587,252+ Senior Fullstack Software Developer Pythonreact Jobs in Canada — Top Companies Hiring July 2026

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Senior Software Engineer Remote

Optum is a global organization that delivers care, aided by technology to help millions of people live healthier lives. The work you do with our team will directly improve health outcomes by connecting people with the care, pharmacy benefits, data and resources they need to feel their best. Here, you will ...

Senior Software Engineer Platform

Secure Every Identity, from AI to Human Identity is the key to unlocking the potential of AI. Okta secures AI by building the trusted, neutral infrastructure that enables organizations to safely embrace this new era. This work requires a relentless drive to solve complex challenges with real‑world stakes. We are ...

Intermediate/Senior Software Engineer

OverviewUnleash the Power of Multi-Mission Excellence: Safeguarding the Seas for the World's Navies. Step into a world where cutting‑edge technology meets unparalleled expertise. Ultra Maritime pioneers delivering multi‑mission solutions that protect and empower the naval forces worldwide. With our ext ...

Senior Software Engineer, Backend

About us Common Room is the customer intelligence platform that captures every buying signal, giving companies superpowers with AI enrichment and automation to reach the right person with the right context at the right time. Despite an explosion of buyer signal ...

Senior Software Engineer, Android

Who We Are Babylist is the trusted platform for millions of growing families. For over a decade, Babylist has been the technology solution for expecting parents and the community that supports them, expanding from baby registry into a full-service platform that helps parents make deci ...

Senior Software Engineer (Hybrid)

At Homebase, you’ll join a team that’s bold, fast-moving, and obsessed with helping small businesses thrive. The Hiring Assistant team is reimagining hiring through AI—from candidate discovery to screening to onboarding. Key Responsibilities Help lead the design and development of s ...

Senior Software Engineer II

What we’re looking for The Machine Learning Platform team (MLP) is seeking a Senior Software Engineer II to design and implement secure, highly scalable, and high-performance pipelines that govern the end-to-end lifecycle of ML models. You will work at the intersection of Data Sci ...

Senior Software Engineer I

SurveyMonkey is the world’s most popular platform for surveys and forms, built for business—loved by users. We combine powerful capabilities with intuitive design, effectively serving every use case, from customer experience to employee engagement, market research to payment and registration forms. ...

Senior Software Engineer Landmark

We are looking for the right people — people who want to innovate, achieve, grow and lead. We attract and retain the best talent by investing in our employees and empowering them to develop themselves and their careers. Experience the challenges, rewards and opportunity of working for one of the world’s largest ...

Senior Software Engineer, AI

Klue Engineering is hiring! We're looking for a Senior Machine Learning Engineer to join our team in Toronto, focusing on building and optimizing state-of-the-art LLM-powered agents that can reason, plan and automate workflows for users. You will be leading the design and development of s ...

Software Development Senior Professional

Brightstar is an innovative, forward-thinking global leader in lottery that builds on our renowned expertise in delivering secure technology and producing reliable, comprehensive solutions for our customers. As a premier pure play global lottery company, our best-in-class lotter ...

Senior Software Engineer Python

As a leading, global financial information services provider, Fitch Group delivers vital credit and risk insights, robust data, and dynamic tools to champion more efficient, transparent financial markets. With over 100 years of experience and colleagues in over 30 countries, Fitch Group’s culture of credibili ...

Senior Software Architect(MarTech)

Is this role right for you? In this role, you will:• Define and maintain the target architecture and technical roadmap for the Digital Commerce, Communications, and Personalization domains • Provide hands-on architectural guidance across multiple cross-functional engineering squads • Col ...

Senior Software Engineer 1

About UsLet’s go on an adventure together! Hey there, we’re G Adventures. We’re one of the world’s leading small group travel companies, and we’ve always believed that travel isn’t just about where you go — it’s about how it changes you.For the last 35 years, we’ve set out to do th ...

Senior Software Architect(MarTech)

Senior Software Architect(MarTech) Requisition ID: 232268 Join a purpose driven winning team, committed to results, in an inclusive and high-performing culture. Scotiabank’s Canadian Digital Engineering organization is building the next generation of customer experiences across our web ...

Software Engineer Senior Associate

Software Engineer Senior Associate Requisition ID: 255715 Join a purpose driven winning team, committed to results, in an inclusive and high-performing culture. Scotia Tech is the engineering and technology engine of Scotiabank. We design, build, and operate the digital platforms, appl ...

