Georgetown, On Sr. python developer Jobs – 77 Openings This Week

Apps Dev Tech Lead Analyst
Citi —Mississauga, ON
- $120,800–$170,800 a year
- Full-time
- Hybrid work
- Azure
- Master's degree
- SQL
Senior Security Researcher
Geotab —Oakville, ON
- $129,800–$179,800 a year
- Full-time
- Hybrid work
- Computer Science
- Engineering
- Linux
- Dental care
Senior Data Engineer
LTM —Mississauga, ON
- $75,163–$79,609 a year
- Python
- Disability insurance
- Dental care
Quick apply
Senior Manager, Data Science
SOTI Inc. —Mississauga, ON
- Full-time
- Azure
- Computer Science
- SQL
GenAI Senior Platform Engineer - Python, VP
Citi —Mississauga, ON
- $120,800–$170,800 a year
- Full-time
- Hybrid work
- Master's degree
- Analysis skills
- Project management
Senior SQL Server & Data/AI Engineer
MHI Canada Aerospace, Inc. —Mississauga, ON
- Overtime
- Azure
- Computer Science
- Engineering
Senior AI Engineer, Banking Technology – Vice President
Citi —Mississauga, ON
- $120,800–$170,800 a year
- Full-time
- Hybrid work
- Computer Science
- Java
- Master's degree
AI Security Engineer, Senior
Zebra Technologies —Mississauga, ON
- $90,960–$136,440 a year
- Full-time
- Azure
- AWS
- Bachelor's
- Paid time off
- Employee assistance program
Senior Application Security Analyst
Purolator Inc —Mississauga, ON
- Azure
- Computer Science
- DevOps
Quick apply

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Apps Dev Tech Lead Analyst

Citi -
Mississauga, ON

Apply Now

Job details

Full-time
$120,800–$170,800 a year

Qualifications

TensorFlow
Azure
PyTorch
Google Cloud Platform
Master's degree
SQL
AWS
Project management
Docker
Bachelor's
PostgreSQL
APIs
Metadata
AI
Leadership
Communication skills
Python
Debugging

Full job description

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.

Job Overview

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, 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.

Recommended Qualifications:

6-10 years of relevant experience in Apps Development or systems analysis role
Extensive experience 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

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.

Deep expertise in Large Language Models (LLMs) including OpenAI, Gemini, Claude, Llama, and local/open‑source models
Strong hands‑on experience with Python, FastAPI, async programming, SQL and high‑performance AI APIs
Extensive experience with Gen‑AI frameworks such as LangChain, LangGraph, LlamaIndex, and Hugging Face
Proven experience designing and implementing:
- Retrieval‑Augmented Generation (RAG) systems
- Vector databases (PostgreSQL + pgvector, Pinecone, Weaviate, FAISS, etc.)
- Advanced retrieval strategies (hybrid search, re‑ranking, metadata filtering)
Experience with multi‑agent systems, workflow orchestration, and stateful AI applications
Solid grounding in ML/DL concepts, with hands‑on experience using PyTorch and/or TensorFlow, including fine‑tuning and embeddings
Strong understanding of prompt engineering, workflow design, and Gen‑AI optimization (latency, cost, accuracy)
Experience deploying Gen‑AI systems using Docker, production APIs, and monitoring/observability tools
Understanding of AI system evaluation, safety, and governance (hallucination handling, guardrails, feedback loops)
Tech leadership responsibilities including architecture ownership, design reviews, and mentoring AI engineers
Familiarity with at least one major cloud provider (AWS, GCP, or Azure)

Job Family Group:

Technology

Job Family:

Applications Development

Time Type:

Full time

Primary Location Full Time Salary Range:

$120,800.00 - $170,800.00

Most Relevant Skills

Please see the requirements listed above.

Other Relevant Skills

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

Automated Processing and AI

We use automated processing, including artificial intelligence, for our legitimate business interests (or our reasonable and appropriate business purposes) to identify and align the candidate's skills and abilities with a specific job opening. Additionally, if you so choose, or consent, we can match your skills and abilities to other suitable roles at Citi.

Importantly, all our hiring processes and decisions, including determining your suitability for a role, are conducted, checked, and decided by individuals. Our automated processing and AI do not involve relying on automatic or autonomous decision-making. Please refer to any Jurisdictional Considerations, with specific provisions for your country (where relevant) for further details.

This job opening is for an existing job vacancy.

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.

Apply Now

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sr. python developer jobs in georgetown, on

Apps Dev Tech Lead Analyst

Senior Security Researcher

Senior Data Engineer

Senior Manager, Data Science

GenAI Senior Platform Engineer - Python, VP

Senior SQL Server & Data/AI Engineer

Senior AI Engineer, Banking Technology – Vice President

AI Security Engineer, Senior

Senior Application Security Analyst