SQL Engineer / Data Migration Consultant

About the role

FDM Group is seeking a SQL Engineer/Data Migration Consultant to support the decommissioning of legacy applications and migration of data for a leading global investment bank. This 6‑month contract, based in London with a hybrid working model, requires a highly analytical engineer with strong SQL expertise and a structured problem‑solving approach.

Key responsibilities

• Extract, analyse, validate and migrate data from legacy applications to target platforms.
• Investigate data‑related issues affecting business processes, applications and downstream systems.
• Analyse large, complex datasets to identify anomalies, inconsistencies and data‑quality concerns.
• Navigate complex database schemas to understand relationships and determine optimal troubleshooting approaches.
• Design, develop, optimise and troubleshoot SQL queries across large‑scale environments.
• Validate data quality, integrity and completeness throughout migration and transformation activities.
• Conduct root‑cause analysis for issues where the source is not immediately apparent.
• Work with both structured and unstructured datasets to meet business and technical objectives.
• Translate business requirements into data queries, analysis activities and technical solutions.
• Communicate progress, risks and blockers proactively within a collaborative delivery team.

Required profile

• 5+ years of commercial experience in data engineering or data migration.
• Strong analytical mindset with a methodical approach to problem solving.
• Ability to work independently and as part of a cross‑functional team.
• Excellent communication skills for reporting progress and issues.

Required skills

• Strong SQL proficiency across large and complex datasets.
• Experience with data extraction, validation and migration processes.
• Ability to investigate and resolve data quality issues.
• Familiarity with both structured and unstructured data formats.