685,636+ Lead Software Engineer Pythonreact Jobs in Canada — Top Companies Hiring June 2026

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Lead Mechanical Engineer for Mining

Become a Lead Mechanical Engineer at Cementation, specializing in high-quality engineering solutions for mining projects in North Bay or Sudbury, ON, through a flexible hybrid model. Your leadership will shape safe designs and guide technical teams.This full-time position offers you the chance to mentor juni ...

Lead Geotechnical Engineer for Dams

Join WSP in Québec as the Lead Geotechnical Engineer for Hydropower, contributing to vital infrastructure projects across Canada. Your engineering expertise will shape future sustainability through innovative designs.This senior role involves overseeing the design and safety evaluations of retaining structur ...

HVAC and Mechanical Lead Engineer

Drive innovation at SYSTRA Canada as an HVAC and Mechanical Lead Engineer for cutting-edge rail projects. Focus on delivering exceptional station designs that meet high performance standards.Reporting to the Design Manager, you will be instrumental in the multidisciplinary coordination of high-speed rail sta ...

Lead Machine Learning Engineer Unity

Transform advertising through technology as a Lead Machine Learning Engineer at Unity. Focus on financial systems, pacing algorithms, and advanced Generative AI solutions.In this pivotal role, you will leverage over 8 years of development experience to drive Unity's advertising ecosystem. Your expertise will ...

Lead Machine Learning Engineer Unity

Transform advertising through technology as a Lead Machine Learning Engineer at Unity. Focus on financial systems, pacing algorithms, and advanced Generative AI solutions.In this pivotal role, you will leverage over 8 years of development experience to drive Unity's advertising ecosystem. Your expertise will ...

Lead Data Engineer at Spellbook

Spearhead data initiatives at Spellbook as a Senior Data Engineer, specializing in AI-driven legal technologies. Your expertise will help streamline contract workflows through advanced data solutions.In this position, you will be pivotal in developing scalable infrastructure that supports analytics and produ ...

Hydropower Engineer Lead in Quebec

Lead hydropower projects at Stantec in Quebec, blending technical expertise with business development. You will manage diverse teams while driving sustainable solutions in renewable energy.As a Hydropower and Dams Lead, you will leverage your 15 years of experience in the hydro industry to enhance operations ...

Lead Geotechnical Engineer at AECOM

Join AECOM as a Senior Geotechnical Engineer to lead innovative tailings dam design and contribute to projects across Canada. This role requires extensive technical expertise and compliance with regulatory standards in tailings management.As a Senior Geotechnical Engineer with AECOM, you will lead the techni ...

Lead Data Engineer at Spellbook

Spearhead data initiatives at Spellbook as a Senior Data Engineer, specializing in AI-driven legal technologies. Your expertise will help streamline contract workflows through advanced data solutions.In this position, you will be pivotal in developing scalable infrastructure that supports analytics and produ ...

Lead Mechanical Engineer, Mining/Resources

Job Description We are Visioneers. We are WSP. The Opportunity Job DescriptionWhat if you could redefine what’s possible? With us, you can. You want Purpose. Growth. Opportunity. People w ...

Lead Data Engineer Hybrid Role

Join Assent as a Senior Data Engineer and be at the forefront of data architecture. Enjoy a hybrid work model while developing advanced data solutions for sustainable industry practices.As a Senior Data Engineer at Assent, you will spearhead critical data engineering initiatives. With a strong foundation in ...

Lead Systems Engineer – Avionics Expertise

Join a pioneering team at the forefront of avionics for hybrid eVTOL aircraft as a Senior Systems Engineer in Lindsay, Ontario. This role blends telework flexibility with high-stakes engineering tasks.We are in search of an expert with at least 7 years in avionics or systems engineering in fast-paced aerospa ...

Lead Machine Learning Engineer Unity

Transform advertising through technology as a Lead Machine Learning Engineer at Unity. Focus on financial systems, pacing algorithms, and advanced Generative AI solutions.In this pivotal role, you will leverage over 8 years of development experience to drive Unity's advertising ecosystem. Your expertise will ...

Lead Machine Learning Engineer Unity

Transform advertising through technology as a Lead Machine Learning Engineer at Unity. Focus on financial systems, pacing algorithms, and advanced Generative AI solutions.In this pivotal role, you will leverage over 8 years of development experience to drive Unity's advertising ecosystem. Your expertise will ...

Lead Data Engineer at Upshop

Advance your career with Upshop as a Lead Data Engineer focused on enhancing our Databricks Lakehouse. This role emphasizes data architecture and systems design to drive impactful retail analytics.In this crucial leadership position, you will manage the architecture and scalability of data products, deliveri ...

Lead Mechanical Engineer, Mining/Resources

Responsibilities Lead mechanical and piping engineering packages for multidisciplinary mining and industrial projects across all phases—from conceptual studies to detailed engineering and construction support. Apply deep knowledge of codes and standards (ASME B31.3, B31.4, B31.8, ...

