1 to 25 of 28 Legacy Systems Jobs in Hertfordshire

finance. Our clients operate at the highest levels of global markets, managing billions in assets, yet they remain constrained by legacy systems that are slow, fragmented, and outdated. Cornspring is redefining Family Office services by applying state-of-the-art generative AI and Large Language Models … looking for an exceptional Senior Software Engineer with a strong ML and LLM focus, and the ability to build production-grade AI systems end-to-end. This is a pivotal role in which you will shape core system architecture, design and deploy AI-driven features, and work hands ...

maintain technical publication stylesheets using PERL Design, develop, and optimize database solutions to store and retrieve company information Install, configure, and maintain information systems to ensure reliability and performance Analyse, plan, and define data architecture frameworks, including security, reference data, metadata, and master data Migrate data from legacy systems to new platforms and solutions Improve system performance through testing, troubleshooting, and integration of new components Optimize both new and existing database systems Define and maintain security, backup, and recovery procedures Collaborate with cross-functional teams to define data strategies, build models, and support stakeholder ...

fostering a culture of continuous improvement and knowledge sharing. The Core Banking Platform team work together to curate and deliver the future core banking systems for the UK's largest retail bank such as setting up a new Cloud native Microservices platform that will function as the epicenter … tools and Cloud technologies. Day to day, you will: * Contribute to the provisioning of data products to support an exit from legacy systems to a key strategic platform * Design and Architectural Planning: Lead the design and architectural planning of our infrastructure, focusing on scalability, reliability, and performance. ...

fostering a culture of continuous improvement and knowledge sharing. The Core Banking Platform team work together to curate and deliver the future core banking systems for the UK's largest retail bank such as setting up a new Cloud native Microservices platform that will function as the epicenter … tools and Cloud technologies. Day to day, you will: * Contribute to the provisioning of data products to support an exit from legacy systems to a key strategic platform * Design and Architectural Planning: Lead the design and architectural planning of our infrastructure, focusing on scalability, reliability, and performance. ...

critical projects. Key Responsibilities: Code technical publication stylesheets using PERL language Develop database solutions to store and retrieve company information Install and configure information systems to ensure functionality Analysing, planning, and defining data architecture framework, including security, reference data, metadata, and master data Migrate data from legacy systems to new solutions Improve system performance by conducting tests, troubleshooting and integrating new elements Optimize new and current database systems Define security and backup procedures Collaborating with other teams within the organisation to devise and implement data strategies, build models, and assess shareholder needs ...

initial 6-month contract basis. The company: We’re working with a leading defence and aerospace organization that designs, develops, and delivers advanced missile systems and related technologies. It supports national and allied armed forces with cutting-edge, integrated solutions across air, land, and sea domains. The role: Code … technical publication stylesheets using PERL language Develop database solutions to store and retrieve company information Install and configure information systems to ensure functionality Analysing, planning, and defining data architecture framework, including security, reference data, metadata, and master data Migrate data from legacy systems to new solutions ...

initial 6-month contract basis. The company: Were working with a leading defence and aerospace organization that designs, develops, and delivers advanced missile systems and related technologies. It supports national and allied armed forces with cutting-edge, integrated solutions across air, land, and sea domains. The role: Code technical … publication stylesheets using PERL language Develop database solutions to store and retrieve company information Install and configure information systems to ensure functionality Analysing, planning, and defining data architecture framework, including security, reference data, metadata, and master data Migrate data from legacy systems to new solutions Improve ...

arisen for an experienced PERL Software Developer to join a leading defence engineering environment on a contract basis. This role supports technical publication systems and wider internal information tools used across complex programmes. The role You will be responsible for developing and maintaining PERL-based templates and stylesheets used … Supporting development of applications and reporting tools using C#, SQL, Java and PowerShell Designing and optimising database solutions Migrating data from legacy systems Analysing system requirements and improving performance Defining data structures, security and backup procedures Providing operational support for management information systems Collaborating with internal ...

