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Added 1 hour ago
M
Software Engineer II
Marqeta
Remote, Canada
- Full-time
- Remote
As Marqeta's Software Engineer II, you will deliver resilient and sustainable software projects from design to implementation and rollout. You will execute on defined projects to achieve…
Added 6 hours ago
W
Technical Consultant II, Water Engineer
Worley
Vancouver, BC · Calgary, AB
- Full-time
…solutions across a diverse portfolio of projects. You will apply engineering principles and water modeling expertise to address complex hydrologic, hydraulic, water management, and…
Added 16 hours ago
KG
Building Operator (Toronto)
Kipling Group
Toronto, ON
- Full-time
Computer proficiency, particularly in Word, Outlook, Excel, and PowerPoint as well as general scheduling software.
Added 16 hours ago
CC
Senior Salesforce Engineer
Canadian Cancer Society
Toronto, ON · Ottawa, ON · Montreal, QC · Quebec, QC · Prince George, BC · Vancouver, BC · Kelowna, BC · Halifax, NS · Calgary, AB
- Full-time
Oversee architecture and engineering decisions to ensure AI solutions are scalable, secure, maintainable, and aligned to enterprise standards, responsible AI, and least-privilege access.
Added 19 hours ago
KI
Cloud Engineer 2, Site Reliability Engineering
Kinaxis Inc.
Ottawa, ON
- Full-time
The Site Reliability Engineering team owns the delivery, operation, and monitoring of Kinaxis products and cloud infrastructure in production. We are focused on keeping services reliable,…
Added 1 day ago
ES
Senior Business Analyst
EPAM Systems
Toronto, ON
- Full-time
As an EPAM Systems, Inc. (NYSE: EPAM) company, a leading global provider of digital platform engineering and development services, we deliver advanced financial services solutions by…
Added 1 day ago
B
PMO Project Manager II/Chef de projet PMO II
Bluberi
Montreal, QC
- Full-time
Facilitate alignment across Product Management, Game Studios, Engineering, QA, Compliance, Manufacturing, Commercial, Operations, Creative Services, and other teams as required.
Added 1 day ago
B
Software Tester II
Bluberi
Moncton, NB
- Full-time
…professionals from diverse fields such as mathematics, visual arts, software engineering, game design, audio engineering, and quality assurance. With its head office in Las Vegas, the R&D…
Added 1 day ago
MG
Estimator
MYR Group
Surrey, BC
- Full-time
Bachelor's degree in Engineering, Construction Management or related field; combination of relevant education and experience considered in lieu of degree
Added 1 day ago
AG
Technical Lead, Aerospace Development
ADGA Group Consultants Inc
Ottawa, ON
- $140,000 to $160,000 CAD / year
- Full-time
Proof of Engineering bachelor’s degree in aerospace, software, computer, systems, electrical or a suitable engineering or technical field required to support the Unmanned Aerial Systems.
Added 2 days ago
TW
Repair Solutions Engineer II
T.D. Williamson
Edmonton, AB · Canada Edmonton
- Full-time
Experience with PLM system, software (e.g. TeamCenter, MasterControl), and engineering change processes
Added 2 days ago
Senior Backend Engineer II - Patient Experience
Prenuvo
Vancouver, BC
…contrast). Our unique integrated stack of optimized hardware, software, and increasingly AI, coupled with the patient-centric experience across our domestic and global clinics, have allowed…
Added 2 days ago
S
Dotnet Developer
SMARTFOX
Canada
- Full-time
Degree or diploma in Computer Science, Software Engineering, or a related field, or equivalent experience. Bootcamp graduates and self-taught developers are welcome. We hire for skill, not…
Added 2 days ago
S
Site Reliability Engineer
SMARTFOX
Canada
- Full-time
Define and track SLIs, SLOs, and error budgets with product and engineering teams, and use them to guide release and reliability decisions
Added 2 days ago
RL
Optical Engineer II
Rocket Lab
Toronto, ON
- Full-time
…that allow them to thrive in space, like solar panels, flight software, star trackers, optical systems, separation systems, radios, and…
Added 2 days ago
SC
Team Manager - Application Development
Staples Canada
Richmond Hill, ON
- Full-time
Build and strengthen the team's integration engineering capabilities, including API development, middleware technologies, system integration patterns, event-driven architectures, and…
Added 2 days ago
S
SQL Developer
SMARTFOX
Canada
- Full-time
…conversations. Many of our senior developers have moved into data engineering, data architecture, analytics engineering, and database…
Added 2 days ago
S
Artificial Intelligence Consultant
SMARTFOX
Canada
- Full-time
Degree or diploma in Computer Science, Data Science, Engineering, Statistics, Mathematics, Business Analytics, or a related field, or equivalent experience. A strong portfolio counts as…
Added 2 days ago
ZT
Développeur de logiciels, professionnel II/ Software Engineer, Professional II
Zebra Technologies
Montreal, QC · CAN - Montreal, Canada
- Full-time
We are seeking a talented Software Developer in Montreal, QC to be part of the development of our cutting-edge visual programming tool for machine vision inspections.
Added 2 days ago
ES
Experience Designer II - A-Team
EA SPORTS
Vancouver, BC
- Full-time
6+ years of experience in a UX role designing internal software tools and workflows.
Added 2 days ago
T
Data Scientist II
TD
Toronto, ON
- Full-time
Collaborate with Data Solutions, Data Engineering, and Technology partners to define detailed data curation requirements, business rules, data quality expectations, and enhancement…
Added 2 days ago
S
Software Developer
SMARTFOX
Canada
- Full-time
Degree or diploma in Computer Science, Software Engineering, or a related field, or equivalent experience. Bootcamp graduates and self-taught developers are welcome. We hire for skill, not…
Added 2 days ago
NF
Project Controls Advisor II
NES Fircroft
Calgary, AB
- Contract
Bachelor's degree in Engineering, Engineering Technology, Construction Management, or a related discipline.
Added 2 days ago
Associate Technical Services Engineer II
MongoDB
Toronto, ON
…behalf. And you'll contribute to internal projects, including software development of support tools for performance, benchmarking, and…
Added 2 days ago
T
Mainframe Software Engineer II
TD
Toronto, ON
- Full-time
TD’s Core Platform Party1 Product Group is seeking a talented Software Engineer II to support mission-critical applications including CIF (CustomerLink) , PRTCL (Party API ) and others.…

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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