Citigroup, Inc

Python Developer - Vice President

Citigroup, Inc$142K — $213K *
Finance & Insurance
5 - 7 years of experience
Job Overview by Ladders

Qualifications

  • 5+ years of experience as a data scientist focused on machine learning (ML) modeling, ranking, and recommendations.
  • 5+ years of experience developing scalable machine learning systems.
  • Strong understanding of ML, deep learning (DL), and large language model (LLM) architectures.
  • Proficiency in Python, SQL, and Spark, as well as TensorFlow for model building.
  • Experience with generative AI projects and distributed computing tools.
  • Familiarity with financial business contexts, particularly in risk management and capital markets.

Responsibilities

  • Architect and implement robust Python-based solutions for data processing.
  • Lead global teams across various time zones, promoting hybrid work dynamics.
  • Drive OOP-based development practices and mentor junior developers in advanced coding techniques.
  • Collaborate with management teams to enhance systems and deploy new products.
  • Resolve complex problems through thorough analysis of business and system processes.
  • Ensure application design is aligned with overall architecture and industry standards.
  • Implement unit testing and test-driven development (TDD) to uphold software quality.

Benefits

  • Comprehensive medical, dental, and vision coverage.
  • 401(k) retirement plan with employer matching.
  • Life, accident, and disability insurance.
  • Access to wellness programs and resources.
  • Generous paid time off including vacation, sick leave, and holidays.
Full Job Description
Job Description
This a development position for establishing and implementing new or revised applications and programs in the Technology team.
As part of this role, you will be responsible for data extraction and data analysis from structured and unstructured sources. You will develop systems to clean results to build predictive and prescriptive models and implement them in a production environment by partnering with technology and business partners. You will have to address complex problems involving financial data with specific focus on credit risk management. You will have to have open and adaptive mindset to learn new and advanced models in LLM and GenAI and bring in innovative solutions to complex business problems.

Responsibilities:
  • Architect, Design, and implement robust Python-based solution
  • Lead global Technology Teams across different time zones, enabling a hybrid work model
  • Drive Object-Oriented Programming (OOPS) principle-based development and mentor team members to leverage advanced python coding techniques and features
  • Partner with multiple management teams to ensure appropriate integration of functions to meet goals as well as identify and define necessary system enhancements to deploy new products and process improvements
  • Resolve variety of high impact problems/projects through in-depth evaluation of complex business processes, system processes, and industry standards
  • Provide expertise in area and advanced knowledge of applications programming and ensure application design adheres to the overall architecture blueprint
  • Utilize advanced knowledge of system flow and develop standards for coding, testing, debugging, and implementation
  • Develop comprehensive knowledge of how areas of business, such as architecture and infrastructure, integrate to accomplish business goals
  • Provide in-depth analysis with interpretive thinking to define issues and develop innovative solutions
  • Serve as advisor or coach to mid-level developers and analysts, allocating work as necessary
  • Experience in using writing and using shell script and other Linux features
  • Implement Unit Testing and TDD to ensure software quality and maintainability
  • Appropriately assess risk when business decisions are made, demonstrating particular consideration for the firm's reputation and safeguarding Citigroup, its clients and assets, by driving compliance with applicable laws, rules and regulations, adhering to Policy, applying sound ethical judgment regarding personal behavior, conduct and business practices, and escalating, managing and reporting control issues with transparency.
  • Proactive.


Qualifications:
  • 5+ years of industry experience as a data scientist, specializing in ML Modeling, Ranking, Recommendations, or Personalization systems.
  • 5+ years of experience designing and developing scalable and reliable machine learning systems for training, inference, monitoring, and iteration.
  • Strong background of ML/DL/LLM algorithms, model architectures, and training techniques.
  • Proficiency in Python, SQL, Spark, PySpark, TensorFlow or other analytical/model-building programming languages.
  • Proficiency with tools and LLMs.
  • Ability to work independently and collaboratively within a team.
  • Preferred Skills:
  • Experience in GenAI/LLMs projects.
  • Familiarity with distributed data/computing tools (e.g., Hadoop, Hive, Spark, MySQL).
  • Background in financial business-like banking, risk management.
  • Should be familiar with capital markets and financial instruments and modeling


Education:
  • Bachelor's degree/University degree or equivalent experience in STEM
  • PhD or master's degree in computer science, Data Science, Statistics, Mathematics, Engineering or related field.


Job Family Group:
Technology

Job Family:
Applications Development

Time Type:
Full time

Primary Location:
Rutherford New Jersey United States

Primary Location Full Time Salary Range:
$142,320.00 - $213,480.00

In addition to salary, Citi's offerings may also include, for eligible employees, discretionary and formulaic incentive and retention awards. Citi offers competitive employee benefits, including: medical, dental & vision coverage; 401(k); life, accident, and disability insurance; and wellness programs. Citi also offers paid time off packages, including planned time off (vacation), unplanned time off (sick leave), and paid holidays. For additional information regarding Citi employee benefits, please visit citibenefits.com. Available offerings may vary by jurisdiction, job level, and date of hire.

Most Relevant Skills
Please see the requirements listed above.

Other Relevant Skills
For complementary skills, please see above and/or contact the recruiter.

Anticipated Posting Close Date:
Jul 03, 2026

About Citigroup, Inc

Citigroup is a financial services holding company that provides financial products and services. The company operates through two segments, Global Consumer Banking (GCB) and Institutional Clients Group (ICG). The GCB segment offers traditional banking services to retail customers through retail banking, commercial banking, Citi-branded cards, and Citi retail services. The ICG segment offers various banking, and financial products and services to corporate, institutional, public sector, and high-net-worth clients. This segment provides wholesale banking products and services, including fixed-income and equity sales and trading, foreign exchange, prime brokerage, derivative services, equity and fixed-income research, corporate lending, investment banking, and advisory services, private banking, cash management, trade finance, and securities services. Citi is committed to sustainability and social responsibility, and the company invests in initiatives that promote economic progress.

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Learn more about Citigroup, Inc
Market Cap
$1.3 billion
Industry
Net Income
$89.6 million
Founded
1812
5 Year Trend
+4.6%
NASDAQ

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