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Added 1 month ago
Research Associate - Herzberg Instrument Science Fellowship
National Research Council Canada
Victoria, BC
…interests within an inclusive environment for active research, learning and service. They will have a goal of becoming a Principal Investigator for the next generation of astronomical…
Added 1 month ago
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Principal Application DevOps Engineer, AI & Automation
Entrust
Canada
- Full-time
…databases, integrations, and on-premises cloud infrastructure. The Principal Application DevOps Engineer, AI & Automation will bring an application-first engineering perspective to Cloud…
Added 1 month ago
Principal Software Developer
Open Text Corporation
Waterloo, ON
We are seeking an experienced Principal Software Developer responsible for the design and implementation of services for ingestion, classification and extraction of content from business…
Added 1 month ago
KI
Architect, Machine Learning (Principal Scientist)
Kinaxis Inc.
Canada
- Full-time
The AI team is responsible for advancing machine learning solutions in the supply and demand space across industries such as Retail, Consumer Packaged Goods, and Life Sciences. Our work…
Added 1 month ago
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Principal Product Manager - Workday AI - Agent Factory
Workday
Vancouver, BC · Canada, BC, Vancouver
- Full-time
We are looking for Principal Product Managers who have shipped production AI agent systems and want to do it again at enterprise scale. You will own an agent from concept through GA:…
Added 1 month ago
Creative Director - 6-Month Contract, with Potential for Extension (Remote)
Geotab
Oakville, ON
…billions of data points a day, Geotab leverages data analytics and machine learning to improve productivity, optimize fleets through the reduction of fuel consumption, enhance driver safety…
Added 1 month ago
UO
Intermediate Data Management Specialist, Oncology
University of Calgary
Calgary, AB
- Full-time
Develop and apply machine learning (ML) approaches for health outcome prediction and risk assessment
Added 1 month ago
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Développeur Logiciel Principal.e, Plan de Contrôle - Laboratoire d'IA Souveraine
Mila - Institut québécois d'intelligence artificielle
Montreal, QC
- Full-time
…specializing in artificial intelligence, and more specifically in machine learning, deep learning and reinforcement learning. Recognized worldwide for its important contributions to the…
Added 1 month ago
Senior Software Engineer, Full-Stack Applications - Python
Fitch Group
Toronto, ON
Continuous learning – Training, certifications, conferences, and clear paths to senior/principal/architect tracks
Added 1 month ago
Staff Scientist (AI for Self-Driving Labs)
University of Toronto
Toronto, ON
Applied machine learning on real-world experimental or industrial data, including multivariate time-series and noisy, sparse, or incomplete datasets.
Added 1 month ago
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Principal Product Manager - Identity Threat Detection and Response
Elastic
Canada
- Full-time
We’re looking for a Principal Product Manager to guide the vision, strategy, and execution for Identity Threat Detection and Response (ITDR) within Elastic Security. Attackers not only…
Added 1 month ago
GM
Principal Software Engineering - Build System Modernization
General Motors
Markham, ON
- Full-time
…connecting initiatives to deliver greater value through innovation, learning, and…
Added 1 month ago
GM
Principal Software Engineering - Test System Modernization
General Motors
Markham, ON
- Full-time
Master’s degree or PhD in Computer Science, Software Engineering, Machine Learning, AI, or a related field.
Added 1 month ago
Application Security Engineer (senior - principal) Landmark
Halliburton
Calgary, AB
Awareness of emerging security considerations associated with AI-enabled applications, machine learning services, or AI-assisted software development.
Added 1 month ago
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Architect, Machine Learning (Principal Scientist)
Kinaxis
Ottawa, ON
- Full-time
The AI team is responsible for advancing machine learning solutions in the supply and demand space across industries such as Retail, Consumer Packaged Goods, and Life Sciences. Our work…
Added 1 month ago
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Principal Product Manager, Content Transformation
Thomson Reuters
Toronto, ON
- Full-time
Apply technologies including Generative AI, agentic workflows, machine learning, workflow automation, and orchestration platforms to solve complex content challenges.
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Chercheur(euse) principal(e) - Apprentissage automatique / Senior Researcher - Machine Learning
Microsoft
Montreal, QC
- $114,400 to $203,900 CAD / year
- Full-time
Nous sommes à la recherche d’un(e) chercheur(euse) principal(e) pour se joindre à notre équipe et contribuer à l’avancement de projets clés portant sur le développement d’agents de…
Added 1 month ago
SC
Principal Software Developer
Solace Corporation
Ottawa, ON
- Full-time
This position is for a Principal Software Developer - AI Integration. In this role you will be a key technical leader working on the Solace Agent Mesh: an event-driven Integration and…
Added 1 month ago
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Principal Data Scientist, Product Data & Analytics
Intuit
Toronto, ON
- Full-time
Intuit has embraced a hybrid working model and this role will be based out of our Toronto office 3 days per week
Added 1 month ago
Data Analyst, Principal
Dayforce
Canada
…review. Understand when deterministic analytics, traditional machine learning, or an LLM-based approach is most…
Added 1 month ago
TR
Staff Software Engineer – AI
Thomson Reuters
Toronto, ON
- Full-time
Candidates must have hands-on production AI delivery experience
Added 1 month ago
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Project Estimation Manager [Hybrid or Remote] - Gestionnaire Estimation des Projets [Hybride ou Télétravail] | - FR
EDF power solutions North America
Montreal, QC
- Full-time
Rewarding learning & career development and advancement opportunities.
Added 1 month ago
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Lead Architect / Principal Engineer
Litmus
Toronto, ON
- Full-time
…infrastructure that enables real-time data to power AI and machine learning systems in production…
Added 1 month ago
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Principal Machine Learning Engineer, SecureAI
Okta
Toronto, ON
- $192,000 to $264,000 CAD / year
- Full-time
In this role, you will join the Agent Access Policies sub-team under Okta Secures AI as a Principal Machine Learning (ML) Engineer to advance Okta's authorization capabilities. By replacing…
Added 1 month ago
Principal SI/PI Engineer - 18619
Synopsys
Mississauga, ON
…the Era of Pervasive Intelligence, from self-driving cars, machine learning to artificial intelligence. We lead in chip design, verification, and IP integration, empowering the creation of…

