140 frontend software engineer jobs at 103 companies in Niagara Falls, NY

3w
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Senior Frontend Software Engineer, AI UX
Toronto, Ontario, Canada
$140k-$200k/yr HybridFull Time
Pebl
Pebl: Platform for hiring, paying, and managing global employees.
8+ YOE8+ years full-stack software engineering with strong frontend/UX focus, 1+ year building LLM/agentic products, React/TypeScript proficiency, prompt design and observability experience.
React, TypeScript, LLM
6d
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Senior Software Engineer (Frontend) - Scribd Core
San Francisco or Ottawa or Phoenix or Toronto or Los Angeles or Denver or Salt Lake City or Atlanta or Chicago or Houston or Portland or New York City or Vancouver or San Diego or Washington, D.C. or Sacramento or Jacksonville or Seattle or Mexico City or Austin or Miami or Boston or Dallas
$124k-$226k/yr HybridFull Time
Scribd
Scribd: Subscription-based digital library for e-books, audiobooks, and documents.
6+ YOERequires 6+ years of frontend software engineering experience, JavaScript/TypeScript and React expertise, modern web framework experience, architecture knowledge, performance optimization, testing, and strong collaboration skills.
JavaScript, TypeScript, React, Next.js, Microfrontend, monorepos
2w
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Frontend Engineer
Toronto, Ontario, Canada
OnsiteFull Time
Feathery
Feathery: AI-powered data intake and workflow automation software.
3+ YOE3+ years building frontend apps with React or similar, strong JavaScript/TypeScript skills, experience shipping features end-to-end, UX focus, and strong communication.
React, JavaScript, TypeScript
3mo
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Senior Frontend Engineer
Toronto, Ontario, Canada
$140k-$175k/yr HybridFull Time
Forma.ai
Forma.ai: AI-powered platform for managing enterprise sales compensation and performance.
Frontend engineer with React, TypeScript, JavaScript; data-heavy, configurable UIs; dashboards and BI experience; strong UX and collaboration skills.
React, TypeScript, JavaScript, SASS, Jest, Cypress, AWS, Docker, Java, Django, Postgres, Python
1mo
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Senior Frontend Engineer, Platform
San Francisco or Toronto or United States or Canada
$190k-$249k/yr RemoteFull Time
EvenUp
EvenUp: AI-powered document generation and analysis for personal injury law.
5+ YOE5+ years engineering experience, building production-quality software; ownership of projects end-to-end; experience with frontend systems for deploying LLM-based algorithms; strong communication, mentoring, and cross-team collaboration skills.
LLM, Kubernetes
2mo
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Senior Software Engineer, Frontend
Toronto, Ontario, Canada
HybridFull Time
Harvey
Harvey: AI platform for legal research and document analysis.
4+ YOE4+ years post-BS/MS frontend-focused experience; strong React, TypeScript, and CSS (Tailwind CSS) skills; experience shipping user-facing features, cross-stack collaboration, and strong CS/programming fundamentals.
React, TypeScript, Tailwind CSS, Slack
1mo
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Senior Software Engineer, Frontend (Web)
Toronto, Ontario, Canada
$104k-$156k/yr HybridFull Time
Okta
OktaNASDAQ: OKTA: Provide secure identity management and authentication for enterprises.
5+ YOE5+ years frontend/full-stack experience with Next.js, React, and TypeScript; strong CSS and accessibility practices; headless CMS integration; testing, Git and CI/CD; performance and SEO expertise; familiarity with AI-assisted development tools.
Next.js, React, TypeScript, GraphQL, REST, Figma, styled-components, Emotion, Framer Motion, GSAP, Three.js, WebGL, Contentful, AEM, Sanity, Claude Code, GitHub Copilot, Cursor, Git, CI/CD
2mo
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Software Development Engineer | Frontend
Toronto, Ontario, Canada
$100k-$130k/yr OnsiteFull Time
Picton Mahoney
Picton Mahoney: Specialized investment firm managing alternative and traditional asset portfolios.
7+ YOE7+ years web development experience; expert HTML/CSS, React and Next.js; TypeScript/JavaScript, Node.js, REST/GraphQL; headless CMS (Contentful preferred); accessibility (WCAG 2.1 AA); Azure and CI/CD experience.
Next.js, React, Contentful, Sanity, Strapi, TypeScript, JavaScript, Node.js, REST, GraphQL, Git, CI/CD, Azure, Azure Front Door, GA4, Google Tag Manager, HTML, CSS, WCAG 2.1 AA, Schema.org
1mo
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Software Engineer, Frontend - Lyft Urban Solutions
Toronto, Ontario, Canada
$108k-$135k/yr HybridFull Time
Lyft
LyftNASDAQ: LYFT: Provides an on-demand ride-hailing and multimodal transportation platform.
3+ YOE3+ years software engineering experience; advanced JavaScript; experience with React, NodeJS/Express, design systems, testing, and web performance; strong communication and problem solving.
