152,375+ Lead Fullstack Engineer Python Fastapi Jobs in Toronto, Canada — Local Employers Hiring June 2026

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Lead Software Engineer, Public Markets Technology

Purpose. Performance. People. Joining CPP Investments means joining one of the world’s most admired and respected institutional investors to drive a single mandate: to deliver strong, sustainable returns for generations of Canadians. With a long‑term horizon and global reach, we deploy capital at scale acr ...

Lead Software Engineer with G Adventures

Explore a new opportunity as a Lead Software Engineer at G Adventures. Your technical skills will shape the development of groundbreaking applications tailored for travelers around the world.In this leadership role, you'll oversee the technical aspects of software projects, ensuring alignment with user needs ...

Lead Machine Learning Engineer at Thoughtworks

Drive innovation as a Lead Machine Learning Engineer at Thoughtworks, using modern architectures to create scalable ML systems. Your expertise will shape impactful solutions that align with business needs.In this senior engineering role, you will helm the design of technical solutions and oversee programs to ...

Lead Offensive Security Engineer at TCS

Take the lead in offensive security at Tata Consultancy Services as an Offensive Security Engineer. Specialize in analyzing AI-generated fixes and discovering real vulnerabilities.At TCS, you will spearhead the offensive security analysis necessary for the company's AI vulnerability program. Your role involv ...

Lead Development Engineer Search at MongoDB

Oversee the MongoDB Search Query platform as Lead Development Engineer in Toronto with a hybrid work arrangement. Ensure the success of your team in delivering high-availability search solutions.As part of MongoDB's Search team, you will lead and cultivate talent while resolving platform challenges inherent ...

Lead Backend Engineer for Gaming Solutions

Transform gaming experiences as the Lead Backend Software Engineer at Zynga. Focus on creating a robust Payments platform backed by your strong expertise in backend architecture and cloud services.Zynga's Central Technology team is in search of a seasoned engineer to take charge of its Payments platform. Thi ...

Lead Machine Learning Product Engineer Position

Shape the future of machine learning at Layer 6 as a Lead Machine Learning Product Engineer. Drive the design and implementation of data systems to enhance model delivery.We invite experienced candidates to helm the responsibilities of a Senior Machine Learning Product Engineer. This role involves coordinati ...

Lead Engineer, Total Fund Management Technology

## Lead Engineer, Total Fund Management TechnologyPostulerlocations: Torontotime type: Temps pleinposted on: Publié il y a 3 jour(s)job requisition id: JR00523**Objectif. Performance. Personnes.**Se joindre à CPP Investments, c’est intégrer l’un des investisseurs institutionnels les plus admirés et respe ...

Lead Data Engineer, Associate Director (Toronto)

Fitch Group is currently seeking a Associate Director/Lead Data Engineer based out of our Toronto office. As a leading, global financial information services provider, Fitch Group delivers vital credit and risk insights, robust data, and dynamic tools to champion more efficient, transparent financi ...

Lead Transmission Line Engineer, Power Delivery

A leading engineering company in Toronto is seeking a Senior Transmission Line Project Engineer to lead innovative substation projects for Canada's energy future. The role involves managing technical design aspects, client relationships, and project management of high voltage transmission lines. The ideal candid ...

Lead Project Engineer Nussir Project Opportunity

Blue Moon Metals is hiring a Senior Project Engineer for the Nussir Project in Northern Norway, focusing on engineering project oversight and strategic management. Your technical skills will guide the successful delivery of projects company-wide.Located in Toronto with potential relocation, you will manage e ...

Principal Engineer: Lead Web Apps & Architecture

An innovative company is seeking a Principal Engineer to spearhead technical excellence in software development. This role involves leading the development of web applications, ensuring high standards through code reviews, and collaborating with engineering leadership to shape the product roadmap. You'll work wi ...

Senior Mechanical Engineer Lead Systems & Innovation

A leading medical device company in Toronto is looking for a Senior Mechanical Engineer to lead the engineering strategy for medical devices. The role involves overseeing the mechanical system architecture, ensuring compliance with regulatory requirements, and mentoring junior engineers. Candidates should have o ...

Lead Project Engineer for Capital Initiatives

Direct major capital initiatives as Lead Project Engineer, focusing on engineering governance and cross-functional collaboration to ensure project success.This pivotal role encompasses responsibilities for managing the owner’s engineering team and collaborating with specialists on complex projects. You will ...

Senior Mechanical Engineer Defense Projects Lead

A leading engineering firm is seeking a Senior Mechanical Engineer in Vancouver. This role focuses on design and execution for National Defense projects, requiring a university degree in Mechanical Engineering and over 10 years of relevant experience. The candidate will lead teams, manage projects, and ensure co ...

Lead Full Stack Engineer — Remote Canada

A leading technology company is looking for a Lead Full Stack Engineer to develop application features in line with specifications. The ideal candidate will have extensive experience in Java and Javascript frameworks, including Angular and React, and will engage in incident management along with development task ...

