273 fastapi developer jobs at 150 companies in Lake Success, NY
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Senior Full-Stack Developer (React + Python/FastAPI)
Jersey City or Dallas or Tampa
$75k-$150k/yr HybridFull Time
6+ YOE7+ years full-stack experience with React, Python/FastAPI, SQL, Docker, and cloud; strong design, performance, security, and mentoring skills.
React, Python, FastAPI, SQL, Snowflake, Docker, Nginx, AWS EC2
2d
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Remote Backend Engineer (Python/FastAPI)
New York City, New York, United States
$200-$300/hr RemoteContract
3+ YOERequires 3+ years of software engineering experience, strong Python and JavaScript expertise, production deployment experience, software architecture and debugging skills, and excellent written and oral communication.
Python, FastAPI, JavaScript, React, Node.js, C, C++, Java, Rust, Go
1w
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Senior Developer
Hyderabad or New York City
OnsiteFull Time
5+ YOE5+ years in software development and 2+ years in GenAI or NLP; proficiency in Python, FastAPI, asyncio, Hugging Face, OpenAI APIs, LangChain, vector databases, and MLflow.
LangChain, Pinecone, Weaviate, MLflow, Docker, Kubernetes, Python, FastAPI, asyncio, Hugging Face, OpenAI APIs, ChatGPT, GitHub Copilot, Microsoft Teams, CI/CD, RAG
3w
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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
3w
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GEN AI Engineer
Jersey City, New Jersey, United States
$90k-$120k/yr OnsiteFull Time
2+ YOEHands-on Python and API development (FastAPI/Flask), experience with LLMs, prompt engineering, RAG/agentic architectures, LangChain/Hugging Face/Llama Index, and model deployment.
Python, FastAPI, Flask, LangChain, Hugging Face, Llama Index, Gemini, PyTorch, TensorFlow, Keras, Docker, Git
4d
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AI Research Engineer
New York, New York, United States
$180k-$300k/yr OnsiteFull Time
5+ YOERequires 5+ years of software engineering experience, backend development, experimentation, Python, FastAPI, AWS, ECS or Kubernetes, Postgres, S3, and observability tools.
Python, FastAPI, AWS, ECS, Kubernetes, Postgres, S3
2mo
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Senior Software Engineer
New York City or Arizona or California or Colorado or Connecticut or Florida or Georgia or Maine or Maryland or Massachusetts or Michigan or Minnesota or New Jersey or New York or North Carolina or Oregon or Rhode Island or South Carolina or Tennessee or Texas or Virginia or Utah or Wisconsin
$165k-$185k/yr RemoteFull Time
8+ YOE8+ years backend experience with modern Python stack, leadership experience, proficiency in Postgres/SQLAlchemy, AWS, Terraform, FastAPI, React/TypeScript, observability, and familiarity with AI-assisted development.
Python, FastAPI, Pydantic, PostgreSQL, SQLAlchemy, Alembic, Temporal, Redis, AWS RDS, AWS S3, AWS SQS, AWS DynamoDB, AWS ECS, AWS IAM, Terraform, React, TypeScript, Claude Code
2mo
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Product Engineer
London or New York
HybridFull Time
4+ YOE4+ years software development; owned a subsystem end-to-end; strong Python; experience with AI/LLM workflows; translating customer ambiguity; self-motivated learner; familiar with Python, React/NextJS, FastAPI, MongoDB, Redis.
Python, React, NextJS, FastAPI, MongoDB, Redis
1mo
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Forward Deployed Software Engineer
New York, New York, United States
$150k-$250k/yr OnsiteFull Time
Experienced software engineer with API and full-stack development skills, ability to work with data scientists, deploy Python/FastAPI services, and travel to customer sites; authorization for export-controlled technology may be required.
FastAPI, Python, Helm, Kubernetes, Terraform, AWS, Azure
2d
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Senior Forward Deployment Engineer
New York City or San Francisco or Princeton
RemoteFull Time
9+ YOERequires 9+ years of software engineering experience, expertise in full-stack development, data architecture, React, JavaScript/TypeScript, Python, FastAPI, PostgreSQL, Redis, PySpark, AWS, and technical leadership.
React, JavaScript, TypeScript, Python, FastAPI, PostgreSQL, RDS, Aurora, Redis, PySpark, Kestra, AWS, EKS, Kubernetes, GitHub Copilot, Cursor, LLM
3mo
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Sr Software Engineer
New York, New York, United States
HybridFull Time
5+ YOE5+ years Python/JavaScript/TypeScript; energy modeling; optimization; FastAPI; React; PostgreSQL; IoT protocols; SCADA experience.
