448 react engineer jobs at 223 companies in North Tonawanda, NY

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React Native Developer, Growth
Toronto, Ontario, Canada
$100k-$120k/yr HybridFull Time
HelloFresh
HelloFreshFrankfurt Stock Exchange: HFG: Global meal kit delivery service and food solutions provider.
2+ YOE2-4 years React/React Native, mobile app development, API integration, testing, CI/CD, agile teamwork.
React, React Native, Swift, Kotlin, APIs, CI/CD, Agile
3w
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Senior Software Engineer, Frontend (React-Native)
Canada or Ontario or British Columbia or Toronto or Vancouver
$116k-$145k/yr RemoteFull Time
Marqeta
MarqetaNASDAQ: MQ: Providing cloud-based card issuing and payment processing infrastructure.
5+ YOE5+ years building web and mobile apps with React Native and React; experience with native modules (Swift/Kotlin/Objective-C/Java), state management, CI/CD, REST/GraphQL, mentoring, and payments preferred.
React Native, React.js, Redux, Context API, JavaScript, TypeScript, HTML, CSS, React Navigation, Expo, Swift, Kotlin, Objective-C, Java, RESTful APIs, GraphQL, Fastlane, Bitrise, App Center, Git, WebAssembly, PWAs, OAuth
2mo
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Senior/Mid Frontend Engineer - React
Toronto, Ontario, Canada
RemoteFull Time
Sensor Tower
Sensor Tower: Provides digital market intelligence and mobile app analytics software.
Strong background in modern JavaScript, TypeScript, React; experience with state management; testing (Jest/Cypress/Playwright); web performance; mentorship; product-minded.
React, TypeScript, TanStack Query, Zustand, Jest, Cypress, Playwright
1mo
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Senior Software Engineer (Golang, React)
Toronto or United States
$125k-$150k/yr RemoteFull Time
Applied Systems
Applied Systems: Cloud-based software for insurance agency and brokerage management.
5+ YOE5+ years professional experience building web applications and services; experience with Golang, React, C#, TypeScript/JavaScript, Node JS, Kubernetes, PostgreSQL/SQL Server, GCP, testing and CI/CD; Agile/Scrum experience.
Golang, React, C#, TypeScript, JavaScript, Node JS, Kubernetes, PostgreSQL, SQL Server, GCP, Visual Studio Code, gRPC, RESTful, Jira, Confluence, Cypress, RestSharp, GIT, Claude Code, CI/CD
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Software Engineer (React + Angular)
Brazil or Toronto
HybridFull Time
Exadel
Exadel: Provides enterprise software engineering and AI-driven digital transformation services.
Senior frontend development experience with React and Angular, strong HTML5/CSS3/JavaScript/TypeScript skills, state management and build tool experience, unit testing, and English proficiency.
React 19, Angular 21+, HTML5, CSS3, JavaScript (ES6+), TypeScript, Redux, NgRx, Context API, Webpack, Vite, Jasmine, Jest, Angular Material, OpenFin, CI/CD pipelines, Bootstrap, Tailwind CSS, Mithril.js
1mo
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Senior Software Engineer (Golang, React)
Toronto or United States
$125k-$150k/yr RemoteFull Time
Applied Systems
Applied Systems: Provider of cloud-based management software for the insurance industry.
5+ YOE5+ years building web applications; 3+ years with React; experience with Golang, C#, TypeScript/JavaScript, Node JS, Kubernetes, PostgreSQL/SQL Server, GCP, gRPC and RESTful services; CI/CD, testing, code review, and mentoring skills.
React, Golang, C#, TypeScript, JavaScript, Node JS, Kubernetes, PostgreSQL, SQL Server, Microsoft Visual Studio Code, GRPC, RESTful services, Jira, Confluence, Cypress, RestSharp, GIT, Claude Code, GCP, CI/CD
9h
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Senior Front-End Engineer (React)
New York or Dubai or Hong Kong or Lisbon or London or Toronto or Zurich
RemoteFull Time
Symbiotic
Symbiotic: A shared security protocol for decentralized network restaking.
