165,169+ Lead Software Engineer Pythonreact Jobs in Toronto, Canada — Local Employers Hiring June 2026

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Product Engineering Internship Dayforce

Step into the future of technology with Dayforce as a Product Engineer Intern in Toronto. This hybrid internship emphasizes AI-driven software development and large data visualization.In this role, you will work on optimizing solutions for complex data processing while collaborating globally. You’ll ga ...

Senior Engineer in Home Care Tech

Drive change in home care as a Senior Software Engineer. Architect scalable systems that enhance caregiver engagement and operational efficiency using cutting-edge technology.You'll join a talented team focused on solving the urgent caregiver crisis while shaping product and engineering standards. Your exper ...

Senior Engineer in Home Care Tech

Drive change in home care as a Senior Software Engineer. Architect scalable systems that enhance caregiver engagement and operational efficiency using cutting-edge technology.You'll join a talented team focused on solving the urgent caregiver crisis while shaping product and engineering standards. Your exper ...

Waabi Senior Engineer in AI Development

Join Waabi as a Senior Software Engineer and lead the transformation of transportation using AI. Collaborate with engineers and researchers to create efficient solutions for autonomous vehicles.Waabi is at the forefront of Physical AI, seeking engineers dedicated to scalable self-driving technology. In this ...

Machine Learning Architecture Leader

Lead transformative AI initiatives as a Principal Machine Learning Engineer with a global networking powerhouse. Drive innovation in Generative AI, AI Agents, and complex model architectures.In this pivotal role, you will define the ML strategy, architect systems for real-time learning, and mentor engineerin ...

Principal Engineer for Fintech Solutions

Elevate technology solutions at Synpulse as a Principal Engineer specializing in fintech. This hybrid role entails designing client-focused software solutions while addressing technical inquiries.In this leadership position, you will utilize over 10 years of experience in technology project delivery to creat ...

Senior QA Engineer in Toronto

Advance your career with NetBrain as a Senior QA Engineer located in Toronto, ON, focusing on network automation. Lead projects while working alongside a collaborative team of professionals.In this senior role at NetBrain, you will oversee junior QA engineers and create comprehensive test plans. Your experti ...

Senior SRE Lead: Multi Cloud Reliability Architect

A technology company based in Toronto seeks a Lead Site Reliability Engineer to oversee the design and evolution of their multi-cloud content serving platform. The role demands a proven track record in site reliability or software engineering with a focus on scalable, resilient systems. The ideal candidate will ...

Principal Fintech Architect – Global Payments Leader

A leading talent solutions firm is seeking a Principal Software Engineer to lead the design and development of critical financial platforms in Toronto. You will architect scalable systems that power global payments, trading, and digital banking services. The ideal candidate has over 10 years of experience, deep ...

Senior Full Stack AI Engineer for Secure SaaS

A fast-growing AI solutions firm seeks a Senior Full-Stack Engineer to develop secure SaaS applications that leverage generative AI capabilities. The ideal candidate will lead development initiatives, manage backend architecture, and integrate AI technologies. This role offers dynamic challenges and the chance t ...

ML Systems Debugging & Tooling Engineer

A leading technology company in AI, located in Toronto, is seeking a skilled engineer to lead system-level debugging and validation efforts. The ideal candidate has strong proficiency in C++ and Python, with a proven track record in diagnosing complex hardware/software systems. You will be responsible for develo ...

Senior Rust Backend Engineer — AI Driven, Scalable Systems

A media streaming company is seeking a Senior Software Engineer specializing in Rust to lead the development of their backend platform. The role involves architecting high-performance systems, collaborating closely with various teams, and mentoring other engineers. Ideal candidates will have over four years of b ...

Senior Data & ML Engineer: Drive scalable AI for ecommerce

A global ecommerce leader is seeking an experienced Sr Data & ML Engineer to lead technical initiatives within a high-impact team in Toronto. This role involves driving architectural decisions, developing solutions to business problems, and ensuring engineering excellence. Candidates should possess a B.Sc. or M. ...

Senior Data & ML Engineer: Drive scalable AI for ecommerce

A global ecommerce leader is seeking an experienced Sr Data & ML Engineer to lead technical initiatives within a high-impact team in Toronto. This role involves driving architectural decisions, developing solutions to business problems, and ensuring engineering excellence. Candidates should possess a B.Sc. or M. ...

Senior Backend Architect Remote, Scale Global Lifecycle

A leading fintech company is seeking a Backend Software Engineer to design and scale their platform. You will lead cross-team projects, mentor engineers, and drive technical strategies. Ideal candidates have 5+ years of experience, a strong grasp of system architecture, and proficiency in languages like Kotlin a ...

Principal Fintech Architect – Global Payments Leader

A leading talent solutions firm is seeking a Principal Software Engineer to lead the design and development of critical financial platforms in Toronto. You will architect scalable systems that power global payments, trading, and digital banking services. The ideal candidate has over 10 years of experience, deep ...

Senior Rust Backend Engineer — AI Driven, Scalable Systems

A media streaming company is seeking a Senior Software Engineer specializing in Rust to lead the development of their backend platform. The role involves architecting high-performance systems, collaborating closely with various teams, and mentoring other engineers. Ideal candidates will have over four years of b ...

