Salary: £40,000 - 46,000 per year Requirements: Proven experience migrating data from mainframe environments to cloud platforms Strong hands-on expertise with IBM CDC (or similar replication tools) Deep understanding of mainframe data formats (EBCDIC, packed decimals, COBOL copybooks) Experience with AWS data services (Glue, Athena, Redshift) Strong Infrastructure-as-Code experience using Terraform CI/CD implementation experience (GitLab preferred) Experience with observability and monitoring (CloudWatch, Grafana) Expertise in data reconciliation, validation frameworks, and data quality assurance Strong understanding of data governance, security, and compliance Solid knowledge of Domain-Driven Design and modern data modelling practices Responsibilities: Design and implement Change Data Capture (CDC) pipelines using IBM CDC tools (or equivalents), including subscription management, bookmark handling, and replay strategies Lead complex data transformations including EBCDIC to UTF-8 encoding and packed decimal conversions with validation frameworks Architect and implement schema conversion and migration tooling for downstream analytics platforms (Glue, Athena, Redshift) Develop infrastructure-as-code solutions using Terraform and implement CI/CD pipelines via GitLab Plan and execute production cutovers with dual-run validation, reconciliation frameworks, rollback strategies, and governance controls Establish data governance standards including masking, encryption, IAM policies, and compliance controls Build observability dashboards (lag, throughput, error rates, cost) using CloudWatch, Grafana, and operational alerting frameworks Implement pre-migration validation tests and post-migration reconciliation against golden source systems Apply Domain-Driven Design (DDD) principles to design optimized data models and bounded contexts Produce architectural documentation covering end-to-end migration strategy and data lifecycle Technologies: AWS Redshift Architect CI/CD Cloud CloudWatch COBOL DDD GitLab Grafana IAM IBM Security Terraform More: We are a global leader in IT services, consulting, and business solutions, seeking an experienced Mainframe Data Architect to lead a critical modernization initiative. This hybrid role will focus on migrating data from legacy mainframe systems to modern cloud-based platforms. Joining our team means being at the intersection of architecture, engineering, and governance, where you will design scalable data migration strategies and ensure enterprise-grade reliability. We offer competitive market rates and a collaborative environment that values innovation and expertise. last updated 10 week of 2026