1,394,887+ Senior Full Stack Developer Nodejsreactjs Jobs in Canada — Top Companies Hiring August 2026

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Remote Senior Full Stack Engineer: Observability & Cloud Integrations

Grafana Labs, a remote-first company, is hiring for a role in its Grafana Cloud Observability team. You will develop tooling to power our cloud integrations and observability apps, working across frontend (TypeScript/React), backend (Go), and monitoring mixins (Jsonnet). As part of a globally distribut ...

Senior Full Stack Engineer Lead Platform & UX (Remote)

StackAdapt, a Remote First company, is seeking a Senior Full Stack Engineer to lead an expanding team building a new ads operating system. You will architect scalable web APIs and backend services, collaborating with Data Science, Product and Design to deliver high-impact product experiences across multi-chan ...

Senior Full Stack Software Engineer Global AI Platform

This role designs and delivers a scalable, secure, cloud native AI platform that enables enterprise grade AI and agent powered solutions. The position focuses on building event driven, distributed services using Akka and modern MLOps practices to support continuous learning, experimentation, and governance ...

Senior Full Stack Engineer: Cloud Native, Global Scale

A global ecommerce platform is seeking a Senior Full Stack Engineer to redefine the Goldin platform. The role involves designing scalable, cloud-native architectures and requires expertise in Python, JavaScript, and AWS services. The ideal candidate has extensive experience in developing consumer-facing applicat ...

Senior Full Stack Tech Lead AI Driven Fintech

QFG is seeking a hands-on Team Lead, Software Engineering to guide a squad of engineers and own a key system. You will drive architecture, review code, and ensure delivery of full-stack solutions while mentoring teammates. You’ll lead with a people-first approach, collaborate with People & Culture on p ...

Senior Full Stack Engineer: Virtual Care & Healthcare APIs

Stafingo is hiring a Senior Full Stack Developer for a public sector client in the Greater Toronto Area (GTA). The contract role focuses on modernizing Virtual Care Products, with video platform integration and healthcare interoperability. You will work in a hybrid model, contributing to design, develo ...

Senior Full Stack Engineer Remote, High Impact Leader

Affirm is seeking a Senior Full Stack Software Engineer to lead the Acquisition & Onboarding team. This role shapes the first customer interactions and requires setting technical direction across mobile, web, and backend systems. You will mentor engineers, drive architectural decisions, and partner wit ...

Senior Full Stack Engineer Remote, High Impact Leader

Affirm is seeking a Senior Full Stack Software Engineer to lead the Acquisition & Onboarding team. This role shapes the first customer interactions and requires setting technical direction across mobile, web, and backend systems. You will mentor engineers, drive architectural decisions, and partner wit ...

Senior Full Stack Engineer Remote, High Impact Leader

Affirm is seeking a Senior Full Stack Software Engineer to lead the Acquisition & Onboarding team. This role shapes the first customer interactions and requires setting technical direction across mobile, web, and backend systems. You will mentor engineers, drive architectural decisions, and partner wit ...

Senior Full Stack Engineer Remote, High Impact Leader

Affirm is seeking a Senior Full Stack Software Engineer to lead the Acquisition & Onboarding team. This role shapes the first customer interactions and requires setting technical direction across mobile, web, and backend systems. You will mentor engineers, drive architectural decisions, and partner wit ...

Senior Full Stack Engineer Remote, High Impact Leader

Affirm is seeking a Senior Full Stack Software Engineer to lead the Acquisition & Onboarding team. This role shapes the first customer interactions and requires setting technical direction across mobile, web, and backend systems. You will mentor engineers, drive architectural decisions, and partner wit ...

Remote Senior Full Stack Engineer: Observability & Cloud Integrations

Grafana Labs, a remote-first company, is hiring for a role in its Grafana Cloud Observability team. You will develop tooling to power our cloud integrations and observability apps, working across frontend (TypeScript/React), backend (Go), and monitoring mixins (Jsonnet). As part of a globally distribut ...

