163,077+ Lead Software Engineer Pythonreact Jobs in Toronto, Canada — Local Employers Hiring June 2026

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Senior Frontend Engineer — Scalable AI First

A leading remote event platform company is seeking an experienced engineer to enhance front-end architecture for a global system. This role involves building high-performance web applications, mentoring others, and embracing AI technologies. Strong skills in architectural thinking and software development are es ...

Mid Senior Core DB Engineer (C/C++)

A leading data infrastructure company seeks a Senior Software Engineer to join its Toronto team. The role involves designing core database components, optimizing performance, and ensuring data reliability. Candidates should have strong experience in systems programming (C/C++) and a deep understanding of databas ...

Senior Java & Data Platform Engineer on Azure Markets

A technology firm in Toronto is seeking a Senior Software Engineer specializing in Java and data platforms. The role involves designing large-scale data systems on Azure, optimizing SQL queries, and building data pipelines for advanced analytics. Candidates should have strong expertise in Azure SQL and data mode ...

Senior AI Compiler Engineer: MLIR & Open Source

A leading AI technology company in Toronto is seeking a passionate software engineer focused on AI compiler technologies. You'll contribute to TT-Forge, our innovative open-source compiler, optimizing for cutting-edge AI performance. The role is hybrid, accommodating different experience levels, and offers a com ...

Structural Engineer (Intermediate) – Steel Design & Projects

A global multi-disciplinary engineering firm is seeking an Intermediate Structural Engineer in Toronto. The successful candidate will perform engineering calculations, produce reports, and manage design projects. Candidates should have a Bachelor's degree in Civil or Structural Engineering, 7+ years of Structura ...

QA Automation Engineer Hybrid | Contract to Hire, Toronto

A leading global technology firm in Toronto is seeking an experienced QA Engineer specializing in automation testing to oversee quality assurance initiatives across large-scale retail applications. In this hybrid contract-to-hire role, you will collaborate with cross-functional teams, implement scalable framewor ...

Principal Go Engineer — Dev Productivity & CI/CD Architect

A leading tech company is seeking a Principal-level engineer to enhance the productivity ecosystem for their Workflows Engineering organization. The ideal candidate has over 10 years of software engineering experience, expertise with CI/CD, and a strong understanding of cloud technologies. This role involves col ...

Senior Backend & DevOps Engineer – Data Powered SaaS

A leading retail analytics company in Toronto is seeking a highly motivated Senior Backend Engineer. This hybrid role involves both Backend Development and DevOps duties, aiming to enhance the company's analytics platform. The ideal candidate holds a degree and has over 5 years of relevant experience in software ...

Senior ML Evaluation Engineer

A leading software company is seeking a Principal Machine Learning Engineer to design evaluation protocols for ML-powered product experiences, ensuring high standards of quality and reliability. The successful candidate will have over 4 years of experience in ML evaluation or applied engineering and strong progr ...

Senior Backend Systems Engineer (Hybrid) RealTime Platform

A tech startup in Toronto is seeking a Senior Software Engineer to design and maintain backend systems. This hybrid role emphasizes backend reliability and supports entrepreneurship through cutting-edge technology. The ideal candidate has expertise in Node.js, TypeScript, and relational databases, with the chanc ...

Founding AI Engineer: GenAI & Voice Systems

A pioneering technology firm in Toronto is looking for a founding engineer to shape the product stack and technical direction. Ideal candidates will have over 5 years of full stack software engineering experience, particularly with ML/AI products. Responsibilities include deploying advanced AI models and enhanci ...

Finance Planning Tech Lead: Hyperion, FDMEE & Essbase

A leading banking institution in Toronto is seeking a skilled Software Engineer to develop and support finance planning applications. The ideal candidate has over 5 years of experience with Essbase and Hyperion Planning, as well as strong skills in Python and Oracle DB. This organization values an inclusive cult ...

