At a Glance
- Tasks: Lead data migrations, ensuring accuracy and integrity while collaborating with various teams.
- Company: Join Citation Group, a forward-thinking company enhancing its data and AI capabilities.
- Benefits: Enjoy 25 days holiday, birthday off, healthcare plan, and family support perks.
- Other info: Opportunity for growth and learning in a supportive, innovative team.
- Why this job: Make a real impact by solving complex data challenges in a dynamic environment.
- Qualifications: Strong SQL skills, analytical mindset, and experience with ETL/ELT tools required.
The predicted salary is between 45000 - 55000 £ per year.
The Citation Group is building out its data and AI capabilities to be best in class. As part of this, we're looking for a Data Migration Engineer to join the data team and support in moving data safely and accurately between systems as we consolidate and modernise our platform landscape.
This isn't a generic ETL role. You'll be working on live migrations between operational systems (CRM, billing, and platform migrations) where the real risk isn't moving the data — it's the things that only surface once it lands: automation overwriting values post-import, subscription or contract logic that doesn't map cleanly, validation rules that silently reject or reshape records. You'll work closely with the Head of Data Migrations, data owners, and platform specialists (Salesforce, Chargebee, Dynamics) to make sure those gaps are found and designed for before cutover, not discovered during UAT.
We're looking for someone who's naturally curious about how systems actually work under the hood — not satisfied with a field-to-field mapping sheet until they understand the logic, constraints, and automation behind both ends of the migration.
Responsibilities
- Lead structured data discovery and profiling at the start of every migration — surfacing quality, completeness, and integrity issues while there's still time to remediate them, and quantifying the remediation effort involved.
- Build detailed source-to-target data mappings grounded in a genuine working understanding of both systems — not just field lists, but the underlying logic, constraints, and assumptions each platform makes.
- Identify where source and target behave differently (validation rules, required fields, relationship structures, calculated vs. stored values, automation-driven overwrites) during discovery, and design for it rather than letting it surface as a defect in testing.
- Build and maintain the ETL/ELT pipelines that move data between systems, including transformation logic for edge cases (e.g. multiple active records per customer, hardcoded vs. derived fields).
- Own reconciliation and validation between source and target post-migration, including tracing discrepancies back to root cause (data issue vs. platform automation vs. mapping error).
- Document migration logic, mapping decisions, and known system quirks so they're reusable across future migrations.
- Work with data owners to drive cleanup of quality issues ahead of cutover.
- Support cutover planning and execution, including rollback considerations.
The Person
We're looking for someone who can roll their sleeves up and dig into both the data and the systems around it. In addition, the successful candidate should have:
- Excellent writing and communication skills with strong attention to detail — you'll need to explain system-behaviour gaps clearly to non-technical stakeholders.
- Experience writing, troubleshooting, and debugging advanced SQL queries.
- A track record of going beyond field-level mapping to understand why two systems behave differently — validation logic, automation, calculated fields, relationship structures.
- Outstanding analytical and problem-solving skills, particularly diagnosing whether an issue is a data problem, a mapping problem, or a platform automation problem.
- Experience with ETL/ELT tools and data migration projects specifically (not just general pipeline building).
- Programming experience in Python.
- Comfort working with ambiguity — migration requirements shift as discovery uncovers new system behaviour, and you'll need to adapt scope calmly rather than treat it as scope creep.
Skills and experience we'd love you to have... but if not? We'll help you get there:
- Experience migrating data into or out of CRM/billing platforms such as Salesforce.
- Understanding of how declarative platform automation silently alter data post-import.
- Experience in relational cloud-based database technologies like Snowflake, BigQuery, Redshift.
- Understanding of cloud computing security concepts.
- Familiarity with DBT and Databricks.
- Experience working in an agile environment.
- Experience working with AI tools (Claude Code, Cortex, etc.) to accelerate migration analysis.
Here’s a taste of the perks we roll out for our extraordinary team members:
- 25 Days of Holiday, plus 8 Bank Holidays: Enjoy your well-deserved break with 25 days of holiday, plus those cherished bank holidays.
- Birthday Bliss: Enjoy your birthday in style with a day off, because at Citation, we believe in celebrating YOU.
- Post-Wedding Bliss: Extra weeks of holiday for newlyweds to bask in the glow of post-wedding happiness.
- Growing Families: Vouchers and special perks await to celebrate the newest addition to your family.
- Healthcare cash plan: Private healthcare to ensure your peace of mind and keep you feeling your best.
Locations
Data Migration Specialist in Cheshire, Wilmslow employer: The Citation Group
At Citation, we pride ourselves on fostering a vibrant and supportive work culture that empowers our employees to thrive. As a Data Engineer, you'll enjoy a hybrid working model, competitive benefits including 25 days holiday plus your birthday off, and opportunities for professional growth within a collaborative team dedicated to innovation in data and AI. Join us in our mission to revolutionise the HR and Health and Safety services sector while working alongside passionate colleagues who truly care about their roles and the success of the company.
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We think you need these skills to ace Data Migration Specialist in Cheshire, Wilmslow
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