14 of 14 Permanent 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markets, managing billions in assets, yet they remain constrained by legacy systems that are slow, fragmented, and outdated.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 ...

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. ...

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 ...

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 ...

/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 ...

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 ...

strategy. Define and implement security standards, policies, and best practices for cloud infrastructure, SaaS applications, and internal tooling. Engineer, implement, and continuously tune security systems (SIEM, EDR, etc.) for continuous threat detection and automated response. Lead technical remediation efforts, working with engineering teams to implement fixes for vulnerabilities … automation skills (e.g. Python, PowerShell, Terraform scripts, Yara) to implement security automations, detection rules, and guardrails. Solid experience with designing, implementing, and tuning systems for incident response, detection engineering, and vulnerability management. Strong understanding of secure software development lifecycle (SDLC), and ability to work closely with dev/ ...

sessions (sequence gaps, rejects, drops) Work with Network and Infrastructure teams on VPNs and cross-connects Support migration of legacy trading systems Required Experience 3–5 years in FIX Connectivity, Integration, or Trading Production Support Strong FIX Protocol knowledge (session & application layers) Linux/Unix experience with ...