713 javascript jobs at 333 companies in Niagara Falls, NY

1mo
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Full Stack JavaScript Developer
Toronto, Ontario, Canada
HybridFull Time
Viv Technologies
Viv Technologies: Enterprise software platform for multi-site home care operators.
3+ YOEMinimum 3 years JavaScript experience; familiarity with React, Node.js, MongoDB; experience with Git and agile development; strong coding, testing, and collaboration skills.
JavaScript, React, Node.js, MongoDB, Git
2d
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Remote JavaScript/React Engineer
Toronto or United States
$200-$300/hr RemoteContract
Turing
Turing: AI-powered platform connecting companies with global remote software developers.
3+ YOE3+ years software engineering experience, strong systems/infrastructure or backend skills, proficiency in JS, Python, C/C++, Rust, Go, Java, experience evaluating and refining AI-generated code, US-based candidates required.
Python, C/C++, Rust, Go, Java, JavaScript, ReactJS
3mo
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Senior Software Engineer (Frameworks), JavaScript SDK
Toronto, Ontario, Canada
$200k-$295k/yr HybridFull Time
Sentry
Sentry: Developer platform for error tracking and performance monitoring.
5+ YOE5+ years of software engineering experience; strong JavaScript/TypeScript skills; experience with multiple JS frameworks; excellent English communication; eligible to work in Toronto area.
TypeScript, JavaScript, React, Next.js, Vue, Nuxt, NestJS, Hono
1mo
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Senior Software Developer (Full-stack JavaScript) (260116)
Toronto, Ontario, Canada
OnsiteFull Time
Scotiabank
ScotiabankToronto Stock Exchange: BNS: Provides global personal, commercial, and investment banking services.
5+ YOE5+ years building enterprise JavaScript stacks with Node.js and React.js; experience with NoSQL (Redis, MongoDB), container orchestration (Cloud Foundry/Kubernetes), OAuth2/SSO, CI/CD, REST APIs, and modern JS toolsets (ES6, TypeScript, Jest).
Node.js, React.js, JavaScript, Redis, MongoDB, Cloud Foundry, Kubernetes, OAuth2, SSO, CI/CD, REST API, ES6, TypeScript, Babel, Lerna, Jest, Protractor, Microservices
3mo
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QA SOFTWARE TESTER I (HYBRID)
Toronto or London or Montreal or Ottawa or Quebec City
HybridFull Time
GreenShield
GreenShield: Integrated health insurance and digital healthcare services provider.
1+ YOE1-2 years QA experience; mobile and web app testing; automation with Appium, Cypress, Postman, JavaScript.
Appium, Cypress, Postman, JavaScript, RestAssured, GitHub, Jira, TestRail
3mo
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Senior Software Developer - Configuration
Toronto, Ontario, Canada
HybridFull Time
TELUS Health
TELUS HealthToronto Stock Exchange: T: Digital health and wellbeing solutions for individuals and organizations.
5+ YOESenior software developer with 5+ years of experience; proficient in .NET, C#, SQL, JavaScript/TypeScript, Angular, DevOps, Agile.
C#, Web API, Microservices, JavaScript, TypeScript, AJAX, MS SQL Server 2019, T-SQL, ASP.NET MVC, NET Core, Angular, AngularJS, NET Framework, Visual Studio, SSRS, Bootstrap, HTML5, WCF/Web Services, XML, JSON, DevOps, Agile
3mo
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Full Stack Developer, Investly
Toronto, Ontario, Canada
$99k-$135k/yr HybridFull Time
Fidelity Canada
Fidelity Canada: Provides investment products and clearing services for Canadian investors.
3+ YOEExperience in Java/JavaScript, React, AWS, and full‑stack development; bachelor’s degree in a related field; 3+ years of experience.
Java, JavaScript, React, Angular, Node.js, AWS, MySQL, JIRA, CI/CD, React Native, Swift, Kotlin, REST, MQ, SOAP, JSON
2mo
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Software Developer
Toronto, Ontario, Canada
$70k-$100k/yr HybridFull Time
ShyftLabs: Builds custom AI and data platforms for enterprise digital transformation.
Design, develop, and maintain full‑stack software; strong Python/JavaScript; frontend/backend; Agile; AI tools exposure.
Python, JavaScript, Java, C++, TypeScript, HTML, CSS, React, Angular, Git, REST, SQL, NoSQL, OpenAI APIs
2mo
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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
2mo
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Marketing & Communications - Web Developer
Buffalo, New York, United States
$65k-$80k/yr OnsiteFull Time
D'Youville University
D'Youville University: A private non-profit university offering undergraduate and graduate programs.
2+ YOE2–5+ years web development in CMS (Drupal preferred); HTML, CSS, JavaScript; SEO and usability; ability to manage multiple projects.
HTML, CSS, JavaScript, Drupal, CMS, Google Analytics, WCAG
2mo
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Coding Instructor
Burlington, Ontario, Canada
$15-$16/hr OnsitePart Time
Code Ninjas
Code Ninjas: Provides after-school coding education for children.
