Senior Fullstack Developer Nodejs Python Jobs in Toronto, Canada

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Backend Software Engineer with Python for Scalable Systems

Become a key player in developing robust backend systems as a Software Engineer. Utilize your Python expertise to design and optimize data pipeline architectures, supporting large-scale content enrichment. In this mid-level role, you will work on building distributed systems and scalable backend ser ...

Data Engineer: Python ETL & Cloud Pipelines (Hybrid, Toronto)

A leading data solutions company is looking for a passionate Data Engineer with strong Python skills and experience in ETL development. You will develop and maintain data pipelines, ensuring data integrity and collaborating with data architects. The ideal candidate will have 2+ years in data engineering and fami ...

First SDET for Trust Consents & Preferences (Python/AWS)

Une entreprise technologique recherche son premier SDET dans l'équipe Trust Consents & Preferences. Le candidat concevra des infrastructures de test automatisées pour garantir la conformité et la confiance des clients. Un fort accent sur l'architecture AWS et compétences en Python sont requis. Ce rôle est crucia ...

Full Stack Python Engineer: Build Scalable Cloud APIs

A leading IT services provider in Canada is seeking a software developer to create REST APIs and develop scalable distributed systems. You will work with modern CI/CD practices and cloud environments, utilizing technologies like Docker and Kubernetes. The ideal candidate has strong experience with data processin ...

Data Analyst Risk (Python/SQL, 12 Month Contract)

A recruitment firm is seeking an intermediate Data Analyst for a 12-month contract with a major bank in downtown Toronto. The role involves maintaining Python scripts, creating business requirements, and supporting automation tasks. Strong proficiency in SQL and Python, along with strong communication and proble ...

Full Stack Engineer Go/Python + React, AI Tools

A leading sports betting technology company in Toronto seeks a DevOps Engineer to enhance infrastructure and develop exciting new features. You will manage backend and frontend tasks, optimize databases, and lead growth initiatives in a fast-paced environment. Ideal candidates have experience in Go or Python, wi ...

Full Stack Engineer: Scalable Web Apps (Python, Vue)

A leading bank is seeking a Full Stack Developer who will be responsible for creating scalable web applications. You will collaborate with cross-functional teams and use your expertise in Python and Vue.js. This role requires the ability to design and maintain back-end APIs using FastAPI and writing tests with C ...

AI Full Stack Developer – Canada (Remote)

AI Full Stack Developer Location: Remote (Candidates must be based in Canada) Employment Type: Full-Time, Independent Contractor Compensation: $30–$40 per hour About the Role We are seeking a highly skilled AI Full Stack Developer to join our ...

SOFTWARE ENGINEER IV

WHO WE ARE When it comes to health, we’re always looking for waysto push for better. It’s why we were founded in the first place. In 1957, ourfounder, pharmacist William Wilkinson, witnessed a mother sacrifice her healthby forgoing her own medicine to pay for her sick daughter’s prescripti ...

Security Platform Engineer, Security Automation (Python, Crowdstrike, SIEM)

Job Description :What will you do?Developing automation workflows, the successful candidate will develop playbooks to within Splunk SOAR/Ansible environment to triage, alert or otherwise automate manual processes.The security platform engineer will be responsible for supporting ...

AI Engineer Production ML & LangChain Developer (Remote)

A leading technology solutions provider in Canada is seeking a Middle AI Developer to enhance AI agents, ML pipelines, and NLQ workflows. Candidates should have strong Python skills, practical experience with Databricks, and good SQL knowledge, along with a proactive attitude and the ability to work independentl ...

Robotics Data Pipeline Engineer

A technology firm in Canada is seeking a skilled Data Pipeline Developer to design and maintain multi-camera and sensor data systems. The role involves integrating camera systems, optimizing data processing pipelines, and troubleshooting performance issues. Ideal candidates will have experience with Python or C+ ...

Senior Backend Engineer Checkout Platforms (PBA Core)

A financial technology company is looking for a skilled backend developer to lead projects, support technical decisions, and enhance team metrics in a remote-first environment. Candidates should have over four years of experience in backend system design, proficiency in Python or Kotlin, and strong problem-solvi ...

Junior Solutions Engineer FinTech Onboarding

A leading fintech firm in Montreal is seeking an entry-level software developer to enhance client onboarding and support. In this role, you'll write JSON templates, provide technical assistance, and support process improvements. Successful candidates will have a background in computer science, coding skills in P ...

Backend/Full‑Stack Engineer – Remote, Impact‑Driven

A modern financial solutions company is seeking a Full Stack Developer in Hamilton, Ontario. You will work on implementing business-critical features and design approaches that enhance user experiences. The ideal candidate has over two years of experience and is familiar with React Native, Python, and modern fro ...

Remote Software Engineer: CI/CD & Infra Automation

An innovative tech company is looking for a remote Software Engineer to enhance its CI performance and improve developer workflows. The ideal candidate will have strong proficiency in Python, experience with backend systems, and the ability to work independently. This contract role demands a commitment of around ...

