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Citi is seeking a highly skilled and experienced Senior Data Engineer to join our dynamic and innovative technology team. The ideal candidate will have a robust background in data engineering, with deep expertise in a variety of modern data technologies and a proven track record of working on large-scale data projects. This role will be pivotal in designing, building, and optimizing our data infrastructure on cloud platforms, and will also provide exposure to cutting-edge Artificial Intelligence projects, including Retrieval-Augmented Generation (RAG) and Agentic AI systems. The candidate must be proficient in Agile methodologies and possess strong leadership and client-facing skills to guide projects to successful completion while balancing stakeholder needs and organizational goals.
Responsibilities:

• Design, build, and maintain scalable ETL/ELT pipelines using PySpark, Spark SQL, and Delta Lake on Databricks, ensuring efficient ingestion, transformation, and integration of large-scale datasets across cloud platforms.
• Cloud Data Platform Management: Implement and manage data solutions on cloud platforms (e.g., AWS, GCP, Azure). Leverage cloud-native services for data storage, processing, and analytics.
• Big Data Technologies: Work extensively with big data frameworks and platforms such as Databricks, Snowflake, and open table formats like Apache Iceberg to process and analyze petabyte-scale datasets.
• Optimize Spark workloads and Databricks clusters by tuning jobs, managing partitioning strategies, caching, and autoscaling to improve performance, reduce processing time, and control infrastructure costs.
• Implement and manage Lakehouse architecture using Delta Lake, enforcing data quality, schema evolution, and governance (e.g., Unity Catalog), while ensuring reliable, secure, and high-quality data for analytics and downstream applications.
• Lead the design and architecture of Starburst-based data solutions, ensuring scalability, performance, and reliability for enterprise-level data platforms.
• Implement and manage data federation strategies using Starburst connectors to seamlessly integrate and query data across disparate systems (e.g., Data Lakes, RDBMS, NoSQL databases, Cloud Storage).
• Performance Optimization: Identify and resolve performance bottlenecks in data pipelines and queries. Optimize data storage and processing for cost and efficiency.
• Develop and optimize robust data pipelines with a strong focus on data governance, ensuring high data quality, comprehensive data lineage, and efficient, compliant data flow from ingestion to consumption for analytical and operational needs.
• Data Modeling and Architecture: Design and implement data models that support business intelligence, analytics, and machine learning use cases. Ensure data architecture is robust, scalable, and secure.
• AI and Machine Learning Collaboration: Partner with data scientists and AI specialists to support the development and deployment of AI models. Contribute to innovative projects involving RAG and Agentic AI by providing the necessary data infrastructure and support.
• Agile Methodology: Operate effectively within an Agile development environment, actively participating in sprint planning, daily stand-ups, and retrospectives to ensure iterative and timely delivery of project milestones.
• Leadership and Project Guidance: Provide technical leadership to steer the project in the right direction, making critical decisions that align with both client interests and the organization's strategic benefits. Mentor junior engineers and promote best practices.
• Stakeholder and Client Interaction: Serve as a key point of contact for stakeholders and clients. Effectively communicate project progress, manage expectations, and translate complex business requirements into actionable technical tasks.

Core Data Technologies:

