Data Mapping Analyst — Banking Migration

Yadimen Consulting Limited; Milton Keynes, Greater London; On-site; GBP 45,000 - 65,000; Full time

Job summary

Yadimen Consulting Limited is seeking an experienced Data Mapping Analyst to support a critical Banking Migration programme. You will play a key role in understanding banking application data, mapping data across workstreams, and ensuring accurate and compliant migration from legacy systems to new solutions.

This is an onshore UK-based role with direct engagement across engineering, business, and compliance stakeholders.

Qualifications

• Strong knowledge of banking applications and underlying data structures.
• Experience in data migration and ETL tooling.
• Understanding of data synchronisation and reconciliation across transfer files.
• Ability to design and execute database queries (Oracle/Mainframe).
• Familiarity with JCL queries and legacy mainframe environments.
• Understanding of regulatory compliance requirements in banking.

Responsibilities

• Develop a strong working knowledge of banking applications and the data underpinning them.
• Translate migration requirements into detailed dataattributes across workstreams.
• Understand and manage data synchronisation and reconciliation across data transfer files.
• Design and implement effective database queries to match, retrieve, and extract data.
• Identify database structural requirements by evaluating migration operations, applications, and engineering.
• Assess database implementation procedures for compliance with internal and external regulations.
• Oversee the end-to-end migration of data from legacy systems to new platforms.
• Support and provide consultancy to database engineering teams.
• Recommend improvements to JCL queries and Oracle/Mainframe database queries.

Job description

Data Mapping Analyst — Banking Migration

London / Milton/Keynes, United Kingdom | Posted on 06/01/2026

We are seeking an experienced Data MappingAnalyst to support a critical Banking Migration programme. You will play a keyrole in understanding banking application data, mapping data acrossworkstreams, and ensuring accurate and compliant migration from legacy systemsto new solutions. This is an onshore UK-based role with direct engagementacross engineering, business, and compliance stakeholders.

Requirements

KeyResponsibilities

• Develop a strong working knowledge of bankingapplications and the data underpinning them
• Translate migration requirements into detailed dataattributes across workstreams
• Understand and manage data synchronisation andreconciliation across data transfer files
• Design and implement effective database queries tomatch, retrieve, and extract data
• Identify database structural requirements by evaluatingmigration operations, applications, and engineering
• Assess database implementation procedures forcompliance with internal and external regulations
• Oversee the end-to-end migration of data from legacysystems to new platforms
• Support and provide consultancy to database engineeringteams
• Recommend improvements to JCL queries andOracle/Mainframe database queries

RequiredSkills & Experience

• Strong knowledge and understanding of bankingapplications and underlying data structures
• Demonstrable experience in data migration, includingETL tooling
• Solid understanding of data synchronisation andreconciliation across transfer files
• Ability to design and execute effective databasequeries (Oracle/Mainframe)
• Familiarity with JCL queries and legacy mainframeenvironments
• Understanding of regulatory compliance requirements ina banking context