164,140+ Lead Software Engineer Pythonreact Jobs in Toronto, Canada — Local Employers Hiring June 2026

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AI Driven QA Engineer: Agile Testing & Automation

A leading technology firm in Toronto is looking for an Agile Test Engineer to drive quality in software development. This role involves designing and executing comprehensive testing strategies, collaborating with cross-functional teams, and utilizing AI-driven testing tools. Candidates should have 3-5 years of e ...

Senior Staff Engineer, Developer Productivity & Ecosystem

A leading database software company in Toronto seeks a Senior Staff Engineer to enhance its developer ecosystem. You will partner with engineering leadership to drive developer velocity and efficiency, optimizing software development tools and services. Ideal candidates have 10+ years of experience in developer ...

Senior Go Engineer Identity Platform, Hybrid + Equity

Starboard Recruitment seeks a Senior Software Engineer (Golang) to join a fast-paced, innovative engineering team in Toronto. This role focuses on building a cutting-edge identity orchestration platform and offers a hybrid work environment with ample opportunities for professional growth and collaboration on exc ...

Senior Staff Software Architect — Enterprise Solutions (Hybrid)

A leading financial institution in Toronto is seeking a Senior Staff Software Engineer to design and implement enterprise-level architecture solutions. The ideal candidate will have over 8 years of experience in software engineering and systems architecture, along with proficiency in cloud solutions like AWS. Th ...

Senior AI Backend Engineer – Hybrid Role

A global leader in information services is looking for a Senior Software Engineer to join their AI-driven team in Toronto. This role involves designing backend services for innovative AI solutions focused on accounting workflows. The ideal candidate should have strong Python skills, experience with AI systems, a ...

ML Engineer, Open Source LLM Inference & Optimization

A leading software solutions company in Toronto seeks a Machine Learning Engineer to optimize and develop advanced deep learning software for LLMs. You will collaborate with product and research teams to create model optimization algorithms and productize deep learning research. Ideal candidates should have stro ...

Inference Performance Engineer, ML Systems & Optimization

A leading AI technology company in Toronto is seeking an experienced software engineer to join their inference model team. This role involves prototyping AI architectural tweaks, developing benchmarking automation, and collaborating closely with silicon teams. Candidates should have over 3 years of experience in ...

Senior Java Developer

Position DescriptionWe are Canada's largest independent information technology services firm, and after 45+ years, we're still growing! Join Canada's largest IT Company as a Senior Java Developer, in our Financial Services Sector in Toronto. Come build High Value Payments with us!Location - D ...

Exciting Senior Civil Engineer Roles in Toronto, Available Now

Take the next step in your career with Senior Civil Engineer roles in Toronto, Canada. Engage in pivotal site investigations, risk assessments, and CAD-based blueprint creation.These opportunities highlight a strong need for skilled professionals in civil engineering projects across the city. As a Senior Civ ...

Highway Design Engineer Associate Role

Elevate your engineering career as a Highway Design Engineer Associate with Parsons in Ontario. This position offers a blend of technical design and collaboration within a supportive team.As part of the Critical Infrastructure team, you will engage in highway projects while adhering to MTO standards. This ro ...

Senior OCS Engineer in Electrified Transit

Transform electrified systems with WSP as a Senior OCS Engineer. Design safe, reliable solutions for Canada’s rail networks while leading multidisciplinary teams.Become a vital part of WSP’s Rail & Transit team, recognized for its excellence in engineering. As a Senior OCS Engineer, you will be instrumental ...

Exciting Senior Civil Engineer Roles in Toronto, Available Now

Take the next step in your career with Senior Civil Engineer roles in Toronto, Canada. Engage in pivotal site investigations, risk assessments, and CAD-based blueprint creation.These opportunities highlight a strong need for skilled professionals in civil engineering projects across the city. As a Senior Civ ...

Exciting Senior Civil Engineer Roles in Toronto, Available Now

Take the next step in your career with Senior Civil Engineer roles in Toronto, Canada. Engage in pivotal site investigations, risk assessments, and CAD-based blueprint creation.These opportunities highlight a strong need for skilled professionals in civil engineering projects across the city. As a Seni ...

Sr. Engineer Optical boards

Job Title ::Sr. Engineer- Optical Boards 3 Locations :: Montreal,QC / Toronto,ON /Ottawa,ON (Hybrid) Permanent Full Time/ Long Term Contract Immediate Hiring for Sr. Engineer, who has strong experience in optical boards. Role Overview: Job involves development of new features on optical LO side. The engineer sho ...

Intermediate Structural Engineer in Toronto

Join Stantec's Buildings team as an Intermediate Structural Engineer in Toronto, Ontario, and help design innovative structures. Bring expertise in steel, concrete, and wood to various projects each day.We are looking for a skilled Intermediate Structural Engineer to aid in our mission of integrated design. ...

Intermediate Structural Engineer in Toronto

Join Stantec's Buildings team as an Intermediate Structural Engineer in Toronto, Ontario, and help design innovative structures. Bring expertise in steel, concrete, and wood to various projects each day.We are looking for a skilled Intermediate Structural Engineer to aid in our mission of integrated design. ...

