7 of 7 Permanent Legacy Systems Jobs in West London

Architect to shape the technology behind our Gas & Power Trading International (GPTI) business. This role sits across the full trading landscape from front-office systems to back-office processing, data platforms, integrations and infrastructure. Youll take ownership of the technology roadmap, with a strong focus on the Endur … technology is aligned, scalable and fit for the future. Youll play a key role in modernising our estate moving from legacy systems to more cloud-based and hybrid solutions while keeping performance and reliability at the level required for real-time trading. Were also looking for someone ...

environments Define, implement, and enforce robust SOPs for backups, disaster recovery, patch management, and hardware lifecycle Ensure reliable connectivity between legacy core systems and modern application platforms Oversee internal security monitoring and collaborate with external security partners (SOC/MDR) Lead incident and problem management activities, including … including incident, problem, and change management processes Experience with ITSM tools (e.g., Jira) and working within SLA-driven environments Familiarity with legacy systems connectivity (e.g., AS/400/iSeries) is highly beneficial ...

enterprise-grade solutions across cloud, hybrid and on-prem environments. Working alongside experienced architects, youll help shape modern architectures connecting legacy systems with emerging technologies, including AI. This is a client-facing role with strong progression into a fully-fledged Solution Architect position. Key Responsibilities Contribute ...

Webhook integrations, and Event-Driven Architecture using Kafka or Azure Event Hubs. Legacy-to-Cloud: Demonstrable experience migrating legacy monolithic systems into containerised microservices architectures. Tooling: Proficient in Visio or LucidChart for architectural modelling; disciplined in Confluence for documentation practices. Duties Blueprint Delivery: Develop high … deliverables meet internal quality, security, and scalability thresholds. Data Integration Leadership: Orchestrate complex data mapping between legacy IBM iSeries (DB2/RPG) systems and modern API middleware - a technically demanding challenge requiring deep integration expertise. Systemic Remediation: Lead deep-dive investigations into recurring platform failures error surges ...

Webhook integrations, and Event-Driven Architecture using Kafka or Azure Event Hubs. Legacy-to-Cloud: Demonstrable experience migrating legacy monolithic systems into containerised microservices architectures. Tooling: Proficient in Visio or LucidChart for architectural modelling; disciplined in Confluence for documentation practices. Duties Blueprint Delivery: Develop high … deliverables meet internal quality, security, and scalability thresholds. Data Integration Leadership: Orchestrate complex data mapping between legacy IBM iSeries (DB2/RPG) systems and modern API middleware - a technically demanding challenge requiring deep integration expertise. Systemic Remediation: Lead deep-dive investigations into recurring platform failures error surges ...

Webhook integrations, and Event-Driven Architecture using Kafka or Azure Event Hubs. Legacy-to-Cloud: Demonstrable experience migrating legacy monolithic systems into containerised microservices architectures. Tooling: Proficient in Visio or LucidChart for architectural modelling; disciplined in Confluence for documentation practices. Duties Blueprint Delivery: Develop high … deliverables meet internal quality, security, and scalability thresholds. Data Integration Leadership: Orchestrate complex data mapping between legacy IBM iSeries (DB2/RPG) systems and modern API middleware - a technically demanding challenge requiring deep integration expertise. Systemic Remediation: Lead deep-dive investigations into recurring platform failures error surges ...

defined standards for quality, security, and scalability. Data Integration Leadership: Lead complex data integration efforts, mapping legacy IBM iSeries (DB2/RPG) systems with modern API-driven middleware—requiring strong technical and architectural expertise. Systemic Remediation: Investigate recurring platform issues such as 5xx error spikes, latency problems … based integrations, and event-driven architectures using Kafka or Azure Event Hubs. Legacy-to-Cloud: Proven experience transforming legacy monolithic systems into containerised microservices. Tooling: Skilled in Visio or Lucidchart for architecture design, with disciplined use of Confluence for documentation. Certification: AZ-305 (Azure Solutions ...