Senior Full Stack AI Engineer for Secure SaaS

A fast-growing AI solutions firm seeks a Senior Full-Stack Engineer to develop secure SaaS applications that leverage generative AI capabilities. The ideal candidate will lead development initiatives, manage backend architecture, and integrate AI technologies. This role offers dynamic challenges and the chance t ...

Senior SRE Lead: Multi Cloud Reliability Architect

A technology company based in Toronto seeks a Lead Site Reliability Engineer to oversee the design and evolution of their multi-cloud content serving platform. The role demands a proven track record in site reliability or software engineering with a focus on scalable, resilient systems. The ideal candidate will ...

ML Systems Debugging & Tooling Engineer

A leading technology company in AI, located in Toronto, is seeking a skilled engineer to lead system-level debugging and validation efforts. The ideal candidate has strong proficiency in C++ and Python, with a proven track record in diagnosing complex hardware/software systems. You will be responsible for develo ...

Senior SRE Lead: Multi Cloud Reliability Architect

A technology company based in Toronto seeks a Lead Site Reliability Engineer to oversee the design and evolution of their multi-cloud content serving platform. The role demands a proven track record in site reliability or software engineering with a focus on scalable, resilient systems. The ideal candidate will ...

Senior Full Stack AI Engineer for Secure SaaS

A fast-growing AI solutions firm seeks a Senior Full-Stack Engineer to develop secure SaaS applications that leverage generative AI capabilities. The ideal candidate will lead development initiatives, manage backend architecture, and integrate AI technologies. This role offers dynamic challenges and the chance t ...

Senior Rust Backend Engineer — AI Driven, Scalable Systems

A media streaming company is seeking a Senior Software Engineer specializing in Rust to lead the development of their backend platform. The role involves architecting high-performance systems, collaborating closely with various teams, and mentoring other engineers. Ideal candidates will have over four years of b ...

Senior SRE Lead: Multi Cloud Reliability Architect

A technology company based in Toronto seeks a Lead Site Reliability Engineer to oversee the design and evolution of their multi-cloud content serving platform. The role demands a proven track record in site reliability or software engineering with a focus on scalable, resilient systems. The ideal candidate will ...

Senior Rust Backend Engineer — AI Driven, Scalable Systems

A media streaming company is seeking a Senior Software Engineer specializing in Rust to lead the development of their backend platform. The role involves architecting high-performance systems, collaborating closely with various teams, and mentoring other engineers. Ideal candidates will have over four years of b ...

Senior Full Stack AI Engineer for Secure SaaS

A fast-growing AI solutions firm seeks a Senior Full-Stack Engineer to develop secure SaaS applications that leverage generative AI capabilities. The ideal candidate will lead development initiatives, manage backend architecture, and integrate AI technologies. This role offers dynamic challenges and the chance t ...

Senior Site Reliability Engineer (SRE)

A Few Notes: ProfitableB2B SaaS company, teams are based out of North AmericaRole is 95% remote in Toronto (we meetup 1x a month).Must be able to legally work in Canada (visa or sponsorship won't be provided)Our Platform is growing and we are looking to hire a Senior Site ...

Senior Distributed Systems Engineer at Movable Ink

Lead transformational changes in AI at Movable Ink as a Senior Distributed Systems Engineer. Enhance a core recommendations engine that informs marketing strategies for leading global brands.This key role involves architecting a scalable, distributed system that optimizes AI decision-making processes. You wi ...

Toronto Intermediate Civil Engineer Role

Elevate your career with Arcadis as an Intermediate Civil Engineer in Toronto, specializing in transportation projects. Leverage your design expertise in municipal roads, LRT/BRT, and traffic operations to influence urban development.As an integral part of the Mobility Global Business Area, you will help tac ...

Quality Assurance Engineer in Agile Setting

Become a key player as a Senior Quality Engineer focused on delivering low-defect applications in an agile environment. Collaborate closely with cross-functional teams.In this role, the Senior Quality Engineer will engage extensively with Project Managers, Analysts, and Software Developers. You will analyze ...

Toronto Senior Process Engineer Role

DRA Global Limited seeks a Senior Process Engineer for its Toronto office, focused on mining, minerals, and metals projects. This hybrid role encompasses process design and engineering support across varied assignments.As a key member of the team, your responsibilities will include leading a process design t ...

Senior Electrical Engineer Traffic Systems

Advance your career with Egis as a Senior Electrical Engineer focusing on traffic systems. Ensure excellence in the design and implementation of vital traffic signaling projects.Egis is on the lookout for a Senior Electrical Engineer to lead traffic signal and lighting system projects. This role requires com ...

Senior Backend Engineer at Varicent

Become a Senior Backend Engineer at Varicent, focusing on building scalable systems and driving technical standards across the product. This role emphasizes engineering leadership and mentorship.In this role, you will leverage your extensive experience to create and deliver backend services that are reliable ...

