680,142+ Lead Software Engineer Pythonreact Jobs in Canada — Top Companies Hiring June 2026

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Structural Lead Engineer Mining and Metals

Fluor is one of Canada's top employers and is recognized globally as a leader in the Engineering, Procurement, Construction, Fabrication, and Maintenance industry. Our focus on innovation and providing cost-effective technology-based solutions is second to none. As we look to the future, we need creative, ambiti ...

Technical Lead, Drinking Water Treatment Engineer

Company DescriptionWork with Us. Change the World. At AECOM, we're delivering a better world. Whether improving your commute, keeping the lights on, providing access to clean water, or transforming skylines, our work helps people and communities thrive. We are the world's trust ...

Technical Lead, Drinking Water Treatment Engineer

Company DescriptionWork with Us. Change the World. At AECOM, we're delivering a better world. Whether improving your commute, keeping the lights on, providing access to clean water, or transforming skylines, our work helps people and communities thrive. We are the world's trust ...

Lead Firmware Engineer, Power Electronics & Embedded

A leader in power conversion solutions is looking for a Senior Firmware Engineer in Bedford, Nova Scotia. The role involves designing and developing firmware for power conversion equipment and leading a team. Candidates should have a bachelor’s degree in electrical or computer engineering, with at least seven ye ...

Lead Electrical Engineer for Mega Projects

A global professional services company in Canada is seeking a Principal Electrical Engineer to provide engineering services on large projects. You will manage project requirements, ensure quality standards are met, and offer technical support throughout project phases. The ideal candidate will possess excellent ...

Senior Firmware Engineer Power Electronics Lead

A power conversion equipment manufacturer located in Bedford, NS, is seeking a Senior Firmware Engineer. This role involves designing and implementing firmware for power conversion equipment, with responsibilities including leading the Firmware Engineering team and collaborating on embedded systems. Candidates s ...

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 Mobile & Windows Engineer – Lead & Architect

A global gaming support company in Canada seeks an experienced developer with a strong background in mobile and Windows application development. The ideal candidate will have over 4 years of experience, proficient in Swift, Kotlin, and React Native, and capable of leading development teams while collaborating cl ...

Lead Mobile Engineer Opportunity at Jobber

Lead with expertise as a Senior Software Engineer at Jobber, focusing on mobile app development. Join a passionate team, enhancing your skills while mentoring the next generation of engineers.In this pivotal role with Jobber's McMobile team, you'll collaborate in crafting advanced mobile solutions and ensuri ...

Lead Marine Safety Inspector & Engineer – Inventory

A government agency is hiring a Senior Marine Safety Inspector responsible for ensuring regulatory compliance and seaworthiness of ships. This role involves investigating incidents and managing inspections. Candidates must have relevant educational qualifications, five years of experience in marine operations, a ...

Senior Waste & Groundwater Engineer — Lead Compliance

A leading engineering firm in Ontario is looking for an Environmental Engineer who will work on complex groundwater challenges and advance environmental science through collaborative projects. The role requires 7-15 years of environmental consulting experience and a degree in civil or related engineering. You'll ...

Lead Engineer for Electromagnetic Power Studies

Spearhead Electromagnetic Transient analyses in a key engineering role. Collaborate on advancements in power systems, focusing on simulation and design of HVDC technologies.This role involves leading a talented team in executing detailed EMT studies that cater to diverse power systems. You will leverage your ...

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 ...

C++ Software Engineer: Build Low Latency Trading Systems

A leading capital markets firm in Ontario is seeking a driven C++ Software Engineer to design, build, and maintain high-performance trading systems. This mid-senior level role emphasizes solving complex challenges with clean code and collaboration with traders. Applicants should have a deep knowledge of C++, and ...

Software Engineer (Full Stack Node JS / React JS)

Software Engineer (Full Stack - Node JS / React JS) Knit strive toAim Big so that our teams canBe Great and as a company we canBeloved by Customers . We empower our customers with a simple and easy to use platform weaving payments, localized compliance and HR into an all-in-on ...

Software Engineer – Code Review (Rust) | $85/hr Remote

Join to apply for the Software Engineer – Code Review (Rust) | $85/hr Remote role at Crossing Hurdles Join to apply for the Software Engineer – Code Review (Rust) | $85/hr Remote role at Crossing Hurdles This range is provided by Crossing Hurdles. Your actual ...

Entry Level Full Stack Engineer: Build Impactful Software

A leading automation solutions provider in Canada is looking for a Software Developer to create and oversee efficient APIs, enhancing their automation platform used by global companies. The ideal candidate should have a Bachelor's in Computer Science and strong experience with Java and cloud technologies. Your r ...

