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Added 5 mins 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 5 mins ago
B
Senior Manager, Data Engineer, Applied AI Data Ingestion & Integration
BMO
Toronto, ON · FCP
- Full-time
…and operationalize data for AI and analytics workloads. As a Senior Manager within the (DII) Team, you will play a key role in enabling BMO's AI and advanced analytics capabilities by…
Added 18 mins ago
KG
Senior Platform Engineer
Kinross Gold Corporation
Toronto, ON
- Full-time
…environments. We are seeking a highly technical and hands-on Senior Platform Engineer to drive the evolution of our hybrid infrastructure ecosystem spanning on-premises datacenters, cloud…
Added 18 mins ago
M
Business System Analyst
MethodHub
Vancouver, BC
- Contract
Role: Senior Business Systems Analyst (BSA) – Infrastructure & Developer Platform
Added 18 mins ago
AI
Flight Software Engineer
Aversan Inc.
Brampton, ON
- $112,000 to $140,000 CAD / year
- Contract
We are currently seeking a qualified Senior Flight Software Engineer/MTS to join our team. In this role, you will lead designs for safety critical, real-time software solutions while…
Added 18 mins ago
S
Head of Data Systems (Google Stack)
Stacktics
Toronto, ON
- Full-time
Identification and tracking of performance, coaching, training needs, and motivating members of the Data Systems team - including Senior Technical Leads. Directly or indirectly responsible…
Added 20 mins ago
ED
Sr Software Developer (Lead) - EN 178
Export Development Canada | Exportation et développement Canada
Remote, Canada
- Full-time
- Remote
Software Engineer 18: Salaries typically range from $96,557 to $128,743 annually, based on qualifications and experiences, plus a performance-based incentive.
Added 20 mins ago
ED
Sr Software Developer (Lead) - EN 178
Export Development Canada | Exportation et développement Canada
Remote, Canada
- Full-time
- Remote
Software Engineer 18: Salaries typically range from $96,557 to $128,743 annually, based on qualifications and experiences, plus a performance-based incentive.
Added 20 mins ago
ED
Sr Software Developer (Lead) - EN 178
Export Development Canada | Exportation et développement Canada
Remote, Canada
- Full-time
- Remote
Software Engineer 18: Salaries typically range from $96,557 to $128,743 annually, based on qualifications and experiences, plus a performance-based incentive.
Added 20 mins ago
ED
Sr Software Developer (Lead) - EN 178
Export Development Canada | Exportation et développement Canada
Remote, Canada
- Full-time
- Remote
Software Engineer 18: Salaries typically range from $96,557 to $128,743 annually, based on qualifications and experiences, plus a performance-based incentive.
Added 20 mins ago
ED
Sr Software Developer (Lead) - EN 178
Export Development Canada | Exportation et développement Canada
Remote, Canada
- Full-time
- Remote
Software Engineer 18: Salaries typically range from $96,557 to $128,743 annually, based on qualifications and experiences, plus a performance-based incentive.
Added 20 mins ago
CL
Senior Cloud DevOps Engineer
Charger Logistics Inc
Brampton, ON
- Full-time
The Senior Cloud DevOps Engineer will design and implement enterprise-scale cloud infrastructure, drive automation strategies, and mentor engineering teams while architecting…
Added 35 mins ago
RB
Lead Full Stack Developer
Royal Bank of Canada
Toronto, ON
- Full-time
…collaborate, and influence engineering and business team members and senior management across many projects and departmental…
Added 48 mins ago
AF
Financial Planning and Analysis Manager
Armstrong Fluid Technology
Toronto, ON · Scarborough, ON
- $110,000 to $130,000 CAD / year
- Part-time
…brightest and most creative minds, driven by a shared mission to engineer the future and safeguard our…
Added 48 mins ago
CL
Senior Cloud DevOps Engineer
Charger Logistics Inc.
Brampton, ON
- Full-time
The Senior Cloud DevOps Engineer will design and implement enterprise-scale cloud infrastructure, drive automation strategies, and mentor engineering teams while architecting…
Added 50 mins ago
PC
Senior RAM Engineer
Parsons Corporation
Edmonton, AB
- Full-time
We are seeking an experienced Senior RAM Engineer to lead Reliability, Availability, and Maintainability (RAM) activities for major railway and transit projects. The successful candidate…
Added 50 mins ago
PC
Senior Safety & RAM Engineer
Parsons Corporation
Edmonton, AB
- Full-time
Parsons is now hiring a Senior Safety & RAM Engineer working within a team of professionals working on specific projects or helping to develop our expanding portfolio of projects. This role…
Added 1 hour ago
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Independent Contract - Jim
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Toronto, ON
- Contract
…Geotechnical. Reporting to the Vice President, Materials, this senior position will provide technical and practice leadership while supporting complex forensic investigations, client…
Added 1 hour ago
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Civil Engineering Co-op Student
AtkinsRéalis
Toronto, ON
- Full-time
…technology to transform the world's'infrastructure and energy systems. Together, with our industry partners and clients, and our global team of consultants, designers, engineers and project…
Added 1 hour ago
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Civil Engineering Co-op Student
AtkinsRéalis
Toronto, ON
- Full-time
…technology to transform the world's'infrastructure and energy systems. Together, with our industry partners and clients, and our global team of consultants, designers, engineers and project…
Added 1 hour ago
ED
Sr Software Developer (Lead) - EN 178
Export Development Canada | Exportation et développement Canada
Ottawa, ON
- $96,557 to $128,743 CAD / year
- Full-time
Software Engineer 18: Salaries typically range from $96,557 to $128,743 annually, based on qualifications and experiences, plus a performance-based incentive
Added 1 hour ago
TW
Sr. Embedded DevOps & Software Verification Engineer
TPD® Workforce Solutions
Toronto, ON · Greater Toronto Area, Canada
- Full-time
We are looking for a Senior Embedded DevOps and Software Verification Engineer for a fast-moving, innovative aerospace and EVTOL organization. This company takes pride in pushing the…
Added 1 hour ago
SR
Senior Design Engineer
Strategy Recruitment Group
Newmarket, ON
- Full-time
We are partnering with a leading international manufacturer looking to hire a Senior Design Engineer with deep technical expertise in chassis and suspension systems, product development,…
Added 1 hour ago
Electrical Engineer in Training (EIT)
WSP
Thornhill, ON
…something. This is your chance to make an impact as an Electrical Engineer in Training (EIT) with a team that thrives on curiosity, connection, and…
Added 1 hour ago
Software Engineer Intern (Summer 2027 - 8-Months - Sports Technology - Undergraduate)
Electronic Arts
Vancouver, BC
…your technical skills to real-world challenges. Reporting to a Senior Software Engineer, you will work in a Hybrid Work Model (3-days per week in office) out of our studio in…

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.

Apply About employer

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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