senior python engineer jobs in Toronto

Mechanical Engineer with Python Experience – Freelance AI Trainer1 week ago Be among the first 25 applicantsThis 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. At Mindrift, innovation meets opportunity....

Outlier is seeking OpenClaw Agent Builder contractors to shape autonomous agents for real-time AI environments. This freelance, remote role offers up to $50 USD/hr with flexible hours and weekly payments.You'll work on end-to-end agent design, evaluation, and optimization, collaborating with top AI teams to improve LLM-driven orchestration and multi-turn...

We are assisting our reputable client in the geoscience industry with the search for a Senior Back End Developer (C++/Python). Location: Toronto, ON - Hybrid (2 days in the office) Compensation & Perks: $130,000-$155,000/year plus health benefits, RRSP contributions, profit sharing, employee stock purchase plan, educational reimbursement, and more. ...

Principal Python Engineer — ML Infrastructure (AI Training) About The Role What if your Python expertise could directly shape the infrastructure that powers the most advanced AI systems in the world? We're looking for a Principal Python Engineer in Toronto to design and build the data pipelines, annotation tooling, and evaluation systems that leading AI...

ClickHouse is the hottest analytic database on the planet and Altinity is the home of ClickHouse experts who build real-time data solutions that run anywhere. ClickHouse now has more contributors than ElasticSearch, previously the biggest Open Source analytic project on GitHub.Altinity is a distributed company that values employees, open-source, and doing...

Collabera is hiring an AI Engineer in Toronto with 6+ years of software experience and 1-2+ years building GenAI apps. You will craft GenAI-powered products using Python, React/Next.js, and AWS, building LLM pipelines, RAG solutions, and AI agents. You’ll own architecture through deployment, work with product managers, data scientists, and stakeholders,...

A global IT services firm seeks a Senior Python Developer in downtown Toronto for a 6-month contract, with a potential for renewal. The role includes managing project timelines, designing software solutions, and developing scalable applications in a hybrid work environment. Must have experience in Python and Cloud technologies, with Agile practices strongly...

A tech consultancy firm in Toronto is seeking a Technical Business Analyst with expertise in AWS, Python, and MySQL. The role involves documenting business processes, defining KPIs, and collaborating with stakeholders on API requirements. With 6-8 years of experience required, the position is designed for mid-senior level candidates eager to tackle technical...

Senior Consultant - Python Developer (Data Solutions & Analytics) Location: Toronto Other locations: Primary Location Only Date: Sep 8, 2026 Requisition ID: 1742084 At EY, we’re all in to shape your future with confidence. We’ll help you succeed in a globally connected powerhouse of diverse teams and take your career wherever you want it to...

Design, implement, and refine 3D game and simulation features using Panda3D. Develop custom tools and gameplay systems that provide flexibility and scripting capabilities. Collaborate with developers, artists, and researchers to translate project requirements into efficient and maintainable code. Optimize application performance across diverse hardware...

Our employees are at the heart of everything we do. Together, we help people, businesses, and society prosper in good times and be resilient in bad times. Our employee promise represents Intact’s commitment to you in exchange for living our Values, striving to do your best work, being open to change and investing in your career. In return, we promise to...

Our employees are at the heart of everything we do. Together, we help people, businesses, and society prosper in good times and be resilient in bad times.Our employee promise represents Intact’s commitment to you in exchange for living our Values, striving to do your best work, being open to change and investing in your career. In return, we promise to...

Our employees are at the heart of everything we do. Together, we help people, businesses, and society prosper in good times and be resilient in bad times. Our employee promise represents Intact's commitment to you in exchange for living our Values, striving to do your best work, being open to change and investing in your career. In return, we promise to...

Our employees are at the heart of everything we do. Together, we help people, businesses, and society prosper in good times and be resilient in bad times.Our employee promise represents Intact’s commitment to you in exchange for living our Values, striving to do your best work, being open to change and investing in your career. In return, we promise to...

Senior Python API development in Toronto calls for RESTful services expertise and independent execution. This 12-month contract includes enterprise software delivery. As a Senior Python Developer, you will deliver solutions with proven ownership and minimal supervision. The work includes Python, APIs, CI/CD pipelines, and testing. You will also address...

A leading technology company in Canada is seeking a Mid-Senior level Backend Developer to join their fully remote engineering team. You will be responsible for designing and maintaining Python-based services, managing databases, and ensuring system reliability. The ideal candidate has 3-5 years of backend experience, strong knowledge of AWS and RabbitMQ, and...

Senior Python API development in Toronto calls for RESTful services expertise and independent execution. This 12-month contract includes enterprise software delivery. As a Senior Python Developer, you will deliver solutions with proven ownership and minimal supervision. The work includes Python, APIs, CI/CD pipelines, and testing. You will also address...

A software solutions provider is seeking a QE/SDET in Toronto, ON for a hybrid position (4 days a week). The role requires 8-10+ years of experience, strong programming skills in Java/Python, and expertise in test automation frameworks. Key responsibilities include designing automation solutions, collaborating with teams to validate integrations, and...

Our employees are at the heart of everything we do. Together, we help people, businesses, and society prosper in good times and be resilient in bad times. Our employee promise represents Intact’s commitment to you in exchange for living our Values, striving to do your best work, being open to change and investing in your career. In return, we promise to...

A technology firm in Toronto is seeking a Front-End Developer to design and develop responsive, user-friendly interfaces using modern frameworks. The role requires collaboration with designers to implement UI/UX best practices and optimize performance for speed and accessibility. Strong problem-solving skills and the ability to mentor junior members are...