247 senior full stack engineer jobs at 134 companies in Lockport, NY
1w
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Senior Full-Stack Engineer (Media Team)
Ottawa or Toronto
$120k-$145k/yr HybridFull Time
Senior-level backend or full-stack engineer with strong cloud (AWS) and distributed systems experience, observability knowledge, and service ownership mindset.
AWS, SQS, S3, Lambda, EKS, Redis, CloudFront, OpenTelemetry, Datadog, Grafana, Honeycomb, WebRTC, HLS, RTSP, ffmpeg, Kubernetes, GCP, Azure, TypeScript, Rust
3w
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Senior Full Stack Engineer
Toronto, Ontario, Canada
$120k-$145k/yr HybridFull Time
5+ YOE5+ years full-stack experience with C#/.NET, SQL and Azure; bachelor\u0002s degree in a technical field; strong design, testing, troubleshooting, and communication skills.
C#, .NET, .NET Core, SQL Server, Azure Functions, App Services, Azure SQL, Storage Accounts, Key Vault, Python, Blazor, JavaScript, HTML/CSS, Azure Data Factory, Azure DevOps, Git, CI/CD, REST APIs, Entity Framework
2mo
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Senior Full-Stack Developer
Toronto, Ontario, Canada
$130k-$145k/yr RemoteFull Time
5+ YOE5+ years of full-stack experience; API design; React/TypeScript; AWS; REST; data structures; cross-functional collaboration.
Python, JavaScript/Node.js, Java, .NET, React, TypeScript, REST APIs, PostgreSQL, MongoDB, AWS
1mo
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Senior Engineer- Full stack
Toronto, Ontario, Canada
$99k-$136k/yr OnsiteFull Time
8+ YOE8+ years full stack experience with Java, Spring Boot, Spring Batch, Node.js, React, JavaScript, and SQL; bachelor's degree or equivalent; strong design, secure coding, and mentoring skills.
React, JavaScript, HTML, CSS, Java, Spring Boot, Spring Batch, Node.js, SQL, RESTful APIs, AWS, Azure, Google Cloud, CI/CD
1mo
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Senior Full-Stack Developer
Toronto or Canada
$120k-$160k/yr RemoteFull Time
6+ YOE6+ years building production full‑stack web applications with production experience in Angular, TypeScript, and C#/.NET; Bachelor’s in CS or equivalent experience; ability to own features end‑to‑end and work in a remote, collaborative environment.
Angular, TypeScript, RxJS, NgRx, Angular Material, Tailwind CSS, C#/.NET, Entity Framework Core, PostgreSQL, SQL Server, Redis, Firestore, Google Cloud Platform, Kubernetes, Docker, Terraform, Pub/Sub, Microsoft Azure DevOps, Git, Webpack, Cypress, Playwright, Grafana, REST APIs
2mo
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Senior Full Stack Developer - Web Platform
Toronto or Canada
$65-$85/hr HybridContract
5+ YOESenior full-stack engineer with 5+ years experience; strong TypeScript/JavaScript, NestJS/Express, PostgreSQL, modern frontend (React/Next.js/Vue); AWS/cloud experience; familiarity with Stripe/GTM and AI coding tools (GitHub Copilot, Claude, Codex).
GitHub Copilot, Claude, Codex, TypeScript, JavaScript, NestJS, Express, PostgreSQL, React, Next.js, Vue, Stripe, GTM, AWS
2d
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Senior/Staff Full-Stack Engineer
South San Francisco or Toronto
$150k-$250k/yr HybridFull Time
Deep full-stack experience building frontend, backend, database, deployment, and secure, reliable production applications; strong communication and collaboration in small teams.
2mo
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Senior Developer (Full-stack)
Montréal or Toronto or Quebec
RemoteFull Time
6+ YOE6+ years in SaaS development; strong Angular, TypeScript/JavaScript, Node.js/NestJS; experience with microservices (Azure Service Bus or Kafka), PostgreSQL, CI/CD, IaC, observability, cloud platforms (preferably Azure); mentoring and communication skills.
Angular, Azure Service Bus, Kafka, TypeScript, JavaScript, Node.js, NestJS, PostgreSQL, ELK, Grafana, Prometheus, Sentry, Datadog, New Relic, GitLab, Jenkins, GitHub Actions, Docker, Helm, Terraform, Kubernetes, Azure, AWS, GCP, Graph databases, FHIR
1mo
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Senior Full Stack Engineer, AI
Toronto, Ontario, Canada
$120k-$150k/yr HybridFull Time
5+ YOESeveral years shipping production full-stack web apps; strong TypeScript, Node.js, React/Next.js, SQL/Postgres; end-to-end ownership; AI/agentic workflow experience; disciplined git and testing practices; strong communication and product judgment.
TypeScript, Node.js, React, Next.js, SQL, Postgres, git, LangChain, LlamaIndex, Vercel AI SDK, OpenAI, Anthropic, Gemini
1mo
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Senior Full Stack Developer/Lead
Toronto, Ontario, Canada
$95k-$145k/yr HybridFull Time
10+ YOEBachelor's degree,10+ years full-stack experience with Java (Spring Boot), front-end (React/Angular), cloud (AWS/Microsoft Azure/GCP), microservices, P&C insurance domain knowledge, and AI/ML integration experience.
