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Senior Fastapi Developer 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)

Isomer

Senior Product Engineer (Chicago)

Chicago, IL · On-site

$150K - $250K/yr

... our Senior Full Stack Product Engineer, you'll be one of the early engineers shaping both the ... or Python/FastAPI. * Workflow Automation: Familiarity with building or integrating workflow ...

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

$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 ...

Northern Base

Senior AI ML Engineer

Chicago, IL · On-site

$120K - $130K/yr

ML engineering/Applied AI; production ML deployment; RAG and Agentic AI systems ... Python; model serving frameworks and API development such as FastAPI/MLflow; vector databases and ...

SITE Technologies

Senior Backend Software Engineer

IL · On-site +1

Design, develop, and maintain core backend APIs and services, primarily in Python and FastAPI ... Improve CI/CD pipelines, release practices, automated testing, and developer workflows * Develop ...

Fitch Group

Senior Gen AI Software Engineer

Chicago, IL · On-site

$126K - $166K/yr

Fitch Solutions is currently seeking a Senior Gen AI Software Engineer based out of our Chicago ... Build robust production infrastructure - Develop enterprise-scale APIs (FastAPI) for deployment ...

Fitch Solutions

Senior Gen AI Software Engineer

Chicago, IL

$126K - $166K/yr

Fitch Solutions is currently seeking a Senior Gen AI Software Engineer based out of our Chicago ... Build robust production infrastructure - Develop enterprise-scale APIs (FastAPI) for deployment ...

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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 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.

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 the most commonly searched types of Fastapi Developer jobs in Illinois? The most popular types of Fastapi Developer jobs in Illinois are:
What are popular job titles related to Senior Fastapi Developer jobs in Illinois? For Senior Fastapi Developer jobs in Illinois, the most frequently searched job titles are:
What job categories do people searching Senior Fastapi Developer jobs in Illinois look for? The top searched job categories for Senior Fastapi Developer jobs in Illinois are:
What cities in Illinois are hiring for Senior Fastapi Developer jobs? Cities in Illinois with the most Senior Fastapi Developer job openings:
Senior Fastapi Developer jobs near you
Infographic showing various Senior Fastapi Developer job openings in Illinois as of July 2026, with employment types broken down into 81% Full Time, 7% Part Time, 1% Temporary, and 11% Contract. Highlights an 83% Physical, 4% Hybrid, and 13% Remote job distribution.

Senior React & Python (FastAPI) Developer

Lorven Technologies

Chicago, IL • On-site

Full-time

Re-posted 9 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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