Senior SQL / Dataform Conversion Engineer (Contractor)

Senior | Ref: ACC-CC-SQL01UK Contract
LocationUK-based. Fully remote
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Engagement Details

  • Bullet pointEngagement: Confidential Client — Azure to GCP Data Platform Migration
  • Bullet pointStart Date: 10 June 2026
  • Bullet pointDuration: Fixed-term to 30 September 2026
  • Bullet pointAvailability: Full-time, 5 days per week
  • Bullet pointLocation: UK-based. Fully remote
  • Bullet pointApplicants must have the right to work in the UK and be located in the UK

The Role

We are looking for an exceptional contractor who has done T-SQL-to-BigQuery conversion work before and done it properly. You will be responsible for auditing, reverse-engineering, and rebuilding 157 T-SQL stored procedures (including 18 complex procedural scripts) from Azure Synapse into declarative BigQuery and Dataform pipelines. This is the highest-risk workstream in the engagement. We need someone with the skill and the rigour to get it right.

Context

Legacy data warehouse migrations fail at the transformation layer more often than anywhere else. Procedural T-SQL does not map cleanly to declarative SQL. Bugs get inherited silently. Business logic gets misread. Data drifts and no one can explain why. Your job is to make sure none of that happens here, through thorough auditing, documented logic extraction, and fully validated output before a single model touches production.

What You Will Be Doing

  • Bullet pointAudit all 157 stored procedures categorised by complexity tier (41 control, 18 complex, 32 mid, 66 simple)
  • Bullet pointReverse-engineer and fully document the business logic of each procedure, including edge cases and undocumented behaviour
  • Bullet pointIdentify procedural T-SQL constructs with no direct declarative SQL equivalent and propose validated alternatives
  • Bullet pointBuild all Dataform SQL models with peer review against original Synapse outputs
  • Bullet pointFlag and escalate any legacy code defects to the client internal contact rather than inheriting them silently
  • Bullet pointValidate each converted model against Azure Synapse during the parallel run, producing per-domain reconciliation evidence
  • Bullet pointDeliver a complete conversion log, test evidence pack, and Dataform runbooks as part of the engagement deliverable set

What We Need From You

  • Bullet pointDeep, production T-SQL experience, including stored procedures, CTEs, cursors, dynamic SQL, and window functions
  • Bullet pointHands-on BigQuery SQL and Dataform experience, including incremental models and assertions
  • Bullet pointA structured, methodical approach to logic auditing and conversion documentation
  • Bullet pointProven experience porting procedural SQL logic to declarative models in a migration context
  • Bullet pointAbility to communicate data discrepancies clearly to non-technical stakeholders
  • Bullet pointStrong data validation and reconciliation skills
  • Bullet pointApplicants must have the right to work in the UK and be located in the UK

Beneficial But Not Essential

  • Bullet pointExperience specifically with Azure Synapse Dedicated SQL Pool migrations
  • Bullet pointGoogle Cloud Professional Data Engineer certification
  • Bullet pointFamiliarity with dbt or Dataform assertion frameworks for automated testing
  • Bullet pointPrior work in a fixed-price, time-boxed delivery environment

Why Adroit Cloud Consulting?

Adroit Cloud Consulting is a cloud and AI engineering firm built by practitioners, not theorists. We design, build, and embed secure cloud and AI systems for businesses scaling fast and solving complex problems across financial services, real estate, SaaS, and the public sector.

We work side by side with our clients. No offshore hand-offs, no bloated delivery layers. Just senior engineers who take ownership, move quickly, and leave platforms in better shape than they found them.

Our core capabilities span GCP, AWS, Azure, data platform engineering, AI and ML systems, DevSecOps, and cloud security. We are a Google Cloud Partner with ISO 27001 certification.

We do not manage the gap between strategy and delivery. We close it.

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