Java, Spring Boot, Spring Cloud, React, Angular, TypeScript, AWS, Microsoft Azure, GCP, PostgreSQL, MongoDB, Snowflake, Databricks, Spark, Terraform, Kubernetes, CI/CD, Microservices, REST APIs, Generative AI
1mo
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Senior Full Stack Engineer
Toronto or United States or United Kingdom or Canada or India
HybridFull Time
4+ YOE4+ years full-stack development experience with React/NextJS (TypeScript) and backend using Python (Django/FastAPI) or Node.js (Express/NestJS); REST/GraphQL, relational DBs (PostgreSQL/MySQL), cloud (AWS/GCP/Azure), Git and CI/CD (GitHub Actions), agile experience.
React, NextJS, TypeScript, Python, Django, FastAPI, Node.js, Express, NestJS, GraphQL, PostgreSQL, MySQL, AWS, GCP, Azure, Git, GitHub Actions, Redux, Context API, Contentful, Contentstack, Sanity, Shopify, BigCommerce, Saleor, Docker, Kubernetes, Terraform, CDK, Prometheus, Grafana, BigQuery, Snowflake
1mo
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Full Stack Developer
Toronto, Ontario, Canada
OnsiteFull Time
5+ YOE5+ years experience building full-stack web applications using Java/Spring Boot, Python frameworks, React/TypeScript, SQL; strong problem-solving and communication skills.
Java, Spring Boot, SQL, Fast API, Flask, Django, JavaScript, TypeScript, ReactJS, Git, Microsoft Azure, OpenAI, LangChain, vector databases
1mo
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Senior Full-Stack Developer [Risk]
Vancouver or Toronto or Montreal or Phoenix or Canada or United States
$120k-$140k/yr OnsiteFull Time
7+ YOE7+ years SaaS development experience; strong full-stack skills across front-end and back-end; proficient with Java, Python, C#/.NET, React/TypeScript; experience with LangChain/LangGraph, vector databases, SQL, AWS; CI/CD and DevOps familiarity.
Java, C#, .NET, React, TypeScript, Angular, REST APIs, SQL, AWS, Python, LangGraph, LangChain, OpenAI, Vector databases, RAG retrieval, CI/CD, DevOps
3w
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Staff Full Stack Engineer
Calgary or Toronto
OnsiteFull Time
7+ YOE7+ years full-stack engineering experience, deep frontend (React/Angular/Next.js/TypeScript) and backend (Node.js/Python) skills, cloud/CI-CD, databases, testing, and experience integrating AI services.
React, Angular, Next.js, TypeScript, Node.js, Python, Claude, Cursor, Figma, LLM APIs, CI/CD
17h
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Senior Full-Stack Software Engineer
Toronto, Ontario, Canada
$120k-$180k/yr OnsiteFull Time
5+ YOE5+ years full-stack experience with JavaScript/TypeScript and React, Node JS, MongoDB, cloud deployment experience, and experience shipping production software.
React, TypeScript, JavaScript, MongoDB, REST API, Node JS, Google Cloud, Amazon Web Services, Microsoft Azure
3w
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Senior Full Stack Engineer, App Runtime
Toronto, Ontario, Canada
$245k-$295k/yr OnsiteFull Time
5+ YOEBachelor's in CS or related,5+ years frontend/full-stack experience,proficiency with React and TypeScript/JavaScript,experience with Go/Python/Java,knowledge of modern web architecture and API design,strong communication.
React, Go, Python, Java, TypeScript, JavaScript, NextJS, Node.js
1mo
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Senior Full-Stack Developer
Toronto, Ontario, Canada
$140k-$160k/yr HybridFull Time
7+ YOEBachelor's or equivalent, 7+ years software engineering experience, strong JavaScript/TypeScript, NodeJS, GraphQL, SQL/NoSQL, React/NextJS, API and microservices experience, Git, and applied AI familiarity.
JavaScript, TypeScript, NodeJS, GraphQL, SQL, NoSQL, HTML, CSS, React, NextJS, Git, Git flow, Github flow, Java, Kotlin, Python, ML, Data Science
1mo
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Senior Full Stack Software Engineer
Toronto, Ontario, Canada
$113k-$163k/yr HybridFull Time
5+ YOE5+ years full-stack development; strong Java, Spring Boot, Python; experience with Docker, Kubernetes, Azure, SQL Server, Databricks; CI/CD; capital markets and derivatives knowledge; AI/ML integration experience.
Java, Spring Boot, Python, Docker, Kubernetes, Azure, SQL Server, Databricks, Bloomberg, Reuters, Murex, Findur, Aladdin, Azure OpenAI, OpenAI APIs
1mo
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Senior Full-Stack Automation Engineer – Gravity
Toronto, Ontario, Canada
$115k-$176k/yr HybridFull Time
5+ YOEMust be a Canadian citizen based in Canada; 5+ years software engineering with heavy desktop automation experience; expert Python and Node.js; hands-on React, AWS, SQL; AI/ML familiarity; strong client communication.
Python, Node.js, React, AWS, SQL
2mo
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Senior Full-Stack Senior Engineer (Front-End Leaning)
Toronto or San Francisco or New York City or Montreal or London or Paris or Seoul or Germany or United Kingdom or Canada or United States or Europe
RemoteFull Time
Proven experience shipping full-stack production code (Python and React), building performant client- or server-side RAG/agentic applications, strong coding and product thinking, and experience productionizing models under strict security/privacy constraints.
Python, React, GitHub, North
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