Lead Quality Engineer at Manulife

Elevate software quality at Manulife as a Lead Quality Engineer, focusing on automated testing in a hybrid work environment. Collaborate with teams to enhance systems and ensure performance excellence.As a Lead Quality Engineer, you will design scalable test solutions and influence product quality. This role ...

Mechanical Integration Lead Engineer Quebec

Elevate your career as a Mechanical Integration Lead Engineer with a global provider in Quebec. This full-time role focuses on managing mechanical integration and drafting assembly designs.The successful candidate will oversee mechanical activities, ensuring adherence to project timelines and quality standar ...

Lead Civil Structural Engineer Calgary

Join Equinox Engineering Ltd. as a Lead Civil-Structural Engineer in Calgary, AB. This full-time role focuses on innovative oil and gas infrastructure projects while mentoring junior engineers.You will oversee the civil and structural engineering aspects of complex projects, ensuring safety and compliance. Y ...

Lead AI Engineer at Tangerine

Join Tangerine as a Senior AI Engineer, where you will influence the development of innovative AI solutions and scalable systems. This role is designed for those eager to make a meaningful impact.As a vital member of the team, you will design and implement agentic AI applications while ensuring system reliab ...

Lead DevOps Engineer for Payments

Elevate your career with Insight Global as a Lead DevOps Engineer, specializing in automated payment processing within a high-volume transaction environment. This role emphasizes the operational excellence of Camunda 8-based platforms for seamless transactions.In this pivotal position, you will take charge o ...

Lead Devops Platform Engineer mississauga

Day-to-Day Insight Global is seeking a Lead DevOps Engineer to support a distributed, high-volume transaction processing platform within Global Payments Technology function. This role is not traditional DevOps. The focus is on operating, scaling, and stabilizing Camunda 8-based workflow platforms ...

Liquid Cooling Infrastructure Lead Engineer

Join CoolIT Systems in Calgary as the Liquid Cooling Infrastructure Lead Engineer. This role involves leading designs for pioneering liquid cooling infrastructures used in supercomputing and cloud solutions.You will be responsible for the mechanical design processes of facility and data hall side liquid cool ...

Lead Mechanical Engineer in Sudbury

Take your career to the next level with Glencore as a Lead Mechanical Engineer in Sudbury, Ontario. This full-time role emphasizes engineering leadership in a dynamic operational setting.Reporting to the Superintendent of Engineering, you'll manage engineering assessments, design documentation, and construct ...

Lead Facility Engineer in Calgary

Become a key player at TAQA North as a Lead Facility Engineer in Calgary. This strategic role involves supervising the delivery of complex oil and gas infrastructure projects.As a Senior Facility Engineer, you will report directly to the Facilities Engineering Manager and manage multiple concurrent projects. ...

Lead Infrastructure Engineer at VGS

Embrace the future of payment technology as a Lead Infrastructure Engineer at VGS. This role focuses on enhancing cloud operations and site reliability in a fully remote capacity.At VGS, you will leverage your expertise in Infrastructure and Site Reliability Engineering to design and maintain scalable ...

Lead Test Engineer Coquitlam, BC

Lead Test Engineer We are looking for a Lead Test Engineer to build and lead Moment Energy’s testing and validation capabilities. This role is responsible for defining and executing the testing strategy that ensures the safety, reliability, and performance of our battery energy storage systems (BESS).A ...

Lead Engineer for Manufacturing Processes

Join Zero Point Cryogenics as an Engineering Lead, focusing on manufacturing processes and quality control. This full-time, on-site role bridges R&D and scalable production, demanding strong systems thinking.You will spearhead engineering initiatives, guiding product transitions from prototype developm ...

Lead Electrical & Instrumentation Engineer Electra

Take the next step in your career with Electra Battery Materials as a Lead Electrical and Instrumentation Engineer. Your expertise will enhance operations in a dynamic battery materials facility.In this key role, oversee teams engaged in electrical and instrumentation tasks while driving efficiency. Me ...

Lead Data & AI Platform Engineer

Shape the future of AI at Google Cloud as a Lead Platform Engineer specializing in Data and AI. Focus on architecting robust agentic platforms to drive automation and efficiency.This position requires strong expertise in building enterprise-level data and AI infrastructures with a focus on microservice ...

Lead DevOps Engineer for Payments

Elevate your career with Insight Global as a Lead DevOps Engineer, specializing in automated payment processing within a high-volume transaction environment. This role emphasizes the operational excellence of Camunda 8-based platforms for seamless transactions.In this pivotal position, you will take ch ...

Lead Electrical Engineer for Substations

Join Qualus as a Lead Electrical Engineer focused on substations in a hybrid role out of Vancouver, BC. Take charge of high-voltage project execution from design to construction while ensuring compliance and safety.This position necessitates leadership in design efforts for overhead and underground tra ...

Lead Engineer for Silicon Solutions

Become a Lead Engineer at Synopsys, where you will steer high-impact Silicon IP projects and foster innovation. Leverage your technical expertise in semiconductor design.As a Lead Engineer at Synopsys, you will oversee crucial Silicon IP projects, ensuring alignment with business goals and customer exp ...

