154,339+ Lead Fullstack Engineer Python Fastapi Jobs in Toronto, Canada — Local Employers Hiring June 2026

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Staff AI Engineer: Enterprise AI & MLOps Leader

A leading global information services company in Toronto is seeking a Staff Software Engineer (AI) to join their Forward Engineering team. The role involves architecting and implementing enterprise-scale AI solutions, requiring 8+ years of software engineering experience and mastery of AI/ML frameworks like Pyth ...

Senior Data Platform Engineer — Distributed Systems

A leading software company in Toronto is seeking a skilled software engineer to develop the next generation of data platforms. This role involves building scalable APIs and microservices, managing distributed systems, and implementing modern cloud-native practices. Candidates should have 5+ years of experience, ...

World Models Research Engineer Generative AI for Dynamic Scenes

A leading autonomous technology company in Toronto is seeking a Research Engineer to design and implement generative and predictive modeling systems. You will collaborate with research scientists to develop algorithms for modeling complex environments, leveraging your strong Python and PyTorch skills. The positi ...

Senior ML Data Pipelines Engineer — Flexible Hours

A leading technology start-up in Toronto is seeking a Senior/Staff Software Engineer to build scalable ML data pipelines for their autonomous driving platform. The candidate will work closely with renowned scientists and engineers, solving complex data challenges. Key qualifications include a degree in computer ...

Data Engineer, Trading Analytics on AWS

A leading IT consulting firm in Toronto is seeking a Data Engineer to enhance trading operations through cloud-based solutions. You will design, build, and maintain a scalable data platform, ensuring data quality and alignment with trading analytics. The ideal candidate should have over 8 years of experience, st ...

Staff Software Engineer: Platform & AI Architect

A leading software company in Toronto is seeking a Staff Engineer to shape its technical direction and influence various strategic areas. The role involves navigating complex problems, championing systemic improvements, and upholding engineering standards. Candidates should have over 10 years of experience in so ...

Senior Cloud Security Ops Engineer — Remote Flexible

A tech company specializing in AI is seeking a Senior Security Operations Engineer who will be responsible for advising leadership on security risks and hardening cloud environments. The ideal candidate has over 5 years of experience in SecOps, a strong background in cloud security, and is comfortable with progr ...

Senior Software Engineer, Simulation Platform – Remote

A leading autonomous technology firm, located in Toronto, seeks an experienced engineer to contribute to developing Waabi World, a premier simulator for autonomous vehicles. Candidates will enhance the simulation platform's performance, design orchestration software, and interact with internal users to improve t ...

Senior Backend Engineer for Scalable AI Platform

A leading AI technology company in Toronto is seeking an experienced Senior Backend Software Engineer. In this role, you will build backend services and infrastructure to support AI workloads, design scalable APIs, and collaborate with frontend and ML engineers. Candidates should have over 5 years of backend eng ...

Generative AI Engineer – Innovation Team (Toronto)

A leading financial services company in Toronto is seeking a Machine Learning Engineer to join their AI Innovation teams. The role involves building and deploying cutting-edge ML systems, collaborating with various product teams, and leveraging cloud infrastructure. Ideal candidates should have a solid foundatio ...

Senior Product Security Engineer – Remote Canada Equity

A leading financial technology company is looking for a Senior Product Security Engineer to enhance the security of its products. This remote role requires collaboration with product teams to embed security throughout the development lifecycle. Candidates should have a robust understanding of web application arc ...

Senior ML Engineer — MLOps & Cloud AI Platform

A leading insurance provider in Toronto is seeking a Senior Machine Learning Engineer to design and deploy ML solutions. Key responsibilities include developing ML pipelines, optimizing performance, and collaborating cross-functionally. The ideal candidate has over 5 years of experience, proficiency in Python an ...