Fitch Group

Senior Software Engineer, Full-Stack Applications - Python

Toronto, ON, Canada

FOR TORONTO ROLES ONLY: Expected base pay rates for the role will be between 130,000 CAD and 160,000 CAD.

Apply on careers.fitch.group About employer

Applications open in a new tab.

Job details

Pay: FOR TORONTO ROLES ONLY: Expected base pay rates for the role will be between 130,000 CAD and 160,000 CAD.
Experience: Full-Stack Engineering Experience – 7+ years of hands-on experience building enterprise applications and modern web technologies in production environments
Posting language: English
Posted: Aug 17, 2026

Original job description

Senior Software Engineer, Full-Stack Applications – Python

Fitch Ratings is seeking a Senior Software Engineer to join our global Ratings Technology team in Toronto. You'll build and maintain mission-critical full-stack applications that power how a world-leading credit ratings agency delivers insights to analysts, executives, and decision-makers who shape global financial markets.

You'll work on Ratings workflow and analytical applications using modern technologies across the full stack - from backend services in Java and Python to frontend applications in React. This role offers the opportunity to work with cutting-edge cloud technologies, contribute to technical solutions, and grow your skills in a collaborative environment.

What We Offer:

• Impactful work – Build applications used by analysts worldwide with direct visibility to your contributions

• Modern technology stack – Work with Java, Python, React, AWS, Kubernetes, and emerging AI technologies

• Continuous learning – Training, certifications, conferences, and clear paths to senior/principal/architect tracks

• Flexible environment – Work from our Manchester office with hybrid flexibility, competitive compensation, comprehensive benefits, and work-life balance

• Innovation culture – Experiment with new technologies, contribute ideas, and help shape technical decisions

We'll Count on You To:

• Develop and maintain full-stack applications – Build robust, scalable applications using Python (FastAPI/Flask), and ReactJS following best practices and design patterns

• Contribute to the development lifecycle – Write clean, maintainable code, implement CI/CD pipelines with GitHub Actions, deploy to Kubernetes, and ensure quality through testing and code reviews

• Work with diverse data technologies – Develop solutions using RDBMS (PostgreSQL, Oracle) and NoSQL (MongoDB) databases, optimize queries, and ensure data integrity

• Collaborate across teams – Partner with product managers, analysts, and other engineers to understand requirements and deliver solutions that meet business needs

• Apply engineering best practices – Follow SOLID principles and design patterns, participate in code reviews, solve technical challenges, and contribute to code quality

• Support and improve systems – Troubleshoot production issues, optimize performance, and help ensure reliability of applications at scale

• Stay current with technology – Learn and experiment with emerging technologies, share knowledge with the team, and contribute to continuous improvement

What You Need to Have:

• Full-Stack Engineering Experience – 7+ years of hands-on experience building enterprise applications and modern web technologies in production environments

• Software Engineering Fundamentals – Strong understanding of OOP concepts, design patterns, SOLID principles, algorithms, data structures, and ability to write clean, maintainable code

• Backend Development – Proficiency in Python (Pandas, FastAPI, Flask) for building enterprise applications, data processing, and API development

• Frontend Development – Experience with ReactJS, Node.js, TypeScript/JavaScript, and modern web development practices

