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Senior Fastapi Developer Jobs in New York (NOW HIRING)

Photon

Full Stack Python Developer - NJ

Somerville, NJ · On-site

Senior Full-Stack Engineer - Python & Angular We are looking for a Senior Full-Stack Engineer with ... Experience with Django, FastAPI, or Flask * Strong experience building REST APIs and microservices

ACI Infotech

Sr Python Backend Developer

Manhattan, NY · On-site

Python Backend Developer Hybrid for NYC Long term Contract Job Summary We are looking for an ... Work with frameworks such as Django, Flask, or FastAPI * Integrate third-party APIs and external ...

Hapiko

Senior+ Backend Engineer

Brooklyn, NY · On-site

... fastAPI services for device auth, user management, and webhook integrations. • Create secure ... DevOps mindset, comfortable deploying, monitoring, and scaling • Experience with GenAI/LLM ...

Morgan Stanley

Senior AI Engineer

Manhattan, NY · On-site

$115K - $158K/yr

... as FastAPI or Flask. • Proven experience designing and delivering production-grade AI or LLM ... DevOps, or GitOps practices (e.g., Jenkins, GitHub Actions). Company : Morgan Stanley is a ...

Worky

Senior Software Engineer AI Products Agents

Manhattan, NY · On-site

$124 - $186/hr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

Senior Software Engineer, AI Products & Agents 45696 New York, NY, US, 10036 Technology New York ... Architect and build internal web applications using NextJS and FastAPI * Design and own backend ...

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Senior Fastapi Developer information

What does a Senior FastAPI Developer do?

A Senior FastAPI Developer designs, develops, and maintains backend web applications using the FastAPI framework in Python. They are responsible for building scalable APIs, optimizing performance, ensuring security best practices, and integrating with databases and external services. Senior developers also mentor junior team members, contribute to architecture decisions, and collaborate closely with front-end engineers and stakeholders to deliver robust software solutions.

What are the key skills and qualifications needed to thrive as a Senior FastAPI Developer?

To thrive as a Senior FastAPI Developer, you need deep expertise in Python, RESTful API design, and experience building scalable web backends, typically supported by a degree in computer science or related field. Familiarity with FastAPI, Docker, cloud platforms (such as AWS or Azure), and CI/CD tools is highly valued, along with proficiency in testing frameworks. Strong problem-solving, leadership, and communication skills help you collaborate effectively with cross-functional teams and mentor junior developers. These skills enable the delivery of robust, efficient, and maintainable APIs that support business goals and high user demands.

What are some common challenges faced by Senior FastAPI Developers when scaling applications, and how can these be addressed?

Senior FastAPI Developers often encounter challenges related to managing high concurrency, optimizing API performance, and ensuring robust security as applications scale. To address these, it’s important to implement asynchronous programming practices, leverage efficient database queries, and utilize API gateways for better traffic management. Collaboration with DevOps and QA teams is also essential to automate deployments and monitor system health, ensuring smooth scaling and reliable user experiences.

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The most popular types of Fastapi Developer jobs in New York are:

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For Senior Fastapi Developer jobs in New York, the most frequently searched job titles are:

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Senior Fastapi Developer jobs near you
Infographic showing various Senior Fastapi Developer job openings in New York as of August 2026, with employment types broken down into 81% Full Time, 6% Part Time, and 13% Contract. Highlights an 83% Physical, 5% Hybrid, and 12% Remote job distribution.

Senior Forward Deployed Software Engineer

IT Labs, LLC

Manhattan, NY • On-site

$120 - $180/hr

Other

PTO

Posted 28 days ago

Job description

We are looking for a Senior Forward Deployed Software Engineer to join a highly innovative deep-tech environment, working on complex engineering challenges at the intersection of software and AI

This is a hands‑on, customer-facing role where you will work across the full stack to understand customer problems, rapidly prototype solutions, and build production‑ready applications that deliver real value.

The Role

You will:

  • Work directly with customers to understand their engineering challenges and shape impactful software solutions.

  • Build rapid prototypes, gather user feedback, and iterate toward production‑ready applications.

  • Develop and maintain REST APIs and microservices using Python and FastAPI.

  • Work with data scientists and machine learning engineers to bring advanced physics models into customer‑facing applications.

  • Deploy and operate applications using Docker, Kubernetes, Helm, Terraform, AWS.

  • Collaborate with frontend engineers, designers, and platform teams to deliver end‑to‑end solutions.

  • Identify reusable components and contribute improvements to the core platform.

What We’re Looking For

  • Strong software engineering fundamentals and experience delivering applications to production.

  • Strong experience with Python, backend development, REST APIs, and microservices.

  • Experience with FastAPI or similar Python frameworks.

  • Hands‑on experience with Docker, Kubernetes, Helm, and Terraform.

  • Experience working with AWS

  • Ability to take ownership of complex problems and drive solutions end‑to‑end.

  • Strong problem‑solving skills and the ability to work effectively in ambiguous environments.

  • Excellent communication skills and confidence working directly with customers.

Nice to Have

  • Background in Mechanical Engineering, Physics, Aerospace, or another engineering discipline.

  • Experience with scientific computing, machine learning, simulation, or physics‑based applications.

  • Experience in a customer‑facing, solutions engineering, consulting, or forward‑deployed role.

Working Conditions

  • Full‑time, 40h/week

  • 1099 Contract initially

  • PTO provided

  • Background check required

Our values

We are a company that seeks the best for both our employees and clients, reaching beyond expectations in turning dreams into reality. Our way of working is rooted in our core values (Integrity, Excellence, Proactivity, Innovation, and People), with an expectation that our future colleagues will make these their second nature in their everyday work and life. We don’t ask for perfection, but we do appreciate people motivated to better themselves in every conceivable aspect.

About IT Labs

Founded in 2005, IT Labs is an international software tech company, specializing in purpose and process‑driven teams for high‑performance, innovation, transformation, and efficiency. Our HQ is in Palm Beach Gardens, Florida, and we have teams around the world - the UK, the Netherlands, Brazil, Argentina, Serbia, Croatia, BIH, Montenegro, North Macedonia, and the Middle East. We are constantly growing, and we would love for you to become part of our team!

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