Expert React and TypeScript skills, experience with Next.js/Vite/monorepos, state management (TanStack Query, Zustand), testing (Vitest, Playwright), Sentry, Git/Docker, and frontend performance/security practices.
Figma, Storybook, React, TypeScript, Next.js, Vite, pnpm, TanStack Query, Zustand, Chakra UI, Vitest, Playwright, Sentry, Git, Docker, GitHub CI/CD, Kubernetes, CDNs, wagmi, viem
1mo
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Senior UI Developer (.NET/React)
Toronto, Ontario, Canada
$94k-$142k/yr HybridFull Time
Citi
CitiNYSE: C: Providing global banking, investment, and wealth management services.
Proficiency in .NET/C#, React, HTML5, CSS3, and JavaScript; experience in Windows and web UI development; knowledge of JSON/XML, REST APIs; TypeScript preferred; bachelor’s degree or equivalent experience.
.NET/C#, React, HTML5, CSS3, JavaScript, Windows, JSON, XML, REST API, TypeScript
3w
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Senior Software Engineer, Frontend (React-Native)
Toronto or Vancouver
$116k-$145k/yr RemoteFull Time
Marqeta
MarqetaNASDAQ: MQ: A platform for modern card issuing and payment processing.
5+ YOE5+ years building web and mobile apps with strong React Native expertise; experience with React.js, state management (Redux/Context), TypeScript/JavaScript, native iOS/Android modules, REST/GraphQL, CI/CD, and mentoring engineers.
React Native, React Navigation, Expo, Swift, Kotlin, Objective-C, Java, React.js, Redux, Context API, JavaScript, TypeScript, HTML, CSS, RESTful APIs, GraphQL, Fastlane, Bitrise, App Center, Git, WebAssembly, PWAs
4w
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Software Engineer (React + Angular)
Brazil or Toronto
HybridFull Time
Exadel: Provides digital engineering and AI-focused software consulting services.
Senior frontend experience with React 19 and Angular 21+, strong HTML5/CSS3/JavaScript (ES6+)/TypeScript skills, state management (Redux/NgRx/Context), build tools (Webpack/Vite), unit testing (Jasmine/Jest), and Angular Material.
React 19, Angular 21+, HTML5, CSS3, JavaScript (ES6+), TypeScript, Redux, NgRx, Context API, Webpack, Vite, Jasmine, Jest, Angular Material, OpenFin, Bootstrap, Tailwind CSS, Mithril.js
2mo
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Senior Mobile Developer (React Native)
Calgary or Toronto or Canada
HybridFull Time
OneVest
OneVest: Provides modular software for digital wealth management and onboarding.
5+ YOE5+ years React Native with TypeScript/JavaScript; experience building enterprise mobile apps; familiarity with FastLane, Expo, App/Play stores, TestFlight; strong GraphQL front-end with microservices.
React Native, TypeScript, JavaScript, FastLane, Expo, App Stores, Play Stores, TestFlight, GraphQL, Node, Serverless, MongoDB, AWS
2mo
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Lead Full Stack Developer (AWS & React) (PL850)
Toronto, Ontario, Canada
RemoteFull Time
Paralucent
Paralucent: A technology delivering cloud-native solutions.
10+ YOETen years+ enterprise software experience; strong AWS, React, and TypeScript; backend and frontend expertise; REST APIs; agile; leadership.
AWS, React, TypeScript, Node.js, REST APIs, Docker, Kubernetes, CI/CD, Terraform, IaC, Cloud, Databases
1mo
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Lead Engineer
Vancouver or Toronto or Ontario or Alberta
$186k-$236k/yr HybridFull Time
Xero
XeroASX: XRO: Cloud-based accounting software for small businesses and advisors.
Proven experience building and operating large-scale distributed systems; able to lead code design, mentor engineers, and apply modern practices (CI/CD, TDD). Experience with C#, .Net, React, AWS, and Kubernetes preferred.
