51 react developer jobs at 37 companies in Tonawanda, NY

PromotedHiringCafe
Founding Full-stack / Product Engineer
Cupertino, CA, US
$130k-$300k/yr On-SiteFull Time
HiringCafe
HiringCafe: Building a 100× better job search engine to take on Indeed and LinkedIn.
Help us build a 100× better job search engine. We need a full-stack engineer with great taste, sharp fundamentals, and a track record of shipping polished product on React/Next.js plus a real backend (Firebase, Elasticsearch, Redis, Stripe).
React, Next.js, TypeScript, Firebase, Elasticsearch, Redis, Stripe
1w
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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
1mo
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Android Developer
Toronto, Ontario, Canada
HybridFull Time
CBC/Radio-Canada
CBC/Radio-Canada: National public broadcaster providing radio, television, and digital services.
Android development experience with Kotlin; familiarity with cross‑platform tech (Kotlin Multiplatform or React Native); Kotlin and native Android development; knowledge of APIs and third-party integrations.
Kotlin, Kotlin Multiplatform, React Native, Swift, Android, Bitbucket, Appium, CircleCI, Firebase, APIs
3w
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Software Engineer II
Toronto or Quebec or Canada
$100k-$115k/yr RemoteFull Time
commonsku
commonsku: Connected workflow platform for the promotional products industry.
3+ YOE3+ years professional software development; experience with PHP, Python, React, API development, relational databases, cloud platforms (AWS), containerization (Docker, ECS Fargate), and modern CI/CD; SaaS experience preferred.
PHP, Python, React, MySQL (Aurora), AWS, Snowflake, Symfony, ECS Fargate, Docker, OpenAI, Gemini, New Relic, Datadog, CI/CD
2mo
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Full Stack Engineer
Redwood City or Toronto
$150k-$1000k/yr OnsiteFull Time
8090 Solutions
8090 Solutions: A software-focused delivering hosted software for customers.
Full-stack web development experience using Python, TypeScript, React, and AWS; strong communication; end-to-end ownership; on-site in Redwood City or Toronto.
Python, TypeScript, React, AWS, GitHub Actions, Docker, AWS CDK
2mo
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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
3w
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Senior Front End Developer
Toronto, Ontario, Canada
$100k-$142k/yr HybridFull Time
Moneris
Moneris: Processes merchant payments and provides point-of-sale commerce solutions.
Bachelor's in CS or equivalent; proven experience with React, TypeScript, and React Native; GitHub/GitHub Actions; automated testing (unit/API/UI); designing secure, scalable applications; Agile experience and strong communication.
React, React Native, TypeScript, GitHub, GitHub Actions, Kotlin, Swift, Android
2mo
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Senior Developer, Fullstack - Identity and Access Management (IAM)
Ottawa or Toronto or Calgary
$125k-$165k/yr RemoteFull Time
Fullscript
Fullscript: Healthcare platform for practitioner supplement dispensing and patient management.
5+ YOE5+ years software development; IAM, authentication, authorization, SSO, OAuth; Ruby on Rails, React, JavaScript/TypeScript, GraphQL; collaborative, security-minded.
Ruby on Rails, React, JavaScript, TypeScript, GraphQL, Apollo
1mo
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Senior Full Stack Developer
Toronto, Ontario, Canada
OnsiteFull Time
Royal Bank of Canada
Royal Bank of CanadaTSX: RY: Provides personal, commercial, and investment banking services worldwide.
4+ YOE4+ years developing and shipping production code; front-end with HTML/CSS, React, JavaScript/TypeScript; back-end with Python and relational databases (PostgreSQL); APIs, authentication, Git, CI/CD, Ansible, automated testing, ML/AI frameworks; experience building scalable, fault-tolerant systems.
HTML/CSS, React, Front-End Framework/Libraries, JavaScript, TypeScript, Python, PostgreSQL, Git, CI/CD, Ansible, Machine Learning/AI Frameworks, N8N, Tines, Databricks, Jira
1mo
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Software Engineer
Toronto, Ontario, Canada
$125k-$175k/yr HybridFull Time
Sanofi
SanofiEuronext Paris: SAN: Researches, develops, and manufactures medicines and vaccines globally.
4+ YOE4+ years experience; Bachelor's in CS/Engineering preferred; cloud (AWS/GCP/Azure); Terraform/AWS CDK; Node.js; React; microservices; CI/CD; cloud security; DevOps.
Node.js, TypeScript, JavaScript, React, Terraform, AWS CDK, AWS, GCP, Azure, CI/CD, Microservices, Cloud security
1mo
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Software Developer (264358)
Toronto, Ontario, Canada
OnsiteFull Time
Scotiabank
ScotiabankToronto Stock Exchange: BNS: Provides global personal, commercial, and investment banking services.
3+ YOE3+ years React.js and JavaScript experience, proficiency with HTML5/CSS3/SCSS, Redux/Flux, NodeJS, front-end optimization, mobile web/PWA, testing with Jest/React Testing Library/Playwright/Cypress, cloud (GCP or Azure) or microservices experience, and a bachelor's in a technical field.
React.js, JSX, Redux, Flux, Immutable.js, JavaScript, HTML5, CSS3, SCSS, EcmaScript (ES6+), NodeJS, Yarn, NPM, PWA, GCP, Azure, Accessibility for Ontarians and Disability Act (AODA), Jest, React Testing Library, Playwright, Cypress, Webpack, Babel, RESTful APIs, GraphQL, ExpressJS, Java, JSON Web Token, Git, Bitbucket, Continuous Integration
2d
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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
2d
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Senior Full Stack Developer
Toronto, Ontario, Canada
$120k-$145k/yr HybridFull Time
Konrad Group
Konrad Group: Provides digital strategy, design, and software development services.
