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Senior Fastapi Jobs in Illinois (NOW HIRING)

NAVA Software Solutions

Sr. AI/ML Engineer

Deerfield, IL · On-site

$106K - $145K/yr

AI/ML Engineer Senior Advisor Location: Chicago IL -Hybrid - 3 days/week onsite Duration: 6-12 ... Practical experience building and serving REST APIs for inference (TF Serving, TorchServe, FastAPI)

MBR Partners

Senior Software Engineer

Chicago, IL · Remote

$150K/yr

With a back-end team in the Philippines, I'm currently hiring for a Senior Software Engineer ... FastAPI Experience with React, Redux (RTK), CSS modules Experience with CI/CD, Clouds (AWS/GCP ...

SITE Technologies

Senior Backend Software Engineer

IL · On-site +1

SITE Technologies is seeking a thoughtful and versatile Senior Backend Software Engineer to help ... Design, develop, and maintain core backend APIs and services, primarily in Python and FastAPI

OneStream Software

Senior AI Engineer

Chicago, IL · On-site

$107K - $147K/yr

Description Senior AI Engineer Location : Hybrid, United States Employment Type : Full-Time ... Experience with webservices and API frameworks (Flask, FastAPI, etc.). * Knowledge of distributed ...

OneStream

Senior AI Engineer

Chicago, IL · On-site

$107K - $147K/yr

Senior AI Engineer Location :  Hybrid, United States Employment Type : Full-Time Benefits ... Experience with webservices and API frameworks (Flask, FastAPI, etc.). * Knowledge of distributed ...

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Senior Fastapi information

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 Illinois? The most popular types of Fastapi jobs in Illinois are:
What are popular job titles related to Senior Fastapi jobs in Illinois? For Senior Fastapi jobs in Illinois, the most frequently searched job titles are:
What job categories do people searching Senior Fastapi jobs in Illinois look for? The top searched job categories for Senior Fastapi jobs in Illinois are:
What cities in Illinois are hiring for Senior Fastapi jobs? Cities in Illinois with the most Senior Fastapi job openings:
Senior Fastapi jobs near you
Infographic showing various Senior Fastapi job openings in Illinois as of July 2026, with employment types broken down into 2% Locum Tenens, 41% As Needed, 45% Full Time, 2% Contract, 9% Nights, and 1% Summer. Highlights an 81% Physical, 4% Hybrid, and 15% Remote job distribution.
Senior React & Python (FastAPI) Developer

Senior React & Python (FastAPI) Developer

Lorven Technologies

Chicago, IL • On-site

Full-time

Posted 18 days ago

Job description

Role: Senior React & Python (FastAPI) Developer
Location: Location: Chicago/Hybrid - 3 days a week
Job Description Overview
We are seeking a highly skilled Senior Full Stack Developer with deep expertise in React, Python, and FastAPI, and a proven ability to work independently with minimal supervision. The ideal candidate has 7+ years of hands-on experience building scalable, high-performance web applications, designing clean architectures, and delivering end-to-end solutions in fast-paced environments.
Key Responsibilities
Frontend (React)
  • Develop responsive, modular, and high-performance UI components using React, TypeScript, and modern frontend tooling.
  • Architect reusable components, hooks, and state-management patterns (Redux, Zustand, Recoil, or Context API).
  • Integrate RESTful APIs and WebSocket-based real-time features.
  • Optimize frontend performance, bundle size, and rendering efficiency.
  • Implement UI/UX best practices, accessibility standards, and cross-browser compatibility.

Backend (Python + FastAPI)
  • Design and develop scalable backend services and REST APIs using FastAPI.
  • Implement authentication, authorization, and role-based access control.
  • Build asynchronous, high-performance API endpoints leveraging FastAPI's async capabilities.
  • Integrate with relational and NoSQL databases (PostgreSQL).
  • Develop background tasks, schedulers, and event-driven workflows (SQS).
  • Write unit tests, integration tests, and ensure high code quality.

Required Skills & Experience
  • 7+ years of professional experience in full-stack development.
  • Strong proficiency in React, JavaScript/TypeScript, and modern frontend ecosystems.
  • Advanced experience with Python and FastAPI for backend development.
  • Solid understanding of REST APIs, microservices, and asynchronous programming.
  • Experience with SQL/NoSQL databases and ORM frameworks.
  • Ability to work independently, manage priorities, and deliver high-quality code with minimal oversight.
  • Excellent problem-solving skills and ability to design scalable solutions.

Preferred Qualifications
  • Experience with AWS Lambda, SQS, API Gateway, or serverless architectures.
  • Experience with automated testing frameworks (PyTest, Jest, React Testing Library).
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About Lorven technologies

Sourced by ZipRecruiter

Lorven Technologies, headquartered in Plainsboro, New Jersey, United States, is a reputable company in the technology industry, specializing in providing effective IT solutions and consulting services. The company's official website, lorventech.com, offers comprehensive insights into its offerings which include but are not limited to software development, IT consulting, project management, and business analysis. Since its inception, Lorven Technologies has been committed to ensuring efficiency and reliability in delivering IT services to its global clientele, establishing itself as a trusted name in the industry.

Industry

It services

Company size

51 - 200 Employees

Headquarters location

Plainsboro, NJ, US

Year founded

2001

Social media

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