JavaScript, React, NodeJS, Express, Bootstrap, Salesforce Lightning, GitHub Primer
3mo
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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
2mo
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Staff Frontend Engineer
Toronto or Canada
$175k-$200k/yr HybridFull Time
Bettermode
Bettermode: Builds branded online community platforms for customer engagement.
Deep expertise in TypeScript and React (Next.js), experience building production web apps, integrating LLMs/AI into UIs, product-minded development, and mentoring other engineers; multi-tenant experience preferred.
TypeScript, React, Next.js, Claude Code, Cursor, LLM
1d
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Frontend Delivery Engineer
Toronto, Ontario, Canada
$25-$32/hr RemoteFull Time, Contract
LinkGraph
LinkGraph: Full-service digital marketing agency and SEO software provider.
5+ YOERequires 5+ years of frontend development, 2+ years owning project outcomes, Next.js, Shopify, WordPress, headless CMS, QA, AI tools, ClickUp, and reliable EST overlap.
Next.js, Shopify, WordPress, Liquid, Claude, Codex, Kimi, ClickUp
18h
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Senior Angular Frontend Developer
Toronto or Mississauga or North York or Richmond Hill
$102k-$124k/yr HybridFull Time
Intact Financial
Intact FinancialToronto Stock Exchange: IFC: Provides property and casualty insurance to individuals and businesses.
Deep Angular and TypeScript expertise; scalable frontend architecture, Jest testing, REST APIs, accessibility, performance, CI/CD, debugging, code reviews, and cross-team technical leadership required.
Angular, TypeScript, Angular Material Design, Tailwind CSS, OAuth2, CI/CD, Jest, React, Vue, REST APIs, WCAG, Devin, Cursor, IntelliJ, Visual Studio, Windsurf
1mo
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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
2mo
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Frontend Engineer (Post Grad, Remote-First)
Toronto, Ontario, Canada
RemoteFull Time
Over99
Over99: Crypto-first online casino and iGaming platform operator.
Recent graduate or early-career frontend engineer with strong fundamentals in React, TypeScript, JavaScript, HTML/CSS, experience or interest in real-time systems (Socket.IO/WebSockets), state management, and AI-assisted tooling.
React, TypeScript, JavaScript, HTML, CSS, Vite, Vue 3, Tailwind CSS, Sass, React Query, Vue Query, Pinia, Vuex, Socket.IO, WebSockets, Node.js, PostgreSQL, Redis, RabbitMQ, Cursor IDE, LLMs, MCP integrations, Matter.js, GSAP, Howler, Datadog, AWS, CI/CD Pipelines, Docker, Git
1mo
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Staff Frontend Engineer
Toronto, Ontario, Canada
$160k-$250k/yr HybridFull Time
US Mobile
US Mobile: A mobile virtual network operator providing flexible cell phone plans.
8+ YOE8+ years front-end experience; proficiency in TypeScript, React, state management, accessibility, responsive design; experience with complex legacy code and cross-platform UIs.
React, TypeScript, CSS-in-JS, Tanstack Query, Redux, Zustand, React Native, Rust
1mo
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Senior Software Developer (Front End)
Toronto, Ontario, Canada
$120k-$150k/yr HybridFull Time
Interac
Interac: Operates Canada's national debit and digital payment network.
5+ YOE5+ years front-end experience with Angular (6+), strong HTML5/CSS3/JavaScript/TypeScript skills, university degree in Computer Science or equivalent, experience with testing, CI/CD, Git, and cloud-native design.
Angular, HTML5, CSS3, SASS, LESS, Bootstrap, Foundation, Materialize, JavaScript, ES5, ES6, TypeScript, Redux, Webpack, Angular CLI, Gulp, REST APIs, Jest, Jasmine, Karma, Chai, Git, JIRA, GitHub, Jenkins, Java, Docker, Kubernetes, WebAuthN, OAuth2
21h
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Front End Engineer
San Francisco or Toronto or Canada
RemoteFull Time
Power
Power: Consumer-grade platform for patients to navigate clinical trials.
Build large product features, shape technical direction, work autonomously, and contribute to engineering culture, hiring, product development, and engineering excellence.
React, NextJS, TypeScript, AWS, FlightControl, GitHub, Linear, Google Cloud
1mo
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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
1d
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Front-end Developer
Toronto, Ontario, Canada
HybridFull Time
Reactiv
Reactiv: Platform for merchants to build mobile shopping apps.
2+ YOERequires React, TypeScript or strong JavaScript, UI component experience, accessibility awareness, problem-solving skills, and roughly 2–4 years building web or mobile applications or equivalent portfolio work.
React, TypeScript, JavaScript, React Native, Next.js, React Router, Remix, Redux, Zustand, Context API, Vite, Webpack, Babel, npm, yarn, styled-components, Emotion, Jest, React Testing Library, RESTful APIs, GraphQL, Postgres, Shopify