530,576+ Lead Fullstack Engineer Python Fastapi Jobs in Canada — Top Companies Hiring June 2026

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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 ...

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, ...

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 ...

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 ...

Associate Software Engineer VFX Tools & Pipelines

A major entertainment company in Vancouver seeks an Associate Software Engineer to support a talented team in developing innovative technologies. This role involves writing clean code, supporting senior developers, and learning new technologies. Candidates should hold a relevant Bachelor's degree and have experi ...

Senior Full Stack Engineer, Trust & Safety (Remote)

A leading fintech company in Canada is looking for a Full Stack Engineer to own and deliver high-availability systems. You will work collaboratively across teams to solve complex problems and have the opportunity to develop your skills while contributing to significant projects. Candidates should have over 4 yea ...

Data Engineer III Spark, AWS & Snowflake (Toronto)

A leading quick-service restaurant company is looking for a skilled Big Data Engineer III to build and maintain scalable data pipelines. This role requires expertise in Python, Apache Spark, AWS, and Snowflake, and is based in Toronto, ON. You will collaborate with data scientists and analysts to transform data ...

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, ...

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 ...

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 ...

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 ...

AI Engineer: Scalable Data & LLM Solutions

An innovative technology firm in Mississauga is seeking an AI Engineer to design and operationalize intelligent systems. The role involves creating scalable data pipelines and delivering AI-driven solutions to enhance product metrics. The ideal candidate will have 3-5 years of experience in data and AI systems, ...

Virtualization & CGVDI Validation Engineer

A leading technology company is seeking an IP Systems Engineer to join their Platform Validation Team in Markham. The role includes designing validation test plans, driving technical innovations, and collaborating with various teams. Ideal candidates should have a strong background in programming (Python, C/C++, ...

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 ...

Backend Engineer — Workflow & CI/CD Infrastructure

A leading technology company in Vancouver is looking for a backend engineer to own complex systems and integrate developer workflows. You will design APIs and optimize services for performance. The role requires 3+ years of experience in software engineering, with proficiency in backend languages such as Go, Pyt ...

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 Data Engineer – Real Time & AI Driven Platform

A financial technology company in downtown Vancouver is seeking a Senior Data Engineer. In this full-time role, you will architect and deliver resilient data infrastructures and pipelines using AWS-native services and Snowflake. You will champion AI integration and collaborate with cross-functional teams on stra ...

MAAS Systems Engineer — Lab Automation & Linux

A leading open-source software company in Toronto is seeking a MAAS Systems Engineer to manage operations of a lab focused on Ubuntu server certification. This role requires strong Python programming skills and Linux administration experience. You will work with diverse hardware, develop automation tools, and co ...

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 ...

Senior ML Engineer & Data Scientist — Remote

A global AI solutions provider is looking for a mid-to-senior Machine Learning Engineer / Data Scientist to build and deploy machine learning solutions that have measurable business impacts. This role covers the entire ML lifecycle from problem framing to model deployment and monitoring. Candidates should have s ...

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 ...

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 Full‑Stack Engineer — AI for Accelerating Discovery

A leading global editing service is seeking a Senior Full‑Stack Engineer to develop AI-driven products that empower researchers. In this role, you'll design scalable web applications, develop high-performance back-end and front-end systems, and integrate AI systems. The ideal candidate will have extensive experi ...

Staff Data Platform Engineer — Remote

A leading real estate technology company is looking for a Staff Software Engineer to enhance their data platform. This role involves building robust data pipelines, designing scalable backend services, and ensuring data quality. The ideal candidate has over 10 years of software engineering experience, strong ski ...

Senior Staff ML Engineer — Fraud & Risk Systems (Equity)

A financial services technology company in Canada seeks a Senior Staff Machine Learning Engineer. This position involves defining and executing multi-year technical strategies for machine learning while collaborating with cross-functional teams. The ideal candidate will have over 10 years of experience with larg ...

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 Open Source Data Platform Engineer

A leading data observability company in the Region of Waterloo is seeking a Senior Software Engineer with at least 7 years of experience in distributed systems. In this full-time, on-site role, you will design and develop the Open Source Data Platform while contributing to open-source technologies. The ideal can ...

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 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 ...

Software Engineer

A profitable, steadily growing AI startup in Vancouver is seeking a frontend-focused Software Engineer to build developer tools, web demos, and product interfaces. We tackle unsolved problems under real constraints. We value originality, speed, and rigor. What We’re Looking For Strong experience with React and m ...

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 Software Engineer: Distributed Systems & Cloud

A leading software company is looking for an experienced engineer for a high-impact role that involves architectural ownership. You will need strong programming skills in Go, Java, or Python and proven experience in designing and building distributed systems or microservices architectures. Knowledge of cloud pla ...

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 ...

Senior AI/ML Architect — Remote, Cloud Native Solutions

A cloud consulting firm is seeking a Senior AI/ML Engineer to architect and deploy impactful AI solutions. The role involves collaborating with clients to translate business needs into technical results, overseeing dataset quality, and leveraging the Google AI ecosystem for scalable model deployment. Ideal candi ...

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 ...

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 Software Engineer Real Time Systems (Hybrid)

A software company in Ottawa is seeking a Software Engineer to develop real-time solutions for public safety and security industries. You will work in a dynamic environment, addressing various software challenges and collaborating with team members. The role offers a hybrid work model, competitive salary range o ...

QA Automation Engineer – AEM & Salesforce, CI/CD Focus

A leading Indigenous-led software testing firm is looking for a QA Automation Engineer located in Calgary, Alberta. This role involves designing and maintaining automated testing solutions for Adobe Experience Manager and Salesforce applications within Agile teams. Candidates should have over 5 years of experien ...

Staff Product Security Architect — Remote

A financial technology company is seeking a Staff Product Security Engineer to enhance product security across development phases. The role involves collaborating with product teams, conducting threat analysis, and advising on security best practices. Ideal candidates possess deep understanding of web architectu ...

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 ...

Pre Silicon Debug & Validation Engineer GPU/Video IP

A technology solutions provider is seeking a Hardware Systems Design & Pre-Silicon Debug Engineer to drive the development and validation of innovative display and graphics technologies. The position demands strong skills in hardware architecture and pre-silicon verification. Key responsibilities include debuggi ...

AI Engineer: Build LLM Agents & MCP Integrations

A growing technology firm is seeking a software engineer with hands-on experience in building AI agents and using the Model Context Protocol (MCP). Join a team of talented engineers to enhance platforms integrating LLMs, APIs, and enterprise data. The ideal candidate has 3-5 years of development experience in C# ...

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 ...

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 ...

Remote Staff Data Engineer Architecting Health Data

Join a healthcare technology company as a Staff Data Engineer. In this remote role, you will optimize data architecture, mentor senior engineers, and solve complex data challenges. The position requires over 8 years of data engineering experience, expertise in various databases, and strong coding skills in Pytho ...

Backend Code Generation Engineer for Data Migration

A leading technology firm in Calgary is seeking a backend engineer to join its Code Generation and Data Migration team. This role involves contributing to high-quality backend code and collaborating with cross-functional teams to enhance application modernization. Candidates should have a strong background in pr ...

Senior Motion Planning Engineer AI Autonomy

An innovative AI technology company in Canada is seeking a software engineer to design and develop motion planning algorithms for self-driving technology. The ideal candidate will possess a degree in Computer Science or Robotics and at least 4 years of industry experience, with strong skills in Python or C++. Th ...

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    Lead Fullstack Engineer Python Fastapi Jobs in Canada Job Search Guide, Trends and Insights