152,380+ Lead Fullstack Engineer Python Fastapi Jobs in Toronto, Canada — Local Employers Hiring June 2026

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Lead Workday Engineer: HCM, Payroll & AI Enhancements

A leading finance tech company in Toronto is looking for a Staff Workday Engineer to improve Workday solutions across HCM, Payroll, and Benefits. The role involves working with teams to configure systems, build integrations, and support acquisitions. Candidates should have 6+ years of Workday experience, includi ...

Lead AI Engineer CRE SaaS & LLM Architect

A leading SaaS provider in Toronto is seeking a seasoned AI Architect to spearhead the development of advanced AI and machine learning features for a commercial real estate platform. This role requires a balance of technical leadership and hands-on development, focusing on LLM integrations and domain-specific mo ...

Senior DevOps Engineer (GCP) Cloud & Automation Lead

A global IT solutions provider is seeking a highly skilled Senior DevOps Engineer to design and operate scalable CI/CD platforms and cloud-native infrastructure. The ideal candidate will support production systems, manage CI/CD pipelines, and optimize developer workflows using tools like Kubernetes and Terraform ...

Senior Bridge Inspection Engineer Lead Projects & Field

A leading engineering consulting firm in Toronto seeks an experienced Project Manager specializing in civil and structural engineering for managing large-scale transportation projects. The ideal candidate will oversee inspections, lead design efforts, and ensure high-quality delivery of services across Canada. C ...

Senior Software Engineer Architecture Lead, Hybrid/Remote

A global data and insights firm in Toronto is looking for a Senior Software Engineer to design and implement systems that support its products and internal operations. The role involves end-to-end ownership of complex features and mentoring fellow engineers. The ideal candidate has significant experience in soft ...

Lead Cloud Data Engineer for AI Systems

Become the Lead Data Engineer at an AI-native organization and design cutting-edge data infrastructure for powerful enterprise solutions. Utilize your expertise to operationalize AI through innovative cloud-native platforms.This role calls for a seasoned data engineer with a minimum of 7 years in data archit ...

Dynamic Lead Civil Engineer – Shape Toronto's Infrastructure

Embrace the role of Lead Civil Engineer and make a lasting impact on Toronto's infrastructure projects. This is your opportunity to lead diverse projects while driving quality and client satisfaction.You will be responsible for the development and execution of key civil engineering projects. Ideal candidates ...

Lead Robotic Process Automation & Agentic AI Engineer

Your Role in Supporting Our Members: As the Lead Robotic Process Automation (RPA) & Agentic AI Engineer, you will design, develop, and lead the implementation of intelligent automation solutions using RPA platforms and AI technologies. This role focuses on building scalable automations that integ ...

Lead Power Platform Solutions Engineer at EY

Become a Lead Solutions Engineer at EY’s AI Centre of Excellence, focusing on Power Platform development. Build enterprise applications utilizing Microsoft technologies and AI.This role is designed for candidates with a passion for innovation and solution delivery. You will spearhead the development of ...

Design Verification Engineer technical lead, Annapurna Labs

Sr. Design Verification Engineer, Annapurna Labs – Amazon Web Services (AWS) Amazon Web Services (AWS) is the world’s most comprehensive and broadly adopted cloud platform, and our Custom Silicon organization is revolutionizing how we deliver cloud services to our customers. You’ll be part of a t ...

AI Prompt Engineer — Lead Custom AI Automations

A leading AI automation company in Toronto is seeking an AI Prompt Engineer to bridge the gap between its automation platform and customer needs. You'll engage with customers to optimize implementations and enhance their automation processes. Ideal candidates will have strong AI prompting skills and experience i ...

Senior Java Full Stack Engineer & Tech Lead

A leading technology consultancy in Toronto is seeking an experienced Senior Full Stack Developer to design and maintain scalable web applications across various technologies. This position requires strong skills in frontend and backend development, with experience in modern frameworks and cloud platforms. Candi ...

