599,094+ Lead Software Engineer Pythonreact Jobs in Canada — Top Companies Hiring June 2026

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Senior Software Engineer, Backend (Merchant Advocacy)

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. The Merchant & Partner Lifecycle (M&PL) team is at the forefront of Affirm’s architectural transformation. We are addressing cr ...

Senior Back End Software Engineer (Canada)

About The Role We are looking for an experienced back end software engineer to join our team. As an experienced team member, you will have a broad ownership and impact on the technology, product, and our culture. You will work alongside a first-rate engineering team to implement exciting new feat ...

Senior Software Engineer, Backend (Continuous Delivery)

Overview 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. The Continuous Delivery team works within Developer Productivity to build and improve platforms, workflows, and gua ...

Senior Engineer for Embedded Robotics Software

Forge the future of humanoid robots as a strategic Senior Embedded Software Engineer. Create and refine embedded systems software with a focus on reliability and real-time operations in robotics.This pivotal role requires a deep understanding of embedded systems and collaboration among engineers. You will de ...

Senior Software Engineer, Cloud IaC & Automation

A leading fintech company is seeking a Senior Software Engineer on the Infrastructure Engineering team to innovate and enhance cloud-based solutions. You will design and optimize infrastructure tooling on AWS, focusing on safety and compliance. The ideal candidate has a Bachelor's degree in Computer Science and ...

Senior Software Engineer — Tech Leader & Impact

A dynamic fintech company based in Canada seeks a Lead Software Engineer to drive technical excellence in their platform. This role emphasizes designing scalable microservices and leading cross-functional initiatives. Candidates should have over 8 years of experience in software engineering, proficiency in Golan ...

Senior Software Engineer — Tech Leader & Impact

A dynamic fintech company based in Canada seeks a Lead Software Engineer to drive technical excellence in their platform. This role emphasizes designing scalable microservices and leading cross-functional initiatives. Candidates should have over 8 years of experience in software engineering, proficiency in Golan ...

Senior Software Engineer, Backend (Merchant Advocacy)

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. The Merchant & Partner Lifecycle (M&PL) team is at the forefront of Affirm’s architectural transformation. We are addressing cr ...

Senior Software Engineer, Backend (Continuous Delivery)

Overview 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. The Continuous Delivery team works within Developer Productivity to build and improve platforms, workflows, and gua ...

Software Engineer for WaveLogic Test Platform

This is a primary processing purpose. This is a secondary processing purpose. They gather information about your interactions on the site, such as which pages you visit frequently, how long you stay, and the links or buttons you click. They help us record any difficulties you have ...

Senior Software Engineer, Backend (Growth Platform)

Senior Software Engineer, Backend (Growth Platform) 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. The Engineering team builds systems that power our mission. We b ...

Senior Software Engineer, Backend (Growth Platform)

Senior Software Engineer, Backend (Growth Platform) 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. The Engineering team builds systems that power our mission. We b ...

Senior Back End Software Engineer (Canada)

About The Role We are looking for an experienced back end software engineer to join our team. As an experienced team member, you will have a broad ownership and impact on the technology, product, and our culture. You will work alongside a first-rate engineering team to implement exciting new feat ...

Cryptography & Key Management Software Engineer II

Un établissement financier de premier plan basé à Toronto recherche un ingénieur logiciel talentueux, spécialisé en cryptographie et sécurité de l'information. Le candidat idéal aura une solide expérience en développement d'API utilisant Java et Python, ainsi qu'une connaissance des concepts de cryptographie. Vo ...

Compiler Development Engineer for Quantum Software

Advance your career as a Compiler Development Engineer, addressing software challenges in quantum computing applications. Collaborate with a scientific team to enhance our unique compiler pipeline and features.Candidates should possess a Ph.D. in Computer Science or Physics, focusing on quantum computation o ...

Compiler Development Engineer for Quantum Software

Advance your career as a Compiler Development Engineer, addressing software challenges in quantum computing applications. Collaborate with a scientific team to enhance our unique compiler pipeline and features.Candidates should possess a Ph.D. in Computer Science or Physics, focusing on quantum computation o ...

Compiler Development Engineer for Quantum Software

Advance your career as a Compiler Development Engineer, addressing software challenges in quantum computing applications. Collaborate with a scientific team to enhance our unique compiler pipeline and features.Candidates should possess a Ph.D. in Computer Science or Physics, focusing on quantum computation o ...

