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Tandem Interim · Dubai, United Arab Emirates

Data Engineer

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Stack mentioned

pythongcpexcelpandassqllookerbigqueryazuredatabrickssnowflakedbtapache-airflowapache-kafkadata-engineeringpower-bidata-governancedata-modeling

Location: Dubai

Work Arrangement: Standard workdays (Monday to Friday) & hours (9am to 5pm)

Engagement: Full-time, 3-month initial contract

Seniority: 5+ years, hands-on across data, controls and Power BI

About the Role

This role exists to make a small number of high-effort, business-critical recurring reports trustworthy and repeatable - while establishing minimum viable data ownership and quality controls over the data those reports depend on. The approach is deliberately lean: controlled extracts and repeatable transformation logic, not a new enterprise data platform.

What You'll Deliver

- A prioritized critical-data-element register, business glossary, ownership matrix, and source-of-truth documentation for the agreed scope

- Documented data quality rules (completeness, validity, allowed values, duplicates, thresholds, severity, ownership, remediation)

- A recurring-report inventory, narrowed to 2–3 reports selected on business value, manual effort, and feasibility

- Controlled XLSX/CSV or read-only source extracts with repeatable Power Query/Python transformation logic, record counts, control totals, error logging, archiving and versioning

- 2–3 production-quality Power BI (or GCP/alternative) reports/dashboards with governed KPI definitions, semantic models, DAX, access controls, and scheduled or owner-triggered refresh

- Runbooks, data dictionaries, and test evidence sufficient for a lean internal team to take over maintenance

Key Responsibilities

- Identify which reports, decisions and processes are most exposed to unreliable or manually-assembled data, and profile the underlying extracts

- Resolve conflicting KPI definitions with business owners before build, and document the agreed definitions, owners, exceptions and limitations

- Build resilient transformations that hold up against inconsistent file extracts - changing headers, column order, formats, incomplete data

- Reconcile outputs against source reports and control totals, surfacing unresolved breaks rather than masking uncertainty

- Build and release Power BI (or alternative) semantic models, measures, drill paths and visuals with proportionate refresh and role-based access

- Work with operations, finance, investments, client teams and vendors to establish sustainable extract, review and remediation routines

Must-Have Experience

- Hands-on Power BI to production standard: data modelling, DAX, refresh configuration, row-level security, workspace/access management

- Strong Power Query/M and Excel; working Python/pandas; practical SQL for read-only extraction and validation

- Exposure to GCP data reporting (Looker, BigQuery)

- Track record delivering reliable reporting without depending on a warehouse or modern cloud data stack

- End-to-end setup of a reporting platform/layer (Power BI, GCP, or equivalent)

- Practical data governance/MDM experience - personally built CDE registers, glossaries, ownership matrices, or data-quality rulebooks

- Strong reconciliation, control-total, exception management and remediation-workflow capability

- Confidence facilitating metric-definition decisions and producing documentation non-specialist owners can operate

Preferred / Advantageous

- KSA/GCC delivery experience, and familiarity with regulated data residency and privacy boundaries

- Asset management, wealth management, fund administration, or investment-reporting background (AUM, NAV, performance, holdings, fund structures)

- Exposure to eFront, Bloomberg, Oracle ERP, or comparable portfolio/market-data/finance systems

- Arabic reporting or bilingual/right-to-left layout experience

What This Role Is Not

- Not a cloud data-engineering role, and not a pure dashboard-design role - file-based transformation, governance, reconciliation and handover are all core to it

- Out of scope: building a data lake/warehouse/lakehouse, real-time pipelines, enterprise MDM/catalogue tooling, broad source-system remediation, or unrestricted self-service

- Relevant tools: Power BI, Power Query, GCP BigQuery, Looker. Azure Synapse, Azure Data Factory, Microsoft Fabric, Azure ML, Databricks, Snowflake, dbt, Airflow and Kafka are not screening requirements but may be considered a plus

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