FinTech Software Engineer – Carbon Markets Platform

A leading carbon markets firm based in Toronto is seeking a Software Engineer to develop features for their financial intelligence platform. This role involves working with complex financial datasets and requires strong technical skills in Python and TypeScript. The ideal candidate will have over 5 years of expe ...

Cloud Security Engineer: GKE/Azure, DevSecOps Expert

A leading bank in the Americas is seeking a Cloud Security Engineer to join its team in Toronto. This role involves designing, developing, and maintaining cloud security tools while working collaboratively across various teams. The ideal candidate will have over three years of software development experience in ...

Senior Verification Engineer: RIS Stress Tool for CPUs

A global technology leader in Toronto seeks a Senior Verification Engineer to develop and deploy a sophisticated verification tool for CPU cores. This role requires expertise in software design, programming languages like C and Python, and a solid understanding of CPU architecture. The ideal candidate has 5-10 y ...

AI Engineer – Memory & Cross Session Retrieval (Remote)

A global technology intelligence provider seeks an AI/Agent Engineer in Toronto to develop innovative AI-powered systems. The role involves building retrieval systems and optimizing semantic search to enhance user experience. Candidates should possess over 3 years of experience in production Python systems, fami ...

Remote Full Stack AI & Automation Engineer

A growing tech startup is seeking an engineer passionate about building systems at the intersection of automation, AI, and web security. This remote role is ideal for those eager to learn and take ownership of significant aspects of the stack. Responsibilities include building web scrapers, fine-tuning LLMs, mai ...

Hybrid Toronto: Senior Data Platform Engineer

A technology company addressing legal justice seeks an experienced Data Engineer to build a robust data platform. Responsibilities include designing scalable data pipelines, collaborating with cross-functional teams, and ensuring data quality. Candidates should have 4+ years of experience, strong Python and SQL ...

AI Agent Engineer: LLMs, RAG & Prompt Mastery

A technology company in Toronto is seeking an experienced software engineer to develop next-gen AI tools that enhance critical thinking. The ideal candidate will fine-tune language models and optimize prompts while collaborating with product and design teams. They should have strong Python experience and a passi ...

Staff Web3 Engineer Tokenization & Wallet Platform

A financial technology company is seeking a Staff Software Engineer in Toronto. This role is essential in developing the Robinhood Chain and Tokenization Engine, emphasizing mentorship and technical excellence. The ideal candidate has over 10 years of experience in distributed systems and strong backend developm ...

Senior Backend Engineer, AI Platform (Hybrid Toronto)

A technology company in Toronto seeks a backend engineer to design and enhance systems that leverage AI for the legal industry. The ideal candidate will have extensive experience in backend systems design and cloud technologies, and will play a crucial role in delivering scalable solutions. This hybrid role requ ...

Quantitative Software Engineer: ML, Math & LargeScale

A renowned consulting firm in Toronto is looking for a Quantitative Software Engineer to tackle complex computational challenges. Responsibilities include developing systems for machine learning and quantitative algorithms, while collaborating with research partners. Ideal candidates have a BS in Computer Scienc ...

Senior Software Engineer, Security for AI Platform (Remote)

A leading AI company in Toronto is seeking a Senior Software Engineer with a focus on security. This role involves building security features for an AI workspace platform, developing autonomous agents, and performing application testing. Applicants should have over 5 years of experience in software engineering, ...

Senior Backend Engineer, AI Platform (Hybrid Toronto)

A technology company in Toronto seeks a backend engineer to design and enhance systems that leverage AI for the legal industry. The ideal candidate will have extensive experience in backend systems design and cloud technologies, and will play a crucial role in delivering scalable solutions. This hybrid role requ ...

Senior ML Engineer — MLOps & Cloud AI Platform

A leading insurance provider in Toronto is seeking a Senior Machine Learning Engineer to design and deploy ML solutions. Key responsibilities include developing ML pipelines, optimizing performance, and collaborating cross-functionally. The ideal candidate has over 5 years of experience, proficiency in Python an ...