Compiler Development Engineer for Quantum Software

Advance your career as a Compiler Development Engineer, addressing software challenges in quantum computing applications. Collaborate with a scientific team to enhance our unique compiler pipeline and features.Candidates should possess a Ph.D. in Computer Science or Physics, focusing on quantum computation o ...

Senior Dynamics 365 Software Engineer Hybrid

A leading tech services firm in Toronto is looking for a Senior Software Developer to design and implement solutions using Microsoft Dynamics 365. The ideal candidate has extensive experience in C# and ASP.NET, working with enterprise applications in a hybrid model. Responsibilities include developing customized ...

Senior Software Engineer (Full Stack + Data)

Senior Software Engineer (Full Stack + Data) Department: Tech Employment Type: Permanent - Full Time Location: Vancouver Compensation: $155,000 - $172,000 / year Description Hi there, we’re Article. Since 2013, we have be ...

PON Software Engineer Role Ciena Ottawa

Join Ciena in Ottawa as a PON Software Engineer, emphasizing innovation in hybrid environments. This role focuses on next-gen software solutions for Passive Optical Networking products.You will contribute to developing industry-leading management software for PON technologies at Ciena. With expertise in C, P ...

Compiler Development Engineer for Quantum Software

Advance your career as a Compiler Development Engineer, addressing software challenges in quantum computing applications. Collaborate with a scientific team to enhance our unique compiler pipeline and features.Candidates should possess a Ph.D. in Computer Science or Physics, focusing on quantum computation o ...

Senior Software Engineer, Backend (Blockchain Platform)

Senior Software Engineer, Backend (Blockchain Platform) Coinbase 21 July 2025 Remote Remote - Canada Ready to be pushed beyond what you think you’re capable of?At Coinbase, our mission is to increase economic freedom in the world. It’s a massive, ambitious opportunity that demands t ...

Senior Back End Software Engineer (Canada)

About The Role We are looking for an experienced back end software engineer to join our team. As an experienced team member, you will have a broad ownership and impact on the technology, product, and our culture. You will work alongside a first-rate engineering team to implement exciting new feat ...

Senior Software Engineer, Backend (Continuous Delivery)

Overview 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. The Continuous Delivery team works within Developer Productivity to build and improve platforms, workflows, and gua ...

Senior Software Engineer (Full Stack, Product)

Trajekt Sports is building the next generation of baseball training technology through a combination of software engineering, robotics, and data science. Our flagship product, the Trajekt Arc , allows hitters to train against highly accurate recreations of real pitchers. By combining high-fi ...

Software Engineer Python Cloud graduate level

Canonical Canonical is a leading provider of open source software and operating systems to the global enterprise and technology markets. Our platform, Ubuntu, is widely used in breakthrough enterprise initiatives such as public cloud, data science, AI, engineering innovation, and IoT. Our custome ...

Senior Software Engineer, Backend (Continuous Delivery)

Overview 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. The Continuous Delivery team works within Developer Productivity to build and improve platforms, workflows, and gua ...

Senior Embedded Software Engineer, BMS Drivers

Role Summary In this role, you will be a member of the Platform Software team, responsible for architecting, implementing, and integrating battery management platform software across Rivian’s control boards. The platform includes drivers, operating systems, middleware, and application frameworks ...

Senior Software Engineer, Cloud IaC & Automation

A leading fintech company is seeking a Senior Software Engineer on the Infrastructure Engineering team to innovate and enhance cloud-based solutions. You will design and optimize infrastructure tooling on AWS, focusing on safety and compliance. The ideal candidate has a Bachelor's degree in Computer Science and ...

Senior Software Engineer – Concurrency & UI (TypeScript)

A leading software company in Ontario seeks a Software Developer to join their Agile team working on the Concurrency project within Fusion. The role involves implementing features, maintaining code, and collaborating with remote teams. Ideal candidates should have over 5 years of experience in software developme ...

Senior Back End Software Engineer (Canada)

About The Role We are looking for an experienced back end software engineer to join our team. As an experienced team member, you will have a broad ownership and impact on the technology, product, and our culture. You will work alongside a first-rate engineering team to implement exciting new feat ...

Graduate HPC Software Engineer — Rust + Python

A systematic proprietary trading firm in Toronto is seeking a Graduate Software Engineer to design and implement high-frequency trading systems. The role is ideal for recent graduates passionate about programming in Rust and Python and interested in solving complex computational problems. With a competitive sala ...

Senior Software Engineer: Health Tech Platform

A leading healthcare technology company in Toronto is seeking experienced engineers to join their team. The role involves building scalable solutions for health data storage and processing. Ideal candidates will have over 6 years of software development experience and strong coding skills in languages like Go or ...

