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.
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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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Skills Required
- 5-8 years of relevant experience
- Experience in systems analysis and programming of software applications
- Experience managing and implementing successful projects
- Working knowledge of consulting and project management techniques and methods
- Ability to work under pressure and manage deadlines or unexpected changes in expectations or requirements
- Bachelor's degree or equivalent experience
Citi Compensation & Benefits Highlights
The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about Citi and has not been reviewed or approved by Citi.
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Healthcare Strength — Health coverage is presented as comprehensive, including free in-network preventive care, mental-health resources, and the Be Well Program. Materials also state new hires have access to health and insurance benefits from the outset.
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Retirement Support — The retirement plan offers a $1-for-$1 match up to 6% of eligible pay. New employees are eligible for the plan, with automatic enrollment after 90 days if they do not enroll themselves.
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Inclusive Benefits Coverage — Benefits highlight fertility treatment coverage, adoption/surrogacy reimbursement up to $30,000, and disability coverage. Coverage extends to spouses and domestic partners regardless of gender identity or sexuality, with gender-affirming care-related support noted.
Citi Insights
What We Do
Citi's mission is to serve as a trusted partner to our clients by responsibly providing financial services that enable growth and economic progress. Our core activities are safeguarding assets, lending money, making payments and accessing the capital markets on behalf of our clients. We have 200 years of experience helping our clients meet the world's toughest challenges and embrace its greatest opportunities. We are Citi, the global bank – an institution connecting millions of people across hundreds of countries and cities.
