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Added 22 hours ago
MC
Sales Intern - On Premise
Molson Coors
Toronto, ON
- Internship
Experience with or willingness to learn Power BI, Tableau, SQL, Python, Databricks, or similar analytical tools.
Added 22 hours ago
R
Staff Data Scientist, AI Evaluations Platform
RBC
Montreal, QC
- Full-time
Strong technical foundation in data science, statistics, machine learning, experimentation, data curation, Python, SQL, and modern AI/ML development practices.
Added 22 hours ago
K
Senior Data Scientist – Python, PySpark & Databricks
Kelly
Toronto, ON · Greater Toronto Area, Canada
- $80 to $90 CAD / hour
- Contract
2.) Expert knowledge of Python, Pyspark, Data Bricks, Azure and SQL are essential
Added 22 hours ago
Manager, Analytics & Process Innovation
MCAP
Toronto, ON
…develop practical technical and analytical solutions using SQL, Python, machine learning, and data integration technologies. The role is accountable for implementing and continuously…
Added 23 hours ago
S
Application Developer
Systematix
Toronto, ON
- Contract
We are Systematix and we are currently seeking an intermediate level Developer with expertise in either Java or Python, or both, for one of our Financial Services clients. This role is…
Added 23 hours ago
B
Java API Developer
BMO
Toronto, ON · BMOPLACE
- Full-time
Evaluates new technologies for fit with the program/system/eco-system and the associated upstream and downstream impacts on process, data, and risk.
Added 23 hours ago
R
Staff Data Scientist, AI Evaluations Platform- EN
RBC
Montreal, QC
- Full-time
Strong technical foundation in data science, statistics, machine learning, experimentation, data curation, Python, SQL, and modern AI/ML development practices.
Added 23 hours ago
IW
Business Systems Analyst & Developer - Data, AI & Agentic Automation
Innotech Windows + Doors
Langley (District), BC · Langley, BC
- Full-time
The Business Systems Analyst & Developer turns business needs into practical data, automation, and AI solutions, and builds them to production standards. The role combines business…
Added 23 hours ago
Senior Manager, Data Initiatives
Scotiabank
Toronto, ON
5 + years of experience with data management tools and various query and processing languages (SQL, Python, ETL)
Added 23 hours ago
O
Conseiller(ère) en ingénierie de données sénior
Onepoint
Montreal, QC · Quebec, QC
- Full-time
Excellente maîtrise des langages T-SQL, M, R, JSON, Python, DAX et dans la gestion de conteneurs avec Docker et Kubernetes;
Added 23 hours ago
W
Conseiller(ère) en ingénierie de données sénior
Wepoint
Montreal, QC · Quebec, QC
- Full-time
Excellente maîtrise des langages T-SQL, M, R, JSON, Python, DAX et dans la gestion de conteneurs avec Docker et Kubernetes;
Added 23 hours ago
M
Software Developer, Robotic Data & Deliveries
Mecka
Richmond Hill, ON
- $150,000 to $200,000 USD / year
- Full-time
We are hiring a Software Developer to build - end to end - the internal products and tooling that turn Mecka’s ego-data pipeline into fast, reliable, at-spec dataset deliveries to frontier…
Added 23 hours ago
W
Ab-initio Data Engineer
W3Global
Mississauga, ON
- $100,000 to $125,000 CAD / year
- Full-time
Proficiency with 1 or more of the following programming languages: Java, API, Python
Added 1 day ago
A
Senior Data Engineer - Temporary
ARC'TERYX
North Vancouver, BC
- Full-time
You have advanced SQL and Python skills, with hands-on experience in large-scale ETL/ELT, data lakes, and NoSQL databases (Cosmos DB)
Added 1 day ago
C
Senior Python Engineer
Citi
Mississauga, ON
- Full-time
We 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…
Added 1 day ago
VC
Staff Software Engineer
Valsoft Corporation
Remote, Canada
- Full-time
- Remote
…systems into modern, cloud-capable solutions. You'll operate with significant autonomy, act as a force multiplier for the rest of the engineering team, work closely with our Head of R&D as…
Added 1 day ago
GS
Business Systems Developer
Grantek Systems Integration
Burlington, ON
- Full-time
…members. We are a team of dedicated Engineers and Designers with an average of 7 years’ tenure at Grantek. The vast majority of our employees have started off their careers at Grantek and…
Added 1 day ago
B
Senior Data Scientist – Generative AI & Machine Learning
Bevertec
Toronto, ON
- Contract
Strong hands-on Python programming skills for machine learning and GenAI applications.
Added 1 day ago
B
Junior Data Scientist
Bevertec
Toronto, ON
- Contract
Strong Python programming skills for data analysis and machine learning.
Added 1 day ago
WT
Data Engineer
Wissen Technology
Montreal, QC
- Full-time
We are looking for a Data Engineer with strong backend engineering fundamentals and hands‑on experience building scalable, high‑performance data pipelines. The ideal candidate comes from a…
Added 1 day ago
VT
AI Platform Developer
Volgo Technologies
Toronto, ON
- Contract
We are looking for an experienced AI Platform Developer with strong hands-on expertise in Google Cloud Platform (GCP), Generative AI, and Agentic AI application development.
Added 1 day ago
L
QA Engineer
Luxoft
Toronto, ON
- Contract
- Design, build and maintain automated test frameworks and scripts with independence improving efficiency and test coverage to enable business capabilities, working in an Agile environment…
Added 1 day ago
Senior Data Engineer
Scotiabank
Toronto, ON
Strong programming skills in Python, SQL, and familiarity with CI/CD pipelines for data platforms
Added 1 day ago
Data Engineer
MCAP
Waterloo, ON · Toronto, ON
Languages: T-SQL, C#, Python, (COBOL is an asset)
Added 1 day ago
SL
Data Engineer
Staffingine LLC
Toronto, ON
- Contract
We are looking for an experienced Data Engineer with strong hands-on expertise in Databricks, Azure database technologies, Oracle, and Python. The ideal candidate should have experience…