5+ YOE5+ years building production web applications; strong JavaScript skills; experience with TypeScript, Node.js, Next.js; front-end framework experience (React/Angular); knowledge of web architecture and core web principles.
JavaScript, TypeScript, Node.js, Next.js, React, Angular, Gatsby, Remix.js, Wordpress, AEM, Sitefinity, AWS, Google Cloud, Azure, GraphQL, ElasticSearch, Serverless
1mo
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Senior Software Engineer
Toronto or Alberta or British Columbia or Manitoba or New Brunswick or Newfoundland and Labrador or Nova Scotia or Ontario or Prince Edward Island or Saskatchewan
$95k-$145k/yr RemoteFull Time
Applied Systems
Applied Systems: Develops cloud software for the global insurance industry.
8+ YOE8+ years software engineering experience; expertise in C#, .NET or Golang and React; proficiency with JavaScript/TypeScript, UI/API testing (RestSharp, Cypress), CI/CD, unit and E2E testing; strong communication and mentoring skills.
React, Golang, C#, .NET, JavaScript, TypeScript, RestSharp, Cypress, CI/CD, E2E
3w
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Senior Developer, Digital Development
Toronto, Ontario, Canada
HybridFull Time, Contract
CBC/Radio-Canada
CBC/Radio-Canada: Canada's national public broadcaster providing multimedia news and entertainment.
Experienced software developer with JavaScript/TypeScript, Node.js and React.js expertise; test automation (Jest), cloud/container (OpenShift, Docker, Kubernetes), CI/CD (Jenkins) and SDLC knowledge. Computer Science/Engineering degree preferred.
JavaScript, TypeScript, Node.js, React.js, Jest, OpenShift, Docker, Kubernetes, Jenkins, Conductrics, GraphQL, Elasticsearch
2w
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Lead Software Engineer AI (Staff Engineer)
Eagan or Frisco or Toronto or Ann Arbor
$127k-$237k/yr HybridFull Time
Thomson Reuters
Thomson ReutersNASDAQ: TRI: Provides professional software, data, and news services globally.
5+ YOEBachelor's degree or equivalent, 5+ years full-stack experience building scalable cloud applications; expertise in C#/.NET, backend architecture, APIs, distributed systems, and AI integration (LLMs, OpenAI/Anthropic); front-end skills (JavaScript/Typescript, Angular/React); AWS, PostgreSQL/SQLServer, CI/CD.
C#, .NET, ASP.NET Core, FastAPI, SQLServer, PostgreSQL, AWS, Vercel, JavaScript, Typescript, HTML, CSS, Angular, React, GitHub Actions, OpenAI, Anthropic, LLMs
2w
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Lead Software Engineer, AI & Emerging Tech
Toronto, Ontario, Canada
OnsiteFull Time
CPP Investments
CPP Investments: Professional investment management organization for the Canada Pension Plan.
6+ YOE1+ Mgmt6+ years engineering experience, 1–2 years leading AI/ emerging tech initiatives; hands-on coding in Python and React, AWS cloud, Gen AI, DevSecOps, containerization, and AI/ML system design.
Python, React, Amazon Bedrock, LangChain, LlamaIndex, Hugging Face, PandsAI, GPT, Claude, Gemini, Copilot, Next.js, TypeScript, JavaScript, AWS EC2, ELB/GLB/NLB, EKS, Fargate, Lambda, Athena, Glue, Lake Formation, Puppet, Terraform, Docker, Apache Airflow, Weaviate, Milvus, PGVector, Neo4J, Neptune, NumPy, Pandas, Matplotlib, Boto3, Ragas, Playwright, Zephyr, Selenium, JIRA, Confluence, JIRA Align, QuickSight, Tableau
1mo
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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
1mo
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MTS 2 Full Stack Engineer
Toronto, Ontario, Canada
HybridFull Time
eBay
eBayNASDAQ: EBAY: Global online marketplace for buying and selling diverse products.
10+ YOEBS/BA in CS or related; 10+ years full-stack experience with TypeScript, Node.js, and React; strong backend, API (REST/GraphQL), database, CI/CD, testing, observability skills; mentoring and cross-functional collaboration.
TypeScript, Node.js, React, REST, GraphQL, CI/CD
2mo
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Software Engineer, Full-Stack Applications - Ratings Technology (Toronto, ON, CA)
Toronto, Ontario, Canada
$100k-$150k/yr HybridFull Time
Fitch Group
Fitch Group: Provides global credit ratings and financial market research services.
7+ YOE7+ years of full-stack enterprise software experience; strong backend (Java/Spring Boot, Python) and frontend (React) skills; cloud, DevOps, and data knowledge.
Java, Spring Boot, Maven, Python, FastAPI, Flask, ReactJS, Node.js, AWS, Kubernetes, GitHub Actions, PostgreSQL, Oracle, MongoDB, Kafka, PySpark, Parquet, Avro, Apache Airflow, Streamlit, Bash
2d
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Senior Full Stack Software Engineer
Toronto, Ontario, Canada
HybridFull Time
Kraft Heinz
Kraft HeinzNasdaq: KHC: Produces and sells packaged food and beverage products globally.
5+ YOE5+ years software engineering experience; strong with React and TypeScript, Python (FastAPI), SQL; cloud experience (Azure preferred); automated testing, CI/CD, and strong communication skills; English fluency required.
React, TypeScript, Python, FastAPI, JavaScript, SQL, Azure