisation, and systems integration. You will collaborate closely with stakeholders across the business, contributing to both new initiatives and continuous improvement of existing platforms. Your responsibilities as a Senior Developer will be: Develop, maintain, and enhance ...

Analyst who knows how to bring structure to complexity. Youll join a busy Logistics & IT function delivering business-critical initiatives across billing platforms, operational systems, and wider technology change. This isnt a note-taker BA role we need someone who can lead from the front, run workshops confidently, challenge … constructively, and translate ambiguity into clear, actionable requirements. If you enjoy untangling complex systems, aligning stakeholders, and making sure projects actually deliver what theyre supposed to youll fit right in. What Youll Be Doing Leading stakeholder workshops across IT and operational teams Capturing, documenting and validating business and system ...

term technology strategy to meet the growing demands of the business. The Digital Technology Director will lead a dedicated technology leadership team (Head of Systems & Architecture, Head of Projects, Head of Data), manage relationships with third-party IT service providers and major software vendors, and oversee the deployment … commercial acumen and strategic foresight to balance innovation with ROI and future-proofing.Technology ExpertiseDeep expertise in enterprise architecture, including integration of legacy systems with modern platforms.Strong understanding of SaaS enterprise systems, cloud technologies, and data-driven ecosystems.Experience managing both legacy and modern technology environments ...

role is key to supporting the design, build, and validation of data migration pipelines, enabling the successful transition of data from legacy systems to modern cloud platforms. You will contribute to ensuring data quality, integrity, and performance, particularly through structured testing and validation activities.You will work closely … stakeholders to implement migration solutionsAssist in planning and executing data migration tasks and deliverablesData Migration EngineeringBuild and maintain data migration pipelines from legacy data warehouses to AWS-based platformsDevelop ETL/ELT pipelines using:AWS GluePython/PySparkSQLYAML configurationsSupport execution of bulk data migrations and incremental/delta ...

when you fail, we all learn, then were eager to hear from you. We are looking to expand our Systems Engineering capability in all levels of experience and are keen to hear from you if you feel youre ready to take the next step in your career. You must … Sole UK National and qualify for Security Clearance. Job Description The Systems Engineer will work together with the customer contributing to requirements management and problem understanding, supporting facilities engineering and major infrastructure projects. This role may include but is not limited to: requirements management , ensure projects are properly scoped ...

management, branching strategies, and collaboration. Strong Python scripting for data automation, orchestration, and pipeline optimisation. Working knowledge of C# for maintaining/modifying legacy Windows applications. Experience with Power BI, QuickSight, or similar tools for analytics. Adherence to ETL/data management best practices (e.g., incremental loads, error … GDPR, CCPA) and security protocols (encryption, RBAC). Agile/SCRUM practitioner with experience in offshore team collaboration. Ability to migrate legacy systems to modern cloud architectures. Anticipates issues, recommends pragmatic solutions, and writes clean, reusable code. Articulate with stakeholders, from engineers to non-technical leaders. Manages ...

management, branching strategies, and collaboration. Strong Python scripting for data automation, orchestration, and pipeline optimisation. Working knowledge of C# for maintaining/modifying legacy Windows applications. Experience with Power BI, QuickSight, or similar tools for analytics. Adherence to ETL/data management best practices (e.g., incremental loads, error … GDPR, CCPA) and security protocols (encryption, RBAC). Agile/SCRUM practitioner with experience in offshore team collaboration. Ability to migrate legacy systems to modern cloud architectures. Anticipates issues, recommends pragmatic solutions, and writes clean, reusable code. Articulate with stakeholders, from engineers to non-technical leaders. Manages ...

client as they embark on one of the most significant technology transformation programmes in their history. As part of a move away from legacy Oracle platforms towards a modern SaaS-first ecosystem, we're looking for a Cloud Infrastructure Architect to help define the future cloud strategy … Join? This is a unique opportunity to join us during a pivotal period of change. The organisation is replacing longstanding legacy systems, investing in market-leading SaaS platforms, implementing Snowflake as its strategic data platform, exploring AI use cases through Snowflake Cortex, and preparing for a major ...

shaping greenfield and brownfield development initiatives, driving the shift to a modern DevOps culture, supporting major cloud migrations, and transforming legacy systems to meet future business needs.As a key member of the senior leadership team, the Software Engineering Manager will also mentor teams through change and champion … practices and champion DevOps culture across teams in transition.Manage both greenfield cloud-native projects and existing legacy platform enhancements.Guide the migration of systems and services into Microsoft Azure using modern design principles.Support architectural decisions around microservices, scalability, and maintainability.Act as a technical mentor to engineers ...

data loaded into Workday, ensuring consistency with source systems.Engage regularly with clients throughout the project lifecycle, ensuring a smooth transition from legacy systems to Workday Financials.Manage multiple tasks with limited direction while keeping stakeholders informed of progress, risks, and issues.Participate in training and internal knowledge-sharing initiatives ...

government, healthcare, education, defence, etc.Familiarity with public sector regulations, compliance (e.g., GDPR, FOIA), and procurement processes.Knowledge of common public sector challenges: legacy systems, citizen engagement, case management, grants, licensing.Proficiency in key Salesforce architecture areas, particularly Service Cloud, Experience Cloud, and Public Sector Cloud.Public Sector Solutions Accredited Professional ...