Senior Python Application Developer - Vice President

We are seeking a highly experienced and technically proficient Senior Python Application Developer with 10+ years of hands-on experience to design, develop, and deliver critical, scalable, highly available, and performant applications. This role demands deep technical expertise, a strong focus on execution, and a proven ability to deliver robust software solutions, particularly within quantitative and market risk domains.

• Lead hands-on implementation and architecture of Python frameworks for scalable, resilient, and performant applications.

  
  
  

• Develop solutions adhering to architectural standards, utilizing in-depth technical and business domain knowledge.

  
  
  

• Enforce industry-standard SDLC best practices and contribute to code quality through reviews.

  
  
  

• Collaborate with cross-functional teams (Risk, Quants, FO, DevOps, Production Support) for seamless delivery.

  
  
  

• Drive development for Stress Testing and Regulatory Risk projects in the Market Risk domain.

  
  
  

• Manage project technical aspects, including planning, governance, and taking ownership of initiatives.

  
  
  

• Deliver high-quality solutions independently within a globally matrixed environment and under tight deadlines.

  
  
  

• 10+ years of hands-on experience in Application Development, primarily with Python.

  
  
  

• Expert-level Python 3.x proficiency for scalable, resilient, and high-performance applications.

  
  
  

• Advanced knowledge of Python frameworks (FastAPI, Django, Flask), best practices, and design patterns (OOP).

  
  
  

• Strong understanding of software architecture principles and distributed system design (Microservices, Event-Driven Architecture).

  
  
  

• Extensive experience with relational (PostgreSQL, Oracle, SQL Server) and NoSQL databases (MongoDB, Cassandra, Redis), including advanced SQL.

  
  
  

• Proven expertise in designing, developing, and securing RESTful APIs and integration patterns.

  
  
  

• Hands-on experience with CI/CD systems (Jenkins, GitLab CI, GitHub Actions, Bitbucket Pipelines) for automated deployment.

  
  
  

• Highly experienced with Unix-based operating systems.

  
  
  

• Strong background in cloud platforms (AWS, Azure, GCP), including containerization (Docker) and contributing to Kubernetes orchestration.

  
  
  

• Advanced troubleshooting, debugging, and performance optimization for distributed systems.

  
  
  

• Proficiency in automated testing frameworks (Pytest, unittest) and TDD methodologies.

  
  
  

• Solid understanding of secure coding practices and application security principles (OWASP Top 10).

  
  
  

• Expertise in Git (Bitbucket, GitHub) for advanced branching and pull request workflows.

  
  
  

• Experience developing Quantitative/Calc-intensive Python solutions with advanced computation libraries.

  
  
  

• Sound understanding and exposure to various Risk Methodologies.

  
  
  

• Exposure to mathematical modeling/finance insights.

  
  
  

• Foundational Models: Gemini, OpenAI, Claude, Llama, Local Models

• Machine Learning: PyTorch, TensorFlow, Fine-tuning

• Frameworks: LangChain, LlamaIndex, Hugging Face

• Retrieval Augmented Generation: PostgreSQL, Vector DBs, Advanced Retrieval

• Orchestration: LangGraph, Multi-Agent Systems

• Development: Python, FastAPI, Async Programming

• Deployment: Docker, Production APIs, Monitoring

• Applied Methodology: Prompt Engineering, Workflow Design, GenAI Optimization

• Deep understanding and practical experience with Agile/Scrum methodologies.

  
  
  

• Exceptional ability to manage priorities and tasks effectively.

  
  
  

• Strong analytical, logical, systems thinking, and critical analysis skills.

  
  
  

• Excellent written and verbal communication for diverse audiences.

  
  
  

• Ability to work independently, take ownership, and collaborate effectively in global teams.

  
  
  

Education:

• Bachelor’s degree/University degree or equivalent experience

  
  
  

• Master’s degree preferred

  
  
  

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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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.

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