Underground Mining Engineer: Diverse Projects, Equity

An independent international consulting firm is seeking an Underground Mining Engineer Consultant in Toronto or Sudbury, ON. The role involves providing expert technical support on various mining projects while developing a client network. Candidates should have a degree in mining engineering and up to 5 years o ...

Guidewire BillingCenter QA Engineer — Test Automation & API

A software solutions company is hiring a Quality Engineer specializing in Guidewire BillingCenter to support Insurance Suite implementations. The role includes responsibilities in test planning, automation, and defect management. Ideal candidates should have strong skills in Core Java and API testing, with famil ...

Senior ML Infra Engineer — Low Latency, Scalable Systems

A technology company in Toronto is seeking a Software Engineer to join their team, focusing on building scalable, high throughput systems using Scala. Ideal candidates will have over 8 years of experience, strong AWS knowledge, and the ability to redesign features for efficiency. Responsibilities include collabo ...

Senior Android Engineer, Global Impact (Hybrid)

A leading restaurant technology firm is seeking a Senior Software Engineer to develop features that power restaurant operations. This role involves designing and maintaining scalable Android applications using Kotlin, collaborating with various teams, and contributing to backend services. The ideal candidate wil ...

DevOps Engineer Infra Automation & CI/CD Pro

A leading transportation company is looking for a full-time DevOps Engineer in Toronto, ON. You will help modernize and automate the infrastructure, working on Infrastructure as Code and CI/CD while collaborating with various stakeholders. The ideal candidate has a degree in Software Engineering or equivalent ex ...

Remote Cloud Python Engineer for Ubuntu Images

A leading open-source technology provider is seeking a Software Engineer based in Toronto. In this role, you will develop and enhance Ubuntu on public cloud platforms, ensuring high quality and stability. The ideal candidate should have strong Python skills, experience in Linux systems administration, and the ab ...

Senior Front Office Pricing & Risk Engineer

A leading financial services firm in Toronto is seeking a Senior Level Engineer to develop core pricing and risk services. The ideal candidate will have over 8 years of experience in software engineering with strong skills in Java and Python. Responsibilities include collaborating with sales and trading teams an ...

Senior Platform Engineer: Control Plane & Developer Tools

A leading identity management company in Toronto is seeking a Senior Engineer to design and develop robust orchestration systems and APIs. The ideal candidate will have over 5 years of software development experience, particularly in Golang, and a solid understanding of cloud resources management on AWS or Azure ...

Solution Engineer (Pre Sales): Design, Demos & Impact

A leading cloud software company in Toronto is seeking a Solution Engineer to partner with clients and internal teams. The role involves designing and demonstrating technology solutions that meet customer business objectives. Candidates should hold a B.S. in Computer Science or similar and possess strong communi ...

Nearshore DevOps Engineer: AWS, Docker & CI/CD Expert

A global software services provider seeks a skilled DevOps Engineer to support operations from Canada. The ideal candidate has over 5 years of experience with AWS services, and deep knowledge of Docker and cloud security practices. Responsibilities include building better services in collaboration with Developme ...

Senior Fullstack Engineer Growth Platforms (Remote)

A leading fintech company in Toronto is seeking a Software Engineer with significant experience in mobile app development, particularly with React Native. The role involves owning quarterly goals, collaborating throughout the product lifecycle, and proactively identifying issues. The ideal candidate has over 4 y ...

Frontend Engineer, New Products — Hybrid (SF)

A leading vertical SaaS company is seeking a Software Engineer for its New Products team in Toronto. This hybrid role involves building impactful technology to assist personal injury lawyers, aiming to improve client outcomes. Candidates should have 5-10 years of engineering experience, preferably with technolog ...

Senior Full Stack Engineer — AWS Cloud & React

A leading ecommerce platform in Toronto seeks a MTS 1 Full Stack Engineer to design and build scalable cloud-native software. The ideal candidate has strong experience with Python, Javascript, and AWS services such as Lambda and SQS. You’ll collaborate with diverse teams to ensure high-quality, consumer-facing s ...

