Senior Data Engineer (Databricks Migration)
Sigma Software1 month ago
Remote, UkraineSenior
Responsibilities
- Migrate a large-scale analytical platform and ETL/ELT workloads from BigQuery to Databricks.
- Design and implement scalable Databricks Lakehouse and medallion architectures using Delta Lake.
- Develop, maintain, and optimize large-volume Spark and PySpark data pipelines and transformation frameworks.
- Implement incremental processing strategies and reusable data platform components.
- Apply data governance and security best practices using Unity Catalog.
- Monitor clusters, analyze metrics, troubleshoot complex SQL and Spark workloads, and optimize performance.
- Support production deployments, platform modernization, code reviews, and reliability improvements.
- Collaborate with Data Science, Analytics, Product, and Customer Engineering teams on architecture and technical solutions.
Requirements
- 5+ years of professional experience as a Data Engineer.
- Strong programming skills in Python and advanced SQL.
- Hands-on commercial experience with Databricks, Apache Spark, PySpark, and Delta Lake.
- Experience designing modern cloud-based data platforms and large-scale ETL/ELT processing solutions.
- Experience with Spark Declarative Pipelines, cluster monitoring, metrics analysis, and performance optimization.
- Strong understanding of distributed data processing, data warehousing, and dimensional modeling.
- Experience with Airflow or similar orchestration tools and complex analytical SQL optimization.
- Experience implementing CI/CD practices for data engineering platforms.
- Strong troubleshooting, collaboration, communication, and stakeholder-management skills.
- Upper-Intermediate or higher English proficiency.
- Preferred: experience with GCP, AWS, or Azure; retail analytics or pricing optimization; machine learning or AI-related data workloads; and platform modernization or cloud migration initiatives.
Tech Stack
Categories
Data Engineering
About Sigma Software
Sigma Software is a London-headquartered, privately held IT consultancy that designs and builds custom software for startups and enterprises. The company provides end-to-end services—engineering, web and mobile development, .NET/Java platforms, AR/VR, and UI/UX—delivered via outsourcing, managed teams, and consulting. Founded in 2002, it supports long-term product development and modernization projects across multiple industries for global clients.