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

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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 and 6+ ...

Lead Frontend Software Engineer for Digital Solutions

Shape the future of web applications as a Lead Frontend Software Engineer. Focus on architecture, mentorship, and delivery of high-quality applications within a collaborative team environment.This role combines strategic influence with hands-on leadership, aiming to mentor engineers and uphold coding standar ...

Lead Data Engineer, Cloud Platforms at Citco

Advance your career as a Lead Data Engineer at Citco, specializing in Databricks and cloud data solutions. Help shape the future of data engineering in a collaborative environment.You will manage and lead a team of data engineers at Citco, focusing on developing and optimizing data platforms that drive busin ...

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 Search ...

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 and man ...

Growth Focused Lead Civil Engineer – Toronto Expansion

An engineering firm is seeking a Lead Civil Engineer for its operations in Toronto. The role involves overseeing and managing civil engineering projects from inception to completion while ensuring client satisfaction. Candidates should hold a Bachelor's degree in engineering and possess at least 5 years of relev ...

Senior GIS Engineer Client Liaison & Offshore Lead

A leading utility service provider in Toronto is looking for a skilled professional to oversee work allocation, coordinate with offshore teams, and communicate effectively with clients. The ideal candidate will possess strong GIS knowledge, excellent oral and written communication skills, and preferred experienc ...

Lead AI & Data Analytics Engineer (Full Stack)

A financial services provider in Toronto, Ontario is seeking a seasoned analytics professional to lead key data-driven projects. You will collaborate with business leaders to design scalable analytics solutions and implement AI/ML models. The ideal candidate has over 10 years of experience in data science, a str ...

Lead Mobile Engineer Hybrid Role at Jobber

Join Jobber’s hybrid team as a Lead Mobile Engineer, shaping innovative solutions for small businesses across Edmonton, Toronto, Kitchener-Waterloo, and Vancouver. Drive the development of our mobile applications with your technical expertise.In this hybrid role at Jobber, you will collaborate closely with a ...

Lead Engineer for AI Systems at Upwork

Enhance data-driven decision-making as a Lead Engineer for AI Systems at Upwork in Toronto. Utilize advanced AI capabilities to drive business impact. In this role, you'll be part of the Data Platform & Services (DPS) team, designing and deploying agentic frameworks and natural language querying capabilities ...

Practice Lead Electrical Forensic Engineer Toronto, Ontario

Practice Lead - Electrical Forensic Engineer Launch and grow our Electrical Forensic Engineering practice focused on investigating electrical failures, fire causes, and energy systems. Location: Toronto, ON Position Type: Full-time, Hybrid Reports To: Preside ...

Lead Software Engineer in Toronto Hybrid Role

Become a Lead Software Engineer at Morningstar Retirement in Toronto, where your technical leadership will shape innovative solutions for investors. This hybrid role emphasizes code quality and collaboration.This role will involve an equal mix of team leadership and individual contribution. You will work wit ...

Lead Software Engineer for Cash App Banking

Shape the future of consumer banking as a Lead Software Engineer with Cash App. Drive architectural decisions and mentor engineers for impactful system innovations.In this role, you will lead the technical strategy on Cash App Banking's server engineering team, collaborating closely with product managers, de ...

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 ...

Lead Full Stack Engineer Specialized in AI

Drive AI innovation as a Senior Full Stack Software Engineer. Embrace Claude's tools to enhance software quality and development workflows in this leading role.You will have an essential impact in shaping both the architecture and implementation of machine learning-driven applications. By acting as a technic ...

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 ...

Senior Data Engineer – Spark, Databricks & Azure Lead

A leading consulting firm in Toronto is seeking a Big Data Specialist with over 5 years of experience in Spark Development using Pyspark or related technologies. This role involves collaborating with technology teams, implementing solutions, and providing technical support. Ideal candidates will have a backgroun ...

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 ...

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 key to ...

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 ...

Chief Mine Engineer — Strategic Planning & Budget Lead

A leading mining company in Toronto, Ontario is seeking a Chief Mine Engineer (CME) to supervise technical staff and manage Mine Planning services at various mine sites. The ideal candidate will possess a mining engineering degree and have at least five years of relevant experience. Responsibilities include mana ...

Ontario Highway Design Engineer — Lead MTO Projects

Join a forward-thinking company dedicated to engineering a better future for our planet and its people. As a Highway Design Engineer, you will play a vital role in delivering innovative highway design solutions across Ontario. This position offers the opportunity to work on major projects while mentoring junior ...

Senior Test Automation Engineer — QA & DevOps Lead

A leading tech firm in Toronto is seeking a Senior Automation Developer to enhance their software testing processes. Candidates must have extensive experience with automated testing tools such as Katalon and Selenium, as well as strong problem-solving skills. This role requires collaboration with teams to identi ...

