141,970+ Lead Software Engineer Pythonreact Jobs in Toronto, Canada — Local Employers Hiring June 2026

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Senior AI Platform Engineer: AI First Systems & UX

A leading tech company in Toronto is seeking a Senior Software Engineer to build innovative AI-powered platform capabilities. This role is vital in designing user experiences and influencing product direction. The ideal candidate has over 6 years of software engineering expertise, strong proficiency in Python, a ...

Senior AI Platform Engineer: AI First Systems & UX

A leading tech company in Toronto is seeking a Senior Software Engineer to build innovative AI-powered platform capabilities. This role is vital in designing user experiences and influencing product direction. The ideal candidate has over 6 years of software engineering expertise, strong proficiency in Python, a ...

Director, US Retirement Technology (Toronto)

We are undertaking a multi-year transformation into a more digital, customer-centric organization. As a part of this transformation, we are building digital solutions based on the latest technologies. The customer is the focus of everything we do, and millions of customers rely on our products daily ...

Senior Java Developer

About BehavoxBehavox is a cloud-native AI company providing an integrated controls platform for global banks, asset managers, hedge funds, private equity firms, insurance businesses, and commodity firms. The platform unifies communications and trade surveillance, compliant archiving, policy management ...

Senior Electrical Engineer

About the Company Our company is at the forefront of innovative hydrogen, biogas and RNG projects, and we are looking for someone who possesses both technical expertise and a passion for sustainability. You will have the opportunity to lead and contribute to projects that make a tang ...

UX Engineer (Adobe Firefly)

1 week ago Be among the first 25 applicants Get AI-powered advice on this job and more exclusive features. This range is provided by Atimi Software. Your actual pay will be based on your skills and experience — talk with your recruiter to learn more. Base pay range CA$120,000.00/ ...

Intermediate Structural Engineer

Shellex Groupe Conseil is currently seeking an Intermediate Structural Engineer to join its team at the Toronto office . As a Structural Engineer within our engaged and collaborative team, you will contribute to large-scale projects, benefit from enriching professional development op ...

Senior UI Engineer Sledgehammer Games

Senior UI Engineer - Sledgehammer Games Requisition ID: R Job Opening Type: Backfill Headcount Your Mission Our engineering team in Toronto is growing. As a Senior UI Engineer you will actively code and engineer UI screens for various aspects of the game, using LUA scri ...

Intermediate Structural Engineer

Shellex Groupe Conseil is currently seeking an Intermediate Structural Engineer to join its team at the Toronto office . As a Structural Engineer within our engaged and collaborative team, you will contribute to large-scale projects, benefit from enriching professional development op ...

Senior UI Engineer Sledgehammer Games

Senior UI Engineer - Sledgehammer Games Requisition ID: R Job Opening Type: Backfill Headcount Your Mission Our engineering team in Toronto is growing. As a Senior UI Engineer you will actively code and engineer UI screens for various aspects of the game, using LUA scri ...

Senior Application Developer

About the Role We are looking for a versatile Senior Software Engineer to join our core team and help us build and maintain high‑quality software. The role reports to the Senior Manager and Squad Lead, DataXchange Squad. This hybrid position (2–3 days per week in the office) is based in Toronto, O ...

Senior Application Developer

About the Role We are looking for a versatile Senior Software Engineer to join our core team and help us build and maintain high‑quality software. The role reports to the Senior Manager and Squad Lead, DataXchange Squad. This hybrid position (2–3 days per week in the office) is based in Toronto, O ...

Senior Application Developer

About the Role We are looking for a versatile Senior Software Engineer to join our core team and help us build and maintain high‑quality software. The role reports to the Senior Manager and Squad Lead, DataXchange Squad. This hybrid position (2–3 days per week in the office) is based in Toronto, O ...

APPLICATION DEVELOPER

APPLICATION DEVELOPER – Atos About Atos Atos Group is a global leader in digital transformation with ~67,000 employees and annual revenue of ~€10 billion, operating in 61 countries under two brands – Atos for services and Eviden for products. European number one in cybersecurity, cloud and high‑performance compu ...

APPLICATION DEVELOPER

Select how often (in days) to receive an alert: Atos Group is a global leader in digital transformation with c. 67,000 employees and annual revenue of c. €10 billion, operating in 61 countries under two brands — Atos for services and Eviden for products. European number one in cybersecurity, cloud and high perfo ...

Senior Backend Ads Engineer HTS Media Services

About HTS Media HTS Media is Hopper’s advertising and media division, building an advertising platform for travel brands, destinations and suppliers.About the Role As a Senior Backend Engineer on the HTS Media team, you will be a core contributor to the engine that powers our entire advertising platfor ...

