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

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Lead Site Reliability Engineer Access

Lead Site Reliability Engineer - Access page is loaded## Lead Site Reliability Engineer - Accesslocations: Torontotime type: Full timeposted on: Posted Yesterdayjob requisition id: R- **WHAT MAKES US, US**Join some of the most innovative thinkers in FinTech as we lead the evolution of financial technolog ...

ADMS Lead Engineer Systems & Integrations

A leading engineering firm located in Toronto, Ontario is seeking an experienced ADMS Lead. The ideal candidate will have 10-15 years of experience in ADMS or OMS implementations, knowledge of major vendors, and strong problem-solving skills. Responsibilities include ensuring system integrity, collaborating with ...

Water Building Mechanical Lead Engineer

A leading engineering firm located in Ontario seeks a Team Lead - Building Mechanical Engineers specializing in HVAC and plumbing systems. This role involves managing a team, ensuring technical excellence in project delivery, and requires strong leadership and design skills. Ideal candidates will have a Bachelor ...

Lead Engineer, Boiler House Operations

Drive operational excellence as Lead Engineer, Boiler House. Manage the safe and compliant operation of boiler systems, focusing on maintenance, training, and efficiency improvements.This position requires strong leadership and technical skills to ensure all boiler equipment operates safely and effectively. ...

Sanofi Lead Machine Learning Engineer

Shape the future of healthcare as Sanofi's Lead Engineer specializing in Machine Learning Applications. Design scalable AI systems that streamline clinical product development and enhance patient outcomes.As a key member of the Data Engineering Management group, you will focus on developing robust ML solutio ...

Lead Power Systems Commissioning Engineer

A leading engineering firm in Ontario seeks a highly motivated Lead Commissioning Engineer to join its team. You will lead testing and commissioning teams, ensure safety compliance, and manage technical issues in diverse electrical projects. The position requires a Bachelor's degree or equivalent, with a minimum ...

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 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 ...

Lead Generation Engineer at Forma.ai

Become a Lead Generation Engineer at Forma.ai and shape the future of sales intelligence. Focus on creating automated systems to enhance outbound marketing strategies.Forma.ai is looking for a driven Lead Generation Engineer who excels in systems architecture and automation. Your role will be instrumental in ...

Lead Electrical Engineer – Airport & Infrastructure

A leading engineering company in Toronto is seeking an Electrical Engineer to lead the design and implementation of electrical systems for airport projects and other infrastructure. The ideal candidate will have a Bachelor's degree in Electrical Engineering, a P.Eng. designation, and 4+ years of relevant experie ...

Front End Engineer Tech Lead

illumin is a leading technology company that provides marketers with a one‑stop solution for omnichannel digital advertising with best‑of‑category return on advertising spend. Our journey automation technology, illumin™, offers planning, buying, and real‑time intelligence from one platform. W ...

Lead Mechanical Engineer, Mining/Resources

Lead Mechanical Engineer, Mining/Resources Job Description The Opportunity Shape the World Around You – As a Lead Mechanical Engineer , you will lead the delivery of complex mechanical and piping engineering for mining and industrial projects across Canada. From early c ...

Lead Embedded Firmware Engineer Contractor

About Very Very is a fully distributed technology firm led by expert problem-solvers who create efficient, scalable solutions that move commercial, industrial, and consumer products from pilot to production in record time. We believe that real innovation happens in the grind — working sho ...

Lead Engineer Carbon Health Platform

Shape the future of healthcare technology as a Lead Engineer at Carbon Health. Your expertise will focus on building resilient backend architectures that drive innovation in patient care.In this pivotal role, you will lead technical efforts, mentor fellow engineers, and champion best practices in software de ...

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 Systems Engineer Transit Requirements

Shape the future of transit projects at SYSTRA Canada as a Lead Systems Engineer focused on requirements. This role emphasizes the development of robust requirements management plans within transit infrastructure programs.SYSTRA Canada seeks an experienced systems engineer who will take charge of requirement ...

Lead Systems Engineer Transit Requirements

Shape the future of transit projects at SYSTRA Canada as a Lead Systems Engineer focused on requirements. This role emphasizes the development of robust requirements management plans within transit infrastructure programs.SYSTRA Canada seeks an experienced systems engineer who will take charge of requirement ...

Lead OpenShift Engineer for Enterprise

Take on a pivotal role as a Lead OpenShift Engineer, contributing to the architecture and operational excellence of Red Hat OpenShift environments. This on-premises role is focused on enterprise-scale stability.We seek candidates with 6+ years of experience to support all aspects of OpenShift environments. Y ...