Principal Highways Engineer Hybrid Leadership & Design

A leading engineering consulting firm in Toronto is seeking a Principal Design Engineer - Highways to join their team. This mid-senior level position involves undertaking complex highway design projects, managing client relationships, and mentoring junior staff. The ideal candidate will have technical independen ...

Mobile Apps Engineer (iOS & Android)

A major financial institution is seeking a Software Engineer specializing in Mobile Applications to create innovative solutions for both iOS and Android. This role emphasizes collaboration and problem-solving in a dynamic environment. Ideal candidates will have a bachelor's degree in computer science and experie ...

Senior Frontend Engineer Live Shopping Platform (Remote)

A leading e-commerce platform is seeking a Frontend Software Engineer to join their team, focusing on developing the eBay Live shopping platform. The ideal candidate will have extensive experience in programming, strong decision-making skills, and a background in collaborating with cross-functional teams. This r ...

Senior Backend Engineer AI Platform, Distributed Systems

A leading AI technology company is seeking a Senior Backend Software Engineer to design and implement scalable backend services and infrastructure for an AI platform. Responsibilities include developing robust APIs, optimizing performance, and collaborating with frontend and ML teams. Ideal candidates will have ...

AI Platform Backend Engineer & Leader

A global staffing and consulting firm is seeking a Backend Software Engineer to develop and maintain backend services and APIs for an AI platform. Candidates should have at least 2 years of backend engineering experience, proficiency in languages like Python or Java, and familiarity with cloud infrastructure. Th ...

Staff Frontend Engineer: Availability & Experiences Remote

A leading technology company is seeking a Staff Frontend Engineer in Toronto to take deep technical ownership of their Availability Planning system. The role demands expertise in JavaScript and React, with responsibilities including system design and high-quality code execution. Candidates should have over 7 yea ...

Toronto Hybrid Senior Full Stack Engineer (React/Node)

A technology solutions provider is seeking a Senior Full Stack Engineer in Toronto. The ideal candidate will have over 5 years of experience in software development, with strong expertise in both frontend (Angular or React.js) and backend (Node.js). Responsibilities include designing and building application sol ...

Mining Engineer: Design, Planning & Feasibility

An environmental consulting firm is seeking a Mining Engineer in Toronto to manage mine operations, design projects, and support business development. The ideal candidate will have a degree in mining engineering, expertise in mine planning software, and at least five years of experience in operating mines. This ...

Live Commerce Mobile Engineer – Real Time Shopping Apps

A global online marketplace is seeking a Mobile Software Engineer to develop mobile experiences for live commerce. This role involves designing, developing, and optimizing applications that allow users to engage in real‑time shopping. Candidates should have a degree in Computer Science or a related field, strong ...

Staff Engineer, Core Platform: SOA/EDA Architect (Rails)

A tech company in Toronto is seeking a Staff Engineer (E5) to define the architectural future of its Core Platform. This role focuses on mentoring engineers and implementing scalable service architectures using SOA and event-driven designs. Ideal candidates should have over 8 years of experience in software engi ...

Senior AI Backend Engineer for Scalable Python APIs

A leading technology company in Toronto is seeking a Senior Software Engineer to design and implement backend services for AI-native products. The ideal candidate has over 4 years of experience, strong skills in Python, FastAPI, and PostgreSQL. Responsibilities include building scalable APIs, collaborating with ...

Senior Backend Architect Payments Platform

A global leader in interactive entertainment is seeking a Principal Software Engineer for core technology in Toronto. The role involves designing backend applications in AWS, optimizing existing services, and collaborating with teams to drive innovation in gaming experiences. Candidates should have a degree in C ...

Full Stack Intern: Build AI Driven Platform & Studio

A pioneering AI company in Toronto seeks a full-stack software engineer to enhance its innovative platform products. The role combines front-end and back-end development, focusing on machine learning and artificial intelligence applications. Suitable candidates should have experience with modern frameworks like ...