C#, .Net, React, AWS, Kubernetes, CI/CD, TDD
1mo
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Design Engineer, Canada
Canada or Vancouver or Toronto or Montreal
$117k-$200k/yr RemoteFull Time
Ashby: Provides all-in-one recruiting software for high-growth businesses.
0+ YOEDesign-and-code role requiring strong visual design and front-end engineering skills; proficiency with TypeScript, React, and CSS; familiarity with backend technologies (Node.js, GraphQL, Postgres, Redis) is a plus.
TypeScript, React, GraphQL, Node.js, Postgres, Redis, CSS, CI/CD
2mo
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Senior Full-Stack Developer (Ruby on Rails/React)
Toronto, Ontario, Canada
OnsiteFull Time
Phoenix
Phoenix: Provides online medical consultations and discreet prescription medication delivery.
8+ YOE8+ years programming; 5+ years Ruby on Rails; expertise in at least one modern JS frontend (ideally React); robust feature development and testing; cloud experience (AWS preferred).
Ruby on Rails, React, AWS
2mo
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Senior AI Full-Stack Software Developer (Python/React)
Toronto or Montreal
$119k-$145k/yr HybridFull Time
Intact Financial
Intact FinancialToronto Stock Exchange: IFC: Provides property and casualty insurance to individuals and businesses.
5+ YOESenior AI full-stack developer with 5+ years experience, TS/React, Python, AWS, REST/Swagger, AI concepts (GenAI, MLOps); bilingual in Quebec; eligible to work in Canada.
TypeScript, React, Python, AWS, REST, Swagger, MLOps
1mo
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Associate Director, Lead Fullstack Developer (React/Node.js)
Toronto, Ontario, Canada
OnsiteFull Time
Royal Bank of Canada
Royal Bank of CanadaTSX: RY: Provides personal, commercial, and investment banking services worldwide.
10+ YOE3+ Mgmt10+ years software engineering experience with MERN/TypeScript, Next.js, NestJS, Docker, Kubernetes; 3+ years people management; experience with cloud, CI/CD, CI tools, design systems, REST/GraphQL.
MongoDB, Express.js, React.js, Node.js, Next.js, NestJS, Docker, Kubernetes, TypeScript, GraphQL, WebSockets, SQL Server, PostgreSQL, AWS, Azure, GCP, Helm, Terraform, Nx, Redis, KeyDB, Solace, Kafka, MUI, Storybook, CI/CD
1mo
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Senior Software Engineer (Remote)
Toronto or Ontario or Canada
$154k-$176k/yr RemoteFull Time
PolicyMe
PolicyMe: Provides digital life, health, and critical illness insurance products.
5+ YOE5+ years full-stack and AI/ML engineering experience; deep expertise in NLP/computer vision; proficiency with Python, React, Node, PostgreSQL, LangChain/LangGraph, n8n, and AWS; cloud, microservices, and architecture leadership; mentoring experience.
Python, React, Redux, PostgreSQL, n8n, LangChain, LangGraph, AWS, Node
2mo
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Sr. Platform Engineer - Online Accounting Opening
Vancouver or Toronto
$101k-$125k/yr HybridFull Time
Vancity
Vancity: Member-owned credit union providing banking and financial services.
5+ YOE5+ years in platform or software engineering; strong frontend (React/Next.js); headless CMS; cloud hosting/CI/CD; API design; Agile; security and accessibility focus.
React, Next.js, Headless CMS (Sitecore or similar), CI/CD, Vercel or similar edge/CDN, REST APIs
6d
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Product Engineer - Brand - Fullstack, Backend or Frontend
Kitchener-Waterloo or Toronto
$130k-$178k/yr HybridFull Time
Faire
Faire: Online wholesale marketplace connecting independent retailers with unique brands.
2+ YOE2+ years experience, proficient in Java, Kotlin, or JavaScript; familiar with HTML, CSS, TypeScript, React/Next.js; bachelor's degree or equivalent; product-driven engineering and mentoring experience.
Kotlin, Java, Javascript, HTML, CSS, Typescript, React, NextJS, JUnit, Hibernate, Guice, Jersey, HTTP, JSON, Protocol Buffers, MySQL, CockroachDB, AWS