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.