83 fastapi developer jobs at 46 companies in Newfane, NY
2w
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Software Engineer
Toronto or New York City
RemoteFull Time
1+ YOE1-4 years full-stack web development experience; proficiency with TypeScript, React, Python/FastAPI, Postgres, AWS; experience with APIs, state machines, and customer-facing iteration.
TypeScript, React, Python, FastAPI, Postgres, AWS
2d
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Full Stack Developer Advanced
Toronto, Ontario, Canada
$90k-$110k/yr OnsiteFull Time
8+ YOERequires Python, FastAPI, RESTful API design, TypeScript, Angular 19+, AG Grid, GitHub Copilot, scalable API development, and strong communication and problem-solving skills.
Python, FastAPI, GitHub Copilot, TypeScript, Angular, AG Grid
1mo
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Senior Software Developer
Edmonton or Toronto
$79k-$114k/yr OnsiteFull Time
5+ YOE5+ years software development experience; expert Python (Django/FastAPI/Flask); front-end experience (Angular, HTMX, Alpine.js); PyTest, Playwright, Locust.io; Oracle, MS-SQL Server, PostgreSQL; Docker and Kubernetes/OpenShift; Bachelor’s in Computing Science required.
Python, Django, FastAPI, Flask, Angular, HTMX, Alpine.js, PyTest, Playwright, Locust.io, Oracle, MS-SQL Server, PostgreSQL, Docker, Kubernetes, OpenShift, Java, JSF, ADF, C#
1mo
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Senior Software Engineer - Python
Toronto or San Francisco
$130k-$225k/yr RemoteFull Time
5+ YOE5+ years software development with production-level Python, enterprise SaaS/scale experience, proficiency with Python, Git, FastAPI, Pydantic, strong communication and mentorship skills, and unrestricted right to work in the U.S.
Python, Git, FastAPI, Pydantic
1w
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Software Engineer (Python) - PricingCenter
Mississauga or Toronto
$106k-$132k/yr HybridFull Time
4+ YOE4+ years professional software development experience; strong Python backend skills, cloud experience (AWS/GCP/Azure), familiarity with FastAPI/Flask, SQLAlchemy, Pydantic, containerization, CI/CD, and strong communication.
Python, Flask, FastAPI, SQLAlchemy, Pydantic, Celery, Docker, Kubernetes, Github Actions, Postgres, Redis, TypeScript, React, NumPy, pandas, Polars, AWS, GCP, Azure, LLMs, Claude, Copilot
2mo
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AI/ML Engineer (Senior Associate) - Remote
Chicago or Toronto or United States or Canada
$130k-$160k/yr RemoteFull Time
3+ YOE3+ years AI/ML development experience, Bachelor’s in CS/Engineering/Data Science, proficiency in Python, familiarity with scikit-learn/PyTorch/TensorFlow/OpenAI APIs, cloud platforms (Azure, AWS) and Docker, API development experience (FastAPI/Flask).
Python, scikit-learn, PyTorch, TensorFlow, OpenAI APIs, LangGraph, AutoGen, CrewAI, FastAPI, Flask, Azure, AWS, Docker, vector databases, Azure Machine Learning, AWS SageMaker, Google AI/ML services, MLOps, CI/CD, MCP
3w
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Senior AI Full Stack Engineer
Toronto or Halifax
$110k-$120k/yr HybridFull Time
6+ YOEBachelor's in CS or equivalent,6+ years software development,2+ years building GenAI/LLM apps,experience with Dagster,dbt,Python,FastAPI,React,TypeScript and RAG/LLM integrations; strong communication and Agile experience.
Dagster, dbt, Python, FastAPI, React, TypeScript, TanStack, TailwindCSS, Model Context Protocol (MCP), RAG, LLM, Docker, Kubernetes, CI/CD, GitHub Actions, PostgreSQL, Snowflake, Databricks, Azure, AWS
2mo
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Principal Full-Stack Software Engineer
Toronto, Ontario, Canada
$146k-$183k/yr HybridFull Time
7+ YOE7+ years in software/platform engineering or architecture; hands-on with Python (FastAPI), JavaScript/TypeScript (ReactJS), API design, SQL, cloud platforms (Azure/AWS/Google Cloud); experience leading enablement teams and improving developer productivity.