Senior Software Engineer AI/NLP Platform, Stock Options

A forward-thinking technology company is seeking a highly skilled Senior Software Developer to drive software solutions. The role involves collaborating with cross-functional teams, designing and developing applications, and mentoring junior developers. Ideal candidates will have over 5 years of experience and p ...

Skilled Senior Software Engineer for Feature Store Development

Drive advanced feature store initiatives as a Senior Principal Software Engineer. Oversee technical direction while collaborating with enterprise clients to ensure top-tier performance and reliability.As a senior leader, you will be responsible for the architectural choices of a key product that supports maj ...

Innovative Software Engineer for Remote Cloud Solutions Development

Drive network security innovation as a Software Engineer on our remote team. Develop features for cloud-hosted infrastructures while enhancing security and scalability in a collaborative setting.This engineering role focuses on software development in Go and intricate Kubernetes ecosystems. You'll manage ful ...

Sr. Software Engineer Full Stack (.NET, React) | Canada

Sr. Software Engineer - Full Stack (.NET, React) | Canada The Sr. Software Development Engineer uses specialized depth and experience to oversee the writing and modification of complex software application programs. This role leads work groups responsible for software development, design, and qua ...

Senior Software Engineer Build COS & AI Driven Systems

A leading e-commerce furniture brand is looking for a Senior Software Engineer to design and develop systems that enhance the post-purchase journey. In this role, you will build features for the Cozey Operating System, create innovative in-house tools, and streamline warehouse management through AI. Passion for ...

Senior Software Engineer — Remote, Build Cloud Cost Solutions

A leading cloud technology company is seeking a Senior Software Engineer to architect and develop new features for SELECT. The role involves collaborating with founders and engineers to create cost management tools and improve application performance. Candidates should have strong skills in Typescript, Python, a ...

Remote Senior API Software Engineer for Insurance SaaS

A leading Insurtech company in Canada is seeking a Software Engineer/Sr Software Engineer focused on API development. The ideal candidate will have over 5 years of experience with .NET/C#, TypeScript/JavaScript, and cloud environments. Key responsibilities include delivering high-quality software, participating ...

Staff Software Engineer I – Control Plane Core Infrastructure

About the Role We’re looking for a Staff Software Engineer I to lead the design and delivery of core control‑plane infrastructure that powers Confluent Cloud. In this role you will own highly technical projects across multiple services and teams, shaping the architecture and reliability of our cl ...

Senior Staff Software Engineer, Consumer Engineering (Web Infra)

Senior Staff Software Engineer, Consumer Engineering (Web Infra) Remote Canada Affirm is reinventing credit to make it more honest and friendly, giving consumers the flexibility to buy now and pay later without any hidden fees or compounding interest. Affirm is looking for a Senio ...

Staff Software Engineer, ML Platform Remote Ontario, Canada

Afresh is the leading AI company in fresh food—partnering with grocers like Albertsons, Wakefern, Meijer, and Stater Bros to order billions of dollars of fresh food in over 12,000 grocery departments nationwide. Following record-breaking 70% growth in 2025, we’ve expanded our platform to cover all f ...

Principal Software Engineer in Cutting Edge Security Engineering

Transform digital protection as a Principal Software Engineer dedicated to security engineering. Join a remote-first role focused on backend services and critical integrations for advanced detection workflows.This Principal-level position emphasizes ownership of backend services from architecture to implemen ...

Innovative Associate Software Engineer for Document SDK Enhancements

Shape the future of document technology as an Associate Software Engineer. Dive into advanced web technologies while building impactful features for a document SDK used by millions daily.In this role, you will collaborate closely with UI/UX designers and senior engineers to transform design specs into functi ...

Senior Roblox Software Engineer — Live Games & Scale (Remote)

A leading gaming company is seeking a Software Engineer to contribute to Roblox games. This role involves writing clean Roblox Lua code, collaborating with teams to enhance player experiences, and optimizing live game systems. Candidates should have 2+ years of Roblox development experience and a strong foundati ...

Staff Software Engineer Grafana Cloud k6 | Canada | Remote

Grafana Labs is a remote-first, open-source powerhouse. There are more than 20M users of Grafana, the open source visualization tool, around the globe, monitoring everything from beehives to climate change in the Alps. The instantly recognizable dashboards have been spotted everywhere from a NASA launch an ...

Real Time C/C++ Software Engineer Maritime Systems

A leading maritime technology company in Canada seeks a Software Engineer to design and maintain software products. Responsibilities include following best practices in software development, participating in peer reviews, and providing technical support to multidisciplinary teams. The ideal candidate has a degre ...