Senior Engineer, Software Test

Senior Engineer, Software Test Full Time Montréal, QC, CA 5 days ago Requisition ID: 1077 Salary Range: CA$115,000.00 To CA$140,000.00 Annually JOB SUMMARY The Senior Engineer, Software Test will be responsible for conducting testing of software for a robotic sur ...

Senior Backend Software Engineer

Our Story So Far Since our founding in 2019, Pigment has become one of the fastest-growing SaaS companies in the world today. Our product, a highly efficient Enterprise Performance Management (EPM) platform is helping companies achieve their financial goals by quickly responding to dynamic factor ...

Senior Software AI Engineer

**Job Requisition ID #** 26WD96628 **Position Overview** Autodesk is evolving its productivity engineering ecosystem by embedding AI-powered engineering into its platform to improve developer productivity, operational excellence, and platform initiatives. We are looking for a Senior AI ...

Senior Software QA Specialist

**Job Requisition ID #** 26WD97063 **Position Overview** At Autodesk, we empower those who imagine, design, and create a better world for everyone. Our customers build the tallest skyscrapers, develop sustainable housing, launch rockets, and invent solutions for global challenges. Join ...

Senior Software Engineer (Infrastructure)

About Motion 💡Motion is building the command center for creative strategists: an AI-native platform that bridges the gap between performance marketers and creative teams, so they can uncover what’s working, what’s not, and ship more winning ads acr ...

Senior Mobile Software Engineer

About the RoleAs a Senior Mobile Software Engineer within our US Retirement technology organization, you will design, build, and deliver high-quality mobile and backend solutions for our Retirement customers. Working across the full stack, you will develop React Native applications and Ne ...

Senior Software Engineer II

BASIC FUNCTIONS: This position performs complex research, design, and software development assignments within a software functional area or product line, and provides direct input to project plans, schedules, and methodology in the development of cross-functional software products. This position performs soft ...

Senior AI Software Engineer

We are seeking a collaborative and driven Senior AI Software Engineer to join our team. As a core contributor to our platform, you will help build and scale the intelligent services powering our autonomous visual asset editing pipeline. You’ll work closely with a talented team to develop event-driven serverless ...

Senior Software Engineer (Python)

Senior Software Engineer – Secure AI Platform (Vancouver, On-Site) The Company: Varonis (Nasdaq: VRNS) is a leader in data security, fighting a different battle than conventional cybersecurity companies. Our cloud-native Data Security Platform continuously discovers and classifies critical data, re ...

Senior Software Engineer Backend

**Overview** At the core of Microsoft Ads is a mission-critical, high-throughput real-time bidding (RTB) platform. It processes millions of auction requests per second, executes complex auction logic under strict latency constraints, and directly impacts revenue, win rate, partner satisfaction, and plat ...

Senior Simulator Software Specialist

Senior Simulator Software Specialist Location:Bowmanville, ON, CA, L1C 3Z8 Req ID: 57283 **Status:** Permanent Full Time **Education Level:** Four-year university degree **Base Location:** Bowmanville, ON **Shift:** Days **Travel:** 10% <br ...

Senior Software Engineer (Product)

We’re building applied AI systems for high‑stakes, real‑world decisions . Our platform ingests and reasons over large, messy data to surface evidence with hard constraints around fairness, auditability, and low bias. The single gnarliest, most impact‑heavy place this problem shows up is in insurance ...

Senior Software Engineer Platform

Secure Every Identity, from AI to Human Identity is the key to unlocking the potential of AI. Okta secures AI by building the trusted, neutral infrastructure that enables organizations to safely embrace this new era. This work requires a relentless drive to solve complex challenges with real‑worl ...

Senior Software Engineer Java

Veeva Systems, a pioneer in industry cloud and one of the fastest-growing enterprise SaaS companies (surpassing $2B in revenue last year), is on a mission to help life sciences companies bring therapies to patients faster. As a public benefit corporation committed to balancing the interests of customers, e ...

Senior Software Architect II

**Req Id:** 428238 Connection is everything. It drives us to innovate, explore, and stay close to what matters to us most. At Bell, we’re building a more connected future through world-class networks, AI-powered solutions, and digital experiences that elevate how people live, work, and play every day.< ...

Senior Software Architect II

**Req Id:** 428238 Connection is everything. It drives us to innovate, explore, and stay close to what matters to us most. At Bell, we’re building a more connected future through world-class networks, AI-powered solutions, and digital experiences that elevate how people live, work, and play every day.< ...

Senior Mobile Software Engineer

**About the Role** As a Senior Mobile Software Engineer within our US Retirement technology organization, you will design, build, and deliver high-quality mobile and backend solutions for our Retirement customers. Working across the full stack, you will develop React Native applications and NestJS servi ...