Principal ML Engineer, Evaluation for CAD/BIM (Remote)

A leading software company is seeking a Principal Machine Learning Engineer based in Toronto or Vancouver. This role involves evaluating ML models for CAD and BIM, working closely with various teams to ensure high standards of quality and reliability. Candidates should have at least 4 years of experience in ML e ...

Real Time FinTech ML Engineer: Market Signals

A fintech company in Canada is seeking a skilled Machine Learning Engineer to build innovative models that power their analytics platform. Responsibilities include developing algorithms for accurate market signal generation and analyzing complex financial datasets. The ideal candidate has advanced Python profici ...

Generative AI Engineer – Innovation Team (Toronto)

A leading financial services company in Toronto is seeking a Machine Learning Engineer to join their AI Innovation teams. The role involves building and deploying cutting-edge ML systems, collaborating with various product teams, and leveraging cloud infrastructure. Ideal candidates should have a solid foundatio ...

AI Agent Engineer: LLMs, RAG & Prompt Mastery

A technology company in Toronto is seeking an experienced software engineer to develop next-gen AI tools that enhance critical thinking. The ideal candidate will fine-tune language models and optimize prompts while collaborating with product and design teams. They should have strong Python experience and a passi ...

Senior Software Engineer, AI Security & DevSecOps

A cutting-edge AI company in Toronto is seeking a Senior Software Engineer focusing on security. You will be responsible for developing and implementing security features, ensuring safe user authentication, and managing sensitive data. Ideal candidates have over 5 years of experience in secure software developme ...

Analytics Engineer: AI Driven Value Creation

A technology-focused firm in Toronto is seeking a talented Analytics Engineer to join their team. You will collaborate with analytics engineers to design and develop advanced analytics solutions for private equity-backed clients. The ideal candidate has experience in data analytical techniques and strong program ...

Senior Data Platform Engineer — Hybrid (Toronto)

A technology company in Toronto is seeking a Data Engineer to build and maintain scalable data platforms and pipelines. The role involves collaborating with teams to provide data solutions, and requires proficiency in Python, SQL, and cloud technologies like BigQuery and Snowflake. Candidates should have 4+ year ...

Principal ML Engineer, Evaluation for CAD/BIM (Remote)

A leading software company is seeking a Principal Machine Learning Engineer based in Toronto or Vancouver. This role involves evaluating ML models for CAD and BIM, working closely with various teams to ensure high standards of quality and reliability. Candidates should have at least 4 years of experience in ML e ...

Remote Prompt & AI Agentification Engineer Intern

An innovative AI start-up is looking for a Prompt & Agentification Engineer Intern to work remotely and collaborate on critical AI projects. This Master’s level internship requires strong data analysis and programming skills in Python and familiarity with AI models. Responsibilities include designing prompts, op ...

Senior Data Engineer — Databricks on AWS (Remote)

A leading data solutions company is seeking a Senior Data Engineer to join their fully remote team. In this role, you will design and build scalable ETL/ELT pipelines using Databricks on AWS, ensuring data quality and collaborating closely with cross-functional teams. The ideal candidate has over 7 years of expe ...

Cloud Security Engineer: GKE/Azure, DevSecOps Expert

A leading bank in the Americas is seeking a Cloud Security Engineer to join its team in Toronto. This role involves designing, developing, and maintaining cloud security tools while working collaboratively across various teams. The ideal candidate will have over three years of software development experience in ...

Senior Automation Test Engineer UI & API Automation

A custom software development company is seeking a Senior Automation Test Engineer in Canada. The role involves designing, developing, and maintaining automated UI test solutions with a strong focus on API/Web Service testing and collaboration with manual testing teams. Ideal candidates should possess at least 4 ...

Senior Cloud Security Ops Engineer — Remote Flexible

A tech company specializing in AI is seeking a Senior Security Operations Engineer who will be responsible for advising leadership on security risks and hardening cloud environments. The ideal candidate has over 5 years of experience in SecOps, a strong background in cloud security, and is comfortable with progr ...

