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Added 52 mins ago
S
Site Reliability Engineer
SMARTFOX
Canada
- Full-time
Tune performance and cost across infrastructure without sacrificing reliability
Added 52 mins ago
TP
Senior Engineer, Roads and Bridges
Toronto Pearson International Airport
Toronto, ON
- Full-time
As Senior Engineer, Roads and Bridges, you will:
Added 1 hour ago
Concepteur(trice) mécanique senior / Senior Mechanical Designer
Primero Group
Quebec, QC
As a Senior Mechanical Designer, you will be responsible for the development of layouts, mechanical detail drawings, 3D models, 2D drawings and general arrangements in accordance with…
Added 1 hour ago
C++ Software Engineer Intern (UFC - Vancouver - Summer 2027 - 8-months)
Electronic Arts
Vancouver, BC
We're looking for a C++ Software Engineer Intern to join our UFC team for an 8-month internship beginning in May 2027. Reporting to a Senior Software Engineer and paired with an engineering…
Added 1 hour ago
C
Senior Software Engineer
CARFAX
London, ON
- $93,000 to $139,000 CAD / year
- Full-time
Apply best practices for architecture, security, and performance of complex systems primarily in Typescript.
Added 1 hour ago
A
Staff Software Engineer - Open Source Data Platform (ODP)
Acceldata
Kitchener, ON
- Full-time
We are seeking a Staff Engineer with at least 9 years of experience in distributed systems or data platform development. In this role, you will be a technical leader responsible for…
Added 1 hour ago
ED
Sr Software Developer (Lead) - EN 178
Export Development Canada | Exportation et développement Canada
Toronto, 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
ED
Sr Software Developer (Lead) - EN 178
Export Development Canada | Exportation et développement Canada
Calgary, AB
- $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
P
Concepteur(trice) mécanique senior / Senior Mechanical Designer
Primero
Montreal, QC
- Full-time
As a Senior Mechanical Designer, you will be responsible for the development of layouts, mechanical detail drawings, 3D models, 2D drawings and general arrangements in accordance with…
Added 1 hour ago
DC
Ingénieur principal en solutions PLC
Distech Controls
Brossard, QC
- Full-time
…solutions, delivering technologies and services that optimize performance, reliability, resiliency, and operational efficiency. We connect people with intelligent solutions through our…
Added 1 hour ago
ED
Sr Software Developer (Lead) - EN 178
Export Development Canada | Exportation et développement Canada
Montreal, QC
- $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
PG
Senior Software Developer
PEER Group
Kitchener, ON
- $105,000 to $155,000 CAD / year
- Full-time
We are seeking a Senior Software Developer to join our Product Engineering Team and help create the next generation of high-performance, data-intensive applications used in semiconductor…
Added 1 hour ago
EI
Structural Team Lead - Building Engineering
Egis in Canada
Ottawa, ON
- $105,000 to $130,000 CAD / year
- Full-time
Structural Team Lead is a senior structural engineering leadership position based in Ottawa, Ontario, Canada, responsible for managing a team of structural engineers and BIM technologists…
Added 1 hour ago
T
Full Stack Engineer
TEEMA
Toronto, ON
- $70 to $75 CAD / hour
- Contract
We are looking for a Senior Full Stack Developer to join a collaborative Agile technology team building and enhancing cloud-native applications.
Added 1 hour ago
IG
Senior Cloud Engineer
Insight Global
Ottawa, ON · Kanata, ON
- $30 to $60 CAD / hour
- Contract
We are seeking a Cloud Engineering Senior Engineer to support the design, development, testing, and deployment of the Telemetry & Observability Platform (TOP). TOP is an enterprise platform…
Added 1 hour ago
CG
Ingénieur mécanique principal / Senior Mechanical Engineer
Calian Group
Vaudreuil-Dorion, QC
- Full-time
We are currently seeking a candidate for the position of Senior Mechanical Design Engineer. The successful candidate will lead the design, analysis, development, production, maintenance and…
Added 2 hours ago
SL
Senior UI/UX Software Engineer (UE5)
SkyBox Labs
Burnaby, BC
- Full-time
SkyBox Labs is looking for a Senior UI/UX Engineer to join our team on an ambitious AAA co-development project set within a highly anticipated universe.
Added 2 hours ago
SL
UI/UX Software Engineer (UE5)
SkyBox Labs
Burnaby, BC
- Full-time
SkyBox Labs is looking for a Senior UI/UX Engineer to join our team on an ambitious AAA co-development project set within a highly anticipated universe.
Added 2 hours ago
C
Senior QA Automation Engineer – Java & Playwright
Cognizant
Toronto, ON
- $80,000 to $110,000 CAD / year
- Full-time
As a Senior QA Automation Engineer – Java & Playwright, you will make an impact by developing scalable automation solutions and leading end-to-end testing activities for enterprise…
Added 2 hours ago
WI
Senior Civil Engineer - Ressources
WSP in Canada
Kitimat, BC
- Full-time
To support our continued growth, we are hiring an Senior Civil Engineer. In this role, you’ll help deliver impactful industrial civil engineering projects - from conceptual design to…
Added 2 hours ago
WI
Senior Civil Engineer - Ressources
WSP in Canada
Kitimat, BC
- Full-time
To support our continued growth, we are hiring an Senior Civil Engineer. In this role, you’ll help deliver impactful industrial civil engineering projects - from conceptual design to…
Added 2 hours ago
WI
Senior Professional, Structural Engineering
WSP in Canada
SK · Saskatchewan, Canada
- Full-time
As a Senior Structural Engineer in our Resources Engineering group, you will apply your structural design expertise to heavy industrial and mining projects from conceptual design through…
Added 2 hours ago
WI
Senior Civil Engineer - Ressources
WSP in Canada
Terrace, BC
- Full-time
To support our continued growth, we are hiring an Senior Civil Engineer. In this role, you’ll help deliver impactful industrial civil engineering projects - from conceptual design to…
Added 2 hours ago
WI
Lead Instrumentation & Control Engineer, Resources
WSP in Canada
Sudbury, ON · Greater Sudbury, ON
- Full-time
…Sudbury, Ontario OR Saskatoon, Saskatchewan office as a Lead I&C Engineer, you will support as a senior subject matter expert in the instrumentation and controls engineering for both new…
Added 2 hours ago
WI
Senior Instrumentation & Controls Engineer, Resources
WSP in Canada
Sudbury, ON · Greater Sudbury, ON
- Full-time
…our Sudbury, Ontario or Saskatoon Saskatchewan office as a Senior I&C Engineer, you will support as a senior subject matter expert in the instrumentation and controls engineering for both…

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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