Lead Data Engineer – Migration (Sc Or Dv Cleared)

La Fosse Associates; London Borough of Wandsworth; On-site; GBP 111,000 - 166,000; Full time

Job summary

La Fosse Associates supports a Central Government organisation on a major technology transformation programme and seeks a Lead Data Engineer to own the data migration workstream. You will drive end-to-end migration of data from legacy systems into a cloud-based platform, collaborating with engineering, architecture, testing, product and delivery teams.

This hands-on leadership role requires defining the migration approach, data structures, mapping, quality and execution, with strong SQL and

Qualifications

• Strong SQL capability and understanding of relational data models.
• Experience migrating data from legacy platforms into cloud environments.
• Familiarity with ETL/ELT technologies and modern data pipelines.
• Experience with AWS or comparable cloud environments.
• Ability to lead cross-functional teams in Agile/ multidisciplinary programmes.

Responsibilities

• Own end-to-end data migration strategy and delivery plan.
• Lead migration from legacy/on-premise systems into modern cloud platforms.
• Data discovery, profiling, mapping and transformation.
• Define migration rules, reconciliation processes and acceptance criteria.
• Manage data quality, cleansing and remediation.
• Design and oversee ETL/ELT processes and migration pipelines.
• Plan migration rehearsals, cutover and rollback approaches.

Skills

SQL

Relational databases

Data migration

ETL/ELT

AWS

Data mapping

Data transformation

Data validation

Data reconciliation

Agile delivery

Job description

Lead Data Engineer – Migration (SC or DV Cleared)

Contract | Inside IR35 | SC or DV Clearance Essential

La Fosse is supporting a Central Government organisation a major technology transformation programme and we are looking for an experienced Data Migration Lead to take ownership of a complex data migration workstream.

This is an opportunity to work on a significant programme, modernising legacy technology and moving critical services and data onto a modern cloud-based platform.

The role

You will lead the end-to-end migration of data from legacy systems into a new cloud environment, working closely with engineering, architecture, testing, product and delivery teams.

This is a hands‑on leadership role requiring someone who can define the migration approach while also getting into the detail of data structures, mapping, quality and migration execution.

Key responsibilities will include:

• Owning the end-to-end data migration strategy and delivery plan
• Leading migration from legacy/on-premise systems into modern cloud platforms
• Data discovery, profiling, mapping and transformation
• Working extensively with SQL and relational databases
• Defining migration rules, reconciliation processes and acceptance criteria
• Managing data quality, cleansing and remediation activities
• Designing and overseeing ETL/ELT processes and migration pipelines
• Planning migration rehearsals, cutover and rollback approaches
• Ensuring data integrity and completeness throughout the migration
• Working closely with Data Architects, Software Engineers, Test teams and Delivery Managers
• Identifying migration risks, dependencies and technical constraints
• Supporting governance and documentation within a highly secure environment

Experience we’re looking for

We are particularly interested in people with experience of:

• Migrating data from legacy platforms into cloud environments
• Strong SQL capability and understanding of relational data models
• Data mapping, transformation, validation and reconciliation
• ETL/ELT technologies and modern data pipelines
• AWS or comparable cloud environments
• Working across engineering, architecture and testing teams
• Delivering within Agile / multidisciplinary technology programmes
• Highly regulated, government, policing, defence or other secure environments
• Experience of large-scale case management, operational or highly sensitive data environments would be particularly relevant.

Clearance

Current SC or DV clearance is essential.

Due to the nature and timescales of the programme, we are specifically looking for people who already hold active UK security clearance.

Why this role?

This is a chance to take ownership of a critical workstream within a major transformation programme, working on technology that directly supports the Agency’s operational mission.

Lead Data Engineer – Migration (SC or DV Cleared) Wandsworth