Python, FastAPI, JavaScript, TypeScript, ReactJS, SQL, Azure, AWS, Google Cloud, SonarCloud, LinearB, Datadog, Backstage
1mo
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Principal Engineer, CoCounsel
Eagan or Frisco or New York City or Toronto or Ann Arbor or San Francisco or Los Angeles or Irvine or McLean or Washington
$159k-$295k/yr HybridFull Time
Bachelor's degree (or equivalent) in CS or CE, deep Python and distributed systems experience, hands-on AI/LLM and agent experience, FastAPI/PostgreSQL/AWS familiarity, identity/IAM (SAML, OIDC, OAuth 2.0) expertise, strong communication.
Python, FastAPI, PostgreSQL, AWS, SSO, SAML, OIDC, OAuth 2.0, RBAC, ABAC, Anthropic, OpenAI, LLMs, MCP servers, vector databases, embeddings, semantic search
1mo
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Sr. AI Engineer
Toronto or Newfoundland and Labrador or Alberta or British Columbia or North Dakota or New Brunswick or Nova Scotia or Oakville or Ottawa or Calgary
$91k-$114k/yr OnsiteFull Time
6+ YOE6+ years technical experience; strong Python and frameworks (Flask, langchain, llamaindex, FastAPI); Azure OpenAI and LLM experience; CI/CD, Docker/Kubernetes, Terraform, Azure API Management; prompt engineering and RAG/indexing expertise.
Python, Flask, langchain, llamaindex, FastAPI, Microsoft Azure OpenAI Service, Microsoft Azure API Management, Microsoft Azure DevOps, Jenkins, CircleCI, GitLab Actions, Docker, Kubernetes, Microsoft PromptFlow, Microsoft Azure AI Search, Terraform, RESTful API
1mo
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Full Stack Engineer
New York or Toronto
HybridFull Time
4+ YOE4+ years full-stack/API experience; strong Python, SQL, JavaScript/TypeScript, React/Next.js; experience with FastAPI, LLM inference pipelines, and frontend tools like TailwindCSS and state/query libraries.
Python, FastAPI, Next.js, React, JavaScript, TypeScript, TailwindCSS, Redux, Zustand, TanStack Query, SWR, SQL, LLM
1mo
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Senior Software Engineer, Backend
Toronto, Ontario, Canada
$120k-$160k/yr HybridFull Time
5+ YOE5+ years backend experience, career-focused on Python; production experience with Django or similar (FastAPI/Flask); PostgreSQL, REST APIs, Celery, Redis, Git; strong debugging, ownership, and scalability skills.
Python, Django, FastAPI, Flask, PostgreSQL, REST APIs, Celery, Redis, Git, AWS, NumPy, pandas
2mo
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Principal Full-Stack Software Engineer
Toronto, Ontario, Canada
$146k-$183k/yr HybridFull Time
7+ YOE7+ years in software/platform engineering/architecture; strong Python (FastAPI), JavaScript/TypeScript (ReactJS); API design; DB design and SQL; cloud (Azure/AWS/GCP); leadership in enablement; internal developer platforms; experience with SonarCloud/LinearB/Datadog preferred.
Python, FastAPI, JavaScript, TypeScript, ReactJS, SQL, Datadog, SonarCloud, LinearB, Backstage
4d
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Staff AI Application Engineer
Toronto, Ontario, Canada
OnsiteFull Time
5+ YOE5+ years of software engineering experience, including 2+ years with Python backend services and Django or FastAPI. Requires Celery, API security, Kubernetes/OpenShift, CI/CD, and GenAI application experience.