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 ...

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 ...

Airport Civil Engineer: Pavement & Design Lead (Hybrid)

A leading engineering firm in Canada is seeking an experienced civil engineer specializing in airport infrastructure projects. The successful candidate will have a minimum of 7 years' experience and provide expertise in airside civil design and construction. Responsibilities include ensuring compliance with desi ...

Licensed Plumbing Engineer Lead Design & Project Delivery

A plumbing and HVAC company is seeking a Licensed Plumbing Engineer based in Toronto to support plumbing and heating projects. The ideal candidate will design and oversee plumbing systems while ensuring compliance with building codes and safety regulations. Responsibilities include reviewing blueprints, supervis ...

Databricks Data Engineer ETL Lead (Hybrid Toronto)

A leading financial technology provider in Canada is seeking a Mid-Senior level professional to lead ETL development and manage a Databricks platform for Capital Markets. This role requires strong expertise in Python and SQL, with a focus on delivering seamless data flows and adhering to best practices. Candidat ...

Lead Software Engineer / Head of Software Architecture

Lead Software Engineer / Head of Software Architecture Lead Software Engineer / Head of Software Architecture 6 days ago Be among the first 25 applicants Get AI-powered advice on this job and more exclusive features. We are seeking an experienced Lead Software Engineer or Head ...

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 ...

Senior Data & AI Engineer GenAI & MLOps Lead

A leading healthcare company in Toronto is looking for a Data Engineering Lead to oversee the design and implementation of data pipelines and AI workflows. The ideal candidate will have strong experience in Snowflake, Airflow, and a background in healthcare data. Responsibilities include collaborating with busin ...

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 Site Reliability Engineer – Cloud & Automation Lead

A leading supply chain solutions provider is seeking a Site Reliability Engineer to optimize and ensure the reliability of their cloud infrastructure across AWS and Kubernetes. This role emphasizes automation, incident management, and continuous improvement. Candidates should have at least 5 years of experience ...

Principal Civil Engineer | Lead High Impact Infrastructure

A leading engineering consultancy in Toronto is seeking a Principal Civil Engineer to lead multi-disciplinary projects. You will manage the design of highways and drainage, engage with authorities, and mentor junior engineers. The ideal candidate has strong technical expertise, proficiency in design software, an ...

Lead AI Engineer Remote at NTT DATA

Elevate your career as a Remote Lead AI Engineer with NTT DATA in Toronto, Ontario. Contribute to designing AI systems that empower business needs and regulatory compliance.In this role, you will utilize 3-5 years of AI experience, focusing on research, development, and alignment of AI technologies with busi ...

Lead AI Engineer Remote at NTT DATA

Elevate your career as a Remote Lead AI Engineer with NTT DATA in Toronto, Ontario. Contribute to designing AI systems that empower business needs and regulatory compliance.In this role, you will utilize 3-5 years of AI experience, focusing on research, development, and alignment of AI technologies with busi ...

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 Security Engineer – Ethical Hacker & SIEM Lead

A leading education investment company in Toronto is looking for a Security Engineer (Ethical Hacker) to manage security infrastructure and enhance compliance with ISO27001 and SOC2 standards. The ideal candidate will have 6-10 years of InfoSec experience, and should be skilled in addressing security breaches, a ...

Principal Engineer, Apps Lead Cross Platform Streaming

A leading tech company in Toronto is seeking a Principal Engineer to lead the cross-functional client engineering team for a high-performance video streaming platform. The ideal candidate will have over 10 years of software engineering experience, with deep expertise in mobile and web development, and a passion ...

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 FinTech Backend Engineer & Data Pipelines Lead

A global travel company is seeking a Staff Software Engineer (FinTech) to join their team in Bangkok, with relocation provided. The ideal candidate will have over 8 years of experience in Java, Kotlin, or similar, and strong proficiency in big data and SQL. This role involves developing robust backend systems, a ...

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 ...

(Canada) Lead AI Security Software Engineer (contract)

(Canada) Lead AI Security Software Engineer (Contract) Contract (3 months 23 days) Published a week ago Python AI AWS lead ai Job Description – Lead AI Security Software Engineer Are you passionate about applying large language models ...

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 Innovative Infrastructure Projects

A leading engineering consulting firm in Toronto is seeking an experienced Structural Engineer to lead project teams in designing and managing structural projects. The ideal candidate will have over 10 years of design experience, be licensed as a Professional Engineer in Ontario, and possess strong communication ...

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 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 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 ...

Lead Site Reliability Engineer for Multi Cloud

Lead the charge in securing multi-cloud communications as a skilled Site Reliability Engineer. Bring your network expertise to develop and maintain critical infrastructure for service connectivity.The Fabric team is looking for an experienced engineer with over 10 years in distributed systems. This role play ...

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