18,147 Toronto jobs
Open tech roles based in Toronto.
Data & AI Platform Engineer (Onsite, Part-Time)
Supports a large Data & AI transformation for the Government of Ontario: running batch model inferences, assisting with DSPy pipelines, preparing data for model evaluation, and maintaining reproducible experiment scripts. Core stack is Python with Databricks, MLflow, DSPy, and LangChain in an on-site, part-time role.
Platform Engineering – Data Infrastructure III
Platform engineer building and running the data infrastructure platform that powers Peoples Group's financial products for Canadian merchants. Day to day: infrastructure as code with Terraform, CI/CD golden paths for data engineers, SRE-style reliability (SLOs, on-call), and security-by-design across AWS/Azure and tools like Snowflake and Kafka.
Data & AI Engineer - Real World Data and Healthcare Intelligence
Sanofi is hiring a Data & AI Engineer in Toronto (hybrid, 3 days/week onsite) for its Real World Data and Healthcare Intelligence team. The role owns the backend of data applications end to end: building ETL and data processing pipelines, optimizing Snowflake/PostgreSQL queries, developing Python/FastAPI microservices, and managing CI/CD on AWS.
Software Engineer
Full-stack engineer at PolicyMe, a Toronto-based digital insurance startup, building AI-powered web applications that automate insurance broker workflows. Works across frontend, backend, and AI/ML using Python, React, Redux, PostgreSQL, n8n, LangChain/LangGraph, and AWS. Remote-first within Canada.
AI Fullstack Engineer (Senior Associate) - Canada
Senior full-stack engineer on Huron's AI Tech Team building enterprise-ready AI applications: React/TypeScript front ends, Python (FastAPI/Django/Flask) backend services and APIs, cloud integrations on Azure/AWS, and CI/CD delivery within cross-functional pods serving consulting clients.
Full Stack Engineer, Agentic AI
Full-stack engineer on Lazer's Lazer Core consulting team, building AI-powered applications for clients: architecting and shipping TypeScript/React/Node/Python/Go apps with LLMs, agentic workflows (MCP), and cloud data pipelines.
Senior Associate AI Full Stack Engineer
Builds enterprise-ready AI applications at Huron Consulting Group: React/TypeScript frontends, Python backend services and APIs, plus authentication, data management, and cloud integrations on Azure or AWS with Docker/Kubernetes. Works in delivery pods with AI engineers, architects, and client teams across Canada.
Senior Full-Stack Engineer — Java/Spring, React, Cloud
Apex Systems is hiring a Senior Full-Stack Engineer in Toronto for a hybrid role (Mondays on-site) to design, build, and maintain scalable enterprise applications, APIs, microservices, and cloud deployments using Java, Spring Boot, React, and Node.js.
Remote Full Stack Engineer
Contractor role at Turing (an AI research/data accelerator for frontier labs) creating training and benchmark datasets for LLMs: curating code examples, correcting and refining AI-generated code, and building Python verification agents. Primary stack is Python, plus JavaScript/React, C/C++, Java, Rust, and Go; flexible 10-40 hrs/week.
Remote Python Full Stack Engineer
Python full-stack engineer who evaluates and curates code for Turing's LLM training: building datasets, reviewing AI-generated code for quality, and creating Python agents and automated verification tools. Main stack is Python, with exposure to JavaScript/React, C/C++, Java, Rust, and Go.
Azure Fabric Data Engineer Finance
CareRx seeks a Data Engineer (4+ years) to build and maintain Azure and Microsoft Fabric data platforms for finance reporting — including CDC pipelines, transforming raw data into curated reporting layers, and tested deployments/rollbacks. Requires strong SQL, dimensional modelling, Fabric (OneLake, Warehouse, Mirroring), and Git; hybrid with one day weekly in Toronto.
Machine Learning Data Engineer RBC
Machine Learning Data Engineer on RBC Wealth Management's Toronto-based Data & AI team, supporting the full ML data lifecycle: feature engineering, training data prep, model integration/deployment, and scalable pipeline development using Python, SQL, and modern data platforms.
Data Platform Engineer
As Xanadu's first dedicated data engineer (quantum computing, Toronto-based), you'll build and own a cloud data platform — ingestion, transformation, serving — consolidating pipelines across R&D, manufacturing, and business analytics. Core stack: Python, SQL, lakehouse formats (Delta/Iceberg/Hudi), dbt, and orchestrators like Airflow/Dagster/Prefect.
Senior Snowflake Data Engineer Toronto
Onsite senior role at Next Pathway in Downtown Toronto: lead a data engineering team building Snowflake-native pipelines, ELT/ETL processes, and analytics-ready datasets for a major enterprise client's Snowflake platform, with strong focus on SQL, data modeling, and performance/cost optimization.
Data Engineer
Data Engineer running CareRx's enterprise data platform day to day: keeping data flowing, adding new sources via CDC, and building Azure/Microsoft Fabric pipelines that turn raw data into trusted structures for reporting and AI/ML. Requires 1 day/week onsite in Toronto (office moving to Richmond Hill in 2027).
Remote Full Stack Developer
Contractor role for an AI training data company: evaluate, correct, and curate code to build datasets that train and benchmark large language models. Work is primarily Python (plus JavaScript/React, C/C++, Java, Rust, Go), flexible 10-40 hrs/week over a 1-month engagement; applicants must be US-based.