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210 fastapi developer jobs at 127 companies in New York

1d
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Backend Engineer (Python/FastAPI)
United States or New York
$200-$300/hr RemoteContract
Turing
Turing: AI research accelerator and intelligent talent cloud platform.
3+ YOERequires 3+ years of software engineering experience, strong Python and JavaScript expertise including React and Node.js, production-scale deployment experience, software architecture knowledge, and strong communication skills.
Python, FastAPI, JavaScript, React, Node.js, C/C++, Java, Rust, Go
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3w
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Senior Developer
Hyderabad or New York City
OnsiteFull Time
New York Stock Exchange
New York Stock Exchange: U.S. stock exchange serving public companies, investors, and trading firms through listings, equity trading, and market data.
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
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1mo
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Software Engineer
Toronto or New York City
RemoteFull Time
Meow
Meow: Private fintech providing business banking, corporate cards, payments, and treasury tools for startups and global businesses.
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
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2w
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AI Research Engineer
New York, New York, United States
$180k-$300k/yr OnsiteFull Time
Traversal
Traversal: Private enterprise software providing an AI SRE platform that troubleshoots, remediates, and prevents production incidents.
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
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1mo
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Forward Deployed Software Engineer
New York, New York, United States
$150k-$250k/yr OnsiteFull Time
PhysicsX
PhysicsX: Private physics-AI software helping industrial engineering and manufacturing teams design and optimize hardware.
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
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1w
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Senior Forward Deployment Engineer
New York City or San Francisco or Princeton
RemoteFull Time
Quantiphi
Quantiphi: AI-first digital engineering helping enterprises solve complex business problems with artificial intelligence, cloud, and data engineering.
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
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1w
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Senior Python/GenAI Engineer
New York City or Hanover
$105k-$115k/yr OnsiteFull Time
Capgemini
CapgeminiEuronext Paris: CAP: Global leader in consulting, digital transformation, and engineering services.
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
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1mo
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Software Engineer
New York City, New York, United States
$140k-$180k/yr OnsiteFull Time
Revin
Revin: AI revenue-automation platform for home-service operators that automates calls, texts, scheduling, and customer follow-up.
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
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Software Engineer
New York, New York, United States
OnsiteFull Time
Eventual
Eventual: Private insurance-operations software automating financial workflows for insurance brokers, agencies, MGAs, and carriers.
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
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Senior Python Engineer
New York City, New York, United States
RemoteFull Time
DeweyLearn
DeweyLearn: DeweyLearn is a private EdTech using multimodal AI to assess performance and improve feedback for educators.
5+ YOERequires 5+ years of professional software engineering experience, strong Python, FastAPI, PostgreSQL, Docker, production ML/AI systems, and fluent English proficiency.
Python, FastAPI, PostgreSQL, Docker, RAG, CI/CD
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2mo
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Senior Software Engineer
New York or Israel
HybridFull Time
Qodo
Qodo: Privately held AI code-review platform that helps software engineering teams review, test, and govern code.
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
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2w
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Software Engineer II
New York City, New York, United States
$120k-$160k/yr HybridFull Time
Hello Patient
Hello Patient: Healthcare AI providing voice, text, and web-chat agents that automate patient communication for healthcare providers.
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
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5d
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Senior Fullstack Engineer
New York City, New York, United States
HybridFull Time
Torch Dental
Torch Dental: Private dental supply software helping independent dental practices order, manage, and budget supplies from multiple vendors.
7+ YOE7+ years of software engineering experience with strong frontend focus; deep React and TypeScript expertise; Python/FastAPI backend experience; TanStack Router and Query experience; strong product judgment.
React, TypeScript, Python, FastAPI, TanStack Router, TanStack Query, Django, Zod
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1w
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Software Engineer II
Glendale or New York City
$118k-$165k/yr HybridFull Time
Disney Streaming
Disney Streaming: Technology subsidiary operating direct-to-consumer streaming services for Disney, Hulu, and ESPN+ audiences.
3+ YOE3+ years building production ML backends and REST APIs; Python, PyTorch or TensorFlow, FastAPI or Flask, data processing, GitHub, Docker, and AWS/EKS. Bachelor's degree or equivalent experience required.
Python, PyTorch, GPU, MLflow, Weights & Biases, PySpark, Pandas, Databricks, GitHub, Docker, AWS, EKS, TensorFlow, Flask, Claude, GPT-4, FastAPI, LangChain, LangGraph, Datadog, Grafana, Conviva, Spark, Snowflake
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4w
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Senior Software Engineer
New York, New York, United States
$137k-$180k/yr HybridFull Time
SOCOTEC
SOCOTEC: Professional services firm specializing in testing, inspection, and certification.