Citi

Senior Python Engineer

Mississauga, ON, Canada

$120,800.00 - $170,800.00 · Full-time

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Job details

Pay: $120,800.00 - $170,800.00
Job type: Full-time
Apply by: Oct 13, 2026
Experience: 6+ years of hands-on experience in Application Development, primarily with Python.
Posting language: English
Posted: Oct 9, 2026

Original job description

Job Description

We 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 in Computer Science, Engineering, or Technology
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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Job Family Group:

Technology

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Job Family:

Applications Development

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Time Type:

Full time

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Primary Location Full Time Salary Range:

$120,800.00 - $170,800.00

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Most Relevant Skills

Please see the requirements listed above.

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Other Relevant Skills

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

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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.

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This job opening is for an existing job vacancy.

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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.

If you are a person with a disability and need a reasonable accommodation to use our search tools and/or apply for a career opportunity review Accessibility at Citi.

View Citi’s EEO Policy Statement and the Know Your Rights poster.

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More about this job

Responsibilities

Lead the architecture and implementation of scalable, high-performance Python frameworks for quantitative and market risk applications. Collaborate with cross-functional teams including Quants, Risk, and DevOps to deliver robust software solutions within a global environment.

Requirements

Requires 6+ years of hands-on Python development experience with expertise in system architecture, distributed systems, and cloud platforms. Candidates should possess strong analytical skills and experience in quantitative or risk-intensive domains.

Skills

Python
FastAPI
Django
Flask
PostgreSQL
SQL
AWS
Azure
GCP
Docker
Kubernetes
CI/CD
Pytest
Git
Generative AI
Machine Learning

Visa sponsorship

Not detected in the job text

Keywords

Python
FastAPI
Django
Flask
PostgreSQL
NoSQL
AWS
Azure
GCP
Docker
Kubernetes
CI/CD
Jenkins
Git
Pytest
TDD
Microservices
Event-Driven Architecture
Generative AI
Machine Learning
PyTorch
TensorFlow
Agile
Scrum
Market Risk
Quantitative Analysis
RESTful APIs
System Architecture
Cloud Computing

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