IT Infrastructure Solutions Engineer

Join to apply for theIT Infrastructure Solutions Engineerrole atCI Financial 17 hours ago Be among the first 25 applicants Join to apply for theIT Infrastructure Solutions Engineerrole atCI Financial Get AI-powered advice on this job and more exclusive ...

Staff Engineer

About this role Faire operates at serious scale — a global marketplace handling real money movement, sensitive business data, and the financial futures of hundreds of thousands of independent retailers and brands. Security here isn't a compliance checkbox. It's a core part of how we build, and how we grow.< ...

Application Release Engineer (Java)

Job Title: Application Release Engineer (Java) Job ID: Job Location: London, ON, Toronto, ON, Mississauga, ON, or Scarborough, ON (2 days/week in office) Job Travel Location(s): # Positions: 2 Employment Type: W2 Duration:Long Term # of Layers:0 < ...

Application Release Engineer (Java)

Job Title: Application Release Engineer (Java) Job ID: Job Location: London, ON, Toronto, ON, Mississauga, ON, or Scarborough, ON (2 days/week in office) Job Travel Location(s): # Positions: 2 Employment Type: W2 Duration:Long Term # of Layers:0 < ...

Intermediate – Senior Mechanical Engineer

Position Description Lead and contribute to a wide range of Mechanical Engineering projects while collaborating with multidisciplinary teams in a dynamic and growth-oriented environment. Apply advanced technical knowledge in the planning, design, and delivery of HVAC and Plumbing solution ...

Application Release Engineer (Java)

Job Title: Application Release Engineer (Java) Job ID: Job Location: London, ON, Toronto, ON, Mississauga, ON, or Scarborough, ON (2 days/week in office) Job Travel Location(s): # Positions: 2 Employment Type: W2 Duration:Long Term # of Layers:0 < ...

Intermediate – Senior Civil Engineer

Position DescriptionLead and contribute to a wide range of Civil Engineering projects while collaborating with multidisciplinary teams in a dynamic and growth-oriented environment. Apply advanced technical knowledge in the planning, design, and delivery of infrastructure projects, including site develo ...

Intermediate – Senior Municipal Engineer

Position Description Lead and contribute to a wide range of Municipal Engineering projects while collaborating with multidisciplinary teams in a dynamic and growth-oriented environment. Apply advanced technical knowledge in the planning, design, and delivery of infrastructure projects, including site development ...

Intermediate – Senior Electrical Engineer

Position DescriptionLead and contribute to a variety of Electrical Engineering projects while collaborating with multidisciplinary teams in a dynamic and growth-oriented environment. Apply advanced technical knowledge in the design, analysis, and implementation of electrical systems for commercial and ...

Intermediate – Senior Mechanical Engineer

Position Description Lead and contribute to a wide range of Mechanical Engineering projects while collaborating with multidisciplinary teams in a dynamic and growth-oriented environment. Apply advanced technical knowledge in the planning, design, and delivery of HVAC and Plumbing solution ...

Intermediate – Senior Mechanical Engineer

Position Description Lead and contribute to a wide range of Mechanical Engineering projects while collaborating with multidisciplinary teams in a dynamic and growth-oriented environment. Apply advanced technical knowledge in the planning, design, and delivery of HVAC and Plumbing solutions for commercial and ins ...

Implementation Engineer

(Originally posted under the title Forward Deployed Engineer)H2 Analytics is a mission-focused technology company redefining how intelligence specialists train and modernize. We partner with military, national security, law enforcement, and other mission-driven organizations to improve readiness at spe ...

Test Engineer: Quality & Automation Specialist

A growing software company in Toronto is looking for a quality assurance engineer to join its Testing Team. The role involves understanding client applications, implementing quality improvements, and conducting various types of tests. Candidates should have a strong background in application software development ...

Open Source LLM Inference & Model Optimization Engineer

A leading open-source software company in Toronto is seeking a Machine Learning Engineer to optimize models and collaborate with product teams. You will be responsible for developing algorithms and enhancing model performance. Ideal candidates will have strong backgrounds in machine learning, Python, and relevan ...

Open Source LLM Inference & Model Optimization Engineer

A leading open-source software company in Toronto is seeking a Machine Learning Engineer to optimize models and collaborate with product teams. You will be responsible for developing algorithms and enhancing model performance. Ideal candidates will have strong backgrounds in machine learning, Python, and relevan ...