Cloud Engineer Infrastructure Manager /Lead (Markham)

Primary Responsibilities: Drive 5G Wireless Platform development based on Cloud (AWS/Azure) concepts and infrastructure while leading an Engineering Software Development Team and reporting directly to the VP of Engineering. Support and personally contribute to building an overall Eng ...

Project Engineer: Lead Team, Cost & Schedule

A leading construction company in Ontario is seeking a Project Engineer to manage the administrative and technical aspects of construction projects. The role requires strong leadership, communication, and planning skills. The ideal candidate has a Bachelor’s degree in a related field and at least five years of e ...

Lead Transmission Line Engineer Hybrid Role

Drive innovation in transmission line engineering at Sargent and Lundy as our Lead Engineer. Benefit from a hybrid schedule while focusing on high-voltage design.In this pivotal role, you will design transmission lines from 69kV to 500kV and lead a small project team dedicated to excellence. Use your extensi ...

Senior Backend Engineer | Lead API & Microservices

A premier multi-family office is seeking a Senior Back-End Software Engineer to lead a team in developing innovative solutions. The ideal candidate will have significant experience with Laravel/Lumen and strong skills in API design and database optimization. This permanent, full-time position is based in Toronto ...

Team Lead Building Mechanical Engineer (Water)

Team Lead - Building Mechanical Engineer (Water) At Jacobs, we're challenging today to reinvent tomorrow by solving the world's most critical problems for thriving cities, resilient environments, mission-critical outcomes, operational advancement, scientific discovery and cutting-edge manufacturi ...

Project Engineer: Field Lead & Cost Control

A leading construction firm is seeking a Project Engineer in Toronto, Ontario. In this role, you will handle the technical and administrative aspects of projects, managing teams and ensuring compliance with safety regulations and specifications. The ideal candidate has a degree in a construction-related field, i ...

Lead Software Engineer – Capital Markets & Analytics

A leading bank in Canada is seeking a Lead Software Engineer to boost capital markets products and analytics platforms. The ideal candidate will have over 8 years of experience in enterprise application development, proficiency in Java or Python, and a strong understanding of SQL and modern development practices ...

Lead Machine Learning Engineer at Thoughtworks

Drive innovation as a Lead Machine Learning Engineer at Thoughtworks, using modern architectures to create scalable ML systems. Your expertise will shape impactful solutions that align with business needs.In this senior engineering role, you will helm the design of technical solutions and oversee programs to ...

Lead Site Reliability Engineer at Emburse

Take the lead as a Site Reliability Engineer III at Emburse, working hybrid to enhance our automated systems and ensure operational excellence. Your contributions will directly impact the performance and reliability of our AI-driven financial solutions.This SRE III role requires a strong combination of techn ...

Lead AI Engineer Innovative Data Systems

Elevate your career as the Lead AI Engineer at Upwork, focused on building robust AI systems that drive business insights and data-driven decision-making. Work in a hybrid environment and make a tangible impact.In this key role on the Data Platform & Services team, you will bridge your data engineering profi ...

Technical Lead Engineer Total Fund Management

Join CPP Investments as a Technical Lead Engineer, driving innovative solutions in Total Fund Management. Your expertise will help shape technology that empowers investment decisions.In this leadership role, you'll oversee the software development lifecycle for TFM, collaborating with various stakeholders to ...

Lead Software Engineer Cash App Banking

Elevate your career at Cash App as a Lead Software Engineer in the Banking team. Drive innovative banking experiences while improving system architecture for a seamless customer experience.Join Cash App's Banking server engineering team as a senior software engineer. This role emphasizes technical leadership ...

Lead Machine Learning Engineer at Quincus

Harness your expertise as a Lead Machine Learning Engineer at Quincus to transform logistics through AI innovation. Focus on developing and deploying scalable deep learning models.Quincus is revolutionizing the supply chain with advanced technology solutions. We are looking for a dynamic Machine Learning Eng ...

Lead kdb+ Engineer at Data Intellect

Take charge of high-performance kdb+ solutions with Data Intellect. This senior engineering role focuses on scalable architectures and impactful data-driven finance.As a Senior kdb+ Engineer, you will design and implement robust systems for top-tier financial clients. You will oversee technical delivery, ens ...

Lead Engineer for Linxon's Energy Projects

Experience a rewarding engineering career at Linxon as a Lead Engineer for Energy and Infrastructure Projects, located in Toronto, ON, with hybrid work flexibility. Focus on safety and cost-effective solutions.In this pivotal role, you will lead the engineering direction for a variety of projects, including ...

Lead Kdb+ Engineer at Data Intellect

Shape the future of data-driven finance as a Lead Kdb+ Engineer with Data Intellect. Drive innovation and deliver high-performance solutions for top financial institutions in a hybrid work environment.Data Intellect seeks a Senior Kdb+ Engineer with over five years of experience to lead technical delivery on ...

Lead Manufacturing Engineer at Bio Techne

Join Bio-Techne as a Lead Manufacturing Engineer, where you will spearhead strategic process improvements and New Product Introductions. Focus on delivering excellence in clinical diagnostics tools.This role requires an adept leader who can guide cross-functional teams in enhancing manufacturing efficiency a ...