Seeking a skilled Sage Intacct Consultant to assist with the implementation, configuration, and data migration of the Sage platform as part of an ongoing systems transformation project. This role will bridge the gap between IT operations and business users, ensuring a smooth transition to the new environment. Role … business, working closely with internal stakeholders and external vendors. Assist in data migration activities — cleansing, mapping, validation, and import from legacy systems into Sage. Provide technical and user support, troubleshooting issues during implementation and post-go-live. Work with IT and Finance teams to ensure system integrations ...

data centres and cloud environments. Key focus areas include: Leading the migration from Nomad to Kubernetes across a hybrid infrastructure environment Designing highly available systems that support real-time trading operations Expanding the firm's cloud footprint (AWS/Azure/GCP) while maintaining on-prem capabilities Owning projects … from design through production What you'll need: Production experience with Kubernetes (EKS/AKS/GKE or bare-metal) Strong Linux systems background; Windows experience is beneficial Track record delivering cloud migrations and managing hybrid environments Experience supporting mission-critical, highly available systems What makes this different ...

data centres and cloud environments. Key focus areas include: Leading the migration from Nomad to Kubernetes across a hybrid infrastructure environment Designing highly available systems that support real-time trading operations Expanding the firm's cloud footprint (AWS/Azure/GCP) while maintaining on-prem capabilities Owning projects … from design through production What you'll need: Production experience with Kubernetes (EKS/AKS/GKE or bare-metal) Strong Linux systems background; Windows experience is beneficial Track record delivering cloud migrations and managing hybrid environments Experience supporting mission-critical, highly available systems What makes this different ...

world's most complex digital problems, along with our collaborative, people-first approach, enables enterprises to build breakthrough products and modernise legacy systems by unleashing the power of AI. Today, our team of 500 experts in 20+ countries is trusted by leading enterprises including Lululemon, Puma ...

coding domain languages. Responsibilities Code technical publication stylesheets using PERL language Develop database solutions to store and retrieve company information Install and configure information systems to ensure functionality Analysing, planning, and defining data architecture framework, including security, reference data, metadata, and master data Migrate data from Legacy systems to new solutions Improve system performance by conducting tests, troubleshooting and integrating new elements Optimize new and current database systems Define security and backup procedures Collaborating with other teams within the organisation to devise and implement data strategies, build models, and assess shareholder needs ...

solutions that balance performance, scalability, and security. Partnering with in-house and nearshore development teams to shape design and delivery. Transforming legacy systems into next-generation cloud-native solutions. Producing detailed design documentation — from high to low level. Collaborating with enterprise architects to align projects with long ...

coding domain languages. Responsibilities: Code technical publication stylesheets using PERL language Develop database solutions to store and retrieve company information Install and configure information systems to ensure functionality Analysing, planning, and defining data architecture framework, including security, reference data, metadata, and master data Migrate data from Legacy systems to new solutions Improve system performance by conducting tests, troubleshooting and integrating new elements Optimize new and current database systems Define security and backup procedures Collaborating with other teams within the organisation to devise and implement data strategies, build models, and assess shareholder needs ...

coding domain languages. Responsibilities: Code technical publication stylesheets using PERL language Develop database solutions to store and retrieve company information Install and configure information systems to ensure functionality Analysing, planning, and defining data architecture framework, including security, reference data, metadata, and master data Migrate data from legacy systems to new solutions Improve system performance by conducting tests, troubleshooting and integrating new elements Optimize new and current database systems Define security and backup procedures Collaborating with other teams within the organisation to devise and implement data strategies, build models, and assess shareholder needs ...

coding domain languages. Responsibilities Code technical publication stylesheets using PERL language Develop database solutions to store and retrieve company information Install and configure information systems to ensure functionality Analysing, planning, and defining data architecture framework, including security, reference data, metadata, and master data Migrate data from legacy systems to new solutions Improve system performance by conducting tests, troubleshooting and integrating new elements Optimize new and current database systems Define security and backup procedures Collaborating with other teams within the organisation to devise and implement data strategies, build models, and assess shareholder needs ...