Senior Mobile Software Engineer

**About the Role** As a Senior Mobile Software Engineer within our US Retirement technology organization, you will design, build, and deliver high-quality mobile and backend solutions for our Retirement customers. Working across the full stack, you will develop React Native applications and NestJS servi ...

Senior Embedded Software Architect

Job DescriptionInsight Global is seeking a Senior Embedded Software Architect to join a major Canadian Space company.The Senior Embedded Software Architect is part of an agile development team and responsible for the documentation, architecture and implementation of complex software for space application ...

Software Development Senior Professional

Software Development Senior Professional Location:Dieppe, CA, NB E1A 6P8Roma, IT, 00154 Requisition ID: 19416 Brightstar is an innovative, forward-thinking global leader in lottery that builds on our renowned expertise in delivering secure technology and producing reliable, compreh ...

Senior Software Engineer (Analysis)

Overview This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Senior Software Engineer (Analysis) based in Canada. This role sits at the core of a fast-growing, distributed engineering organization focused ...

Senior Software Engineer Remote

**Requisition number:** 2371441**Job category:** Technology Optum Insight is improving the flow of health data and information to create a more connected system. We remove friction and drive alignment between care providers and payers, and ultimately consumers. Our deep expertise in the industry a ...

Senior Software Engineer ROKU

**_Welcome to Warner Bros. Discovery… the stuff dreams are made of._** **Who We Are…** When we say, “the stuff dreams are made of,” we’re not just referring to the world of wizards, dragons and superheroes, or even to the wonders of Planet Earth. Behind WBD’s vast portfolio of iconic content an ...

Senior CIAM Software Engineer

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 building the next generation of customer identity and authentication. This role is a hands‑on engineering position i ...

Senior Software Engineer, McMobile

Are you an experienced software engineer with a passion for finding creative solutions to real-world problems? Do you love supporting more junior team members in their learning process? The team: Our Software Engineering team is central to the success of Jobber - focused on creati ...

Senior Software Engineer ( SONiC )

It's fun to work in a company where people truly BELIEVE in what they're doing!Lumentum Canada was awarded the 2022 National Capital Region’s Top Employers and the 2022 Career Directory Canada’s Best Employers for Recent Graduates . Position Title: Senior Software Engineer ...

Senior Software Engineer (Backend)

About Motion 💡Motion is building the command center for creative strategists: an AI-native platform that bridges the gap between performance marketers and creative teams, so they can uncover what’s working, what’s not, and ship more winning ads acr ...

Senior Software Engineer, Mapping

At Lyft, our purpose is to serve and connect. To accomplish this, we start with our community by creating an open, inclusive, and diverse organization. Our mission depends on having a digital representation of the physical world - a map with all routing related (real-time) information. This is what makes Lyft ...

Senior Software Engineer (Xstore)

Senior Software Engineer (Xstore) – Retail Technology Xstore, Java Vancouver (can consider remote) PST Qualifications: • Bachelor's degree in Computer Science/Information Technology, or in a related technical field or equivalent technology experience. • Minimum years of progre ...

Senior Software Engineer (Backend)

About Motion 💡Motion is building the command center for creative strategists: an AI-native platform that bridges the gap between performance marketers and creative teams, so they can uncover what’s working, what’s not, and ship more winning ads acr ...

Senior Software Engineer, Canada

Senior Software Engineer (Full-Time, Remote) — Canada Salary: CAD $140,000–$165,000 / yearWork Schedule: 9:00 AM - 5:00 PM PST About the role At AutoScale Ventures, we build large-scale systems behind products like VinAudit.ca (vehicle history and data) ...

Senior Software Engineer Capital

Who We Are SuiteSpot is a PropTech company transforming how residential real estate is managed and operated at scale.Our award-winning Maintenance and Capital SaaS solutions serve the top 50 multifamily property management operators in North America, helping them streamline operations across hundre ...

Senior Software Quality Engineer

Description About the Role:The Senior Software Quality Engineer leads the design, execution, and oversight of complex test strategies to ensure the delivery of high quality, reliable software products for Invesco’s Human Resources Domain. This role provides dee ...

Senior Software Engineer ROKU

Who We Are… When we say, “the stuff dreams are made of,” we’re not just referring to the world of wizards, dragons and superheroes, or even to the wonders of Planet Earth. Behind WBD’s vast portfolio of iconic content and beloved brands, are the bringing our characters to life, the bringing them ...

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