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Data BAU Lead (Snowflake & AWS)

UNISON Group · Singapore

Singapore · On-siteFull-TimePosted Jun 23, 2026

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Job description

We are looking for a seasoned BAU Lead - Data Engineering to lead our data operations and support function in a cloud-first environment. The ideal candidate will bring strong technical leadership, hands-on expertise in AWS and Snowflake, and proven experience in managing Business-As-Usual (BAU) data platforms, production support, and continuous improvement initiatives.

  • Develop tools to improve data flows between internal/external systems and the data lake/warehouse.
  • Work with stakeholders to understand needs for data structure, availability, scalability, and accessibility.
  • Build robust and reproducible data ingest pipelines to collect, clean, harmonize, merge, and consolidate data sources.
  • Understanding existing data applications and infrastructure architecture
  • Build and support new data feeds for various Data Management layers and Data Lakes
  • Evaluate business needs and requirements.
  • Support migration of existing data transformation jobs in Oracle, and MS-SQL to Snowflake.
  • Lead the migration of the existing data transformation jobs in Oracle, Hive, Impala etc. into Spark, Python on Glue etc.
  • Able to document the processes and steps.
  • Develop and maintain datasets.
  • Improve data quality and efficiency.
  • Lead Business requirements and deliver accordingly.
  • Collaborate with Data Scientists, Architect and Team onseveral Data Analytics projects.
  • Collaborate with DevOps Engineer to improve system deployment and monitoring process.
  • Experience in critical production support and how the BAU functions is preferred.

Requirements* At least 8+ years of Data Engineer Experience.

  • At least 5+ years of recent hands-on professional experience (actively coding) working as a Lead handling support & production issue.
  • 2+ experience with large scale datasets, data lake and data warehouse technologies such as AWS Redshift, Google BigQuery, Snowflake. Snowflake is highly preferred.

Lead a team of data engineers in managing day-to-day BAU operations, production support, incident management, and platform stability.

  • Strong AWS knowledge in terms of designing new architecture and providing optimized solutions for existing ones. (S3, Glue, DMS, MWAA, AMS, IAM).
  • In-depth knowledge with respect to Snowflake and its architecture.
  • Prefer prior Experience in BAU environment.
  • Good knowledge on Airflow and MWAA.
  • Hands-on experience in SQL/Python/Pyspark.
  • Expertise in optimizing techniques in cloud environments

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