Exciting Senior Civil Engineer Roles in Toronto, Available Now

Take the next step in your career with Senior Civil Engineer roles in Toronto, Canada. Engage in pivotal site investigations, risk assessments, and CAD-based blueprint creation.These opportunities highlight a strong need for skilled professionals in civil engineering projects across the city. As a Senior Civ ...

Kernel Engineer

Kernel Engineer (AI Accelerator) We are seeking a full remote Kernel Engineer to join a heavily funded ($150m+ Series B) team building next generation hardware AI accelerators for neural net inference. You’ll join a superb group of Engineers realizing the full capabilities of t ...

Full Stack Engineer with 8090

Shape the future of software at 8090 as a Full Stack Engineer, specializing in Python, Typescript, and web applications. Your role will focus on creating client-focused software solutions and enhancing our software factory.In this customer-facing role, you will need a strong foundation in full-stack developm ...

Senior Engineer for Hedge Accounting Solutions

Become a Senior Engineer for Hedge Accounting Solutions at Derivative Path. Utilize your software expertise in a fully remote role to support the unique needs of financial institutions.As a key member of the hedge accounting team, your primary focus will be to design and implement software solutions th ...

Full Stack Engineer with 8090

Shape the future of software at 8090 as a Full Stack Engineer, specializing in Python, Typescript, and web applications. Your role will focus on creating client-focused software solutions and enhancing our software factory.In this customer-facing role, you will need a strong foundation in full-stack de ...

Cognizant SDET Automation Engineer Role

Launch your career as a SDET Automation Test Engineer at Cognizant, leveraging your Java and automation expertise to transform testing for banking clients. This hybrid position provides the flexibility needed for a balanced work life.Cognizant is looking for a highly skilled professional to join our team in ...

AI SDLC Automation Specialist & Coach

We are looking for a transformative leader to join our team as an AI SDLC Automation Specialist & Coach. This role is for a visionary software engineer who is passionate about revolutionising the software development lifecycle by leveraging the power of GenAI and agentic development tools like Cursor and G ...

AI SDLC Automation Specialist & Coach

We are looking for a transformative leader to join our team as an AI SDLC Automation Specialist & Coach. This role is for a visionary software engineer who is passionate about revolutionising the software development lifecycle by leveraging the power of GenAI and agentic development tools like Cursor and GitHub ...

Photonics Data Analysis Engineer

Xanadu’s mission is to build useful quantum computers. We are a team of learners, innovators, and problem solvers, creating technology that has never been built before. Few people get to be a part of something like this—a journey where success can lead to solving some of the world's most challenging problems and ...

Principal Product Engineer

Principal Product Engineer - Job Description At Cadence, we hire and develop leaders and innovators who want to make an impact on the world of technology.This role is for an existing vacancy.About Us Cadence is a pivotal leader in electronic design, building upon more than 30 years of computa ...

Systems Design Specialist Senior

Toronto, Ontario, Canada (Hybrid) We are hiring a Signaling Design Specialist - Senior for our Toronto office. The Signaling Design Specialist - Senior will, among other responsibilities, perform system design, signaling design, analysis, modelling, and simulation to specify communication-b ...

Senior Director, Program Delivery

Job Description What is the opportunity? RBC's AI Group is scaling rapidly to deliver on our $1 billion AI ambition, deploying transformative AI solutions across credit, fraud detection, market intelligence, pricing optimization, and generative AI applications. As the AI Solutions portf ...

Senior Director, Program Delivery

Job Description What is the opportunity? RBC's AI Group is scaling rapidly to deliver on our $1 billion AI ambition, deploying transformative AI solutions across credit, fraud detection, market intelligence, pricing optimization, and generative AI applications. As the AI Solutions portf ...

Senior Director, Program Delivery

Job Description What is the opportunity? RBC's AI Group is scaling rapidly to deliver on our $1 billion AI ambition, deploying transformative AI solutions across credit, fraud detection, market intelligence, pricing optimization, and generative AI applications. As the AI Solutions portf ...

Senior Java Engineer: AWS, Terraform, Python | Cloud

A leading technology firm in Toronto is seeking a Senior Software Engineer to build scalable cloud-based solutions using Java and AWS. The role requires strong hands-on experience in software development and architecture, along with excellent problem-solving and communication skills. Ideal candidates will have e ...

Senior Full Stack JS Engineer Hybrid Marketing Web Apps

A leading investment research company is seeking a Senior Software Engineer to join its team in Toronto. The role focuses on full-stack JavaScript development, particularly using Vue.js and Node.js. Candidates should have 3+ years of software development experience and a collaborative attitude. This position fol ...

Senior Data Platform Engineer Scale TB Data & AI

A leading data platform company located in Toronto is seeking a Senior Software Engineer to contribute to their data storage solutions. The successful candidate will have over 6 years of experience in software development, especially with Java and Python, and a passion for complex data challenges. This role incl ...