Part-time instructor with knowledge of Scratch, Javascript, Unity; experience with children 7+ is an asset; ability to foster a fun, safe learning environment.
Scratch, Javascript, Lua, Unity
2w
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QA Automation Engineer (Playwright, GCP)
Scarborough, Ontario, Canada
$65k-$115k/yr HybridFull Time
CGI
CGINYSE: GIB: Provides information technology and business consulting services.
7+ YOE7+ years QA experience with Playwright, TypeScript/JavaScript, GCP, CI/CD integration, API and cross-browser testing in Agile environments.
Playwright, Playwright Test, Playwright Reports, TypeScript, JavaScript, Google Cloud Platform (GCP), GCP Cloud Build, Cloud Run, GKE, App Engine, JIRA, Azure DevOps, Postman, Allure, React, Angular, Page Object Model (POM), WCAG
2mo
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Full Stack Developer, Automation & Internal Tools (Remote)
Toronto or Canada
RemoteFull Time
Jumpfactor
Jumpfactor: 8-time Growth500 agency delivering growth for MSP and B2B tech companies.
4+ YOE4+ years full-stack experience; strong in Next.js, React, JavaScript; backend in Python and PHP; WordPress; API, database, and AI integration.
Next.js, React, JavaScript, Python, PHP, WordPress, APIs, AI
5d
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Senior Frontend Engineer - Ostro
Toronto, Ontario, Canada
$130k-$225k/yr RemoteFull Time
Veeva Systems
Veeva SystemsNYSE: VEEV: Cloud-based software solutions for the global life sciences industry.
5+ YOE5+ years building production SaaS frontend applications with deep expertise in React, JavaScript/TypeScript or Tailwind; strong communication and cross-functional teamwork.
React, JavaScript, TypeScript, Tailwind, Material-UI, MobX, React Query, Zustand
3mo
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Senior Web Developer
Toronto, Ontario, Canada
$100k-$120k/yr HybridFull Time
Boyd Interactive
Boyd InteractiveNYSE: BYD: Develops and operates real-money and social online gaming platforms.
8+ YOEFrontend web development in gaming context; HTML5, Canvas, Angular/Ionic, JavaScript/TypeScript; MySQL; REST APIs; security and high transaction systems.
HTML5, Canvas, Angular, Ionic, JavaScript, TypeScript, MySQL, Web Services, Facebook APIs
2mo
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Salesforce Marketing Cloud Manager - Development
Toronto, /, Canada
HybridFull Time
VML MAP
VML MAPNYSE: WPP: Provides marketing automation and personalized digital customer experience solutions.
5+ YOE2+ Mgmt5+ years Salesforce Marketing Cloud development/consulting; strong SQL, AMPscript, JavaScript, HTML/CSS; leadership experience; hands-on technical leader.
Salesforce Marketing Cloud, AMPscript, JavaScript, SQL, HTML, CSS, Adstudio, Social Studio, Einstein
3mo
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Angular Front-End Developer (RxJS, NgRx, Redux) - Operate (Toronto, ON, CA, M5C 3G7)
Toronto, Ontario, Canada
$80k-$120k/yr HybridContract
Deloitte
Deloitte: Global provider of audit, consulting, financial, and tax services.
6+ YOE6+ years front-end development with Angular; strong RxJS, NgRx, Redux; HTML5, CSS3, JavaScript, TypeScript; REST APIs; Git; problem-solving.
Angular, RxJS, NgRx, Redux, HTML5, CSS3, JavaScript, TypeScript, REST APIs, Git, Webpack, Jasmine, Karma
1mo
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Solutions Engineer - Insurance
Toronto or United States
OnsiteFull Time
Feathery
Feathery: AI-powered data intake and workflow automation software.
Customer-facing technical experience, strong JavaScript and basic Python skills, ability to design and implement scalable workflows, excellent communication and problem-solving skills.
JavaScript, Python, Feathery
5d
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Software Developer (Junior to Intermediate)
Mississauga, Ontario, Canada
$72k-$95k/yr OnsiteFull Time
MAD Elevator
MAD Elevator: Manufacturer of elevator fixtures, car interiors, and digital displays.
Bachelor's degree or equivalent, experience with web and desktop apps, proficiency in TypeScript/JavaScript/C#, SQL, API integration, and strong problem-solving and communication skills.
TypeScript, JavaScript, C#, Next.js, React, Python, WPF, WinForms, SQL Server, PostgreSQL, MySQL, REST, GraphQL, Git, Claude Code, GitHub Copilot, HTML5, AWS, Azure, Docker, Aws CodeBuild, GitHub Actions, Elasticsearch, Electron, .NET, .NET 8, Jira, Confluence
1w
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Senior Front-End Engineer
Toronto, Ontario, Canada
$150k-$179k/yr OnsiteFull Time
Rumble
RumbleNASDAQ: RUM: Video sharing platform and cloud infrastructure provider.
Deep expertise in JavaScript/TypeScript, browser fundamentals, component-driven development (Lit preferred), modern bundlers, API integration, and front-end performance optimization.
Lit, TypeScript, JavaScript, Webpack, Vite, Rollup, REST, GraphQL, WebSockets, Git, PHP