Senior Lead Machine Learning Engineer, Agentic AI

Upwork Inc.’s (Nasdaq: UPWK) family of companies connects businesses with global, AI-enabled talent across every contingent work type including freelance, fractional, and payrolled. This portfolio includes the Upwork Marketplace, which connects businesses with on-demand access to highly skilled talent ...

Freelance Data Science Expert (Python & SQL) / AI Trainer

Freelance Data Science Expert (Python & SQL) / AI Trainer 4 days ago Be among the first 25 applicants Get AI-powered advice on this job and more exclusive features. This opportunity is only for candidates currently residing in the specified country. Your location may a ...

Remote AI Trainer for Civil Eng & Python Mastery

A leading AI development company is seeking experienced Civil Engineers with strong Python skills to evaluate and train AI models on realistic engineering problems. This is a fully remote, flexible part-time role that emphasizes engineering judgment and analytical rigor, while working on non-routine problems. Ca ...

Freelance Statistics Expert with Python Expertise AI Trainer

Mindrift connects specialists with project-based AI opportunities for leading tech companies, focused on testing, evaluating, and improving AI systems. Participation is project-based, not permanent employment. What This Opportunity Involves While each project involves unique tasks ...

Backend Python Engineer – Scalable, AI Driven AWS Systems

A global digital library service is seeking a Software Engineer II to design and optimize scalable systems within their ML Data Engineering team. The role focuses on building event-driven solutions in Python, integrating machine learning models to enrich content. Candidates should have extensive experience with ...

Civil Engineer with Python Experience Freelance AI Trainer

Civil Engineer with Python Experience - Freelance AI Trainer Posted 3 days ago. Be among the first 25 applicants. Location requirement: Candidates must be currently residing in the specified country. Submit resume in English and indicate your level of English. ...

Backend Tech Lead Python/Django (Remote, Eastern Hours)

A modern solutions provider is looking for an experienced Backend Development Technical Lead (Python/Django) in Canada to design and develop backend systems. The ideal candidate will have over 7 years of experience with RESTful APIs, a strong background in Python, and excellent leadership skills. This remote pos ...

Mechanical Engineer with Python Experience Freelance AI Trainer

Mechanical Engineer with Python Experience – Freelance AI Trainer 1 week ago Be among the first 25 applicants This opportunity is only for candidates currently residing in the specified country. Your location may affect eligibility and rates. Please submit your resume in Englis ...

Freelance Data Science Expert (Python & SQL) / AI Trainer

Freelance Data Science Expert (Python & SQL) / AI Trainer This opportunity is only for candidates currently residing in the specified country. Your location may affect eligibility and rates. Please submit your resume in English and indicate your level of English proficiency. At Mi ...

Backend Tech Lead Python/Django (Remote, Eastern Hours)

A leading technology firm is seeking a Backend Development Technical Lead to design and innovate backend systems using Python and Django. The ideal candidate will have over 7 years of experience in developing RESTful APIs and leading teams, with a strong focus on code quality and performance. This is a remote po ...

AI Driven Full Stack Engineer (Python, React) Remote

A digital insurance startup in Canada is seeking an AI-Driven Full Stack Engineer to lead the design and development of features for an AI-powered web application. This role requires expertise in Python, React, and AI/ML technologies. The successful candidate will contribute to innovative projects while enjoying ...

Staff Backend Engineer (Python) — AI Duo Chat (Remote)

A leading software development platform is seeking a Staff Backend Engineer to lead the backend architecture for their AI-powered Duo Chat service. This remote role focuses on integrating generative AI models and improving backend services using Python and Ruby on Rails. The ideal candidate will have significant ...

AI Trainer: Crafting Computational Statistics with Python Expertise

Become a freelance AI Trainer focused on designing original statistical problems. Utilize your Python skills to create challenges that require non-trivial reasoning and intensive computation. This opportunity is ideal for statistics specialists who are open to non-permanent, part-time projects. You’ ...

Freelance AI Trainer: Stats & Python Specialist (Part Time)

A leading tech company in the AI field is seeking statistics specialists for project-based roles focusing on designing computational problems and Python programming. Ideal candidates will have a degree in Statistics, proficiency in Python, and strong written English skills. Compensation can reach $38 per hour, d ...

Mechanical Engineer & Python Pro for AI Problem Design

A project-based AI opportunity provider is seeking contributors to design and solve computational engineering problems. Candidates should possess a degree in Mechanical Engineering and be proficient in Python, with a focus on numerical methods. The role requires strong written English skills, with tasks estimate ...

Project Based AI Trainer: Statistics and Python Specialist

Drive innovation in AI as a freelance trainer focusing on statistics and Python programming. Collaborate on projects that involve designing complex mathematical challenges for leading tech firms. This role is ideal for statistics professionals with Python expertise, eager for part-time, flexible opp ...

Software Engineer Python Ubuntu Pro client graduate level

Join to apply for the Software Engineer - Python - Ubuntu Pro client - graduate level role at Canonical Canonical is a leading provider of open source software and operating systems to the global enterprise and technology markets. Our platform, Ubuntu, is very widely used in breakthr ...

