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Top Full Stack Developer Jobs in Toronto

Reposted 3 Days AgoSaved
In-Office
Toronto, ON
Senior level
Senior level
Cloud • Information Technology • Software • Analytics • Business Intelligence
As a Senior Fullstack Engineer, you'll develop and maintain core data browsing features, collaborate with teams, and mentor engineers while contributing to the Sentry stack.
Top Skills: DjangoJavaScriptPythonReactTypescript
Reposted 3 Days AgoSaved
In-Office
Toronto, ON
Senior level
Senior level
Artificial Intelligence • Information Technology • Software
Build AI-driven applications for researchers by developing scalable web platforms, integrating AI systems, and collaborating with cross-functional teams.
Top Skills: Ai ApisMySQLNext.JsNode.jsPHPPostgresPythonReact
Reposted 3 Days AgoSaved
In-Office
Toronto, ON
Senior level
Senior level
Artificial Intelligence • Software • Big Data Analytics
Lead technical direction and development of applications, mentor engineers, collaborate on features, and ensure quality through code reviews.
Top Skills: AngularJavaScriptNest.JsNode.jsTypescript
Reposted 3 Days AgoSaved
In-Office or Remote
Toronto, ON
Senior level
Senior level
Information Technology • Professional Services • Consulting
As a Senior Software Engineer, you'll architect, build, and optimize both backend systems and user-facing experiences for an AI-native coaching platform, collaborating with cross-functional teams to deliver features end-to-end.
Top Skills: DjangoJavaScriptPythonReactVue
Reposted 3 Days AgoSaved
In-Office or Remote
Toronto, ON
Senior level
Senior level
Financial Services
Lead technical projects for product scaling. Design and maintain APIs and services, ensuring reliability and user experience while collaborating with product teams.
Top Skills: PostgresReactRuby
Reposted 3 Days AgoSaved
In-Office or Remote
Toronto, ON
Senior level
Senior level
Machine Learning • Biotech • Agriculture
As a Senior Software Engineer, you will build software for carbon dioxide removal efforts, focusing on full-stack development and optimizing complex workflows.
Top Skills: LiveviewPhoenixPostgisPostgresReactSQLTypescript
4 Days AgoSaved
In-Office or Remote
Toronto, ON
Senior level
Senior level
Artificial Intelligence • Automotive • Machine Learning • Financial Services
Build and maintain backend-first automation systems for insurance servicing (endorsements, cancellations, renewals, document workflows). Design scalable APIs and data pipelines, ship rapid iterations, reduce manual agent work, collaborate with product and data to improve retention, and evolve microservice-based backend architecture.
Top Skills: Typescript,Nest.Js,Next.Js,React,React Native,Expo,Graphql,Postgres,Dynamodb,Clickhouse,Redis,Aws,Ecs,Eks,Lambda,Microservices
4 Days AgoSaved
In-Office or Remote
Toronto, ON
Junior
Junior
Artificial Intelligence • Automotive • Machine Learning • Financial Services
Build and maintain backend-leaning full-stack automation systems for insurance servicing (endorsements, cancellations, uploads, reinstatements), design pipelines and APIs, scale internal tools, collaborate cross-functionally, and ship frequent iterations to improve retention and user self-service.
Top Skills: Typescript,Nest.Js,Next.Js,React,React Native,Expo,Graphql,Postgres,Dynamodb,Clickhouse,Redis,Aws,Ecs,Eks,Lambda,Microservices,Containerization
4 Days AgoSaved
In-Office or Remote
Toronto, ON
Junior
Junior
Artificial Intelligence • Automotive • Machine Learning • Financial Services
Build and maintain backend-first automation systems for insurance servicing (endorsements, cancellations, renewals), design pipelines syncing policy data, scale internal tools, ship rapid automations, collaborate with product/data, and improve APIs and microservice architecture to reduce manual agent intervention.
Top Skills: Typescript,Nest.Js,Next.Js,React,React Native,Expo,Graphql,Postgres,Dynamodb,Clickhouse,Redis,Aws,Ecs,Eks,Lambda,Microservices
Reposted 17 Days AgoSaved
Remote
Toronto, ON
Senior level
Senior level
Edtech
The Staff Full Stack Engineer will design and implement scalable systems, mentor engineers, and contribute to technical strategy while ensuring system reliability and high performance.
Top Skills: AWSCSSDockerDynamoDBElasticsearchGoGraphQLHTMLKafkaKinesisKubernetesNext.JsNode.jsPostgresReactRedisRubySparkTerraformTypescript
18 Days AgoSaved
In-Office or Remote
Toronto, ON
Mid level
Mid level
Angel or VC Firm
As the first engineering hire, you will build the core intelligence engine for factories, handling full-stack development and influencing product decisions.
Top Skills: Ai/MlAzureErpGdprLlmMesSoc2SQL
5 Days AgoSaved
In-Office
Toronto, ON
Senior level
Senior level
Software
Design, build, and operate core full-stack services for a high-volume financial SaaS platform. Deliver user-facing React applications and backend APIs in C#/ASP.NET, ensure production reliability, optimize relational data models and SQL, implement strong testing and observability, and collaborate cross-functionally to shape scalable, secure payment systems.
Top Skills: Asp.NetAzureC#CSSHTMLJavaScriptReactRelational DatabasesSQL
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Reposted 5 Days AgoSaved
Hybrid
Toronto, ON
Senior level
Senior level
Other
Lead development of full-stack web applications, making architectural decisions, collaborating with teams, writing clean code, and refining products post-launch.