Team Lead Electrical Engineer Role

Elevate your career as a Team Lead Electrical Engineer in Hamilton/Waterloo. Your mission will be to guide a talented team while staying engaged in hands-on technical design work.In this senior leadership position, you will lead electrical design projects and play a crucial role in team development and ...

Electrical Systems Lead Engineer Role

Join HDR's team in Calgary as a Senior Electrical Engineer, leading electrical systems design and ensuring project success through collaboration and compliance with standards.This role calls for a detailed-oriented Senior Electrical Engineer who can navigate the complexities of electrical design for va ...

Lead Electrical Engineer in Windsor

Join Tandem Group Consulting Solutions as a Lead Electrical Engineer in Windsor, ON. This full-time position focuses on electrical system design, project management, and client interaction.As a Senior Electrical Engineer, you’ll leverage over 8 years of experience to lead technical design and developme ...

Lead Systems Engineer for Chromatography

Join the innovative team at PerkinElmer as a Lead Systems Engineer specializing in chromatography in Woodbridge, Canada. Your role will involve developing and integrating cutting-edge chromatography systems for scientific applications.PerkinElmer seeks an experienced professional with a Master’s or Ph. ...

Lead Azure Cloud Engineer Position

Become a leader in cloud engineering as an Azure Cloud Engineer based in Leeds. Focus on enhancing our Azure environment's governance and operational functionality while implementing best practices.In this role within our Information Technology department, you will devise and oversee the design of a sc ...

Lead Automation Engineer at Enginuity

Elevate your engineering career as a Lead Automation Engineer with Enginuity in Spryfield. Focus on developing advanced automation solutions in marine, food processing, and defense environments.As a Senior Automation Engineer at Enginuity, you will report to the Automation and Robotics Manager while le ...

Lead Facility Engineer in Calgary

Become a key player at TAQA North as a Lead Facility Engineer in Calgary. This strategic role involves supervising the delivery of complex oil and gas infrastructure projects.As a Senior Facility Engineer, you will report directly to the Facilities Engineering Manager and manage multiple concurrent pro ...

DevOps Engineer Lead at RBC

Join the RBC team as a Lead DevOps Engineer, where innovation meets application development in a hybrid setting based in Toronto. Spearhead CI/CD pipeline design while ensuring best practices are followed for robust software delivery.This 5-month contract role is ideal for a seasoned professional eager ...

Instrumentation & Controls Lead Engineer Nuclear

Join Black & Veatch as a Lead Instrumentation & Controls Engineer in Markham, ON. Drive design and project coordination for cutting-edge Nuclear Power Generation systems.In this pivotal role, you will lead the instrumentation team in creating engineering documentation and managing design tasks associat ...

Lead Structural Engineer Windsor, Ontario

Become a Structural Engineering Design Lead at Tandem Group in Windsor, Ontario. Your expertise will guide projects from concept through completion across various sectors including automotive and industrial.As a full-time Structural Engineering Design Lead, you'll work directly under the Structural Eng ...

Lead Cloud DevSec Ops Engineer

Job Title: Lead Cloud DevSec Ops Engineer Key Technology: DevOps, Python, PowerShell, Rego, Azure, GCP Job Responsibilities: Ensure that all cloud solutions follow internally defined security and compliance controls. Implement the ...

Liquid Cooling Infrastructure Lead Engineer

Join CoolIT Systems in Calgary as the Liquid Cooling Infrastructure Lead Engineer. This role involves leading designs for pioneering liquid cooling infrastructures used in supercomputing and cloud solutions.You will be responsible for the mechanical design processes of facility and data hall side liqui ...

Lead Automation Safety Engineer BBA

Join BBA as a Lead Automation Safety Engineer, where you will manage critical safety aspects of automated systems. Your role includes risk analysis and ensuring compliance with industrial safety standards.As a senior engineer, you will be responsible for overseeing various stages of machine safety proj ...

Lead AI Engineer at Questrade

Elevate your career as a Lead AI Engineer at Questrade Financial Group. This hybrid role centers on driving AI development while ensuring compliance and security across AI initiatives.Questrade is seeking a Principal AI Engineer who will define the technical direction for complex AI projects, mentor en ...

Carbody Shell Manufacturing Lead Engineer

Join Alstom as a Lead Process Engineer specializing in carbody shell production. Leverage your manufacturing and process engineering skills in a collaborative environment.In this critical engineering role, you will optimize manufacturing processes and equipment while collaborating with teams across Eng ...

Lead Water Resources Engineer WSP

Join WSP as a Senior Water Resources Engineer specializing in mine water projects across Alberta and British Columbia. Utilize your leadership skills and technical expertise to drive impactful solutions.WSP seeks a Senior Water Resources Engineer to oversee innovative surface and mine water initiatives ...

Lead Process Engineer (Carbody shell)

At Alstom, we understand transport networks and what moves people. From high-speed trains, metros, monorails, and trams, to turnkey systems, services, infrastructure, signalling and digital mobility, we offer our diverse customers the broadest portfolio in the industry. Every day, 80,000 colleagues lead the way ...

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