Remote Backend SaaS Engineer | Python, Linux, Open Source

A leading open-source software provider is seeking a Software Developer (Backend SaaS) to join their team remotely in the Americas. The ideal candidate has strong expertise in Python, public-facing APIs, and web frameworks like Flask or Django. Responsibilities include collaborating with a distributed developmen ...

Remote Full Stack Engineering Lead (Go/Python & React)

A leading digital product agency is seeking a Lead Engineer in Vancouver, Canada. This role requires 7+ years of experience in backend development with expertise in Go and Python. You will lead technical discussions and oversee engineering teams, ensuring alignment and performance. Benefits include extended heal ...

Freelance Research Scientist in Chemistry with Python Expertise

Explore a freelance opportunity as a Research Scientist focused on Chemistry. Utilize your analytical skills while developing high-impact Python solutions for complex scientific problems in a flexible environment. This role is ideal for professionals with a strong background in Physics, Chemistry, o ...

Volunteer Python/C# QA Tester – Remote Ops Team

A nonprofit organization is looking for Beta Testers to join their Operations Team. Ideal candidates should have strong skills in Python and/or C#, and be responsible for testing applications, identifying bugs, and ensuring quality standards. A Bachelor’s degree in Computer Science or related fields is required, ...

VIRTUAL: Beta, Python or C# Testers / Operations Team

- Separator VIRTUAL: Beta, Python or C# Testers / Operations Team# VIRTUAL: Beta, Python or C# Testers / Operations TeamRemote / VirtualApr 03, 2026- Oct 03, 2026## Opportunity Description**Volunteer Job Listing:** **Beta, Python or C# Testers / Operations Team.****Organization:** DEFEND (Nonprofit) and 65squar ...

Remote First Full Stack Engineer: React Native & Python

A financial technology company based in Canada is seeking a Full Stack Developer to join their Card Acquisition team. This role requires a minimum of 2 years of full stack development experience, knowledge in React Native, Python, and modern front-end technologies. The company offers a remote-first work culture ...

Remote First Full Stack Engineer: React Native & Python

A leading financial technology company in Canada is seeking a Full Stack Developer to enhance user experiences through innovative solutions and seamless designs. You will work closely with product and engineering teams to build high-quality features. Ideal candidates have 2+ years of experience in full stack dev ...

Remote First Full Stack Engineer: React Native & Python

A leading financial technology company is seeking a Full Stack Developer to enhance user experiences through innovative features in a remote-first environment. With a focus on quality and collaboration, the ideal candidate will have at least 2 years of experience and proficiency in technologies like React Native ...

Remote First Full Stack Engineer: React Native & Python

A financial technology company is seeking a Full Stack Developer to implement critical features and enhance user experiences. The role involves collaboration with cross-functional teams, focusing on both front-end and back-end development using technologies such as React Native and Python. Candidates should have ...

Software Engineer Python Ubuntu Pro client graduate level

Join to apply for the Software Engineer - Python - Ubuntu Pro client - graduate level role at Canonical Join to apply for the Software Engineer - Python - Ubuntu Pro client - graduate level role at Canonical Get AI-powered a ...

Remote Backend Engineer II — APIs & Scale (Python/Kotlin)

A leading financial technology company in Canada seeks a Software Engineer with 1.5+ years of experience in backend system development using Python or Kotlin. The position supports remote work but may occasionally require office attendance. Responsibilities include task breakdown for projects, collaborating thro ...

VIRTUAL: Beta, Python or C# Testers / Operations Team

- Separator VIRTUAL: Beta, Python or C# Testers / Operations Team# VIRTUAL: Beta, Python or C# Testers / Operations TeamRemote / VirtualPosted on Mar 03, 2026## Opportunity Description**Volunteer Job Listing:** **Beta, Python or C# Testers / Operations Team.****Organization:** DEFEND (Nonprofit) and 65square**P ...

Remote Machine Learning Team Lead Seeking Python Innovators

Take charge as a Machine Learning Team Lead doing impactful work in a remote setting. Guide Python developers to create safer online experiences using cutting-edge technology. As the Team Lead, you will coordinate efforts to implement innovative machine learning solutions while mentoring a team of s ...

Innovative Remote Software Engineer Specializing in Python Systems

Elevate your career as a remote Software Engineer, focusing on developing innovative Python solutions. Contribute to groundbreaking AI research and model enhancement successfully. As a Software Engineer in this contract role, you'll engage with cutting-edge technology while supporting AI research la ...

Contract Software Engineer Focusing on Python Systems Development

Shape the future of AI as a remote Software Engineer specializing in complex Python systems. Join a team that values your skills and expertise in modern coding and technology while impacting real-world applications. In this contract opportunity, you will focus on creating and maintaining scalable Py ...

Remote Python Engineer Open Source and Cloud Innovation

A leading open source software company is hiring Python engineers across all levels of seniority. Candidates should be passionate about open-source innovation and capable of producing high-quality Python code. The role involves software development for various applications, including those running on servers and ...

Remote Python Engineer Open Source and Cloud Innovation

A leading software provider is hiring Python Engineers for remote roles globally. You'll write high-quality Python software while collaborating with a distributed team and contributing significantly to open-source projects. Ideal candidates will have a degree in Computer Science or a related field, experience wi ...

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