Lead Software QA Engineer at Everflow

Drive quality assurance initiatives as a Lead Software QA Engineer at Everflow. Oversee the automation roadmap while working on our innovative SaaS Partner Marketing platform.In this Senior SDET position, your expertise will guide the development of a robust quality assurance framework. You will be an essent ...

Hybrid Lead Software Engineer in AI

Transform AI technology at Thomson Reuters as a Lead Software Engineer. Blend strategy, development, and senior leadership to innovate in legal, tax, and compliance domains.In this hybrid role, you will spearhead cutting-edge AI solutions while collaborating with diverse teams. With over eight years of softw ...

Lead Engineer for Public Markets Technology

Empower public market strategies at CPP Investments as a Lead Software Engineer focusing on technology solutions. Contribute to sustainable growth through innovative engineering practices. As a key member of the Capital Markets and Factor Investing Technology team, you will be responsible for the technical ...

Lead Data Center Engineer Arcadis Canada

Shape the future of data centers as the Market Sector Lead at Arcadis, driving innovation and strategy. This role emphasizes both leadership and technical excellence in engineering.You will oversee the entire design and engineering process for data center projects, employing 15+ years of industry experience ...

Technical Lead Software Engineer Dynamics 365

Shape the future of software solutions at OSC as a Technical Lead Software Engineer focusing on Dynamics 365. Lead design and development efforts in a full-time capacity.In this pivotal role, you will report to the Technical Manager while guiding the development of customized Dynamics 365 applications. Your ...

Lead Machine Learning Engineer at Upwork

Become a Lead Machine Learning Engineer at Upwork, contributing to high-stakes projects in reinforcement learning. Shape innovative AI systems and drive impactful experiences on our evolving platform.In this hands-on role within the Algorithms and Research team, you will design, develop, and scale reinforcem ...

Lead Java Engineer with AI Focus

Join Behavox as a Lead Java Engineer, specializing in AI-assisted engineering. Drive complex system solutions while collaborating in a hybrid work setting.In this role, you'll manage architectural decisions and implement advanced Java features for Behavox's cutting-edge platform. Expertise in Java internals, ...

Lead Software Engineer for Trading Systems

Transform trading platforms with innovative technology as a Lead Software Engineer in Toronto. Drive modernization initiatives using C++, SQL, and AWS to enhance performance and reliability.In this 6-month contract role, you'll lead efforts to modernize legacy trading systems within the Pension Fund industry ...

Lead Machine Learning Engineer at RBC

Step into the pivotal role of Lead Machine Learning Engineer with RBC, focusing on advanced AI applications in a high-performing team. Leverage your AI/ML expertise to drive innovation and deliver impactful solutions.This lead role requires a minimum of 5 years in software development, specializing in AI/ML ...

Lead Cloud Data Engineer at TCS

Elevate data engineering practices at Tata Consultancy Services in Toronto as a Lead Cloud Data Engineer. You'll design and optimize data pipelines while driving AWS innovations.Tata Consultancy Services is seeking a Principal Data Engineer to spearhead cloud-native frameworks on AWS. This role requires arch ...

Lead Machine Learning Engineer / Applied Scientist

We’re looking for a Lead Machine Learning Engineer / Scientist to join our Algorithms and Research team within the ML & AI organization. In this role, you will help shape the reinforcement learning systems that power high-impact experiences across Upwork, including Search & Recommendations and Uma, our AI ...

Lead Reliability Engineer for Azure Platforms

Join Manulife's team as a Lead Reliability Engineer, focusing on Azure Kubernetes Services and CI/CD processes in a hybrid environment. Drive platform efficiencies and best practices.In this director-level individual contributor role, you will advise Platform Services while directly managing platform roadmap ...

Lead Software Engineer at Consulting Firm

Elevate your career as a Lead Software Engineer in a consulting firm based in Toronto. Focus on driving software solutions and integrating complex systems in a full-time capacity.This role requires detailed coordination of system development and functionality definition while optimizing architecture through ...

Lead Engineer, Total Fund Management Technology

Role Summary As a Lead Software Engineer, you will play a critical technical leadership role within the Total Fund Management (TFM) Portfolio Management Engineering team, designing, building, and evolving enterprise-grade technology solutions that support top‑of‑house portfolio management and fund ...

Lead Software Engineer, Public Markets Technology

Purpose. Performance. People. Joining CPP Investments means joining one of the world’s most admired and respected institutional investors to drive a single mandate: to deliver strong, sustainable returns for generations of Canadians. With a long‑term horizon and global reach, we deploy capital at ...

Senior Lean Manufacturing Engineer NPI Lead

A leading bio-technology firm in Toronto seeks an experienced Manufacturing Engineer to optimize manufacturing processes and lead new product introductions. The role requires a strong background in Lean Manufacturing and project management, emphasizing collaboration with cross-functional teams. Applicants should ...

Lead MLOps Engineer & Tech Team Leader

A leading recruiting firm in Toronto is searching for an experienced MLOps Manager to combine technical leadership with people management. You will guide the technical direction of production services and grow a high-performing engineering team. The successful candidate will have a strong MLOps background and ex ...

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