About this role
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
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Bachelor’s degree/University degree or equivalent experience
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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.------------------------------------------------------
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