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Senior Fastapi Jobs in New York (NOW HIRING)

Newcode.ai

Senior FastAPI Developer

New York, NY · On-site

$59.50 - $78.75/hr

FastAPI: 3+ years * PostgreSQL / SQL * Redis: 2+ years Nice to have: RAG or vector search experience; LangChain or LlamaIndex; streaming over SSE, WebSocket or SignalR; Microsoft Graph and email ...

Newcode.ai

Senior FastAPI Developer

New York, NY · On-site

$59.50 - $78.75/hr

FastAPI: 3+ years * PostgreSQL / SQL * Redis: 2+ years Nice to have: RAG or vector search experience; LangChain or LlamaIndex; streaming over SSE, WebSocket or SignalR; Microsoft Graph and email ...

Newcode.ai

Senior FastAPI Developer

New York, NY · On-site

$59.50 - $78.75/hr

FastAPI: 3+ years * PostgreSQL / SQL * Redis: 2+ years Nice to have: RAG or vector search experience; LangChain or LlamaIndex; streaming over SSE, WebSocket or SignalR; Microsoft Graph and email ...

Accord Technologies Inc.

Senior AI Engineer

Piscataway, NJ · On-site

$106K - $146K/yr

Senior AI Engineer Location: Piscataway, NJ (Hybrid from day one) Local to NJ candidates are ... Develop APIs and endpoint services using FastAPI or Flask. * Collaborate with offshore teams to ...

Wise Skulls Corp.

Senior AI Engineer

Jersey City, NJ · On-site

$109K - $149K/yr

Senior AI Engineer Location: Hartford, CT | Blue Bell, PA | Jersey City, NJ | Arizona City, AZ ... Good skills on Java or Python frameworks such as Java Springboot or Python FastAPI * Strong AI ...

New

Revin AI

Senior Software Engineer

New York, NY · On-site

$200K - $275K/yr

Senior Software Engineer Location: New York, NY (on-site, 5 days a week) Compensation: $200,000 ... You'll work end-to-end across a Python/FastAPI backend, a Next.js/TypeScript dashboard, and the ...

DeweyLearn

Senior Python Engineer

Manhattan, NY · On-site

$100 - $130/hr

Build and maintain production backend services and APIs in Python (FastAPI) * Implement retrieval ... You have a proven track record as a senior Python developer, with at least 5 years of professional ...

New

Hapiko

Senior+ Backend Engineer

Brooklyn, NY · On-site

They are seeking a Senior Backend Engineer to own and evolve the real-time infrastructure behind ... fastAPI services for device auth, user management, and webhook integrations. • Create secure ...

Newcode.ai

Senior RAG Engineer

New York, NY · On-site

$134K - $176K/yr

Exposed through FastAPI, with ingestion and reindexing running as background jobs. * Design how we ... Backend depth without production retrieval won't be enough for this role, but our Senior Backend ...

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Senior Fastapi information

Is senior FastAPI in high demand?

Senior FastAPI developers are in high demand due to the framework's popularity for building fast, scalable APIs with Python. Companies seek experienced professionals skilled in asynchronous programming, RESTful API design, and deployment with tools like Docker and Kubernetes, making this a valuable skill set in the current job market.

Do any big companies use FastAPI?

Several large companies and tech organizations use FastAPI for building high-performance APIs due to its speed and ease of use. Notable examples include Microsoft, Uber, and Netflix, which leverage FastAPI alongside other modern Python frameworks for scalable backend development.

What is the salary of a senior Fastapi developer?

The salary of a senior Fastapi developer typically ranges from $100,000 to $150,000 annually, depending on experience, location, and company size. Strong knowledge of Python, RESTful APIs, and cloud deployment can influence compensation levels.

What is the difference between Senior Fastapi vs Backend Developer?

AspectSenior FastapiBackend Developer
Primary FocusBuilding APIs with Fastapi frameworkDeveloping server-side logic across various frameworks
Required SkillsPython, Fastapi, async programming, REST API designPython, multiple frameworks (Django, Flask, Fastapi), database management
Work EnvironmentTech companies, startups, cloud-based projectsVaried industries, enterprise and startup environments
CertificationsPython certifications, Fastapi experiencePython certifications, general backend development certifications

Senior Fastapi specialists focus specifically on building high-performance APIs using the Fastapi framework, often requiring expertise in async programming and REST API design. Backend Developers have a broader scope, working across multiple frameworks and technologies to develop server-side logic. While both roles require Python skills, Senior Fastapi roles are more specialized, whereas Backend Developers have a wider range of tools and responsibilities.

What are the most commonly searched types of Fastapi jobs in New York? The most popular types of Fastapi jobs in New York are:
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What job categories do people searching Senior Fastapi jobs in New York look for? The top searched job categories for Senior Fastapi jobs in New York are:
What cities in New York are hiring for Senior Fastapi jobs? Cities in New York with the most Senior Fastapi job openings:
Senior Fastapi jobs near you

Senior FastAPI Developer

Newcode.ai

New York, NY • On-site

$59.50 - $78.75/hr

Full-time

This job post has expired today. Applications are no longer accepted.

Job description

Who are we?

We build AI tools for firms in legal and professional services: software people use for real work, not demos. We started a few months ago and already have paying clients who rely on what we ship. The team is small and moving fast.

The role

You'll own the backend behind our AI features. That's the APIs, the data pipelines, and the orchestration sitting between our product and the language models doing the work. In practice it means running retrieval over large sets of documents, getting dependable results out of LLMs and their tool calls, streaming responses to the UI, and processing long jobs in the background without things falling over.


It isn't CRUD work. The hard parts here are keeping AI systems accurate and fast with confidential data, at production scale. You'll make architecture calls early and live with them.

Requirements

What You'll Do
  • Designing and building the APIs and services our products run on.
  • Working on the AI plumbing: retrieval, orchestration, tool-calling, response streaming, and the evals that tell us whether the output is any good.
  • Keeping async and distributed work reliable: document ingestion, embeddings, and long-running jobs on Redis.
  • Building integrations with the systems clients already use, like email and document stores, and making them hold up under load.
  • Taking data security and isolation seriously, since clients hand us confidential material.
Who You Are
  • At least seven years building backend systems that run in production. Depth matters more to us than the number.
  • You think about how things fail, not just how they behave when everything's fine.
  • You've built real LLM-powered systems, or you're itching to: RAG, tool-calling, agents. You know where they tend to break.
  • You use AI coding tools (Claude Code, Cursor, Copilot) and use them well. Faster output, but you understand and stand behind every line; you wouldn't approve sloppy AI-written code in review, so you don't ship it either.
  • You're fine in a startup that changes direction. Decisions get made, then revisited.
Experience we expect with the stack:
  • Python: 6+ years
  • FastAPI: 3+ years
  • PostgreSQL / SQL
  • Redis: 2+ years

Nice to have: RAG or vector search experience; LangChain or LlamaIndex; streaming over SSE, WebSocket or SignalR; Microsoft Graph and email integration work.

Benefits

Why Join Us?
  • Be a driver of innovation in one of Oslo’s most exciting AI ventures
  • Work with talented peers in a collaborative, high-energy team
  • Shape both product and culture as we grow
  • Flexible, English-speaking environment