Nearshore DevOps Engineer: AWS, Docker & CI/CD Expert

A global software services provider seeks a skilled DevOps Engineer to support operations from Canada. The ideal candidate has over 5 years of experience with AWS services, and deep knowledge of Docker and cloud security practices. Responsibilities include building better services in collaboration with Developme ...

Senior AI Compiler Engineer: MLIR & Open Source

A leading AI technology company in Toronto is seeking a passionate software engineer focused on AI compiler technologies. You'll contribute to TT-Forge, our innovative open-source compiler, optimizing for cutting-edge AI performance. The role is hybrid, accommodating different experience levels, and offers a com ...

Senior React UI Engineer — Design Systems & Libraries

A leading technology consulting firm seeks a Senior UI Engineer to design and develop scalable UI component libraries using React. This role involves collaborating with UX designers and mentoring junior engineers. The ideal candidate has 7-10 years of software development experience, particularly with design sys ...

Toronto Hybrid Senior Full Stack Engineer (React/Node)

A technology solutions provider is seeking a Senior Full Stack Engineer in Toronto. The ideal candidate will have over 5 years of experience in software development, with strong expertise in both frontend (Angular or React.js) and backend (Node.js). Responsibilities include designing and building application sol ...

Site Reliability Engineer @Toronto, ON

- Site Reliability Engineer @Toronto, ON (Toronto, ON, M5A 3N7), Canada 8 - 20 Years Job DescriptionSkills and ResponsibilitiesOwner of the Production Environment: Has independent veto power on changes. Is business aligned and understands business outcomes. Experience owning change manageme ...

Senior Backend & DevOps Engineer – Data Powered SaaS

A leading retail analytics company in Toronto is seeking a highly motivated Senior Backend Engineer. This hybrid role involves both Backend Development and DevOps duties, aiming to enhance the company's analytics platform. The ideal candidate holds a degree and has over 5 years of relevant experience in software ...

Android Engineer, Ad Formats — Build High Impact Ads

A leading social media platform is seeking a skilled Android Engineer to join their New Ad Formats team. The role involves building ad experiences for the Android app, enhancing ad functionality and performance through innovative solutions. The ideal candidate has a strong background in Android engineering and i ...

Principal Go Engineer — Dev Productivity & CI/CD Architect

A leading tech company is seeking a Principal-level engineer to enhance the productivity ecosystem for their Workflows Engineering organization. The ideal candidate has over 10 years of software engineering experience, expertise with CI/CD, and a strong understanding of cloud technologies. This role involves col ...

QA Automation Engineer Hybrid | Contract to Hire, Toronto

A leading global technology firm in Toronto is seeking an experienced QA Engineer specializing in automation testing to oversee quality assurance initiatives across large-scale retail applications. In this hybrid contract-to-hire role, you will collaborate with cross-functional teams, implement scalable framewor ...

Structural Engineer (Intermediate) – Steel Design & Projects

A global multi-disciplinary engineering firm is seeking an Intermediate Structural Engineer in Toronto. The successful candidate will perform engineering calculations, produce reports, and manage design projects. Candidates should have a Bachelor's degree in Civil or Structural Engineering, 7+ years of Structura ...

Senior Java & Data Platform Engineer on Azure Markets

A technology firm in Toronto is seeking a Senior Software Engineer specializing in Java and data platforms. The role involves designing large-scale data systems on Azure, optimizing SQL queries, and building data pipelines for advanced analytics. Candidates should have strong expertise in Azure SQL and data mode ...

Senior Backend Engineer AI Platform, Distributed Systems

A leading AI technology company is seeking a Senior Backend Software Engineer to design and implement scalable backend services and infrastructure for an AI platform. Responsibilities include developing robust APIs, optimizing performance, and collaborating with frontend and ML teams. Ideal candidates will have ...

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    Lead Software Engineer Pythonreact Jobs in Toronto Job Search Guide, Trends and Insights