Remote Senior Full Stack Engineer: Observability & Cloud Integrations

Grafana Labs, a remote-first company, is hiring for a role in its Grafana Cloud Observability team. You will develop tooling to power our cloud integrations and observability apps, working across frontend (TypeScript/React), backend (Go), and monitoring mixins (Jsonnet). As part of a globally distribut ...

Senior Full Stack Rails Engineer Remote & Flexible PTO

ZayZoon in Canada is hiring a Senior Developer to own features end-to-end - from back-end architecture through front-end delivery, testing, and demo - and you'll bring both the speed to experiment and the craft to make those experiments production-ready when they matter. If you care about understanding root c ...

Ingénieur·e Full Stack Senior – Java/Spring Boot & React

Une entreprise de recrutement en TI recherche un développeur full stack senior pour concevoir et moderniser des solutions technologiques. Le candidat idéal doit posséder une solide expérience en Java et React, et être à l'aise dans des environnements TI exigeants. Les responsabilités incluent l'architecture et l ...

Senior Full Stack Software Engineer Global AI Platform

This role designs and delivers a scalable, secure, cloud native AI platform that enables enterprise grade AI and agent powered solutions. The position focuses on building event driven, distributed services using Akka and modern MLOps practices to support continuous learning, experimentation, and governance ...

Senior Full Stack Engineer — Scale Products & Mentor Team

A leading creative platform in Vancouver is seeking a Senior Software Developer, Full Stack, to design and deliver innovative product features. You will mentor junior developers and contribute to projects enhancing product scalability. A strong background in PHP and relational databases is essential. This role i ...

Senior Java Full Stack Engineer (Hybrid) — Regulatory Platforms

Staffmax Staffing & Recruiting is seeking a Senior Java Full Stack Developer to design and build scalable, high-performance applications supporting regulatory platforms. The ideal candidate has strong expertise in Java 11+, Spring Boot, Microservices, Kafka, MongoDB, SQL/PLSQL, and cloud-native develop ...

Senior Full Stack Engineer: Enterprise Platforms & AI Tools

RBC in Vancouver is seeking a Senior Full Stack Developer to build and extend enterprise-wide digital tools such as RBC Translate and Canva. The role involves developing new applications, integrating APIs, and ensuring secure data handling across systems. You will work with React.js on the frontend and ...

Remote Senior Full Stack Engineer: Observability & Cloud Integrations

Grafana Labs, a remote-first company, is hiring for a role in its Grafana Cloud Observability team. You will develop tooling to power our cloud integrations and observability apps, working across frontend (TypeScript/React), backend (Go), and monitoring mixins (Jsonnet). As part of a globally distribut ...

Senior Full Stack Engineer: REST APIs, Data Pipelines

A leading software company in Toronto is seeking a Sr. Software Developer - Full Stack to design and expand data pipelines and troubleshoot technical issues. Candidates should have proficiency in both front-end and back-end development, alongside experience in database design and REST API services. The role requ ...

Senior Full Stack Dev (React/Node) — Microservices & Cloud

A leading software development company in Toronto is seeking a Full Stack Developer to design and maintain scalable web applications, collaborate with teams, and manage APIs. The ideal candidate will have over 5 years of experience in full-stack development, expertise in React.js, Node.js, and Java. The role off ...

Senior Full Stack Engineer: REST APIs, Data Pipelines

A leading software company in Toronto is seeking a Sr. Software Developer - Full Stack to design and expand data pipelines and troubleshoot technical issues. Candidates should have proficiency in both front-end and back-end development, alongside experience in database design and REST API services. The role requ ...

Senior Full Stack Dev: TypeScript, PostgreSQL & AWS (Hybrid)

Apptoza Inc. in Toronto, ON is seeking a Full Stack Developer to design, develop, and maintain scalable applications using TypeScript. The role is contract-based and hybrid (4 days in office in Toronto). You will build RESTful APIs, work with PostgreSQL, AWS, and collaborate with cross-functional teams ...

Senior Full Stack Engineer: React/Node on Azure

A technology recruitment firm is seeking a Senior Software Developer to design and maintain modern web applications within an Agile environment. The candidate must have strong experience with front-end and back-end technologies, particularly React and TypeScript, and familiarity with Microsoft Azure cloud servic ...

