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.