Quantitative Software Engineer: ML, Math & LargeScale

A renowned consulting firm in Toronto is looking for a Quantitative Software Engineer to tackle complex computational challenges. Responsibilities include developing systems for machine learning and quantitative algorithms, while collaborating with research partners. Ideal candidates have a BS in Computer Scienc ...

Senior Backend Engineer for Scalable AI Platform

A leading AI technology company in Toronto is seeking an experienced Senior Backend Software Engineer. In this role, you will build backend services and infrastructure to support AI workloads, design scalable APIs, and collaborate with frontend and ML engineers. Candidates should have over 5 years of backend eng ...

Remote SDK Engineer Multi Language Development

A leading IT staffing firm is seeking a skilled SDK Engineer to support and enhance existing client SDKs across multiple programming languages. This remote role involves hands-on development, comprehensive testing, and collaboration with the FGA team. Candidates should be proficient in Go, JavaScript, .NET, Pyth ...

Data Engineer II Data Modeling, ETL & Governance

A global financial institution is seeking a Data Engineer in Toronto to provide a broad range of data engineering functions. The role includes data modeling, ETL processes, and data quality, requiring strong skills in Python and SQL along with experience in Azure Cloud Services. Candidates should possess a relev ...

Senior Data Engineer Cloud ETL & BigQuery Expert (Remote)

A growing data product company in Canada is looking for an experienced Data Engineer to join its dynamic team. The candidate will design and maintain scalable ETL pipelines, oversee data infrastructure, and work closely with enterprise clients for data solutions. Key qualifications include 5+ years of experience ...

Senior AI Full Stack Engineer – LLM Apps

A leading management consulting firm in Toronto is seeking a Sr. Associate Engineer – AI Full Stack Developer. In this role, you will be tasked with designing and deploying sophisticated AI solutions for Pharma R&D. Strong proficiency in Python and experience with large language models is essential. The position ...

Staff AI Engineer: Enterprise AI & MLOps Leader

A leading global information services company in Toronto is seeking a Staff Software Engineer (AI) to join their Forward Engineering team. The role involves architecting and implementing enterprise-scale AI solutions, requiring 8+ years of software engineering experience and mastery of AI/ML frameworks like Pyth ...

Senior Design Verification Engineer, Photonics AI Compute

A cutting-edge technology firm in Toronto is seeking a Design Verification Engineer to define methodologies and create test plans for integrated digital, analog, and photonic devices. The ideal candidate will have over 8 years of experience in design verification, strong expertise in UVM, and proficiency in Pyth ...

Senior Design Verification Engineer, Photonics AI Compute

A cutting-edge technology firm in Toronto is seeking a Design Verification Engineer to define methodologies and create test plans for integrated digital, analog, and photonic devices. The ideal candidate will have over 8 years of experience in design verification, strong expertise in UVM, and proficiency in Pyth ...

Principal ML Engineer, Evaluation for CAD/BIM (Remote)

A leading software company is seeking a Principal Machine Learning Engineer based in Toronto or Vancouver. This role involves evaluating ML models for CAD and BIM, working closely with various teams to ensure high standards of quality and reliability. Candidates should have at least 4 years of experience in ML e ...

Cloud Security Engineer: GKE/Azure, DevSecOps Expert

A leading bank in the Americas is seeking a Cloud Security Engineer to join its team in Toronto. This role involves designing, developing, and maintaining cloud security tools while working collaboratively across various teams. The ideal candidate will have over three years of software development experience in ...

Senior Cloud Security Ops Engineer — Remote Flexible

A tech company specializing in AI is seeking a Senior Security Operations Engineer who will be responsible for advising leadership on security risks and hardening cloud environments. The ideal candidate has over 5 years of experience in SecOps, a strong background in cloud security, and is comfortable with progr ...

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