Python, Django, FastAPI, Celery, LangChain, LangGraph, OpenShift Container Platform (OCP), Kubernetes, Helios, OAuth2, JWT, OpenTelemetry, Langfuse, LangSmith, Claude Code, Cursor, Windsurf, Devin, PostgreSQL, Redis, pgvector, FAISS, Milvus, Vue.js, React, OpenAI, Anthropic Claude, Cohere, Llama, Grafana, Prometheus, SAST, DAST, Docker, RESTful APIs
2mo
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Senior AI Engineer
Zurich or Toronto or New York City or London or Berlin or Manila or Tokyo
HybridFull Time
5+ YOE5+ years software engineering experience with 2–3 years building AI agents; experience with LangChain/LangGraph, Model Context Protocol (MCP)/FastMCP, Databricks or Snowflake, Python, FastAPI, Postgres, gRPC, AWS, and observability tools (LangSmith/LangFuse). Master's preferred; valid work permit required.
Model Context Protocol (MCP), FastMCP, Databricks, Snowflake, LangChain, LangGraph, LangSmith, LangFuse, Python, FastAPI, gRPC, Postgres, SQLAlchemy, AWS, AWS Bedrock, Bedrock AgentCore, Kubernetes, Claude Code, Cursor
2mo
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Senior Software Development Engineer (Full Stack)
Vancouver or Toronto
$140k-$210k/yr HybridFull Time
8+ YOE8+ years software engineering; 5+ years with web frameworks (Python: Flask/Django/FastAPI) and relational DBs (PostgreSQL); experience with cloud (AWS), distributed systems, CI/CD, containerization (Docker, Kubernetes), Elasticsearch; strong communication and mentoring skills.
Python, Flask, Django, FastAPI, PostgreSQL, AWS, Docker, Kubernetes, Elasticsearch, Java, TypeScript, CI/CD
1mo
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Software Developer
Tonawanda, New York, United States
$77k-$112k/yr OnsiteFull Time
7+ YOEBachelor's in CS or related, 7+ years software development, full-stack expertise (frontend SPA, backend Python), system architecture, relational DB design, mentorship, and willingness to travel up to 20%.
Vue.js, Python, FastAPI
3w
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Senior Full Stack Software Engineer
Toronto, Ontario, Canada
HybridFull Time
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
1mo
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Senior Software Engineer - Python (Toronto, ON, CA)
Toronto, Ontario, Canada
$130k-$180k/yr HybridFull Time
7+ YOE7+ years professional software engineering with Python; experience building Python backend services, APIs (FastAPI/asyncIO), data pipelines, event-driven systems (Kafka/RabbitMQ/AWS SQS), AWS, CI/CD, databases (Postgres/Oracle/MongoDB), and mentoring engineers.
Python, FastAPI, asyncIO, Apache Kafka, RabbitMQ, AWS SQS, AWS Lambda, EC2, ECS, EKS, S3, RDS, DynamoDB, IAM, LLMs, cloud AI APIs, GitHub, GitHub Actions, GitHub workflows, Docker, Kubernetes, Jenkins, CodePipeline, dbt (Data Build Tool), Airflow, OpenAI, AWS Bedrock, PostgreSQL, Oracle, MongoDB, Redis, Elasticsearch, Terraform, AWS CDK, CloudFormation, Apache Spark, Datadog, Grafana, OpenTelemetry, Qlik Sense, Microsoft Power BI, Amazon Quick
2w
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AI Developer (LLM & Agentic Systems)
Toronto or Calgary or Vancouver
$94k-$138k/yr OnsiteFull Time
5+ YOE5+ years software development experience with 2+ years designing and deploying LLM or agentic AI systems; degree in CS/software engineering; experience with embeddings, vector search, RAG, cloud-native development (Azure), and CI/CD.
LLMs, RAG, embeddings, vector search, Python, FastAPI, Node.js, Azure, SPARQL, Cypher, Docker, Kubernetes, Git, CI/CD
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