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Added 1 day ago
T
Full Stack Engineer
TEEMA
Toronto, ON
- $70 to $75 CAD / hour
- Contract
Ideal candidate: A hands-on senior developer who is equally comfortable contributing to backend Java/Spring development, React front-end development and AWS cloud environments, rather than…
Added 1 day ago
IG
Senior Cloud Engineer
Insight Global
Ottawa, ON · Kanata, ON
- $30 to $60 CAD / hour
- Contract
Added 1 day ago
ZC
Full Stack Developer (Java/JavaScript)
Ztek Consulting
Montreal, QC
- $110,000 to $120,000 USD / year
- Full-time
We are seeking an experienced Full Stack Developer (Java/JavaScript) to join the Risk and Information Management team supporting Non-Financial Risk Management applications. The ideal…
Added 1 day ago
TN
Software Development Lead
The North West Company
Winnipeg, MB
- Full-time
Experience with modern web front-end frameworks, preferably React, and knowledge of integration platforms such as MuleSoft or similar API/integration middleware is considered an asset.
Added 1 day ago
O
Lead Software Developer (OCP Platform)
OpenText
Richmond Hill, ON
- Full-time
As a Lead software developer in this team you will be contributing to:
Added 1 day ago
S
Software Developer
SMARTFOX
Canada
- Full-time
Write clean, maintainable code in languages such as JavaScript/TypeScript, Python, Java, C#, Go, or Kotlin, using the stack that best fits the problem
Added 1 day ago
SL
Senior Software Engineer, Operations
Sun Life
Toronto, ON · Waterloo, ON · Sun Life Waterloo King
- Full-time
We are looking for a highly motivated Senior Software Engineer with at least 10 years of Java application support, analysis, and development experience. The successful candidate will have…
Added 1 day ago
ZS
Digital Developer (AEM Experience)
Zodiac Solutions, Inc
Toronto, ON
- Full-time
We are currently looking for a Digital Developer to work within our Digital Development team. The successful candidate will be a key member who will work with UX, UI, Business stakeholders…
Added 1 day ago
RB
Lead Full Stack Developer
Royal Bank of Canada
Toronto, ON
- Full-time
A Lead Full Stack Developer is responsible for designing, developing and maintaining legacy and "Cloud First" applications written primarily in C# and focused on .Net Core and cloud…
Added 1 day 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 1 day ago
RC
Senior software developer
Raenan Consultancy
Toronto, ON
- $80 to $85 CAD / hour
- Full-time
- Hybrid
Added 1 day ago
SC
Senior Software Developer
SRC Can
Remote, Canada
- $10,000 to $135,000 CAD / year
- Full-time
- Remote
SRC CAN Ltd is seeking a Senior Software Developer to contribute to the design, development, and delivery of next-generation EW Operational Support Systems (EWOSS) including Intelligence…
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
A
Java/AI Software Engineer
Aptonet
Vancouver, BC
- Full-time
3+ years of experience developing applications with Java and Spring framework
Added 1 day ago
P
Software Engineer
ProxyLink
Toronto, ON
- $80 to $90 CAD / hour
- Contract
ProxyLink is hiring an experienced Software Developer to design, develop, test, deploy, and troubleshoot enterprise-level applications using Java Enterprise technologies. The successful…
Added 1 day ago
M
RQ11718 - Software Developer - Intermediate
Maarut
Toronto, ON
- Contract
The Developer will be responsible for translating business requirements and technical system specifications into working, tested applications. This would involve doing analysis & design…
Added 1 day ago
TI
Software Developer
Teckhorizon Inc
Toronto, ON
- $80 CAD / hour
- Contract
The Intermediate Software Developer will translate business requirements and technical system specifications into working, tested applications. Responsibilities include requirements…
Added 1 day ago
SI
Software Developer
Spait Infotech
Canada
- Full-time
Programming Languages: Java, Python, C#, JavaScript, or C++.
Added 1 day ago
M
Lead Full Stack Software Engineer
Manulife
Toronto, ON · Waterloo, ON
- Full-time
Lead the design, development, and delivery of full-stack applications using Java (Spring Boot) and React.
Added 1 day ago
M
Back-End Software Engineer
Manulife
Toronto, ON
- Full-time
Familiarity with Java and Java Spring Boot is an asset
Added 1 day ago
PG
Full-Stack Java Developer with UI
Pacer Group
Mississauga, ON
- $110,000 to $120,000 CAD / year
- Full-time
Proven full-stack development expertise with hands-on experience in Java, Angular OR React, and REST APIs.
Added 2 days ago
HS
Senior Software Engineer, Dentrix Ascend
Henry Schein One UK
Surrey, BC
- Full-time
Strong experience with Java and modern object-oriented software development
Added 2 days ago
VC
Software developer
Vaisesika Consulting Inc.
Toronto, ON
- From $62.5 CAD / hour
- Full-time
- On-site
Added 2 days ago
PS
Web Developer (React)
PressCentric SEZC
Vancouver, BC
- Full-time
We are looking for a senior web frontend developer with experience in React to join our team.
Added 2 days ago
I
Software Engineer
Insight
Remote, Canada
- Full-time
- Remote
Design and implement full-stack features and fixes across Java and Spring Boot services and React or Angular frontends on Google Cloud, on the engagements they are assigned to

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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