Senior Data Engineer
JellyLabs Tech
Warsaw, MA, Poland • 40m ago • Remote
Senior
Remote
150 - 160 PLN/yr
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Quick Facts
Role: Senior Data Engineer
Project: Long-term development of a global data platform on Azure
Start: ASAP
Description
You will design, develop, and maintain scalable data solutions in an Azure Data Platform ecosystem, including Azure Synapse, Databricks, and Data Lakehouse components. The work includes implementing and optimizing ETL/ELT pipelines, building data processing solutions using Python, SQL, and Apache Spark, and supporting platform migration/modernization (including Unity Catalog and updates). You will help ensure data quality, reliability, performance, and security while collaborating with architects, analysts, and business stakeholders.
Responsibilities
Design, build, and maintain scalable data solutions on Azure Data Platform (Azure Synapse, Databricks, Data Lakehouse)
Implement and optimize ETL/ELT pipelines for extracting, transforming, and delivering data across business domains
Develop data processing solutions in Python, SQL, and Apache Spark
Support migration and modernization, including Unity Catalog rollout and platform updates
Build and maintain Databricks workflows, Delta Live Tables (DLT), metadata-driven frameworks, and orchestration processes
Collaborate with data architects, analysts, and business stakeholders to translate requirements into technical solutions
Ensure data quality, reliability, performance, and security
Analyze production incidents, identify root causes, and implement corrective actions
Participate in CI/CD, infrastructure automation, monitoring, and operational best practices
Optimize data pipelines, storage structures, and processing workloads for performance and cost
Contribute to solution and architecture reviews, promoting engineering standards and governance practices
Share knowledge, provide mentoring, and support the team’s technical growth
Requirements
Experience building and maintaining ETL/ELT processes
Experience with Delta Live Tables (DLT)
Experience with Unity Catalog
Strong understanding of Lakehouse architecture
Strong analytical and problem-solving skills
Independence with high ownership and accountability
Proactive approach to identifying risks, blockers, and improvement opportunities
Very good communication skills and ability to work with technical and business stakeholders
Data governance, security, and compliance knowledge
Benefits
Long-term project working on a global Azure-based data platform
Opportunity to influence data engineering standards, governance, and platform evolution
Mentoring and knowledge-sharing within the team
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