Senior Software Engineer, Backend (Growth Platform)

Senior Software Engineer, Backend (Growth Platform) 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. The Engineering team builds systems that power our mission. We b ...

Senior Software Engineer, Backend (Growth Platform)

Senior Software Engineer, Backend (Growth Platform) 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. About The Team The Growth Platform Engineering team build ...

Senior Back End Software Engineer (Canada)

About The Role We are looking for an experienced back end software engineer to join our team. As an experienced team member, you will have a broad ownership and impact on the technology, product, and our culture. You will work alongside a first-rate engineering team to implement exciting new feat ...

Distributed Systems Software Engineer, Python / Go

Distributed Systems Software Engineer, Python / Go Join to apply for the Distributed Systems Software Engineer, Python / Go role at Canonical Distributed Systems Software Engineer, Python / Go 3 months ago Be among the first 25 applicants Joi ...

Dialpad Co op: Android Software Engineer

Advance your software engineering skills with Dialpad’s Co-op Program in Vancouver. This hybrid opportunity focuses on Android development, providing real-world experience in a dynamic team setting.In this Co-op Software Engineer role, you’ll collaborate with experienced mentors and contribute to Dialpad’s i ...

Staff Software Engineer ML hardware modelling

DescriptionOur client builds chips for artificial intelligence computing. Our architecture leverages unique properties of light to enable fast and efficient inference and training engines. If you're a collaborative engineer or scientist who has a passion for innovation, solving challenging technical pr ...

Software Engineer II, Backend (Identity Decisioning)

Software Engineer II, Backend (Identity Decisioning) Affirm is reinventing credit to make it more honest and friendly, giving consumers the flexibility to buy now and pay later without hidden fees or compounding interest. Identity Engineering owns the systems responsible for onboarding all consumers and managing ...

Senior Software Engineer: Scale Core Systems

A high-growth SaaS company in Vancouver seeks a Software Development Engineer to architect and scale core systems. The ideal candidate will have expert-level skills in modern typesafe languages such as Kotlin, TypeScript, or Python, and experience with microservices architecture and APIs. You will work closely w ...

Senior Software Engineer, Backend (Growth Platform)

Senior Software Engineer, Backend (Growth Platform) 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.The Engineering team builds systems that power our mission. We build reliable, ...

Senior EOS Software Engineer Networking & Cloud

A leading computer networking company is seeking a Senior/Lead Software Engineer to join their EOS software development team in Vancouver, BC. This role involves writing specifications, developing solutions to networking problems, and mentoring junior engineers. Candidates should have a strong background in C, C ...

Ingénieur ou ingénieure logiciels/Software Engineer

Aviya Aerospace Systems est un chef de file des services et des solutions d’ingénierie pour applications essentielles destinées à l’aérospatiale et à la défense. Aviya fournit des compétences spécialisées en gestion de programmes, en ingénierie des systèmes, du matériel et du logiciel, et en génie mécanique à de ...

Embedded Linux Driver & Firmware Software Engineer

A leading technology firm in digital imaging is seeking a Software Developer to join their BIJ team in Markham, Ontario. The role focuses on driver customization for Business Inkjet printers and document scanners, requiring strong development skills across Windows and Linux environments. Ideal candidates possess ...

Senior Software Engineer, AI Security & DevSecOps

A cutting-edge AI company in Toronto is seeking a Senior Software Engineer focusing on security. You will be responsible for developing and implementing security features, ensuring safe user authentication, and managing sensitive data. Ideal candidates have over 5 years of experience in secure software developme ...

Senior Full Stack Product Software Engineer

Dropbox is a Virtual First company. For this role, we are currently only authorized to hire candidates from the following provinces: Alberta, British Columbia, Ontario, and Saskatchewan. OverviewDropbox isn’t just a workplace—it’s a living lab for more enlightened ways of working. We're a global commun ...

Staff Full Stack Software Engineer, Products

Staff Full Stack Software Engineer, ProductsStaff Full Stack Software Engineer, Products3 weeks ago Be among the first 25 applicants We’re Quandri, our mission is to unlock the world’s insurance data so brokerages and agencies can best serve their clients. Our Renewal Intelligence Platform is ...

Senior Software Engineer – IDE & Desktop Applications

Senior Software Engineer – IDE & Desktop ApplicationsAt Cognichip, we are building the next-generation IDE to empower semiconductor design engineers with a 10x productivity boost through AI-native workflows and seamless integration with high-performance simulation engines. We are seeking an experienced ...

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