Top Skills: FastapiFlaskGCPGoNode.jsPythonReactTypescript
Reposted 5 Days AgoSaved
Hybrid
Toronto, ON
Senior level
Senior level
Artificial Intelligence • HR Tech • Software
The Senior Fullstack Software Engineer will design and build LLM-based solutions, optimize applications using TypeScript, Python, and AWS, while mentoring junior engineers.
Top Skills: Api GatewayAws (LambdaFargatePostgresPythonS3)Typescript
Reposted 5 Days AgoSaved
Easy Apply
In-Office
Toronto, ON
Easy Apply
Senior level
Senior level
Cloud • eCommerce • Payments • Sales • Software
Develop and maintain web applications using Node.js, React, and Go, ensuring high performance and user experience, while mentoring junior developers.
Top Skills: AWSAzureDockerGCPGo/GolangKubernetesMongoDBNode.jsPostgresReact
Reposted 5 Days AgoSaved
Easy Apply
In-Office
Toronto, ON
Easy Apply
Expert/Leader
Expert/Leader
Sales • Software
This role involves product development, solution design, and architecture in a fast-paced environment, emphasizing modern UI and backend development skills.
Top Skills: AWSCypressDjangoDockerGithub ActionsJavaScriptJestPostgresPythonReactSassTypescript
25 Days AgoSaved
Easy Apply
Remote
Toronto, ON
Easy Apply
Senior level
Senior level
Consumer Web • Digital Media • Software
Senior Full-Stack Software Engineer position focusing on building, shipping features, and improving code quality using React, TypeScript, and Ruby on Rails.
Top Skills: ReactRuby On RailsTypescript
Reposted 19 Days AgoSaved
Remote
Toronto, ON
Mid level
Mid level
Artificial Intelligence • Software • Cybersecurity
Design and build AI-driven cybersecurity products, collaborate with stakeholders, mentor engineers, and enhance infrastructure efficiency.
Top Skills: AWSAzureCSSDockerGCPHTMLHTTPJavaScriptKubernetesPythonTypescript
Reposted 19 Days AgoSaved
Easy Apply
Remote
Toronto, ON
Easy Apply
Junior
Junior
AdTech • Marketing Tech
As a Full Stack Engineer, you will develop StackAdapt's advertising platform, producing high-quality code and collaborating on scalable systems.
Top Skills: GoGraphQLJavaScriptReactReduxRuby On RailsTypescript
Reposted 6 Days AgoSaved
In-Office
Toronto, ON
Senior level
Senior level
Fintech • Software • Financial Services
The Senior Full-Stack Java Developer designs and develops applications, collaborates in teams, and addresses technical debt while ensuring security standards are met.
Top Skills: AWSCrystal ReportsCSSDb2ElasticsearchGitGCPHTMLJavaJava EeJavaScriptJsfJSONPostgresPythonRestapisShell ScriptsSQLTableau
Reposted 6 Days AgoSaved
In-Office
Toronto, ON
Senior level
Senior level
Information Technology • Software
The Senior Java Full Stack Developer will design, develop, test, and maintain web-based software solutions while providing technical guidance and support to the team.
Top Skills: AngularAzure Container RegistryAzure DevopsEjbHibernateHTMLJ2EeJavaJava RmiJavaScriptJenkinsJspMavenRelational DatabasesRestServletsSoapSpring FrameworkWeb ServicesXML
7 Days AgoSaved
In-Office or Remote
Toronto, ON
Senior level
Senior level
AdTech • Software
Design, build, and maintain front-end and back-end systems using JavaScript/Node.js and React. Define and document APIs, write production-ready test-driven code, troubleshoot production issues, contribute to scalable secure architecture, collaborate with product/design, mentor engineers, and own technical design and roadmap execution.
Top Skills: Javascript,Node.Js,Openapi,React,Next.Js,Storybook,Restful Api,Fastify,Css,Webpack,Redux,Postgresql,Redis,Docker,Gcp Monitoring Tools,Ruby On Rails,Testing Libraries
7 Days AgoSaved
In-Office or Remote
Toronto, ON
Senior level
Senior level
Fintech • Software • Financial Services
Lead design and implementation of front-end and back-end features for the digital banking platform. Build scalable, secure APIs, drive TDD and testing, refactor to reduce technical debt, collaborate with cross-functional teams and vendors, and mentor junior engineers while ensuring regulatory compliance.
Top Skills: .Net.Net CoreAngularAPIsAWSAzureC#CSSGoogle Cloud PlatformHTMLReactSdksSQLTypescript
Reposted 7 Days AgoSaved
In-Office
Toronto, ON
Senior level
Senior level
Fintech • Financial Services
The Fullstack .Net Developer leads the development and management of enterprise applications, ensuring integration and enhancement of business processes while coaching other developers.
Top Skills: .Net.Net 6+Angular 13+C#Ci-CdCloud ArchitectureCSSDevOpsEcsHTMLJqueryJSONKafkaKubernetesMessaging QueueNosql (Mongodb)PythonRest ApiWeb Services
8 Days AgoSaved
In-Office
Toronto, ON
Senior level
Senior level
Kids + Family • Marketing Tech • Mobile • News + Entertainment • Retail
As a Senior Fullstack Developer at Spin Master, you will lead end-to-end development of features for the Lylli app, collaborating with teams to enhance user experience, scale backend services, and ensure performance and reliability.
Top Skills: AWSAzureGCPJavaNode.jsPostgresReact
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