13 senior fullstack engineer jobs at 13 companies in Newfane, NY
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Senior Fullstack Engineer - Toronto
Toronto, Ontario, Canada
$125k-$165k/yr HybridFull Time
5+ YOEMinimum 5 years of software engineering; end-to-end feature ownership; backend focus with frontend contribution; strong collaboration; mentoring.
Python, Flask, FastAPI, AWS, Angular, SQL
3mo
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Senior Fullstack Developer, Consumer
Toronto, Ontario, Canada
$120k-$150k/yr HybridFull Time
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
2mo
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Staff Fullstack Engineer
Toronto or Canada
$175k-$200k/yr HybridFull Time
Expert TypeScript/React/NestJS experience, building and integrating LLM-driven features, product-minded engineering, mentorship experience, and working on multi-tenant systems preferred.
TypeScript, React, NestJS, Claude Code, Cursor, Large Language Models (LLM)
3w
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Senior Developer, Fullstack - Identity and Access Management (IAM)
Ottawa or Toronto or Calgary
$125k-$165k/yr RemoteFull Time
5+ YOE5+ years professional software development; experience with IAM, SSO (SAML, OAuth), RBAC, MFA; Ruby on Rails, React, JavaScript/TypeScript, GraphQL and Apollo; strong security and collaboration skills.
Ruby on Rails, React, JavaScript, TypeScript, GraphQL, Apollo, SAML, OAuth
2w
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Fullstack Developer
Toronto, Ontario, Canada
OnsiteFull Time
Experience building enterprise Angular frontend and integrating with backend APIs and AWS; cloud-native development, scalable and secure applications; collaboration and mentoring skills.
Angular, AWS
4d
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Staff FullStack Engineer, Okta Secures AI
Toronto, Ontario, Canada
$160k-$220k/yr HybridFull Time
Staff-level engineer requiring scalable backend architecture, Java or another type-safe language, JavaScript/TypeScript, AWS, web authentication and authorization, complex API integration, and AI-native development expertise.
Java, JavaScript, TypeScript, AWS, CI/CD, MCP, IPSIE, AI Agent Tool Registry, Agent Gateways, SDKs
4d
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Senior Fullstack Engineer
Toronto or British Columbia
$160k-$190k/yr RemoteFull Time
6+ YOEComputer Science degree or equivalent practical experience, 6+ years of experience, strong frontend and backend web development, AI-native tooling, TypeScript, React, Ruby, APIs, PostgreSQL, Redis, testing, and mentoring experience.
TypeScript, React, Chakra, React Hook Form, Ruby, Ruby on Rails, GraphQL, Postgres, Redis, Jest, Cypress, RSpec, Minitest, Buildkite, GitHub, Codex, Claude Code, Cursor, Sidekiq, GoodJob
3mo
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Sr Software Engineer- Fullstack
Toronto, Ontario, Canada
RemoteFull Time
5+ YOE5+ years of software engineering experience; strong Python backend and API development; AWS serverless; IaC and observability; React/TypeScript frontend; collaboration with design/product; AI tools in SDLC.
Python, AWS, API Gateway, Lambda, DynamoDB, Terraform, GitHub Copilot, Cursor
2w
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Fullstack developer with Python, .NET & AI experience
Toronto, Ontario, Canada
$110k-$120k/yr HybridFull Time
6+ YOEBachelor's in CS,6+ years software development,proficient in Python,.NET,JavaScript and modern frontend frameworks,experience with Pandas/NumPy,SQL,REST APIs,cloud (Azure/AWS/GCP),Docker,microservices and AI/ML integrations.
Python, .NET, React, Angular, JavaScript, Pandas, NumPy, SQL, Apache Airflow, Docker, Azure, AWS, GCP, Claude, GitHub Copilot, Cursor, OAuth2, REST APIs
3w
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Senior Software Engineer Fullstack
Ottawa or Toronto
OnsiteFull Time
5+ YOE5+ years building production backend and frontend systems; strong Python and JavaScript/TypeScript; SQL/NoSQL and real-time visualization experience; hardware/embedded integration experience; eligibility for Canadian security clearance.
Python, JavaScript, TypeScript, SQL, NoSQL, CI/CD, AI tools
1mo
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Fullstack Software Engineer (x/f/m) - Care Expert Copilot
France or Belgium or Spain or Toronto
HybridFull Time
5+ YOE5+ years building scalable full-stack systems; backend and frontend experience; experience with React, Python/Flask, PostgreSQL; strong problem-solving and communication.
React, Python, Flask, PostgreSQL
1mo
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Associate Director, Lead Fullstack Developer (React/Node.js)
Toronto, Ontario, Canada
OnsiteFull Time
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
3w
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Java Scala Developer
Toronto, Ontario, Canada
$77k-$120k/yr OnsiteFull Time
5+ YOEFullstack Java enterprise development with Spring Boot, Hibernate/JPA and front-end (Angular/React); 5+ years Scala; SQL/PLSQL and NoSQL experience; API, system design, CI/CD, and strong problem-solving skills.
Java, Scala, Spring Boot, Hibernate/JPA, Angular, React, PL/SQL, SQL, Oracle, MongoDB, AI/ML, LLMs, Elasticsearch, Kafka, GraphQL, OpenShift, Redis, Hazelcast, J2EE, CI/CD