Python, JavaScript, TypeScript, FastAPI, React, PostgreSQL, Pyomo, HiGHS, Gurobi, GLPK, MQTT, Sparkplug B, AWS IoT Core, Ignition, SCADA
3d
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Senior Python/GenAI Engineer
New York City or Hanover
$105k-$115k/yr OnsiteFull Time
Hands-on Python and GenAI development, MCP, LLM orchestration, RAG, FastAPI, REST APIs, async programming, Git, CI/CD, cloud deployment, security, distributed-system debugging, and regulated technology experience.
Python, MCP, LangChain, LangGraph, FastAPI, REST APIs, Git, CI/CD, AWS
4w
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Software Engineer
New York City, New York, United States
$140k-$180k/yr OnsiteFull Time
2+ YOE2+ years full-stack experience; production Python/FastAPI and TypeScript/Next.js; experience with LLMs, multi-tenant systems, API debugging, and integrating CRMs.
Python, FastAPI, TypeScript, Next.js, React Query, LangGraph, LangChain, Supabase, Postgres, Salesforce, ServiceTitan, LeadPerfection, AccuLynx, LiveKit, Daily.co, Twilio Voice, OpenAI Realtime, Langfuse, LangSmith, Helicone, RLS, JWT
1mo
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Software Engineer
New York, New York, United States
OnsiteFull Time
3+ YOE3+ years building production software; strong Python and/or TypeScript; experience with FastAPI, PostgreSQL, Next.js, Tailwind, APIs, and integrating external services; autonomy and ownership of end-to-end features.
FastAPI, PostgreSQL, Next.js, Tailwind, Figma, Stripe, Auth0, Canopy Connect, Python, TypeScript
2mo
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Senior Python Engineer - Applications Development Sr Programmer Analyst - C12 - RUTHERFORD
Rutherford, New Jersey, United States
$121k-$182k/yr HybridFull Time
8+ YOE8+ years application development, 5+ years Python/PySpark leadership; design and build scalable data pipelines, AI agent deployment, Databricks, Kafka, FastAPI, microservices, data mesh, SQL, and cloud platforms.
Python, FAST API, Microservices, PySpark, pyspark, Kafka, Databricks, Google ADK, Google Flash 2.5+ LLMs, Devin.AI, Github Copilot, MCP, YAML, JSON, Spring boot, Starburst, Cloudera, AWS, Azure, GCP, Angular, React JS, Docker, openshift, Kubernates, CI/CD, SQL
1w
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Senior Python Engineer
New York City, New York, United States
RemoteFull Time
5+ YOE5+ years of professional software engineering experience, advanced Python and FastAPI skills, PostgreSQL and Docker experience, production ML/AI systems experience, and fluent English proficiency.
Python, FastAPI, RAG, PostgreSQL, Docker, CI/CD, Natural Language Processing
4d
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Founding Engineer
New York City, New York, United States
$156k-$182k/yr OnsiteFull Time
2+ YOERequires 2+ years operating production systems, production agentic AI or LLM applications, Python, FastAPI or equivalent, ETL, data modeling, SQL, TypeScript, React, PostgreSQL, AWS, observability, and real-time systems.
Python, FastAPI, TypeScript, React, SQL, PostgreSQL, AWS, dbt, MotherDuck, Turbopuffer, Cloudflare
1w
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Software Engineer II
New York City, New York, United States
$120k-$160k/yr HybridFull Time
3+ YOERequires 3+ years of software engineering experience, full-stack capability, TypeScript, React, Python, FastAPI, databases, APIs, testing, AWS, Docker, and cloud application deployment experience.
React, Next.js, TypeScript, Python, FastAPI, AWS, Docker, Claude Code, Cursor, OpenCode, LLMs, RAG
2mo
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Senior Software Engineer
New York or Israel
HybridFull Time
7+ YOE7+ years building high-performance backend systems; strong Python and FastAPI expertise; experience with PostgreSQL, Redis, GCP, and OpenAI/LLM integrations; architectural leadership and collaboration skills.
Python, FastAPI, PostgreSQL, Redis, OpenAI, GCP, Claude Code, Cursor, Copilot
1mo
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AI Software Developer
New Brunswick, New Jersey, United States
$102k-$137k/yr OnsiteFull Time
5+ YOE5+ years software engineering experience with 3+ years building production-grade AI/LLM applications; strong Python and FastAPI skills; experience with RAG, vector databases, semantic search, multi-agent frameworks, and enterprise integrations.
LangGraph, CrewAI, Semantic Kernel, Model Context Protocol (MCP), Large Language Models (LLMs), Retrieval-Augmented Generation (RAG), vector database, semantic search, Python, FastAPI, Azure AI Document Intelligence, Azure, AWS, Google Cloud, MLOps
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