Senior Data Engineer & Lakehouse Architect (Hybrid)

Citibank (Switzerland) AG; Irving (TX); Hybrid; Confidential; Full time

Benefits offered by this job

Health insurance

Job summary

Citibank (Switzerland) AG in Irving, Texas is seeking an Applications Development Senior Programmer Analyst (Assistant Vice President) to join our Technology team. You will participate in creating and implementing scalable data systems and pipelines, collaborating with data engineers and scientists.

The role focuses on building ETL/ELT pipelines with PySpark and Spark SQL on Databricks, supporting data platforms on AWS/Azure/GCP, and contributing to Lakehouse architecture, governance, and

Qualifications

• 4–7 years of experience in Data Engineering or related roles.
• Strong hands-on experience with Python, PySpark, and Spark SQL.
• Experience with Databricks (Delta Lake, performance tuning).
• Working knowledge of Ab Initio (GDE, Co>Operating System, Conduct>It).
• Experience with Snowflake for data warehousing and analytics.
• Familiarity with Starburst/Trino and data federation concepts.
• Exposure to AWS, Azure, or GCP and related data services.

Responsibilities

• Develop and maintain scalable ETL/ELT pipelines using PySpark, Spark SQL, and Delta Lake on Databricks.
• Support implementation and management of data platforms across AWS, Azure, or GCP.
• Work with Databricks, Snowflake, and Apache Iceberg to process large datasets.
• Optimize Spark workloads through performance tuning, partitioning strategies, and cost-efficient processing.
• Contribute to Lakehouse architecture implementation, ensuring data quality, consistency, and reliability.
• Assist in implementing data federation solutions using Starburst/Trino across multiple data sources.
• Support data governance initiatives, including data quality checks, lineage tracking, metadata management, and adherence to enterprise standards.
• Collaborate with data scientists and ML teams to enable pipelines for AI/ML and RAG-based use cases.
• Participate in Agile processes, including sprint planning, stand-ups, and retrospectives.

Skills

Python

PySpark

Spark SQL

Agile/Scrum

Data modeling

Data governance

Education

Bachelor’s degree in Computer Science

Master’s degree (plus)

Tools

Databricks

Snowflake

Starburst/Trino

Apache Iceberg

Ab Initio

AWS

Azure

GCP

Job description

Citibank (Switzerland) AG in Irving, Texas is seeking an Applications Development Senior Programmer Analyst (Assistant Vice President) to join our Technology team. You will participate in creating and implementing scalable data systems and pipelines, collaborating with data engineers and scientists.

The role focuses on building ETL/ELT pipelines with PySpark and Spark SQL on Databricks, supporting data platforms on AWS/Azure/GCP, and contributing to Lakehouse architecture, governance, and