Python Full Stack Developer in Mississauga

Discover your future at Citi: Working at Citi is far more than just a job. A career with us means joining a team of more than 230,000 dedicated people from around the globe. At Citi, you’ll have the opportunity to grow your career, give back to your community and make a real impact.

The Applications Development Technology Lead Analyst is a senior level position responsible for establishing and implementing new or revised application systems and programs in coordination with the Technology team. The overall objective of this role is to lead applications systems analysis and programming activities.

Responsibilities:

• 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.
• Appropriately assess risk when business decisions are made, demonstrating particular consideration for the firm's reputation and safeguarding Citigroup, its clients and assets.

Qualifications:

• 6+ years of relevant experience in Apps Development or systems analysis role.
• Extensive experience in system analysis and in programming of software applications.
• Experience in managing and implementing successful projects.
• Subject Matter Expert (SME) in at least one area of Applications Development.
• Ability to adjust priorities quickly as circumstances dictate.
• Demonstrated leadership and project management skills.
• Consistently demonstrates clear and concise written and verbal communication.
• Experience in full stack application development with strong expertise in Python or Java.
• Deep experience with backend frameworks such as Spring Boot / Spring Core and Flask / FastAPI.
• Solid frontend experience with modern JavaScript frameworks (React, Angular, or Vue).
• Experience designing and delivering scalable, cloud native applications.
• Exposure to Gen AI concepts including: Large Language Models (LLMs) and transformer based systems.
• Prompt engineering and basic agent workflows.
• Vector search and retrieval concepts.
• Familiarity with Gen AI frameworks/tools such as LangChain, LangGraph, MLflow, or workflow orchestration tools (e.g., n8n).
• Experience integrating Gen AI APIs (OpenAI, Gemini, Claude, etc.) into production applications.
• Familiarity with at least one major cloud provider (AWS, GCP, or Azure).

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.