• Database Technologies – Hands-on experience with RDBMS databases (e.g., Oracle, PostgreSQL) and NoSQL databases (e.g., MongoDB)

• DevOps & Cloud – Experience with CI/CD pipelines, GitHub Actions, Kubernetes (K8s), shell scripting (Bash) for automation, and AWS cloud platform

• Effective communication and teamwork – Ability to collaborate with cross-functional teams and communicate technical concepts clearly

What Would Make You Stand Out:

• AI and Machine Learning – Understanding of AI/ML concepts, experience with LLMs, prompt engineering, or integrating AI capabilities into applications

• Data Technologies – Experience with Kafka, PySpark, Parquet and Avro data formats, Apache Airflow for workflow management, or Streamlit for building interactive data applications

• Advanced Data Management – Strong SQL design, query optimization, and database architecture expertise

• Observability – Experience with observability patterns and tools like Datadog, distributed tracing, monitoring, and logging best practices

• DevOps and Infrastructure – Familiarity with ArgoCD for GitOps and Security/Access Management (IAM federation access via Entra ID)

• Financial Services Background – Experience with analytical workflows, financial products, or regulatory processes

Why Fitch?

At Fitch Group, the combined power of our global perspectives is what differentiates us. Our global network of colleagues comes together to accomplish things greater than they ever could alone.

Every team member is essential to our business, and each perspective is critical to our success. We embrace a diverse culture that encourages a free exchange of ideas, guaranteeing your voice will be heard and your work will have an impact, regardless of seniority.

We are building incredible things at Fitch, and we invite you to join us on our journey.

About Fitch Group

Fitch Group is a global leader in financial information services with operations in more than 30 countries. Wholly owned by the Hearst Corporation, we are comprised of three main businesses: Fitch Ratings | Fitch Solutions | Fitch Learning.

For more information please visit our websites: www.fitchratings.com | www.fitchsolutions.com | www.fitchlearning.com

Fitch is committed to providing global securities markets with objective, timely, independent and forward-looking credit opinions. To protect Fitch's credibility and reputation, our employees must take every precaution to avoid conflicts of interests or any appearance of a conflict of interest. Should you be successful in the recruitment process at Fitch Ratings you will be asked to declare any securities holdings and other potential conflicts prior to commencing employment. If you, or your immediate family, have any holdings that may conflict with your work responsibilities, you may be asked to divest yourself of them before beginning work.

Fitch Group is proud to be an Equal Opportunity and Affirmative Action Employer. We evaluate qualified applicants without regard to race, color, national origin, religion, sex, sexual orientation, gender identity, disability, protected veteran status, and other statuses protected by law.

FOR TORONTO ROLES ONLY: Expected base pay rates for the role will be between 130,000 CAD and 160,000 CAD. Actual salaries will be determined on an individualized basis and may vary based on factors including but not limited to education, training, experience, past performance, and other job-related factors. Base pay is one part of Fitch’s total compensation package, which, depending on the position, may also include commission earnings, discretionary bonuses, long-term incentives, and other benefits sponsored by Fitch.

Apply on careers.fitch.group About employer

More about this job

Responsibilities

Develop and maintain robust, scalable full-stack applications using Python and ReactJS to support global financial ratings workflows. Collaborate with cross-functional teams to implement CI/CD pipelines, manage database solutions, and ensure system reliability through testing and performance optimization.

Requirements

Requires 7+ years of hands-on experience in enterprise full-stack development with proficiency in Python, ReactJS, and modern cloud infrastructure. Candidates must possess strong software engineering fundamentals, including OOP, design patterns, and experience with both RDBMS and NoSQL databases.

Skills

Python
Java
ReactJS
FastAPI
Flask
TypeScript
JavaScript
PostgreSQL
Oracle
MongoDB
AWS
Kubernetes
CI/CD
GitHub Actions
Shell scripting
Full-stack development

Benefits

Competitive compensation
Comprehensive benefits
Work-life balance
Training
Certifications
Conference attendance

Visa sponsorship

Not detected in the job text

Keywords

Python
Java
ReactJS
FastAPI
Flask
TypeScript
JavaScript
PostgreSQL
Oracle
MongoDB
AWS
Kubernetes
CI/CD
GitHub Actions
Shell scripting
Full-stack
SOLID principles
OOP
Data structures
Algorithms
Financial services
Cloud computing
API development
Enterprise applications
GitOps
Datadog
Kafka
PySpark
Apache Airflow
Streamlit

Seniority

Senior

Perks

Flexible hours
Paid training

Tools

GitHub Actions
Kubernetes
AWS
PostgreSQL
Oracle
MongoDB
React

Languages

English

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Work requirements

Jobs in Canada