Lead Backend Engineer at Venn, B2B Fintech

Advance your career as a Lead Backend Engineer at Venn, the top B2B fintech in Canada. Take charge of building innovative banking solutions for modern entrepreneurs.In this role, you will lead the development of groundbreaking financial products tailored for Canadian businesses. With 5+ years of Java a ...

Lead Engineer for API and Infrastructure Development

Take charge as Lead Engineer, focusing on API and cloud infrastructure for search platforms. Drive the design of robust management frameworks and enhance self-service capabilities for clients.This senior role blends technical leadership with hands-on engineering. You will design the API control plane a ...

Lead Software Engineer for Search at Autodesk

Drive innovation as a Lead Software Engineer within Autodesk's Search Infrastructure team, building advanced search platforms for industry-leading applications. This role emphasizes scalability and reliability.At Autodesk, innovators of design tools, we seek a Lead Software Engineer to strengthen our S ...

Lead Full Stack Engineer, Data Catalog Services

Work Location:Toronto, Ontario, CanadaHours:37.5Line of Business:Technology SolutionsPay Details:$125,500 - $154,000 CADThe pay details posted reflect a temporary market premium specific to this role that is reassessed annually.TD is committed to providing fair and equitable compensation opportunities to all col ...

Lead Full Stack Engineer for AI Systems

Shape the future of AI at Solink as a Lead Full Stack Engineer in a hybrid setting in Ottawa or Toronto, ON. This full-time role demands advanced engineering skills and leadership.In this impactful position, you will construct innovative AI-driven systems that enhance video security and operational efficienc ...

Lead Senior Back End Engineer Legal Tech

Become a Lead Senior Back End Engineer at Proof's Mobile Team and drive innovation in legal tech. This fully remote role enables you to impact thousands of law firms across the US from Canada.Joining Proof, you'll lead the architecture and optimization of backend services while ensuring security and scalabil ...

Senior Lead Machine Learning Engineer, Agentic AI

About the Role We’re seeking aSenior Lead Machine Learning Engineerto architect, ship, and scale the next generation of agentic intelligence across Upwork. You will lead end‑to‑end development of AI agents and the platform that powers them—from LLM training and evaluation to runtime orchestra ...

Lead MLOps Engineer Role with Azure Focus

Join RBC Borealis as a Principal MLOps Engineer, specializing in Azure infrastructure and automation for machine learning deployment. This opportunity combines innovation and expertise in driving ML solutions.You’ll work within a team that collaborates with leading researchers to refine machine learnin ...

Senior Software Engineer API, Microservices & RPA Lead

A technology solutions provider located in Toronto, Canada, is seeking a Senior Software Developer to design and implement advanced software solutions. The ideal candidate will possess extensive experience in Java, microservices, and Power Automate, with a strong ability to develop APIs and modern web applicatio ...

Senior Structural Engineer – Lead Design & Mentoring (Hybrid)

A leading engineering firm is seeking a Senior Structural Engineer in Toronto. This role involves leading design teams, conducting engineering calculations, and ensuring project delivery timelines are met. Candidates should have over 8 years of structural engineering experience, a relevant degree, and P. Eng. li ...

Remote Staff Android Engineer – Lead Monetization Features

A leading social media platform in Toronto is seeking a Staff Android Engineer to join their innovative team. In this role, you will design and develop Android features for monetizing user contributions. The ideal candidate has over 5 years of mobile development experience and strong skills in Kotlin and Jetpack ...

Sr. Machine Learning Product Engineer – Tech Lead

We are looking for experienced Senior Machine Learning Product Engineers (Sr. MLPE) who have worked under tight deadlines and on challenging tasks. The ideal candidate is a master of coding and system design. They also are experts in data engineering and/or machine learning. The candidate will be the go-to perso ...

Lead QA Engineer: Data Warehouse & ETL Testing

A leading health information organization in Toronto seeks a Team Lead for Quality Assurance. This individual will oversee QA processes ensuring the delivery of high-quality applications. Responsibilities include leading a QA team, developing test strategies, and working on automation frameworks. Candidates shou ...