Test Engineer: Quality & Automation Specialist

A growing software company in Toronto is looking for a quality assurance engineer to join its Testing Team. The role involves understanding client applications, implementing quality improvements, and conducting various types of tests. Candidates should have a strong background in application software development ...

Senior Java Engineer & Tech Leader Enterprise SaaS

A leading enterprise SaaS company in Ontario is looking for a Principal Software Engineer to develop scalable applications. The ideal candidate has over 12 years of software development experience, particularly in Java. Responsibilities include feature ownership, collaboration with product teams, and establishin ...

Test Engineer: Quality & Automation Specialist

A growing software company in Toronto is looking for a quality assurance engineer to join its Testing Team. The role involves understanding client applications, implementing quality improvements, and conducting various types of tests. Candidates should have a strong background in application software development ...

Go Engineer: Container Image Platform & CI/CD

A leading software company is seeking an experienced Software Engineer to develop high-quality container images for open-source applications. The role involves working with CI/CD processes, mentoring team members, and engaging with the open-source community. Candidates should have experience with Go and containe ...

Senior KDB+ Engineer for Financial Data Platforms

A global technology service provider is seeking a software engineer specializing in KDB+/Q in Toronto, Ontario. The ideal candidate will have over three years of experience and a strong academic background in a relevant field. Responsibilities include collaborating with clients, customizing KX product installati ...

Open Source LLM Inference & Model Optimization Engineer

A leading open-source software company in Toronto is seeking a Machine Learning Engineer to optimize models and collaborate with product teams. You will be responsible for developing algorithms and enhancing model performance. Ideal candidates will have strong backgrounds in machine learning, Python, and relevan ...

Senior Frontend Engineer Remote & Live Shopping Platform

A leading e-commerce platform is seeking a skilled Frontend Software Engineer in Toronto to build its live shopping experience. This role involves creating efficient code, mentoring team members, and leading complex software projects. The ideal candidate will have over 8 years of experience in front-end developm ...

Test Engineer: Quality & Automation Specialist

A growing software company in Toronto is looking for a quality assurance engineer to join its Testing Team. The role involves understanding client applications, implementing quality improvements, and conducting various types of tests. Candidates should have a strong background in application software development ...

GenAI ML Engineer — Production Scale AI for Finance

A leading financial services firm is seeking a Machine Learning Software Engineer to develop innovative AI solutions. The role includes designing and delivering ML projects, collaborating with researchers, and applying best practices in software development. Ideal candidates will have experience with Python, ML ...

Senior Electrical Engineer for Illumination Projects

Join Egis Canada as a Senior Electrical Engineer to lead the design and implementation of roadway lighting systems. Ensure project compliance and mentor the next generation of engineers.As the Lead Electrical Engineer (Illumination), you will be responsible for overseeing complex lighting designs for i ...

WSP Senior Engineer for Electrical Systems

Become a key player in the Centre Block Rehabilitation Project in Ottawa as a Senior Electrical Engineer with WSP. Innovate electrical systems for national heritage buildings while guiding project success.This role at WSP calls for a Senior Electrical Engineer who possesses a Professional Engineer desi ...

Senior Full Stack Engineer

Job Description Senior Full Stack Engineer – Third‑Party SaaS Solutions team at RBC. Opportunity The Third‑Party SaaS Solutions team strategically partners with internal teams and critical third‑party application vendors to deliver key client and employee services using SaaS. In ...

Senior Full Stack Engineer

Job Description Senior Full Stack Engineer – Third‑Party SaaS Solutions team at RBC. Opportunity The Third‑Party SaaS Solutions team strategically partners with internal teams and critical third‑party application vendors to deliver key client and employee services using SaaS. In ...

Senior Full Stack Engineer

Job Description Senior Full Stack Engineer – Third‑Party SaaS Solutions team at RBC.Opportunity The Third‑Party SaaS Solutions team strategically partners with internal teams and critical third‑party application vendors to deliver key client and employee services using SaaS. In the past, many of these ...

Senior Full Stack Engineer

Job Description Senior Full Stack Engineer – Third‑Party SaaS Solutions team at RBC. Opportunity The Third‑Party SaaS Solutions team strategically partners with internal teams and critical third‑party application vendors to deliver key client and employee services using SaaS. In ...

AI SDLC Automation Specialist & Coach

Overview 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 revolutionizing the software development lifecycle by leveraging the power of GenAI and agentic development tools like Cursor an ...

Senior Electrical Engineer

About the Company Our company is at the forefront of innovative hydrogen, biogas and RNG projects, and we are looking for someone who possesses both technical expertise and a passion for sustainability. You will have the opportunity to lead and contribute to projects that m ...

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