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Newfane • 50 milesRemote · Hybrid · Onsite · Field · All Environments

Newfane • 50 milesRemote · Hybrid · Onsite · Field · All Environments

Newfane • 50 milesRemote · Hybrid · Onsite · Field · All Environments

Newfane • 50 milesRemote · Hybrid · Onsite · Field · All Environments

364 senior react developer jobs at 182 companies in Newfane, NY

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1mo

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

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2mo

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

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2mo

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

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2mo

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

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2mo

Senior UI Developer (.NET/React)

Toronto, Ontario, Canada

$94k-$142k/yr HybridFull Time

Citi

CitiNYSE: C: Global diversified financial services holding.

Proficiency in .NET/C#, React, HTML5, CSS3, and JavaScript; experience in Windows and Web UI development; knowledge of JSON/XML and REST integrations; familiarity with test frameworks; Bachelor's degree or equivalent experience.

.NET, C#, React, HTML5, CSS3, JavaScript, JSON, XML, REST API, TypeScript

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2mo

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

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2mo

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

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1mo

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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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

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2mo

Senior Full Stack Developer

Toronto or Montreal

$100k-$130k/yr HybridFull Time

TravelBrands

TravelBrands: Canadian travel wholesaler and retailer providing comprehensive booking solutions.

5+ YOESenior full stack developer with Node.js/NestJS, TypeScript, React/Next.js, AWS serverless, SQL/NoSQL, and CI/CD; mentoring and cross-functional collaboration.

Node.js, NestJS, TypeScript, React, Next.js, PostgreSQL, MongoDB, DynamoDB, Elasticsearch, AWS, S3, Lambda, Docker, Terraform, Jest, Mocha

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Senior Full Stack Developer (Node.js / React / AWS)

Halifax or Moncton or Fredericton or Stratford or St. John's or Vancouver or Toronto

$75k-$145k/yr OnsiteFull Time

CGI

CGINYSE: GIB: Provides information technology and business consulting services.

8+ YOE8+ years software development, 6+ years Node.js, and strong full-stack Node.js/React experience. Requires AWS, APIs, PostgreSQL, Kafka, Redis, Docker, CI/CD, Kubernetes or ECS, Git, and Agile experience.

Node.js, TypeScript, React, AWS, CI/CD, REST, GraphQL, Apollo Server, PostgreSQL, Kafka, AWS Lambda, Amazon ECS, Amazon SQS, Amazon RDS, Amazon API Gateway, IAM, GitHub Actions, Docker, Kubernetes, Redis, Git, GitHub, AWS S3, Agile

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2mo

Senior Software Developer

Toronto, /, Canada

$100k-$142k/yr HybridFull Time

Moneris

Moneris: Processes merchant payments and provides point-of-sale commerce solutions.

Develop mobile apps for iOS/Android using React Native and native Swift/Kotlin; ensure automated tests, CI/CD, and Agile practices.

React Native, Swift, Kotlin, GitHub, GitHub Actions

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1mo

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

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Senior Full Stack Developer (Java And React/Angular) - Operate

Toronto, Ontario, Canada

$72k-$138k/yr HybridContract

Deloitte

Deloitte: Global provider of audit, consulting, financial, and tax services.

6+ YOERequires 6+ years of software development experience, Java/J2EE, Spring Boot, microservices, Angular or React, REST APIs, Kubernetes, Docker, CI/CD, Git, databases, Agile, and a bachelor's degree.

Java, J2EE, Spring Boot, Microservices Architecture, Angular, React, REST APIs, Kubernetes, Docker, CI/CD, Git, PostgreSQL, MySQL, Oracle, Hibernate, JPA, ORM

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3mo

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3mo

Senior Fullstack Developer, Consumer

Toronto, Ontario, Canada

$120k-$150k/yr HybridFull Time

HelloFresh

HelloFreshFrankfurt Stock Exchange: HFG: Global meal kit delivery service and food solutions provider.

4+ YOE4+ years in agile software development; strong React JS experience; backend experience with Node.js/Nest/Nx; GraphQL, SQL, testing, and CI/CD; knowledge of storefronts (Shopify) and AI coding tools.

React, Next.js, Nest.js, Shopify, GraphQL, SQL, Node.js, Python, GoLang, Nuxt.js, Remix, Datadog, Sentry, Honeycomb, New Relic, AB testing, Multivariate testing

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2mo

Senior Software Engineer, CMS (Auto Repossession & Remarketing)

Toronto, Ontario, Canada

$140k-$190k/yr OnsiteFull Time

TRADER Corporation

TRADER Corporation: Operates Canada's largest digital marketplace for buying and selling vehicles.

5+ YOESenior engineer with ownership mindset; strong TS/React; .NET expertise; experience building production systems; AI/GenAI experience a plus.

TypeScript, React, Next.js, .NET

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2mo

Senior Software Developer (Askuity division)

Toronto, Ontario, Canada

$62k-$70k/yr HybridFull Time

Home Depot

Home DepotNYSE: HD: Sells home improvement products, building materials, and lawn equipment.

5+ YOE5+ years software development experience; senior role; strong backend and frontend; experience with GCP, Kubernetes; Scala, Play! Framework, Python; SQL/NoSQL; microservices; Agile.

Scala, Play! Framework, Python, Flask, Postgres, Redis, Firestore, BigQuery, AKKA/Pekko, TypeScript, React, Kubernetes, Docker, GitHub Pipelines, Spinnaker, GCP

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2mo

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

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2mo

Senior Frontend Engineer

Toronto, Ontario, Canada

OnsiteFull Time

Venn

Venn: Digital banking and financial management platform for Canadian businesses.

6+ YOE6+ years in frontend development; expert in JavaScript/TypeScript, React/Next.js, HTML5, CSS3; strong REST API design; Jest and React Testing Library experience; proficient with Figma; eligible to work in Canada.

JavaScript, TypeScript, React, Next.js, HTML5, CSS3, Jest, React Testing Library, REST API, Figma

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Senior Software Engineer

Toronto, Ontario, Canada

HybridFull Time

Emburse

Emburse: Provides AI-powered travel and expense management software for businesses.

6+ YOE6+ years software development experience (Java preferred), experience with Spring, AWS, microservices, REST/JSON APIs, Docker, React/React Native, Node.js, SQL/NoSQL, GIT; mentoring and project leadership experience.

Java, OS X, Linux, Spring, AWS, Microservices, SQL, NoSQL, GIT, JSON, REST, Docker, React Native, React, Javascript, nodejs, NPM, webpack, iOS, Android

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