Azure Solutions Principal Engineer Lead Cloud Programs

A leading customer experience firm is seeking a Principal Software Engineer, Azure Solutions, located in Toronto, Canada. This role involves leading client engagement and project leadership for Azure solutions. Candidates should have over 5 years of experience in Agile delivery, Azure, and key technologies such ...

Senior QA Automation Engineer: Lead Test Automation

A technology solutions firm in Toronto is looking for a Senior Automation Developer with extensive experience in automation testing. The role requires identifying automation opportunities, executing QA tests, and collaborating with development teams to ensure high-quality software delivery. Candidates should hav ...

Senior Lead Machine Learning Engineer, Agentic AI

Senior Lead Machine Learning Engineer, Agentic AI Upwork Inc.’s (Nasdaq: UPWK) family of companies connects businesses with global, AI-enabled talent across every contingent work type including freelance, fractional, and payrolled. This portfolio includes the Upwork Marketplace, which con ...

Senior Data Engineer ETL & Data Platform Lead

A tech consulting firm in Toronto is seeking a Senior Data Engineer to design and implement robust ETL solutions. You will support existing applications while ensuring high-quality deliverables through expert technical leadership. The ideal candidate should possess significant experience in Python, shell scripti ...

Senior Full Stack Engineer & Tech Lead – SaaS

A leading software development company is seeking a talented full stack software engineer in Toronto to build scalable SaaS applications. The ideal candidate will have 2+ years of experience, expertise in Ruby on Rails and/or Java, and a strong understanding of the full software development lifecycle. This role ...

Senior Release Engineer: Automation First Delivery Lead

A leading recruitment firm in Toronto is seeking a Senior Application Release Engineer for a contract role. This position focuses on improving software delivery through automation practices and provides technical leadership in a large financial services environment. The ideal candidate has over 10 years of exper ...

Area Lead & Project Engineer – Renewable Energy Delivery

A leading renewable energy company in Toronto is seeking a Project Engineer – Area Lead to oversee long-duration energy storage projects. The role involves collaborating with engineering teams to ensure safe and cost-effective project delivery. Ideal candidates have 7-10 years of experience in engineering and ar ...

Senior Bridge Inspection Engineer Lead Projects & Field

A leading engineering consulting firm in Toronto seeks an experienced Project Manager specializing in civil and structural engineering for managing large-scale transportation projects. The ideal candidate will oversee inspections, lead design efforts, and ensure high-quality delivery of services across Canada. C ...

Senior Software Engineer & Tech Lead (Full Stack)

A technology firm in Toronto is seeking a Principal Software Engineer with at least 8 years of experience to lead application development. This role involves building solutions using modern technologies like React and Node.js, mentoring other developers, and collaborating across teams. The ideal candidate will h ...

Senior Lead Security Engineer (Splunk & Cloud SIEM)

OverviewSenior Lead Security Engineer (Splunk & Cloud SIEM) – This role is a high-level engineering position that sits at the intersection of Big Data (Splunk) and Cloud Infrastructure, requiring a candidate who can build the eyes of a security operations center. Key Skills SpotlightSplunk ...

Azure Solutions Principal Engineer Lead Cloud Programs

A leading customer experience firm is seeking a Principal Software Engineer, Azure Solutions, located in Toronto, Canada. This role involves leading client engagement and project leadership for Azure solutions. Candidates should have over 5 years of experience in Agile delivery, Azure, and key technologies such ...

Senior Structural Project Engineer: Lead Complex Structures

A global engineering firm is seeking a Senior Structural Project Engineer to tackle complex challenges and innovate in design. The role involves applying advanced engineering concepts, mentoring junior engineers, and collaborating with clients and industry experts. Ideal candidates will have a Bachelor’s degree ...