Lead Software Engineer Toronto, ON

Take the lead as a Software Engineer in Toronto's capital markets scene. This hybrid role focuses on enterprise applications, requiring 10+ years of experience in financial systems development and maintenance.As a Lead Software Engineer, you’ll be involved with crucial projects that merge C++, SQL, and ...

Lead Software Engineer for Automation

Join ScriptRunner as a Lead Software Engineer in Canada, focusing on automation within the Atlassian ecosystem. Shape your team’s success in a remote-first work culture.In this full-time role, you will lead a dynamic engineering team dedicated to developing solutions for ScriptRunner for Confluence Clo ...

Senior Lead Engineer Financial Systems

Join as a Senior Lead Engineer focusing on financial systems with expertise in C++, Python, SQL, and AWS. Utilize over 10 years of experience in Capital Markets to enhance trading workflows.We are looking for a Lead Engineer to spearhead the design and maintenance of complex financial applications. You ...

Lead Agentic AI Engineer Keyrus

Explore cutting-edge Agentic AI solutions with Keyrus as a Lead AI Engineer, thriving in a hybrid work setup. Drive your passion for technology to create impactful AI-driven projects in various industries.At Keyrus, you will own the architectural vision and execution of agentic AI systems, directly col ...

Lead Software Engineer at Marble

Shape the future of AI-powered tax solutions as a Lead Software Engineer at Marble. Join a passionate team focused on building innovative tools for accounting firms while leading engineering efforts.Marble is seeking an Engineering Lead to oversee the growth of its engineering team. This role merges technica ...

Lead Performance Engineer at UniSysTech

Drive performance excellence with UniSysTech Consulting as a Lead Performance Engineer for a major banking client. Focus on testing strategy and system optimization in a hybrid work model.As a Lead Performance Engineer, you will spearhead the performance engineering initiatives critical to enterprise applica ...

Lead Data Engineer at Tangerine

Join Tangerine as a Lead Data Engineer to build an innovative data platform supporting AI and ML applications in Canada. Collaborate closely with teams to drive efficient business solutions.In this senior role, you will shape and execute Tangerine's data engineering strategy. With over 12 years of experience ...

Lead Agentic AI Engineer Keyrus

Explore cutting-edge Agentic AI solutions with Keyrus as a Lead AI Engineer, thriving in a hybrid work setup. Drive your passion for technology to create impactful AI-driven projects in various industries.At Keyrus, you will own the architectural vision and execution of agentic AI systems, directly collabora ...

Lead Software Engineer Toronto, ON

Take the lead as a Software Engineer in Toronto's capital markets scene. This hybrid role focuses on enterprise applications, requiring 10+ years of experience in financial systems development and maintenance.As a Lead Software Engineer, you’ll be involved with crucial projects that merge C++, SQL, and Core ...

Lead Software Engineer for Automation

Join ScriptRunner as a Lead Software Engineer in Canada, focusing on automation within the Atlassian ecosystem. Shape your team’s success in a remote-first work culture.In this full-time role, you will lead a dynamic engineering team dedicated to developing solutions for ScriptRunner for Confluence Cloud. Yo ...

Lead Structural Engineer Role Cementation

Lead groundbreaking mining projects as a Senior Structural Engineer with Cementation in North Bay, Sudbury, Toronto, or Vancouver. Your expertise will guide safe, compliant engineering solutions.Cementation is actively seeking a Senior Structural Engineer who will be pivotal in delivering high-quality engine ...

Lead Mechanical Engineer 1 Nuclear

About Sargent & Lundy At Sargent & Lundy, we care about the health and well-being of our employees. Our commitment extends beyond the workplace, offering comprehensive healthcare plans and generous paid time off to support our team members in every aspect of their lives. We understand the importan ...

Lead Photonics Engineer at Lightmatter

Unlock the future of AI with your expertise in photonics as a Lead Engineer at Lightmatter. This role emphasizes developing integrated laser solutions in a hybrid work environment, collaborating with top engineering minds.Lightmatter invites applications for a Photonics Technical Lead to focus on groundbreak ...

Lead Software Engineer, AI Innovations

Step into a transformative role as Lead Software Engineer focusing on AI Innovations at CPP Investments in New York. This hands-on position combines leadership with cutting-edge development to advance organizational goals.In this essential role, you will engage in designing, coding, and building next-generat ...

Lead Photonics Engineer at Lightmatter

Unlock the future of AI with your expertise in photonics as a Lead Engineer at Lightmatter. This role emphasizes developing integrated laser solutions in a hybrid work environment, collaborating with top engineering minds.Lightmatter invites applications for a Photonics Technical Lead to focus on groun ...

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 ...