Senior Full Stack Engineer (React/Node/Java) Hybrid

A health and wellness software company is seeking an experienced Full Stack Developer to build scalable applications in a hybrid environment. The role involves utilizing React.js, Node.js, and Java/Spring Boot to create robust user-focused applications. The ideal candidate has over 5 years of experience and a ba ...

Senior Full Stack Tech Lead AI Driven Fintech

QFG is seeking a hands-on Team Lead, Software Engineering to guide a squad of engineers and own a key system. You will drive architecture, review code, and ensure delivery of full-stack solutions while mentoring teammates. You’ll lead with a people-first approach, collaborate with People & Culture on p ...

Lead Senior Full Stack Engineer — Remote Onboarding & Growth

Affirm is seeking a Senior Full Stack Software Engineer to join the Acquisition & Onboarding team. You will guide architecture across mobile, web, and backend systems, mentor engineers, and drive high-velocity delivery with a focus on reliability and user experience. The role emphasizes collaboration w ...

Senior Full Stack Software Engineer – Remote Health Tech

A healthcare technology company is seeking a Senior Software Developer with extensive experience in full-stack engineering. In this role, you will create scalable and efficient systems, collaborating closely with cross-functional teams. Applicants should have at least 5 years of experience and strong proficiency ...

Senior Full Stack Dev: TypeScript, PostgreSQL & AWS (Hybrid)

Apptoza Inc. in Toronto, ON is seeking a Full Stack Developer to design, develop, and maintain scalable applications using TypeScript. The role is contract-based and hybrid (4 days in office in Toronto). You will build RESTful APIs, work with PostgreSQL, AWS, and collaborate with cross-functional teams ...

Senior Full Stack Engineer Remote, High Impact Leader

Affirm is seeking a Senior Full Stack Software Engineer to lead the Acquisition & Onboarding team. This role shapes the first customer interactions and requires setting technical direction across mobile, web, and backend systems. You will mentor engineers, drive architectural decisions, and partner wit ...

Senior Full Stack Engineer Lead Platform & UX (Remote)

StackAdapt, a Remote First company, is seeking a Senior Full Stack Engineer to lead an expanding team building a new ads operating system. You will architect scalable web APIs and backend services, collaborating with Data Science, Product and Design to deliver high-impact product experiences across multi-chan ...

Senior .NET Full Stack Lead React & SQL Expert

A technology company in Canada is looking for a Senior Fullstack Developer to lead development efforts and build complex features. This role requires 5+ years of experience with C# and .NET technologies, including building web and Windows applications. You'll collaborate closely with leadership to create innovat ...

Senior Full Stack Engineer for AI Driven Products

A leading technology company is seeking a Senior Full Stack Software Engineer to design and develop user-friendly experiences. This role entails project management, full ownership of key product areas, and collaboration with cross-functional teams. Applicants should have over 8 years of professional experience, ...

Senior Full Stack Engineer: Virtual Care & Healthcare APIs

Stafingo is hiring a Senior Full Stack Developer for a public sector client in the Greater Toronto Area (GTA). The contract role focuses on modernizing Virtual Care Products, with video platform integration and healthcare interoperability. You will work in a hybrid model, contributing to design, develo ...

Senior Full Stack Engineer: Cloud Native AI Integrations

Your Moneris Career – The Opportunity: Senior Full Stack DeveloperDesign and build secure, scalable backend services, integrations, and content-driven frontends that unify SaaS platforms, enterprise systems, and AI capabilities into cohesive digital products.You will join a team building the integration backbone ...

Senior Full Stack Engineer Monetization & AI Ads (Toronto)

Pinterest in Toronto is looking for a senior full-stack engineer to join the Monetization team. You will design and ship features for ad-creation and Pinner-facing experiences, collaborating with product, design, and backend partners. The role covers the full development lifecycle from ideation to scal ...

Senior Full Stack Engineer: Lead Architecture & Onboarding (Remote)

Affirm is seeking a Senior Full Stack Software Engineer to join the Acquisition & Onboarding team within the Consumer org. This is a high-impact leadership role for an engineer who can set technical direction, drive architectural decisions, and elevate the quality and velocity of full stack development across ...

