Senior Data Engineer

The Senior Application Developer will be a key contributor to the Nucleus Cloud Migration Program, supporting Citi's strategic initiative to modernize data platforms and enable industry-leading analytics, regulatory reporting, risk management, surveillance, and finance reporting capabilities. The candidate will design, develop, and deploy scalable cloud-based data solutions that facilitate migration from legacy platforms to Databricks and AWS-based technologies. Key Responsibilities • Design, develop, and maintain large-scale data ingestion and processing pipelines using Spark and Kafka. • Build and optimize cloud-native applications and data solutions on AWS. • Support the migration of enterprise data workloads to Databricks and modern cloud platforms. • Develop scalable solutions for data onboarding, transformation, and distribution. • Integrate data platforms with AWS S3 and other cloud services to support business and regulatory reporting requirements. • Collaborate with architecture, engineering, and business teams to implement high-performance and resilient data solutions. • Ensure solutions meet security, governance, and operational requirements. • Support delivery milestones for the Nucleus modernization roadmap, including MVP and subsequent migration phases. • Participate in code reviews, testing, deployment, and production support activities. • Contribute to performance tuning, automation, and operational efficiency initiatives. Required Skills & Experience Technical Skills • Strong Python development experience. • Advanced knowledge of Apache Spark and distributed data processing. • Experience building event-driven solutions using Kafka. • Hands-on experience with AWS cloud services, including S3. • Experience with Databricks and/or Snowflake. • Experience designing and implementing Big Data solutions. • Strong understanding of data engineering principles and modern data architectures. • Experience with source control, CI/CD, and Agile development methodologies. Desired Skills Python • Spark • Kafka • AWS • S3 • Databricks • Snowflake • Big Data • Data Engineering • Cloud Migration • Data Pipelines • Distributed Computing • ETL/ELT • Analytics Platforms • Agile Development Education: • Bachelor’s degree/University degree or equivalent experience This job description provides a high-level review of the types of work performed. Other job-related duties may be assigned as required. ------------------------------------------------------ Job Family Group: Technology ------------------------------------------------------ Job Family: Applications Development ------------------------------------------------------ Time Type: Full time ------------------------------------------------------ Most Relevant Skills Please see the requirements listed above. ------------------------------------------------------ Other Relevant Skills For complementary skills, please see above and/or contact the recruiter. ------------------------------------------------------ Citi is an equal opportunity employer, and qualified candidates will receive consideration without regard to their race, color, religion, sex, sexual orientation, gender identity, national origin, disability, status as a protected veteran, or any other characteristic protected by law. If you are a person with a disability and need a reasonable accommodation to use our search tools and/or apply for a career opportunity review Accessibility at Citi. View Citi’s EEO Policy Statement and the Know Your Rights poster.