Sr. Data Engineer (Azure) – Freelance / Remote

We are looking for a Data Engineer to design and build modern data platforms on Azure. This role focuses on transforming raw data into reliable, scalable, and analytics-ready foundations that support reporting, advanced analytics, and AI-driven use cases.

This is a hands-on engineering role, not just conceptual design. The candidate must be comfortable working across ingestion, transformation, modeling, orchestration, and data quality.

Target profile for this role: Senior Data Engineer (5+ years)

Core Responsibilities

1. Data Engineering & Pipelines

• Design and implement ETL / ELT pipelines (batch and optional streaming)

• Build transformations using Python, PySpark, SQL

• Orchestrate workflows using Azure tools

• Integrate data from multiple structured and semi-structured sources

2. Data Architecture

• Design and maintain data lakes / lakehouse architectures

• Implement medallion architecture (bronze, silver, gold)

• Define reusable data models for analytics and AI

3. Analytics Enablement

• Build dimensional and analytical models

• Support Power BI semantic models

• Ensure data usability for reporting and dashboards

4. Azure Platform Implementation

• Configure and manage Azure data services

• Handle storage, compute, orchestration, and security

• Ensure production-ready deployments

5. Data Quality & Testing

• Implement:

  • Data validation rules

  • Pipeline testing (unit + integration)

  • Monitoring and alerting

  • Logging and error handling

Required Skills (Senior Level)

• Strong experience with:
  
  

  • Python (data engineering)

  • PySpark

  • Advanced SQL
    
    

• Hands-on with:
  
  

  • Azure Data Factory

  • ADLS Gen2

  • Databricks / Synapse / Microsoft Fabric

  • Git workflows
    
    

• Experience with:
  
  

  • Delta Lake / lakehouse architectures

  • Medallion architecture

  • Power BI (DAX + semantic modeling)
    
    

Nice to Have

• CI/CD for data pipelines

• Azure Key Vault

• Data governance / cataloging

• Performance optimization in Spark or Power BI

• Experience in distributed teams
  
  

Language Requirements

• English: B1–B2 minimum

• Spanish: Native / Fluent

Working Model

• Remote (full-time dedication expected)

• Freelance / contractor (AOR model possible)

• Long-term collaboration opportunity