Senior Python Engineer

Citibank (Switzerland) AG; Tampa, Northern (FL, KY); Hybrid; USD 114,000 - 171,000; Full time

Job summary

Citi is seeking a Senior Python Engineer in Tampa, FL. You will design, develop, and deliver scalable Python-based applications with a focus on quantitative risk domains.

You will lead architecture, implement RESTful services, and collaborate across Risk, Quants, FO, and DevOps teams to meet aggressive deadlines while maintaining quality and security.

Qualifications

• 6+ years in Python application development with production-grade systems.
• Experience building scalable services and RESTful APIs.
• Experience in cloud environments and container orchestration.

Responsibilities

• Lead hands-on implementation and architecture of Python frameworks for scalable, resilient apps.
• Develop solutions following architectural standards and best practices.
• Collaborate with Risk, Quants, FO, DevOps, Production Support for delivery.

Skills

Python 3.x

FastAPI

Django

Flask

REST APIs

CI/CD

PostgreSQL

Docker

Kubernetes

AWS

Education

Bachelor's degree

Master's degree preferred

Tools

Git

GitHub Actions

Jenkins

MongoDB

Redis

Job description

## Senior Python EngineerApply: Hybrid: Tampa Florida United States: Jacksonville Florida United States: Irving Texas United States: Full time: Posted Today: 26994665We are seeking a highly experienced and technically proficient **Senior Python Developer** with 6+ **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.# Key Technical Responsibilities:* 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.# Required Technical Qualifications:## I. Core Python & System Development:* **6+ 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.## II. Cloud & DevOps:* 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.## III. Quantitative & Risk Domain:* 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.## IV. Artificial Intelligence (AI) Integration (Exposure):* Exposure to AI/ML tools and frameworks (TensorFlow, PyTorch, scikit-learn).* Practical experience with AI tools (Copilot, Devin, Claude/Gemini/GPT) for development workflows.* Experience with Agentic AI tools, including writing Agents and Skills, and contributing to Agentic frameworks.* Understanding and practical application of Generative AI concepts in software development.# Professional Skills:* 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.# Desirable Qualifications:* Polyglot Programming Exposure (e.g., Java).* Big Data Technologies (Apache Spark, Hadoop, Kafka) and data warehousing.* Frontend Development (React, Angular, Vue.js).* Relevant Cloud or Industry Certifications.* Experience with banking domain (pricing, risk), CFA/FRM certification. **Key Focus Areas / Desirable Skills**• **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***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. ------------------------------------------------------## **Job Family Group:**Technology------------------------------------------------------## **Job Family:**Applications Development------------------------------------------------------## **Time Type:**Full time------------------------------------------------------## **Primary Location:**Tampa Florida United States------------------------------------------------------## **Primary Location Full Time Salary Range:**$113,840.00 - $170,760.00In 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.