Senior Software Engineer JVM Language Clients Canada (remote)

Senior Software Engineer - JVM Language Clients About ClickHouse Recognized on the 2025 Forbes Cloud 100 list, ClickHouse is one of the most innovative and fast-growing private cloud companies. With more than 3,000 customers and ARR that has grown over 250 percent year over year, ClickH ...

Senior Software Engineer, Full Stack | Product Engineering Canada

Build a Safer World. TRM Labs provides AI-powered intelligence solutions that help public and private sector agencies investigate and disrupt crime. TRM's platforms enable investigators to trace illicit activity, build cases, and construct operating pictures of threat networks. Leading ag ...

Senior Software Engineer FinTech Scale Up (Remote Canada)

A leading growth-oriented fintech company is looking for Senior / Staff Software Engineers to join their remote team across Canada. As part of a dynamic research & development function, you will work on innovative projects within a technology stack that includes TypeScript, Node.js, and more. The role involves b ...

Senior Software Engineer Rust/TypeScript Platform & Open Source

A leading data platform company in Canada is seeking a Senior Engineer to build and maintain their Boréal hosting platform and Moose open-source project. This role offers the chance to collaborate closely with product and design teams in a flexible, remote-first environment. Ideal candidates have robust experien ...

Senior Software Engineer – TS/Node.js, Global Scale & Impact

A leading technology firm in Canada seeks a mid-senior level Tech Talent Specialist to drive the development of tools aimed at reducing the carbon footprint of digital ads. Ideal candidates will be proficient in TypeScript and Node.js, with a strong understanding of CI/CD processes and cloud infrastructure. This ...

Full Stack Software Engineer AI and Internal Tools

Full Stack Software Engineer – AI and Internal Tools Engineering • Canada – Pacific Time Zone – Remote • Full‑time • Intermediate About the Company Push is an all‑in‑one platform that helps businesses grow by simplifying HR, payroll, time tracking, and scheduling. Our purpose is ...

Android Mobile Software Engineer | $200/hr Remote | Mercor

Android Mobile Software Engineer | $200/hr Remote | Mercor Base pay range $200.00/hr - $200.00/hr Organization: Mercor Position: Android Mobile Software Engineer (Kotlin) Referral Partner: Crossing Hurdles Type: Hourly Cont ...

Staff Software Engineer: AI Powered Data Platform Architect

A leading market intelligence firm in Canada is seeking an experienced individual to own the architecture of a large-scale data extraction platform. The role involves designing high-reliability systems and mentoring engineers. Candidates should possess over 10 years of experience in building large-scale producti ...

Remote Software Engineer (Go + React) Testing Driven & Agile

A tech-focused insurance firm in Canada is seeking a Software Engineer (Golang, React) to join their remote Personal Lines Insurance team. This role emphasizes test automation and collaboration in an Agile environment, requiring 3+ years of software engineering experience and knowledge of modern testing strategi ...

Remote Senior Software Engineer, AI Powered Legal Tools

A leading AI suite for legal professionals is seeking a Software Engineer to work in a remote setting. The candidate will design and implement features using the latest technology and collaborate with product management. Ideal for someone with 5+ years of experience in software development and excellent communic ...

Senior Software Test Engineer Automation & CI/CD (Remote)

A technology company in Canada is seeking a passionate Software Developer Engineer in Test to enhance software quality through testing. You will work with cross-functional teams, develop automated test scripts, and mentor junior members. The ideal candidate has 8-10 years of experience and skills in relevant pro ...

Senior Software Engineer: Public Safety CAD & 911 Systems

A leading technology service provider is looking for a Senior Software Developer with expertise in C# and SQL to support public safety applications in Ontario. The role involves code enhancements, testing, and documentation for critical dispatch technologies. A minimum of 8 years of experience is required, parti ...

Senior Software Engineer — Diagnostics Team Remote, Ontario, Canada

Senior Software Engineer — Diagnostics Team Apply ALERT: Unity has received reports of scams where individuals purporting to be Unity HR representatives conduct bogus employment interviews via email or text, and then request payment as a condition for receiving an offer of employment. Ple ...

Staff Software Engineer AI Website Builder CANADA (Remote)

The Role As a Staff Software Engineer , you will be a key contributor on a cross-functional team, building the foundation of our AI-first platform. You’ll take ownership of major features and services, drive meaningful improvements to our architecture, and collaborate closely with product, ...

Senior Software Engineer II AI Native, backend Growth

About the Job Life360 is hiring an AI-Native Backend Focused Engineer — a senior engineer who doesn’t just use AI tools, but thinks natively in them. You’ll be central to how the Growth team builds its products, develops its services, and how we use AI for development in the future. You’l ...

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