• Python: Expert-level proficiency with Python and its data ecosystem (e.g., Pandas, NumPy, Dask). Experience should include writing production-grade code for data processing, automation, and API development.
• PySpark: Extensive hands-on experience with the Spark framework, including deep knowledge of the DataFrame API, Spark SQL, and performance tuning techniques for distributed data processing.
• Databricks: Proven experience developing on the Databricks Lakehouse Platform, including proficiency with Delta Lake, structured streaming, and optimizing Spark jobs within the Databricks environment.
• Ab Initio: Strong, practical experience with the Ab Initio suite of products (GDE, Co>Operating System, Conduct>It) for designing and implementing enterprise-grade ETL workflows.
• Snowflake: Hands-on experience designing, building, and maintaining data warehouses in Snowflake. This includes data modeling, implementing security (RBAC), performance tuning, and utilizing features like Snowpipe and Time Travel.
• Starburst/Trino: Experience using federated query engines to provide unified access across disparate data sources. Should understand the principles of query federation and have experience connecting to various data systems.
• Apache Iceberg: Familiarity or experience with open table formats like Apache Iceberg for managing large analytic datasets.
• In-depth knowledge and multi-year experience with at least one major cloud provider (AWS, Google Cloud Platform, or Azure).
• Practical experience building and managing data pipelines using cloud-native services such as AWS Glue, Lambda, S3, Redshift; Azure Data Factory, Synapse Analytics; or Google Cloud Composer, Dataflow, and BigQuery.
• A solid understanding of the data lifecycle required for machine learning projects.
• Experience in building data pipelines to support AI/ML models. Exposure to or a strong interest in preparing data for advanced AI applications, such as building ingestion and transformation pipelines for vector databases used in Retrieval-Augmented Generation (RAG) and Agentic AI systems.
• Agile Proficiency: Deep familiarity with Agile and Scrum methodologies, with a proven ability to deliver projects iteratively and adapt to changing requirements.
• Leadership & Influence: Demonstrated ability to provide technical leadership, influence architectural decisions, and steer projects towards successful outcomes that align with both client needs and long-term organizational strategy.
• Client Engagement: Exceptional communication and interpersonal skills, with proven proficiency in client interaction. Must be able to articulate complex technical concepts to diverse audiences and build strong stakeholder relationships.

Recommended Qualifications:

• 6-10 years of hands-on experience in data engineering, preferably within a large-scale enterprise or financial services environment.
• Demonstrable experience leading project work streams and mentoring junior team members.
• Relevant industry certifications (e.g., AWS Certified Big Data, Google Professional Data Engineer, Snowflake SnowPro).
• Experience with containerization technologies like Docker and orchestration tools like Kubernetes.
• Deep understanding of data governance, data quality, and data security principles.
• Excellent analytical and problem-solving skills with the ability to work independently or as part of a team.
• Experience as Applications Development Manager
• Experience as senior level in an Applications Development role
• Stakeholder and people management experience
• Demonstrated leadership skills
• Proven project management skills
• Basic knowledge of industry practices and standards
• Consistently demonstrates clear and concise written and verbal communication

Education:

• Bachelor's degree/University degree or equivalent experience

Job Family Group:
Technology
Job Family:
Applications Development
Time Type:
Full time
Primary Location:
Irving Texas United States
Primary Location Full Time Salary Range:
$125,760.00 - $188,640.00
In addition to salary, Citi's offerings may also include, for eligible employees, discretionary and formulaic incentive and retention awards. Citi offers competitive employee benefits, including: medical, dental & vision coverage; 401(k); life, accident, and disability insurance; and wellness programs. Citi also offers paid time off packages, including planned time off (vacation), unplanned time off (sick leave), and paid holidays. For additional information regarding Citi employee benefits, please visit citibenefits.com. Available offerings may vary by jurisdiction, job level, and date of hire.
Most Relevant Skills
Please see the requirements listed above.
Other Relevant Skills
For complementary skills, please see above and/or contact the recruiter.
Anticipated Posting Close Date:
Aug 31, 2026
Automated Processing and AI
We use automated processing, including artificial intelligence, for our legitimate business interests (or our reasonable and appropriate business purposes) to identify and align the candidate's skills and abilities with a specific job opening. Additionally, if you so choose, or consent, we can match your skills and abilities to other suitable roles at Citi.
Importantly, all our hiring processes and decisions, including determining your suitability for a role, are conducted, checked, and decided by individuals. Our automated processing and AI do not involve relying on automatic or autonomous decision-making. Please refer to any Jurisdictional Considerations, with specific provisions for your country (where relevant) for further details.
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