Playwright Automation Engineer at TCS

Join Tata Consultancy Services as a Playwright Automation Engineer, focusing on modern web application testing. Utilize strong communication skills and automation expertise to enhance banking application quality.As an Automation Engineer at TCS, you will leverage your experience with Playwright automation an ...

Senior Principal Engineer at HDR

Elevate engineering practices with HDR as a Senior Principal Engineer in Toronto, Ontario. Lead complex projects, mentor talent, and spearhead technical excellence across the organization.As a Senior Principal Engineer at HDR, you'll tackle intricate engineering challenges and provide invaluable guidance on ...

Engineering Role in Refrigeration Projects

Exciting position for an Industrial Refrigeration Engineer focusing on engineering and design. Work remotely, collaborating to provide exceptional refrigeration solutions and support project management.As an Industrial Refrigeration Engineer, you will ensure technical support is delivered efficiently across ...

Highway Engineering Expert Needed

Become a Highway Design Engineer focused on MTO projects in Ontario. This role requires technical design expertise and the mentoring of emerging professionals within our team.As a Highway Design Engineer, your responsibilities will include executing highway designs and supporting junior staff to achieve succ ...

Senior Engineer for Stormwater Solutions

Elevate community resilience as a Senior Engineer specializing in Stormwater Solutions with WSP in the Greater Toronto Area. Lead essential projects integrating water resources management with community infrastructure.In this senior engineering role, you'll guide water resources initiatives that bolster comm ...

Toronto Network Engineer TCS Hiring Now

Join Tata Consultancy Services in Toronto, Ontario, as a Network Engineer. This role emphasizes hands-on networking experience, focusing on emerging technologies and campus datacenter infrastructures.As a Network Engineer at TCS, you will engage with network firewalls, routers, and a variety of protocols suc ...

System Engineer Role at Geek+

Embark on a rewarding career as a System Engineer at Geek+, specializing in AI logistics solutions. Work directly with clients to address their operational challenges effectively.At Geek+, we are looking for a System Engineer to lead interactions with our diverse clientele. You'll utilize your technical skil ...

GFT Senior Water Engineer Opportunity

Transform water management as a Senior Pipeline Engineer/Project Manager with GFT in Toronto, Mississauga, or Ottawa. This hybrid role will challenge you to lead innovative water and wastewater projects.As a Senior Engineer, you will drive the planning and execution of complex water infrastructure projects. ...

Senior Engineer for Microservices Platform

Join IBM as a Senior Engineer, specializing in microservices and backend systems in Markham, Toronto. This role emphasizes system design, operational excellence, and mentoring.As a Senior Software Engineer II, you'll lead backend system implementations, ensuring reliability and performance within a complex c ...

Senior Backend Engineer for Data & AI

Contribute to Kaseya Limited's innovative team as a Senior Backend Engineer in Toronto, focusing on SaaS solutions powered by data and AI technologies.As a Senior Engineer, you will take ownership of backend system architecture and lead the development of APIs integrated with machine learning capabilities. T ...

Toronto Distinguished Engineer at Capital One

Join Capital One in Toronto as a Distinguished Engineer and redefine banking technology in the cloud. This role demands hands-on expertise and innovative thinking.As a Distinguished Engineer, you will partake in shaping a bold technical vision, working with seasoned developers and technology experts. You wil ...

Azure SaaS Engineer at TD Bank

Elevate your career as an Azure SaaS Engineer with Toronto-Dominion Bank in Toronto, Ontario, combining cloud integration and production support in a hybrid work model.In this full-time Software Engineer II role, you will be responsible for the enterprise management of legal technology platforms. Key respons ...

Senior AI Engineer for Financial Modeling

Lead the development of groundbreaking AI in financial modeling as a Senior Engineer. Engage with Generative AI to transform how insurers manage complex actuarial challenges.As a Senior AI Engineer, you will spearhead the design and implementation of GenAI agents that drive efficiency within the PathWise pla ...

Pipeline Engineer/Project Manager at GFT

Elevate your career at GFT by becoming a Pipeline Engineer/Project Manager with our Water team in Ontario. This hybrid role allows for collaboration in Toronto, Mississauga, or Ottawa.GFT seeks a proactive Water/Wastewater Pipeline Engineer/Project Manager to lead sustainable water infrastructure initiatives ...

Geotechnical Engineering Senior Role at KCB

Elevate your career in geotechnical engineering as a Senior Engineer at KCB in Fredericton, N.B. Specialize in tailings and dam designs while leading project teams and mentoring peers.As part of KCB's multidisciplinary team, the Senior Geotechnical Engineer will apply their expertise to major mining projects ...

Engineering Role in Refrigeration Projects

Exciting position for an Industrial Refrigeration Engineer focusing on engineering and design. Work remotely, collaborating to provide exceptional refrigeration solutions and support project management.As an Industrial Refrigeration Engineer, you will ensure technical support is delivered efficiently across ...

Staff Engineer Autonomous AI Systems at Cognichip

Join Cognichip as a Staff Engineer focusing on autonomous agentic AI systems. Drive the design and production of advanced, reliable AI workflows that push boundaries.Cognichip is searching for a Staff Agentic AI Engineer to lead architectural development and production deployment of agentic AI solutions. You ...

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