Senior Full Stack Engineer – Remote, High Impact Leader

Affirm, Inc. is seeking a Senior Full Stack Software Engineer to join the Acquisition & Onboarding team. You will help shape the first customer experience with Affirm, building trusted, clear experiences across mobile, web, and backend systems. This leadership role requires setting technical direction, ...

Senior Full Stack Engineer: Cloud Native AI Microservices

A prominent software company in Toronto is seeking a Sr. Software Developer - Full Stack to design and optimize cloud-native microservices. The candidate should have expertise in Angular and Spring Boot, with a strong background in AI/ML framework integration and experience in building scalable backend services. ...

Senior Full Stack Software Engineer – Remote Health Tech

A healthcare technology company is seeking a Senior Software Developer with extensive experience in full-stack engineering. In this role, you will create scalable and efficient systems, collaborating closely with cross-functional teams. Applicants should have at least 5 years of experience and strong proficiency ...

Senior Full Stack Engineer React/Node.js (Hybrid Toronto)

TEEMA is seeking a Senior Full Stack Developer to lead and contribute hands-on across React and Node.js, delivering scalable REST APIs and cloud-based solutions. Based in Toronto, this hybrid role requires 3 onsite days per week. Salary is CAD 120,000–150,000 plus bonus and RRSP matching; you will shap ...

Senior Full Stack .NET Architect in Gen AI

Explore a remote position as a Senior Full Stack .NET Architect at Avanade, with a focus on Generative AI advancements. Drive revolutionary digital experiences today.Avanade is looking for an experienced Full Stack Engineering Architect to guide the integration of Generative AI into applications. This role b ...

Senior Full Stack .NET Architect in Gen AI

Explore a remote position as a Senior Full Stack .NET Architect at Avanade, with a focus on Generative AI advancements. Drive revolutionary digital experiences today.Avanade is looking for an experienced Full Stack Engineering Architect to guide the integration of Generative AI into applications. This role b ...

Remote Senior Full Stack Engineer: Observability & Cloud Integrations

Grafana Labs, a remote-first company, is hiring for a role in its Grafana Cloud Observability team. You will develop tooling to power our cloud integrations and observability apps, working across frontend (TypeScript/React), backend (Go), and monitoring mixins (Jsonnet). As part of a globally distribut ...

Senior Full Stack Engineer — AI‑Native Platform, Remote

Alexander Chapman is seeking a Senior Full Stack Engineer to own product development end-to-end in an AI-native environment. You will build and scale backend systems with Python, FastAPI, PostgreSQL, and GCP, while delivering polished frontend experiences with React and TypeScript. You will mentor peer ...

Senior Full Stack .NET Architect in Gen AI

Explore a remote position as a Senior Full Stack .NET Architect at Avanade, with a focus on Generative AI advancements. Drive revolutionary digital experiences today. Avanade is looking for an experienced Full Stack Engineering Architect to guide the integration of Generative AI into applications. T ...

Senior Java Full Stack Engineer (Hybrid) – Financial Services

A consulting and technology services firm in Toronto is seeking a Senior Java Full Stack Developer. The ideal candidate will have strong expertise in Java, Spring Boot, and Angular, with over 8 years of experience in a financial services setting. Responsibilities include designing and building applications that ...

Senior Full Stack Software Engineer – Acquisitions and Activation

Senior Full Stack Software Engineer - Acquisitions and Activation at Okta About the role In this pivotal role, you will be responsible for the systems that facilitate the onboarding process for new users of the Auth0 platform. Your primary focus will be on constructing and maintaining the infrastr ...

Remote Senior Full Stack Engineer: Observability & Cloud Integrations

Grafana Labs, a remote-first company, is hiring for a role in its Grafana Cloud Observability team. You will develop tooling to power our cloud integrations and observability apps, working across frontend (TypeScript/React), backend (Go), and monitoring mixins (Jsonnet). As part of a globally distribut ...

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    Senior Full Stack Developer Nodejsreactjs Jobs in Canada Job Search Guide, Trends and Insights