5+ YOE5+ years full-stack experience with React and Python (Django/FastAPI), REST APIs, relational databases, Docker, cloud (AWS/Azure), CI/CD; strong communication and interest in AI/ML.
React, Python, Django, FastAPI, Docker, AWS, Azure, GitHub Actions, OpenAI, Anthropic, LangGraph, LangChain, Pinecone, Weaviate, Databricks, Snowflake, Airbyte, n8n, Zapier, Temporal
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1w
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Lead AI Engineer
Tarrytown or Sleepy Hollow
$110k-$179k/yr OnsiteFull Time
Regeneron Pharmaceuticals
Regeneron PharmaceuticalsNASDAQ: REGN: Biotechnology discovering and developing life-transforming medicines.
7+ YOE3+ MgmtRequires a technical bachelor's, master's, or doctoral degree, 7–10 years of software and AI engineering experience, expert Python and FastAPI skills, AI agent and LLM application experience, and technical team leadership.
Python, FastAPI, LangChain, LangGraph, Strands, CrewAI, Model Context Protocol (MCP), Milvus DB, OpenAI, Anthropic, AWS Bedrock, AWS SageMaker, Amazon EKS, AWS Lambda, Amazon S3, Kubernetes, Docker, Terraform, TensorFlow, PyTorch, OpenAPI, Swagger, Databricks, Dataiku, Postgres, Redis, NoSQL
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2mo
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Software Engineer - Pre-trade analytics, risk, portfolio optimization
New York City, New York, United States
$170k-$220k/yr HybridFull Time
Clear Street
Clear Street: Private financial infrastructure providing cloud-native trading, clearing, custody, financing, and risk tools to sophisticated investors.
5+ YOE5+ years building scalable services in Java (Spring) and/or Python (FastAPI, Pydantic, async); experience with PostgreSQL and Pandas/Polars; familiarity with AI-assisted workflows (Claude Code) and spec-driven development; strong system design and mentorship skills.
Java, Spring Framework, Python, FastAPI, Pydantic, PostgreSQL, Pandas, Polars, Claude Code, gRPC, Redis, Docker, Gradle, uv, AWS, Kubernetes
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2mo
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Senior Software Engineer - Backend
New York or Manhattan or London
$165k-$180k/yr HybridFull Time
Fitch Group
Fitch Group: Global provider of financial information, credit ratings, and analytics.
3+ YOE3+ years software development experience, strong Java (Spring Boot) and/or Python (FastAPI) skills, SQL experience, cloud (AWS) familiarity, REST API and distributed systems experience, testing and CI/CD knowledge, bachelors preferred.
Java, Spring Boot, Python, FastAPI, SQL, PL/SQL, AWS, Kubernetes, EKS, Docker, Kafka, Redis, MongoDB, GitHub Actions, GitHub Copilot, Amazon Q, LangChain, LlamaIndex, MCP, A2A
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1mo
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Senior RAG Engineer
New York or Norway or Sweden or Ireland or United States
RemoteFull Time
Newcode.ai
Newcode.ai: N AI legal-workflow platform serving law firms, Fortune 500 companies, and in-house legal teams.
5+ YOE5+ years building backend production systems with 2+ years shipping retrieval/RAG; strong Python and FastAPI; experience running vector indexes (Qdrant), embeddings, PostgreSQL/Redis, OCR-heavy ingestion and IR metrics.
Python, FastAPI, Qdrant, PostgreSQL, Redis
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1w
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Software Engineer II
Glendale or New York City
$118k-$165k/yr HybridFull Time
Disney Entertainment
Disney EntertainmentNYSE: DIS: Entertainment is a media division producing and distributing film, television, streaming, and games for global audiences.
3+ YOE3+ years building production ML backends and REST APIs; Python, PyTorch or TensorFlow, FastAPI or Flask, MLflow or Weights & Biases, large-scale data processing, GitHub, Docker, and AWS/EKS required. Bachelor's degree required.
PyTorch, MLflow, FastAPI, Flask, Claude, GPT-4, Python, TensorFlow, Weights & Biases, PySpark, Pandas, Databricks, GitHub, Docker, AWS, EKS, LangChain, LangGraph, Datadog, Grafana, Conviva, Spark, Snowflake
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