Azure Cloud Engineer – Landing Zones & Security Lead

A leading cloud consulting company in Ontario is seeking a Senior Cloud Engineer specializing in Microsoft Azure. This critical role involves designing and hardening cloud solutions, automating infrastructure, and working closely with business leaders. The ideal candidate has extensive experience with Azure tech ...

Senior AEM Backend Architect — Remote Lead Engineer

A leading marketing agency is seeking a Senior Back-end AEM Developer for a full-time, remote position in Canada. The role focuses on leading the architecture and development of AEM applications, with responsibilities including defining standards and collaborating with stakeholders. Candidates should have over 6 ...

Senior DevSecOps Engineer: Lead Security at Scale

A global technology company based in Toronto is seeking an experienced DevSecOps Engineer to lead security initiatives across customer data and applications. The position involves developing automation scripts, mentoring junior team members, and establishing security practices. A successful candidate will have 3 ...

Lead Software Engineer AI, Cloud & Client Impact

A leading professional services firm in Toronto is seeking a lead software developer to design, develop, and deliver enterprise-level applications. You will mentor junior team members, collaborate with clients, and work with modern technologies in a hybrid environment. Ideal candidates have 3+ years of experienc ...

Transformational Lead Software Engineer in Banking Technology

Take on the challenge of a Lead Software Engineer specializing in banking technology. Drive project success through your analytical skills and passion for using innovative technologies to solve complex problems.In this dynamic role within Global Banking and Markets Engineering, your leadership will be ...

Lead Engineer for Substation Protection and Telecommunications

Embrace a critical leadership role as a Lead Engineer specializing in protection and telecommunications for high voltage substations, all while enjoying a flexible hybrid schedule. Contribute to innovative engineering practices that meet client requirements and regulatory standards.In this position, yo ...

Electrical Engineer Lead for Advanced Energy Solutions

Take the lead in advancing energy solutions as an Electrical Engineer. Focus on complex electrical designs and modeling for cutting-edge solar and energy storage projects.Join a dynamic team where your electrical engineering skills will shine. This role involves creating accurate designs for various po ...

Lead Platform Streaming Engineer | Scale Data Infrastructure

A leading tech company in Toronto is seeking a Software Engineer with a passion for distributed systems and platform engineering. You will influence the engineering roadmap, design critical systems for data-intensive use cases, and mentor senior engineers. The ideal candidate has over 5 years of experience in so ...

Senior Municipal Engineer — Lead Water & Drainage Projects

A renowned engineering consultancy is seeking a Senior Municipal Engineer in Toronto to manage a variety of municipal engineering projects. Responsibilities include providing technical expertise, leading project phases from inception to completion, and ensuring compliance with regulations. The ideal candidate wi ...

Lead Design Systems Engineer React/TS, Hybrid

A global leader in financial services is seeking a Lead Developer for Design Systems to evolve their design system. This role involves building reusable UI components using React, maintaining cross-browser compatibility, and contributing to back-end services. The ideal candidate has over 5 years of experience in ...

Water/Wastewater Process Engineer — Hybrid, Lead Projects

A global infrastructure consulting firm in Toronto is seeking a Process Engineer - Water/Wastewater. This role involves designing municipal servicing projects like sewage pumping stations, coordinating with clients and agencies, and ensuring project quality. Ideal candidates have a Bachelor's Degree in Engineeri ...

Senior QA Engineer — Automation, API & UAT Lead

A leading bank in the Americas is seeking a skilled QA Analyst in Toronto to ensure the quality of application deliverables. The role requires 5+ years of test automation experience, particularly with Selenium and API testing. You will collaborate with development teams to enhance product quality throughout the ...

Senior ADMS Lead Engineer Systems Delivery Expert

A leading engineering firm in Toronto, Ontario, is looking for an ADMS Lead. This role involves providing guidance on projects and ensuring system readiness across various ADMS workstreams. Candidates should have 10-15 years of experience with ADMS/OMS implementations and a strong ability to resolve complex issu ...

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