Global Payments Lead Engineer Role

Become a pivotal part of Scotiabank as a Global Payments Lead Engineer in Toronto. Innovate and enhance payment solutions within a collaborative and dynamic technology environment.In this leadership role at Scotiabank, you’ll champion a culture focused on client relationships while driving technical excellen ...

Lead Software Engineer at Loop

Shape the future of fintech as a Lead Software Engineer at Loop in downtown Toronto. Drive architectural decisions while developing core systems and mentoring your team daily.Join Loop's innovative team and take on a pivotal role as Staff Software Engineer. You'll lead full-stack architecture and devel ...

Lead Android Engineer at Okta

Step into a leadership role at Okta as a Lead Android Engineer focused on developing secure client software. Your expertise in Kotlin and software architecture will drive our projects.This position in the Device Authenticators team calls for a dynamic individual with 5-7 years of software development e ...

Lead Platform Engineer, TD Securities

OverviewSenior Platform Engineer (Hands‑on) – TD Securities, Toronto, Ontario ResponsibilitiesBuild and maintain a high‑performing platform, ensuring stability, reliability, security, and scalability. Manage underlying infrastructure (hardware, software, storage) across production, pre‑produc ...

Lead Data Engineer at Tangerine

Join Tangerine as a Lead Data Engineer to build an innovative data platform supporting AI and ML applications in Canada. Collaborate closely with teams to drive efficient business solutions.In this senior role, you will shape and execute Tangerine's data engineering strategy. With over 12 years of expe ...

GCP Lead Platform Engineer Contract

Join us as a GCP Lead Platform Engineer and transform cloud services. Oversee construction and management of a secure cloud infrastructure in this contract role.This contract position calls for a highly skilled Lead Platform Engineer with 10+ years in cloud engineering, particularly with Google Cloud P ...

Lead Software Engineer at Marble

Shape the future of AI-powered tax solutions as a Lead Software Engineer at Marble. Join a passionate team focused on building innovative tools for accounting firms while leading engineering efforts.Marble is seeking an Engineering Lead to oversee the growth of its engineering team. This role merges te ...

Global Payments Lead Engineer Role

Become a pivotal part of Scotiabank as a Global Payments Lead Engineer in Toronto. Innovate and enhance payment solutions within a collaborative and dynamic technology environment.In this leadership role at Scotiabank, you’ll champion a culture focused on client relationships while driving technical ex ...

Lead Software Engineer Informatica Cloud

Elevate your career with Sun Life as a Lead Software Engineer specializing in Informatica Cloud. Utilize your 7+ years of ETL experience and AWS expertise to influence major data projects in a hybrid work environment.In the Corporate Risk team, you will oversee the data management lifecycle and maintai ...

ADMS Lead Engineer Systems & Integrations

A leading engineering firm located in Toronto, Ontario is seeking an experienced ADMS Lead. The ideal candidate will have 10-15 years of experience in ADMS or OMS implementations, knowledge of major vendors, and strong problem-solving skills. Responsibilities include ensuring system integrity, collaborating with ...

Lead DevOps Engineer (ML Platform)

Job Description What's the opportunity? We’re looking for an experienced Lead DevOps Engineer (ML Platform) who will bring focus and subject-matter expertise around designing and implementing machine learning infrastructure and automation tools (MLOps and De ...

Lead Full Stack Engineer (Toronto)

Overview Requisition ID: Join a purpose driven winning team, committed to results, in an inclusive and high-performing culture. We are seeking a talented Full Stack Engineer to design, build, and maintain scalable applications in our Global Wealth Management Technology (GWMT) organization ...

Lead Mobile Engineer at CIBC

Shape innovative mobile app experiences for CIBC as a Lead Mobile Engineer focused on React Native. Embrace technical leadership and mentor a high-performing development team.At CIBC, you'll play a vital role in the Simplii Technology team, overseeing the design and development of scalable mobile application ...

Lead Senior Mechanical Engineer Ontario

Advance healthcare infrastructure as a Lead Senior Mechanical Engineer with Introba in Ontario. Your leadership in project management focuses on sustainability and innovation.In this Principal role, you will mentor a team of mechanical designers, manage project budgets, and enhance client relationships. Your ...

Lead Security Engineer in Canada

Drive security strategies with Arup as a Lead Security Engineer in Toronto or Ottawa. Oversee project management while enhancing your career with meaningful client engagement and technical delivery.In this senior role, you will manage physical security projects across various sectors, including data centers ...

Lead Software Engineer (Informatica Cloud)

You are as unique as your background, experience and point of view. Here, you’ll be encouraged, empowered and challenged to be your best self. You'll work with dynamic colleagues - experts in their fields - who are eager to share their knowledge with you. Your leaders will inspire and help you reach your p ...

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