Senior Backend Engineer: Automated Planning & Scheduling

A leading meal kit delivery service in Toronto is seeking a Senior Software Engineer to enhance their backend systems using Python and FastAPI. This role involves building the algorithmic engine for automated planning, supporting frontend applications, and contributing to an event-driven architecture. Candidates ...

Global Card Tech Architect & Transformation Leader

A major North American financial institution is seeking a Senior Distinguished Engineer in Toronto, Ontario. This role involves influencing technical direction, mentoring future engineering leaders, and driving improvements in software engineering practices. With a focus on leveraging cloud technologies and advo ...

Applied AI Engineer: Build Scalable RAG Pipelines & Features

A tech startup specializing in AI is seeking a skilled software engineer to design and implement innovative AI-driven product features. The role involves collaborating with stakeholders from different departments to launch machine learning-powered applications. The ideal candidate should have significant experie ...

Senior AI Research Engineer — Scalable ML Systems

A leading technology firm in Toronto is seeking a Senior Research Engineer to develop AI and ML-driven solutions. This role involves creating scalable data processing systems, engaging in the full software development lifecycle, and collaborating with interdisciplinary teams. The ideal candidate has a Bachelor's ...

Backend Engineer, AI Agents Remote

A financial technology company is looking for a Software Engineer II to join their AI Agents team in Ontario, Canada. The ideal candidate will have over 1.5 years of software engineering experience, proficiency in web app development using React or Vue, and skills in API design using Python or Kotlin. This remot ...

Full Stack Billing Engineer — Equity & Revenue Platform

A leading technology company in Toronto is seeking a Full Stack Engineer to build impactful software services and platforms. The ideal candidate has 2-5 years of experience in software engineering and strong collaboration skills. Responsibilities include leading technical projects, debugging issues, and designin ...

Senior .NET/C# Engineer – Capital Markets Security

A leading global bank is looking for a Senior Software Engineer in Toronto, responsible for delivering solutions for Global Wholesale Operations. The ideal candidate has 5+ years experience in .NET and C# development, expertise in Microsoft SQL Server, and familiarity with Capital Markets Technology. This role e ...

Frontend Engineer, Cases Product — Hybrid SF & Impact

A technology firm focused on legal tech located in Toronto is seeking a Backend Software Engineer to enhance software integrations and user experiences. Ideal candidates will have over 5 years of development experience, strong skills in API design, and a collaborative approach. Benefits include choice of insuran ...

Senior Front End Engineer – GenAI & UX Integration Contract

A leading software consulting firm is seeking a Software Engineer with a Front-End focus and GenAI integration experience in Toronto. The successful candidate will possess a minimum of 5 years in web application development, with expertise in REST APIs, Agile methodologies, and automated testing tools. This cont ...

Senior Backend Engineer: Automated Planning & Scheduling

A leading meal kit delivery service in Toronto is seeking a Senior Software Engineer to enhance their backend systems using Python and FastAPI. This role involves building the algorithmic engine for automated planning, supporting frontend applications, and contributing to an event-driven architecture. Candidates ...

Global Card Tech Architect & Transformation Leader

A major North American financial institution is seeking a Senior Distinguished Engineer in Toronto, Ontario. This role involves influencing technical direction, mentoring future engineering leaders, and driving improvements in software engineering practices. With a focus on leveraging cloud technologies and advo ...

Remote Cloud Python Engineer for Ubuntu Images

A leading open-source software provider is seeking a Software Engineer to develop and improve Ubuntu on public clouds. Candidates should have extensive experience in Python and a strong background in Linux. The role involves quality engineering, collaboration with global teams, and developing tools for a diverse ...

Remote Cloud Python Engineer for Ubuntu Images

A leading open source provider is hiring a Software Engineer to develop, test, and release improvements to Ubuntu on public clouds. Candidates should possess extensive Python experience, a Computer Science degree, and be passionate about the Ubuntu project. The role involves working with teams across the globe, ...

Applied AI Engineer: Build Scalable RAG Pipelines & Features

A tech startup specializing in AI is seeking a skilled software engineer to design and implement innovative AI-driven product features. The role involves collaborating with stakeholders from different departments to launch machine learning-powered applications. The ideal candidate should have significant experie ...

Senior Data Platform Engineer Scale TB Data & AI

A leading data platform company located in Toronto is seeking a Senior Software Engineer to contribute to their data storage solutions. The successful candidate will have over 6 years of experience in software development, especially with Java and Python, and a passion for complex data challenges. This role incl ...

Senior Backend Engineer, FinTech (Remote)

A payment technology leader is seeking a Senior Software Engineer to join their fully remote team. This role focuses primarily on backend development, maintaining and enhancing payment processing systems while collaborating with various teams. The ideal candidate should have over 5 years of software development ...

Senior Data Platform Engineer Scale TB Data & AI

A leading data platform company located in Toronto is seeking a Senior Software Engineer to contribute to their data storage solutions. The successful candidate will have over 6 years of experience in software development, especially with Java and Python, and a passion for complex data challenges. This role incl ...

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    Lead Software Engineer Pythonreact Jobs in Toronto Job Search Guide, Trends and Insights