Develop and maintain technical publication stylesheets using PERL . Design and implement database solutions for storing and retrieving company information. Install and configure information systems to ensure optimal functionality. Analyse, plan, and define data architecture frameworks, including security and metadata. Migrate data from legacy systems ...

/Regulatory Technology team within a leading global investment bank working on business-critical regulatory reporting platforms. You'll help modernise legacy systems and build strategic, cloud-based data solutions used across the firm. You'll work in a collaborative Agile squad focused on Java services, Spark ...

recruiting for an experienced Technical Consultant to support a complex banking accreditation and compliance programme for a retail organisation. Key responsibilities include: Reviewing existing systems, processes, and documentation against banking accreditation standards Performing functional and technical gap analysis, owning remediation recommendations Reverse engineering legacy applications to understand … transactional data generation and file outputs consumed by banking systems Assessing payment, security, and integration solutions for compliance Supporting legacy system enhancement vs replacement decision-making Required experience: Knowledge of banking accreditation, PCI DSS/payment compliance COBOL, CICS, Datacom DB Ability to translate regulatory and technical ...

days a week onsiteDay Rate: £400 - £500 inside IR35BPSS clearance required An exciting opportunity to join a leading aerospace and defence organisation as a Systems Administrator, supporting complex engineering environments and mission-critical infrastructure. You'll work across modern and legacy systems, ensuring reliable deployment, configuration … platforms that underpin advanced engineering projects. Key Responsibilities Manage version-controlled scripting using Git Maintain and extend Ansible-based configuration management Deploy systems using Autoinstall or similar tooling Administer Ubuntu 20+ or other Debian-based environments Build and run containerised services using Podman (incl. hardware passthrough and QEMU emulation ...

elite individual contributor who can look at this scale not just as a traffic challenge, but as an abstraction challenge. You will design the systems that define how our players compete, ensuring our architecture is decoupled, extensible, and capable of handling the next 100 million users. What You Will … designing, developing, and deploying robust APIs and microservices in production. Golang experience is highly preferred; Architectural Vision: Proven experience re-architecting legacy systems into distributed, modern microservices. You understand Domain-Driven Design (DDD) and know how to draw the boundaries between services correctly; Scaling Instincts: You understand ...

elite individual contributor who can look at this scale not just as a traffic challenge, but as an abstraction challenge. You will design the systems that define how our players compete, ensuring our architecture is decoupled, extensible, and capable of handling the next 100 million users. What You Will … designing, developing, and deploying robust APIs and microservices in production. Golang experience is highly preferred; Architectural Vision: Proven experience re-architecting legacy systems into distributed, modern microservices. You understand Domain-Driven Design (DDD) and know how to draw the boundaries between services correctly; Scaling Instincts: You understand ...

elite individual contributor who can look at this scale not just as a traffic challenge, but as an abstraction challenge. You will design the systems that define how our players compete, ensuring our architecture is decoupled, extensible, and capable of handling the next 100 million users. What You Will … designing, developing, and deploying robust APIs and microservices in production. Golang experience is highly preferred; Architectural Vision: Proven experience re-architecting legacy systems into distributed, modern microservices. You understand Domain-Driven Design (DDD) and know how to draw the boundaries between services correctly; Scaling Instincts: You understand ...

days a week in Central London. What experiences you will gain Lead complex implementation projects for multinational clients migrating from Legacy ERP systems to an AI Finance Platform Apply financial systems expertise to navigate complex client environments and ensure smooth onboarding and transitions Build trusted relationships … What background should you have before you press apply! Qualified Accountant (ACA, ACCA, CIMA) Experience supporting clients and managing multiple projects Experience implementing finance systems and passionate about modernising finance systems Deep understanding of core accounting principles and how they translate into system requirements Confident and credible ...