We are looking for an experienced Data Engineer (5 to 9 years) with deep hands-on expertise in Apache Spark, Databricks, Delta Lake, and Unity Catalog
Key Responsibilities
Design, build, and maintain batch and streaming data pipelines on Databricks using Spark (SQL, PySpark, or Scala)
Implement robust data models and ETL/ELT workflows on top of Delta Lake, including schema evolution, time travel, and CDC patterns
Configure and manage Unity Catalog (workspaces, catalogs, schemas, permissions, lineages) to enforce data governance and security across the lakehouse
Optimize pipeline and query performance using Spark internals knowledge, including: Partitioning, Z-Ordering, Liquid Clustering, and file layout tuning Caching strategies, broadcast joins, and efficient shuffle management Cluster sizing/auto-scaling and cost/performance trade-offs
Work with multiple table and file formats (Delta, Iceberg, Parquet, ORC, Avro, JSON, etc.) and choose the right format based on workload and governance needs
Contribute to and maintain CI/CD pipelines for Databricks jobs, notebooks, and workflows ,and/or Databricks Asset Bundles (DABs)
Requirements
Required Qualifications
Strong hands-on experience building data pipelines using Apache Spark with Min 5 years
(PySpark/Scala/SQL) in production
Practical experience with Databricks on at least one major cloud (AWS, Azure, or GCP)
Deep understanding of: Spark internals (execution model, DAGs, stages, tasks, shuffles, Catalyst optimizer)
Performance tuning and troubleshooting (e.g., skew mitigation, spill, shuffle tuning, join strategies)
Solid experience with Delta Lake (ACID transactions, schema enforcement, time travel, OPTIMIZE/VACUUM)
Knowledge of table and file formats including Delta, Iceberg, and Parquet, and when to use which
Hands-on experience with:
Liquid Clustering and Z-Ordering for improving query performance and cost efficiency
Other storage/layout optimization techniques (partitioning, compaction, small-file handling)
Unison Consulting was launched in Singapore on September 2012, the hub of the financial industry, with innovative visions in the technocratic arena. We are a boutique next-generation Technology Company with strong business-interests in Liquidity risk, Market Risk, Credit Risk and Regulatory Compliance.
Unison provides technology consulting and services to implement Risk Management and Risk Analytics System for Financial Institutions. Our services suite comprises of Techno-Functional consulting, systems integration, Business Intelligence, information management, and custom development of IT solutions, plus project management expertise for financial institutions.
We have expertise in latest cutting edge technology to achieve better total cost of ownership. Through our qualified professionals, we assist you drive your unique risk management strategies, whether that means efficient monitoring, improving risk appetite of the financial institutions, complying with regulations, or capturing growth opportunities through innovation, this is what maximizes your decision taking potential. At Unison Consulting, we view clients as partners, and our success is only measured by the success of our partners. So we put it all on the table in order to exceed expectations.
Our staff consists of young, energetic and innovative consultants who are never afraid to challenge the conventions and push the boundaries in an effort to help our clients. For every project, no matter how large or how small, we strive to not only meet your needs, but deliver a showcase in your field.
